- Effect of ionic interaction on the mechanochromic properties of pyridinium modified tetraphenylethene
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A pyridinium modified tetraphenylethene-based salt shows aggregation-induced emission enhancement properties and irreversible mechanochromic behaviours.
- Hu, Ting,Yao, Bicheng,Chen, Xiujuan,Li, Weizhang,Song, Zhegang,Qin, Anjun,Sun, Jing Zhi,Tang, Ben Zhong
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- Hyperbranched polymers with aggregation-induced emission property for solution-processed white organic light-emitting diodes
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In this work, a new series of hyperbranched polymers of PFTPE-Ir(piq)3-X(X = 1, 5, 10) were designed and synthesized, in which tris(1-phenylisoquinoline)iridium(Ш) (Ir(piq)3) acts as red emission core and PFTPE acts as branches. The
- Wu, Dongyu,Zhang, Tiaomei,Sun, Jing,Wu, Yuling,Liao, Xiaoqing,Lu, Guojing,Yang, Jingjing,Wang, Hua,Li, Lu,Xu, Bingshe
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- Handy ratiometric detection of gaseous nerve agents with AIE-fluorophore-based solid test strips
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Exposure to odorless, colorless, tasteless and yet lethal nerve gases could lead to paralysis of the central nervous system, organ failure or even rapid death. Hence it is of great importance to develop a convenient, portable and rapid detection method for these gaseous nerve agents. Herein, based on the aggregation-induced emission (AIE) characteristics, a ratiometric fluorescent test-strip sensor (DPA-TPE-Py) for rapid, sensitive and selective detection of the gaseous nerve agent simulant diethyl chlorophosphate (DCP) has been developed. It is easy to prepare handy and portable solid test strips via direct deposition of AIE probes onto the filter paper. Moreover, when the test strips are exposed to DCP vapor, their fluorescence changes from yellow to orange red. The detection limit for DCP is as low as 1.82 ppb, lower than the reported Immediately Dangerous to Life or Health concentration (IDLH concentration). Such a strategy could provide helpful insights into designing convenient cost-effective ratiometric fluorescent sensors in the solid state as well as affording a portative method for detection of gaseous nerve agents.
- Huang, Shuailing,Wu, Yinglong,Zeng, Fang,Sun, Lihe,Wu, Shuizhu
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- A highly luminescent entangled metal-organic framework based on pyridine-substituted tetraphenylethene for efficient pesticide detection
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A novel pillared-layered entangled luminescent metal-organic framework [Zn2(bpdc)2(BPyTPE)] (1) (BPyTPE = (E)-1,2-diphenyl-1,2-bis(4-(pyridin-4-yl)phenyl)ethene) has been designed and constructed. The solvent-free 1 exhibits strong blue-green emission with an excellent fluorescence quantum yield of 99% and provides a facile and reversible method to sensitively and quantitatively detect trace pesticide of 2,6-dichloro-4-nitroaniline.
- Tao, Chen-Lei,Chen, Bin,Liu, Xun-Gao,Zhou, Li-Jiao,Zhu, Xiao-Li,Cao, Jun,Gu, Zhi-Guo,Zhao, Zujin,Shen, Liang,Tang, Ben Zhong
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- “Colorless-to-black” electrochromic and AIE-active polyamides: An effective strategy for the highest-contrast electrofluorochromism
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Electrofluorochromic (EFC) materials have gained extensive attention owing to their interesting modulations of fluorescence by an electric stimulus. However, the limited performances, especially the low fluorescence on/off contrast, significantly hampered
- Sun, Ningwei,Su, Kaixin,Zhou, Ziwei,Wang, Daming,Fery, Andreas,Lissel, Franziska,Zhao, Xiaogang,Chen, Chunhai
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- Light-emitting conjugated polymers with microporous network architecture: Interweaving scaffold promotes electronic conjugation, facilitates exciton migration, and improves luminescence
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Herein we report a strategy for the design of highly luminescent conjugated polymers by restricting rotation of the polymer building blocks through a microporous network architecture. We demonstrate this concept using tetraphenylethene (TPE) as a building
- Xu, Yanhong,Chen, Long,Guo, Zhaoqi,Nagai, Atsushi,Jiang, Donglin
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- Aggregation-induced emission-active hyperbranched polymers conjugated with tetraphenylethylene for nitroaromatic explosive detection
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This work develops a facile synthesis for aggregation-induced emission (AIE)-active hyperbranched polyglycidols (HPGs) to design a solid-state sensor for detecting nitroaromatic explosives. The tetraphenylethylene moieties were conjugated onto the periphery of the HPGs in a single step using dynamic boronate ester cross-linkers. The resulting AIE-active HPGs exhibited excellent AIE characteristics in tetrahydrofuran (THF)/H2O mixtures, emitting a strong blue fluorescence under UV irradiation. Dynamic light scattering and transmission electron microscopic analyses demonstrated that the self-assembled nanosized aggregates were stable in the THF/H2O mixture. The fluorescence of the aggregates was dramatically quenched by various nitro compounds, including 2,4,6-trinitrophenol (or picric acid; PA), 2,6-dinitrophenol, 4-nitrophenol, 4-nitrotoluene, and nitromethane. The nano-aggregates exhibited extraordinary sensitivity towards PA, with a Stern?Volmer constant (Ksv) of 2.27 × 104 M?1 and a limit of detection of 40 ppb. Paper strips encapsulating the aggregates exhibited a vivid visual quenching, promising the practical applicability of these polymers as solid-state sensors for the detection of nitroaromatic explosives.
- Augustine, Rimesh,Kalva, Nagendra,Kim, Il,Lee, Min Woong,Lee, Soo Jeong,Tran, Chinh Hoang
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- Polymeric optoelectronic materials with low-voltage colorless-to-black electrochromic and AIE-activity electrofluorochromic dual-switching properties
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In recent years, colorless-to-black electrochromic (EC) and electrofluorochromic (EFC) materials are attracting increasing interest for the fundamental scientific research and potential applications. In order to achieve multiple-response optoelectronic ma
- Chen, Zheng,Guan, Shaowei,Han, Yuntao,Yao, Hongyan,Yu, Tiechen
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- Highly selective ratiometric fluorescent recognition of histidine by tetraphenylethene-terpyridine-Zn(ii) complexes
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TPE-monoTpy and TPE-diTpy compounds (TPE = tetraphenylethene, Tpy = 2,2′:6′,2′′-terpyridine) were prepared and showed significant red shifts in fluorescence upon coordination to Zn(NO3)2 in THF : HEPES (1 : 4) solutions. These in sit
- Du, Jiao,Yu, Shanshan,Huang, Zeng,Chen, Liming,Xu, Yimang,Zhang, Guanyu,Chen, Qi,Yu, Xiaoqi,Pu, Lin
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- Conformational effect on fluorescence emission of tetraphenylethylene-based metallacycles
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Herein, we designed and constructed two metallacycles, 1 and 2, to illustrate the conformational effect of isomeric AIE fluorophores on the platform of supramolecular coordination complexes (SCCs). Speci?cally, the dangling phenyl rings in TPE units of th
- Guo, Zhewen,Zhao, Jun,Liu, Yuhang,Li, Guangfeng,Wang, Heng,Hou, Yali,Zhang, Mingming,Li, Xiaopeng,Yan, Xuzhou
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- An AIE-active dual fluorescent switch with negative photochromism for information display and encryption
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A negative photochromic molecular switch with AIE and two-color fluorescence conversion properties was synthesized. This molecular switch was constructed by connecting two propyl sulfonic acid modified spiropyrans with one tetraphenylethene covalently, an
- Li, Zhize,Liu, Lulu,Liu, Yifei
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- Direct detection of ultralow trace amounts of isocyanates in air using a fluorescent conjugated polymer
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A fluorescence sensory polymer containing the pentiptycene and tetraphenylethylene units linked by acetylene was synthesized for direct detection of isocyanates in air. Eight industrially available aliphatic and aromatic isocyanates were tested. The polym
- Ghosh, Khama Rani,Saha, Sukanta Kumar,Gao, Jian Ping,Wang, Zhi Yuan
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- Facile preparation of a tetraphenylethylene-doped metal-organic framework for white light-emitting diodes
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A highly emissive fluorophore, 1,2-bis(4-(4-carboxyphenyl))-1,2-diphenylethene (H2BCPPE), has been successfully introduced into a bio-MOF-101-archetype structure via solvent-assisted ligand exchange (SALE). The crystallinity and topological structure of the as-synthesized compound are retained after ligand exchange. The exchange ratio of the BCPPE ligand in bio-MOF-101-BCPPE reaches 18.3 mol% as determined by 1H NMR spectra of the dissolved samples. Additionally, bio-MOF-101-BCPPE exhibits broadband white emission with CIE coordinates of (0.35,0.36), under an excitation wavelength of 375 nm and an applied bias of 3 V; therefore, it can be used as a white light-emitting diode (WLED). This work can be easily extended to other porous materials for the design and preparation of new light devices.
- Zhao, Si-Si,Zhang, Hang,Wang, Lei,Chen, Li,Xie, Zhigang
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- Synthesis and Structure of meso-Substituted Dibenzihomoporphyrins
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Bench-stable meso-substituted di(p/m-benzi)homoporphyrins were synthesized through acid-catalyzed condensation of dipyrrole derivatives with aryl aldehydes. The insertion of a 1,1,2,2-tetraphenylethene (TPE) or but-2-ene-2,3-diyldibenzene unit in the porp
- Grover, Nitika,Emandi, Ganapathi,Twamley, Brendan,Khurana, Bhavya,Sol, Vincent,Senge, Mathias O.
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- Enhancing Selectivity and Kinetics in Oxidative Photocyclization by Supramolecular Control
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Photochemical reactions typically proceed via multiple reaction pathways, yielding a variety of isomers and products. Enhancing the selectivity is challenging. Now, the potential of supramolecular control for oxidative photocyclization of a tetraarylethyl
- Haldar, Ritesh,Diring, Stéphane,Samanta, Pralok K.,Muth, Marius,Clancy, William,Mazel, Antoine,Schlabach, Sabine,Kirschh?fer, Frank,Brenner-Wei?, Gerald,Pati, Swapan K.,Odobel, Fabrice,W?ll, Christof
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- Circularly polarized luminescence of single-handed helical tetraphenylethylene-silica nanotubes
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Two single-handed helical tetraphenylethylene-silica nanotubes with circularly polarized luminescence (CPL) properties and enhanced fluorescence efficiency were fabricated through a supramolecular templating approach using the self-assemblies of chiral ge
- Cai, Xinye,Du, Jun,Zhang, Lianglin,Li, Yi,Li, Baozong,Li, Hongkun,Yang, Yonggang
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- Synthesis of new aryl and hetaryl dibromides and diiodides, the monomers for preparation of polyarylene ethynylenes
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Dibromides and diiodides with quinoxaline, phenylimidazole, and hexa-or pentaphenylarylene fragments were synthesized from dihalotolans obtained from chloral. Oligoarylene ethynylenes were synthesized by the reaction of the monomers with equimolar amounts of diethynyl aromatic compounds in the presence of the Pd11 complex. Oligomers with imidazole and hexa(penta)arylbenzene cycles are soluble in amide organic solvents and their reduced viscosities do not exceed 0.09 dL g-1.
- Rusanov,Keshtov,Begretov,Khotina,Mikitaev
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- An AIE-based fluorescent test strip for the portable detection of gaseous phosgene
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An AIE-based fluorescent test strip (OPD-TPE-Py-2CN) for rapid and sensitive detection of gaseous phosgene was designed. The fluorescence changes from blue to green upon exposure to phosgene. And the detection limit (1.87 ppm) is lower than the harmless l
- Xie, Huiting,Wu, Yinglong,Zeng, Fang,Chen, Junjie,Wu, Shuizhu
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- Mitochondria-targeted aggregation induced emission theranostics: Crucial importance of: In situ activation
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Tissue selective targeting and specific suborganellular localization combined with an efficient pathology associated enzymatic activation of drugs in drug delivery systems may exhibit a clear advantage over conventional cancer treatment. Here, a mitochond
- Shin, Weon Sup,Lee, Min-Goo,Verwilst, Peter,Lee, Joung Hae,Chi, Sung-Gil,Kim, Jong Seung
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- Direct observation of intramolecular coplanarity regulated polymorph emission of a tetraphenylethene derivative
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Polymorphism makes it possible to clarify the relationship between emission property and crystal structure. However, based on the exact molecular conformation in tetraphenylethene polymorphisms, it is still challenging to evaluate the difference of intramolecular coplanarity without the support of calculation because of the complex combination of four different torsion angles between four peripheral benzenes and the central ethylene plane. Here, by using a di-formyl-functionalized tetraphenylethene derivative, two ideal polymorphisms with a consistent trend of the corresponding torsion angles have been obtained. For the first time, we explicitly demonstrated that intramolecular coplanarity is the underlying cause of the polymorphism-dependent emission of tetraphenylethene derivatives.
- Qi, Qingkai,Jiang, Shan,Qiao, Qinglong,Wei, Jinbei,Xu, Bin,Lu, Xiaocun,Xu, Zhaochao,Tian, Wenjing
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- Control of luminescence in conjugated polymers through control of chain microstructure
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The development of semiconducting polymers with high solid-state luminescence efficiencies has enabled the fabrication of efficient polymer light-emitting diodes. Luminescence is often quenched in well-ordered molecular solids, as a result of inter-molecu
- Feast, W. James,Cacialli, Franco,Koch, Alex T.H.,Daik, Rusli,Lartigau, Christine,Friend, Richard H.,Beljonne, David,Bredas, Jean-Luc
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- A new AIE multi-block polyurethane copolymer material for subcellular microfilament imaging in living cells
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A multi-block fluorescent amphiphilic polyurethane copolymer (TPE-PU), self-assembling into hairy, water-soluble micelles, is used as a subcellular microfilament probe in living cells.
- Niu, Yu-Qing,He, Tao,Song, Jun,Chen, Si-Ping,Liu, Xiang-Yu,Chen, Zhi-Gang,Yu, Ying-Jie,Chen, Shi-Guo
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- Identification of the donor-substitution effect of tetraphenylethylene AIEgen: Synthesis, photophysical property analysis, and bioimaging applications
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Various aggregation-induced emission luminogen (AIEgen) derivatives based on TPE (tetraphenylethylene) containing the electron-donating moiety (–NMe2, –OMe) and bromine (–Br) moiety were prepared, which are key intermediates for tuning the emis
- Kim, Dokyoung,Kim, Na Hee
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- Configuration-controllable synthesis ofZ/Eisomers based ono-carborane-functionalized tetraphenylethene
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Z/Eisomerism is a very important and interesting phenomenon in the field of chemistry. In many cases, people ignore the difference betweenZ/Eisomers, and most studies investigate this hybrid system, thereby limiting the precise and in-depth understanding of the structure-performance relationship of materials. At present, only a fewZ/Eisomers of TPE derivatives can be separated, and the synthesis and separation of isomers modified by carborane substituents have not been reported. In this work, twoZ/Eisomers, namely,Z-TPE-2CarandE-TPE-2Car, with clear configuration were synthesized using an effective route. Both compounds have strong aggregation-induced luminescence (AIE) activity. The solid-state emission peaks ofZ-TPE-2CarandE-TPE-2Carare 528 and 533 nm, respectively, and the emission peaks are shifted by 5 nm. The introduction of phenyl carborane substituents makes the two isomers have high solid-state fluorescence quantum yields, reaching 99% and 90%, respectively.
- Zhou, Qin,Zhu, Miao,Chen, Wei,Qin, Na,Liu, Yujie,Zhang, Weihua,Li, Xiang,Sha, Ye,Yan, Hong
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supporting information
p. 12830 - 12837
(2021/08/03)
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- Synthesis and photophysical properties of tetraphenylethylene derivatives as luminescent downshifting materials for organic photovoltaic applications
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Luminescent Down-Shifting (LDS) is an optical approach applied in several photovoltaic (PV) technologies in which high energy solar radiation is converted to a wavelength region where the response of the photovoltaic devices is better. The use of LDS laye
- Barros, Hélio Lopes,Brites, Maria Jo?o,Esteves, Maria Alexandra
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- Halogen Bonding Tetraphenylethene Anion Receptors: Anion-Induced Emissive Aggregates and Photoswitchable Recognition
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A series of tetraphenylethene (TPE) derivatives functionalized with highly potent electron-deficient perfluoroaryl iodo-triazole halogen bond (XB) donors for anion recognition are reported. 1H NMR titration experiments, fluorescence spectroscopy, dynamic light scattering measurements, TEM imaging and X-ray crystal structure analysis reveal that the tetra-substituted halogen bonding receptor forms luminescent nanoscale aggregates, the formation of which is driven by XB-mediated anion coordination. This anion-coordination-induced aggregation effect serves as a powerful sensory mechanism, capable of luminescence chloride sensing at parts per billion concentration. Furthermore, the doubly substituted geometric isomers act as unprecedented photoswitchable XB donor anion receptors, where the composition of the photostationary state can be modulated by the presence of a coordinating halide anion.
- Beer, Paul D.,Davis, Jason J.,Docker, Andrew,Kuhn, Heike,Langton, Matthew J.,Shang, Xiaobo,Yuan, Daohe,Zhang, Zongyao
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p. 19442 - 19450
(2021/07/31)
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- Vinyl Groups Containing Tetraphenylethylene Derivatives as Fluorescent Probes Specific for Palladium and the Quenching Mechanism?
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We previously reported that a series of tetraphenylethylene (TPE)-containing all-hydrocarbon conjugated polymers exhibited a specific fluorescence quenching by palladium ions (Pd2+). To understand the quenching mechanism, herein we investigate
- Chen, Zhong-Ren,Liu, Xiaoqing,Shang, Yuxuan
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supporting information
p. 1599 - 1605
(2021/05/17)
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- METHOD OF DETECTING HUMAN SERUM ALBUMIN IN BIOLOGICAL FLUIDS
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A method for human serum albumin (HSA) detection in a biological fluid using small molecule, fluorescent compounds having aggregation-induced emission (AIE) characteristics includes contacting the biological fluid with a fluorescent compound to provide a mixture, irradiating the mixture with ultraviolet light, and determining a presence of human serum albumin when an observable emission is detected. The fluorescent compound binds with human serum albumin in the biological fluid and the binding of the compound with the human serum albumin produces the emission. The biological fluid can be urine. The compounds can be water soluble and can include tetrazole-tagged AIEgens. The present methods can be performed using conventional fluorescent spectrometers, normally present in hospitals, or using an HSA detection device. The HSA detection device is portable and can be used by a patient at home.
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(2020/03/23)
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- Efficient bipolar AIE emitters for high-performance nondoped OLEDs
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Three luminogens were designed and synthesized by integratingTPEwith hole-transporting carbazole (Cz) and/or electron-transporting 1,2-diphenyl-1H-benzimidazole (PBi), and bare tetraphenylethene and another donor-acceptor (D-A) compound with aggregation-caused quenching (ACQ) were also prepared for comparison. In nondoped OLEDs, the best one with both aggregation-induced emission (AIE) properties and donor-acceptor (D-A) structures showed excellent performances withLmax, CEmax, PEmax, and EQEmaxof 24 308 cd m?2, and 15.10 cd A?1, 14.82 lm W?1, and 5.34%, respectively, which reached the theoretical limit of fluorescent OLEDs.
- Bai, Yongqi,Cao, Liang,Ge, Ziyi,Wang, Tao,Wei, Qiang,Zhang, Jiasen
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supporting information
p. 11771 - 11777
(2020/09/16)
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- Tetraphenylethylene borate pyridinium salt, preparation method and application thereof, and reagent and method for detecting fructose
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The invention provides tetraphenyl ethylene borate pyridinium salt, a preparation method and application thereof, and a reagent and method for detecting fructose. The structural formula of the tetraphenyl ethylene borate pyridinium is shown as a formula (
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Paragraph 0083-0087
(2020/07/28)
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- A symmetric nonpolar blue AIEgen as nondoped fluorescent OLED emitter with low efficiency roll-off
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Blue emitters are necessary for achieving full-color displaying OLEDs, however, most blue emitters show low efficiency, short lifetime or serious efficiency roll-off, hindering the development of OLED techniques. In this research, a nonpolar symmetric agg
- Fei, Nannan,Wei, Qiang,Cao, Liang,Bai, Yongqi,Ji, Honglei,Peng, Ruixiang,Huang, Like,Shiyou, Hao,Ge, Ziyi
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- Diamine monomer containing tetraphenylethylene-diarylamine structure, preparation method and application of the diamine monomer in polyamide synthesis
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The invention discloses a diamine monomer containing a tetraphenylethylene-diarylamine structure, a preparation method and application of the diamine monomer in polyamide synthesis, belonging to the technical field of organic compounds. A polyamide materi
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Paragraph 0040-0041
(2020/01/08)
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- A four-styrene - double-phenanthro imidazole derivative and its preparation method
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The invention belongs to the field of organic light-emitting material, and in particular relates to a four-styrene - double-phenanthro imidazole derivatives preparation method thereof. The invention provides a four-styrene - double-phenanthro imidazole de
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Paragraph 0028-0030
(2019/05/16)
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- Styrene-bisphenanthroimidazole derivative, preparation method therefor and application of styrene-bisphenanthroimidazole derivative
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The invention provides a styrene-bisphenanthroimidazole derivative, a preparation method therefor and an application of the styrene-bisphenanthroimidazole derivative. The styrene-bisphenanthroimidazole derivative has a structural general formula represent
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Paragraph 0055-0059; 0092-0094
(2019/10/01)
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- A new luminescent metal-organic framework based on dicarboxyl-substituted tetraphenylethene for efficient detection of nitro-containing explosives and antibiotics in aqueous media
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In this work, we synthesized a dicarboxyl-substituted tetraphenylethene (TPE) ligand, 4,4′-(1,2-diphenylethene-1,2-diyl)dibenzoic acid (H2BCTPE), with a prominent aggregation-induced emission (AIE) feature. A two-fold interpenetrated luminescen
- Liu, Xun-Gao,Tao, Chen-Lei,Yu, Huang-Qin,Chen, Bin,Liu, Zhen,Zhu, Gen-Ping,Zhao, Zujin,Shen, Liang,Tang, Ben Zhong
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supporting information
p. 2983 - 2988
(2018/03/28)
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- LUMINOGENS FOR BIOLOGICAL APPLICATIONS
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A compound comprises a donor and an acceptor, wherein at least one donor ( "D" ) and at least one acceptor ( "A" ) may be arranged in an order of D-A; D-A-D; A-D-A; D-D-A-D-D; A-A-D-A-A; D-A-D-A-D; and A-D-A-D-A. The compound may be selected from the group consisting of: MTPE-TP, MTPE-TT, TPE-TPA-TT, PTZ-BT-TPA, NPB-TQ, TPE-TQ-A, MTPE-BTSe, DCDPP-2TPA, DCDPP-2TPA4M, DCDP-2TPA, DCDP-2TPA4M, TTS, ROpen-DTE-TPECM, and RClosed-DTE-TPECM. The compound may be used as a probe and may be functionalized with special targeted groups to image biological species. As non-limiting examples, the compound may be used in cellular cytoplasms or tissue imaging, blood vessel imaging, in vivo fluorescence imaging, brain vascular imaging, sentinel lymph node mapping, and tumor imaging, and the compound may be used as a photoacoustic agent.
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Paragraph 257
(2018/07/05)
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- Stereochemically Dependent Synthesis of Two Cu(I) Cluster-Based Coordination Polymers with Thermochromic Luminescence
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Two Cu(I) cluster based coordination polymers, [CuI(cis-bpype)]·CH3CN (1) and [Cu4I4(cis-bpype)3(trans-bpype)]·3DMF (2), have been synthesized from cis- and trans-1,2-bis(4-(pyridin-2-yl)phenyl)ethane (cis- and
- Zhao, Sisi,Wang, Lei,Liu, Yingjie,Chen, Li,Xie, Zhigang
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p. 13975 - 13981
(2017/11/24)
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- Targeted combinational therapy inducing mitochondrial dysfunction
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We report on a mitochondria-specific combinational theranostic agent, 1. This system contains a chlorambucil prodrug and an aggregation induced emission dye. In addition, compound 1 bears both an intracellular thiol-triggered moiety and a mitochondria targeting unit (triphenylphosphonium). Glutathione (GSH) is the most abundant thiol and its concentrations are significantly higher in a great number of cancer cell lines, compared to normal cells. The GSH-induced prodrug 1 upon activation releases chlorambucil and exhibits mitochondria targeted aggregation induced emission (AIE) fluorescence, resulting in cell apoptosis via the caspase pathway due to mitochondrial dysfunction.
- Shin, Weon Sup,Park, Soon Ki,Verwilst, Peter,Koo, Seyoung,Lee, Joung Hae,Chi, Sung-Gil,Kim, Jong Seung
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supporting information
p. 1281 - 1284
(2017/02/05)
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- Electropolymerized AIE-active polymer film with high quantum efficiency and its application in OLED
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A carbazole functionalized electro-active AIE-activity molecule, TPE-DFCz, was designed, synthesized, and well characterized. The clear difference in oxidation potentials between tetraphenylethylene (TPE) unit and carbazole groups was found which guaranteed that polymerization occurred only at the peripheral carbazole groups and the TPE unit remained unchanged. Its luminescent network film was prepared conveniently by electrochemical polymerization (EP). The cross-linked film exhibited green emission with high quantum efficiency of 63%, relatively smooth surface, and good thermal stability. The effect of different scan cycles on the optical property was also investigated. The electroluminescent device using the optimized polymer film as active layer showed a maximum luminance of 3200 cd?m?2 and a maximum luminance efficiency of 1.16 cd?A?1 with very low roll-off of the efficiency. The AIE-active EP films afford more opportunities to develop polymer films with high quantum efficiency via a simple, effective method and promote the potential applications in display devices.
- Li, Jinyu,Han, Xiao,Bai, Qing,Shan, Tong,Lu, Ping,Ma, Yuguang
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p. 707 - 715
(2017/01/11)
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- Synthesis of novel aggregation-induced emission liquid crystal materials, and applications of novel aggregation-induced emission liquid crystal materials in blue organic electroluminescent diodes
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The present invention discloses two classes of aggregation-induced blue light liquid crystal materials and applications of the aggregation-induced blue light liquid crystal materials in organic electroluminescent diodes. According to the present invention
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Paragraph 0028; 0036; 0037
(2017/08/19)
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- Stimuli-responsive solid-state emission from: O -carborane-tetraphenylethene dyads induced by twisted intramolecular charge transfer in the crystalline state
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We described herein a unique dual emission switching process from o-carborane-tetraphenylethene (TPE) dyads induced by twisted intramolecular charge transfer (TICT) in the crystalline state. Two novel o-carborane-tetraphenylethylene dyads, composed of a T
- Li, Junfeng,Yang, Chenglong,Peng, Xuelei,Chen, Ying,Qi, Qi,Luo, Xiaoyan,Lai, Wen-Yong,Huang, Wei
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- Compound, luminescent material, organic luminescent device and display device
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The invention relates to the technical field of OLED materials, and especially relates to a compound, a luminescent material, an organic luminescent device and a display device. The compound has a structure represented by formula (I) shown in the descript
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Paragraph 0056; 0057; 0058
(2017/10/07)
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- Incorporation of an aggregation-induced-emissive tetraphenylethene derivative into cationic gene delivery vehicles manifested the nuclear translocation of uncomplexed DNA
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A fluorophore displaying aggregation-induced emission was introduced at the terminus of branched polyethylenimine (PEI). The formulated polyplex not only demonstrated an improved safety profile and preserved transfection activity but also importantly indi
- Han, Xiongqi,Chen, Qixian,Lu, Hongguang,Guo, Pan,Li, Wei,Wu, Guolin,Ma, Jianbiao,Gao, Hui
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supporting information
p. 3907 - 3910
(2016/03/16)
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- Daylight-stimulated antibacterial activity for sustainable bacterial detection and inhibition
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Owing to the abuse of antibiotics, antibiotic resistance is spreading fast, which poses a potential threat to human beings. However, methods of the detection of bacterial viability, e.g., the plate count method, high-resolution microscopy, etc., require c
- Wu, Yuanhao,Chen, Qixian,Li, Qiaoying,Lu, Hongguang,Wu, Xinshi,Ma, Jianbiao,Gao, Hui
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p. 6350 - 6357
(2016/10/09)
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- Wavelength shift material and its preparation method, use
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The invention provides an under-wavelength transfer material as well as a preparation method and an application thereof. The structural formula of the under-wavelength transfer material is as shown in (I) or (II). According to the preparation method, the
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Page/Page column 0073; 0074; 0075; 0076; 0077
(2016/10/07)
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- Dimesitylboryl-functionalized tetraphenylethene derivatives: Efficient solid-state luminescent materials with enhanced electron-transporting ability for nondoped OLEDs
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Organic electroluminescent materials that can simultaneously serve as light-emitting and electron-transporting layers in one organic light-emitting diode (OLED) are very useful for simplifying device configuration, but there are not many. In this work, th
- Chen, Long,Lin, Gengwei,Peng, Huiren,Nie, Han,Zhuang, Zeyan,Shen, Pingchuan,Ding, Siyang,Huang, Dijie,Hu, Rongrong,Chen, Shuming,Huang, Fei,Qin, Anjun,Zhao, Zujin,Tang, Ben Zhong
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p. 5241 - 5247
(2016/07/06)
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- A self-assembly induced emission system constructed by the host-guest interaction of AIE-active building blocks
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Dibenzo[24]crown-8 (host) and benzylamine (guest) modified tetraphenylethenes are prepared and used to construct supramolecular polymers, which demonstrate the merits of reversible assembling-disassembling and tunable aggregation-induced emission by acid-base treatments.
- Bai, Wei,Wang, Zhaoyang,Tong, Jiaqi,Mei, Ju,Qin, Anjun,Sun, Jing Zhi,Tang, Ben Zhong
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supporting information
p. 1089 - 1091
(2015/02/19)
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- Water-soluble nano-fluorogens fabricated by self-assembly of bolaamphiphiles bearing AIE moieties: Towards application in cell imaging
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Nano-fluorogens with a mono-molecule layered structure are fabricated by self-assembly of a new bolaamphiphile bearing a tetraphenylethene moiety. The nano-fluorogens show good water-solubility, biocompatibility, and strong emission with a quantum yield as high as 15%. The nano-fluorogens, as prepared, are successfully applied to label and map HeLa cells. The images obtained have high contrast and resolution, showing a promising potential for fluorescence detection in bio-related systems.
- Xia, Yijun,Dong, Lin,Jin, Yingzhi,Wang, Shuai,Yan, Li,Yin, Shouchun,Zhou, Shixin,Song, Bo
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p. 491 - 497
(2015/02/19)
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- Ratiometric fluorescent biosensor for hyaluronidase with hyaluronan as both nanoparticle scaffold and substrate for enzymatic reaction
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Hyaluronidases (HAase) are involved in various physiological and pathological processes and have been reported as urinary marker for bladder cancer. In this study, a novel ratiometric fluorescent sensing system based on both aggregation-induced emission (
- Xie, Huafei,Zeng, Fang,Wu, Shuizhu
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p. 3383 - 3389
(2014/12/11)
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- Piezochromic luminescent and electroluminescent materials comprised of tetraphenylethene plus spirobifluorene or 9,9-diphenylfluorene
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In this work, a series of luminogens comprised of tetraphenylethene plus spirobifluorene or 9,9-diphenylfluorene are synthesized and characterized. Whereas these luminogens are weakly fluorescent in solutions, they are highly emissive in the aggregated state, with high fluorescence quantum yields up to 99% in solid films, demonstrating aggregation-induced emission characteristics. Reversible piezochromic luminescence is observed from the solids of the luminogens. A notable emission color change from blue (445 nm) to green (503 nm) is readily realized by grinding the pristine powder of the luminogen. The blue emission is recovered by fuming the ground powder with dichloromethane vapor. The undoped electroluminescence devices using the luminogens as light-emitting layers are fabricated, affording high current efficiencies up to 7.2 cd/A.
- He, Bairong,Chang, Zhengfeng,Jiang, Yibin,Xu, Xiaofei,Lu, Ping,Kwok, Hoi Sing,Zhou, Jian,Qiu, Huayu,Zhao, Zujin,Tang, Ben Zhong
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- AGGREGATION-INDUCED EMISSION LUMINOGENS FOR METAL ION DETECTION
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Pyridine-containing polyenes and their applications as metal ion sensors. These polyenes are practically nonluminescent in the solution state but become highly emissive as nanoparticle suspensions in aqueous solutions or thin films in the solid state, due
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Paragraph 0099
(2013/03/26)
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- Control of aggregation-induced emission by DNA hybridization
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Aggregation-induced emission (AIE) was studied by hybridization of dialkynyl-tetraphenylethylene (DATPE) modified DNA strands. Molecular aggregation and fluorescence of DATPEs are controlled by duplex formation.
- Li, Shaoguang,Langenegger, Simon M.,Haener, Robert
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supporting information
p. 5835 - 5837
(2013/07/19)
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- A conjugated hyperbranched polymer constructed from carbazole and tetraphenylethylene moieties: Convenient synthesis through one-pot "a 2 + B4" Suzuki polymerization, aggregation-induced enhanced emission, and application as explosive chemosensors and PLEDs
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In this paper, tetraphenylethylene (TPE) units, a well-known aggregation-induced emission (AIE) active group, are utilized to construct the hyperbranched polymer HP-TPE-Cz with carbazole moieties, a good hole-transporting and electroluminescent group, through an "A2 + B4" approach by using a one-pot Suzuki polycondensation reaction. For comparison, its analog linear polymer LP-TPE-Cz, also constructed from these two moieties, was prepared. These two polymers exhibit interesting aggregation-induced emission enhanced (AIEE) behavior and act as explosive chemosensors with high sensitivity both as nanoparticles and in solid state, due to the presence of TPE units. Also, the HP-TPE-Cz PLED device exhibited a remarkably enhanced current efficiency (2.13 cd A-1) and luminescence efficiency (5914 cd m-2), compared with its analog linear polymer LP-TPE-Cz (1.04 cd A-1, 1654 cd m-2). The Royal Society of Chemistry 2012.
- Wu, Wenbo,Ye, Shanghui,Huang, Lijin,Xiao, Li,Fu, Yingjie,Huang, Qi,Yu, Gui,Liu, Yunqi,Qin, Jingui,Li, Qianqian,Li, Zhen
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experimental part
p. 6374 - 6382
(2012/06/29)
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