79554-93-1Relevant articles and documents
Synthesis and properties of carbazole-containing poly(aryleneethynylenes) and poly(aryleneimines)
Takihana, Yoshihiro,Shiotsuki, Masashi,Sanda, Fumio,Masuda, Toshio
, p. 7578 - 7583 (2004)
Novel poly(aryleneethynylenes) and poly(aryleneimines) containing carbazole units in the main chain were synthesized by polycondensation of diethynylcarbazoles with dihaloarenes, or diformylcarbazole with phenylenediamines, and their general properties we
Architectural design of new conjugated systems carrying donor-π-acceptor groups (carbazole-CF3): Characterizations, optical, photophysical properties and DSSC's applications
Caglar, Mujdat,Caglar, Yasemin,Derince, Betul,Gorgun, Kamuran
, (2021/10/27)
In this study, two new organic dyes containing substituted N-octyl carbazole as electron donor and -CF3 units as electron acceptor group were designed and synthesized for ZnO-based dye sensitized solar cells (DSSCs). The synthesized carbazole derivatized compounds 3,6-bis(3,5-bis(trifluoromethyl)phenyl)-9-octyl-9H-carbazole (IVa) and 3,6-bis(4-(trifluoromethyl)phenyl)-9-octyl-9H-carbazole (IVb) were characterized by FT-IR, 1H NMR, 13C NMR, HMBC and CHN analyses. The spectroscopic (UV–Vis and FL) and thermal properties (TGA-DTA) of these compounds were also investigated. The produced (IVa and IVb) ZnO films were used as photoanodes in all DSSCs. Microwave-assisted hydrothermal method was used to synthesize ZnO nanopowders with different morphologies which are used as photoanodes in DSSCs. The structural and morphological properties of ZnO nanopowders were investigated using X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). ZnO-DSSCs were produced through coating ZnO nanopowders on transparent conductive fluorine-doped tin oxide (FTO) coated glass substrate using the Doctor Blade method. Current-voltage measurements of all produced DSSCs were carried out under a solar simulator with AM 1.5 G filter having an irradiance of 100 mW/cm2. Solar cell performances of all DSSCs such as; open-circuit voltage (Voc), short circuit current (Jsc), fill factor (FF) and power conversion efficiency (PCE) were analyzed.
Effect of mono- and di-anchoring dyes based on o,m-difluoro substituted phenylene spacer in liquid and solid state dye sensitized solar cells
Raju, Telugu Bhim,Vaghasiya, Jayraj V.,Afroz, Mohammad Adil,Soni, Saurabh S.,Iyer, Parameswar Krishnan
, (2019/11/26)
Novel mono- and di-anchoring organic dyes have been designed and synthesized with o,m-difluoro substituted phenylene spacer and were tested for DSSCs in presence of solid-state (SJE-4) as well as liquid (BMII) electrolytes. The new and simple structures o
Structural controlled pure metallo-triangular assembly through bisterpyridinyl Dibenzo[b,d]thiophene, Dibenzo[b,d]furan and Dibenzo[b,d]carbazole
Liu, Qianqian,Yang, Xiaoyu,Wang, Meng,Liu, Die,Chen, Mingzhao,Wu, Tun,Jiang, Zhiyuan,Wang, Pingshan
supporting information, p. 2400 - 2405 (2019/03/14)
A novel family of metallocycles was constructed by a one-pot self-assembly of three analogous bis(terpyridine) ligand monomers L1-L3, having different bent angles, with metal ions (Zn2+ or Cd2+). The dibenzo[b,d]thiophene-containing ligand L3 assembled with the metal ions to form a single trimer, whereas the dibenzo[b,d]furan-containing ligand L2 and dibenzo[b,d]carbazole-containing ligand L1 formed a mixture of trimers and tetramers. Heteroatoms (N, O, S) significantly contributed to the molecular size of the assemblies, owing to the bent angle of the bis-terpyridines ligands.
Phenyl-bridged and carboxyl-terminated A1-pi-A-D-A-pi-A1 type BT derivative and preparation method thereof
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Paragraph 0064; 0067; 0069, (2018/10/02)
The invention discloses a phenyl-bridged and carboxyl-terminated A1-pi-A-D-A-pi-A1 type BT derivative and a preparation method thereof. The preparation method of the phenyl-bridged and carboxyl-terminated A1-pi-A-D-A-pi-A1 type BT derivative comprises the
Dialkyl-substituted naphtho-dioxodibenzothiophene monomer and preparation method thereof and polymer containing dialkyl-substituted naphtho-dioxodibenzothiophene unit and application of polymer
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Paragraph 0061; 0062; 0063; 0064, (2017/08/28)
The invention discloses a dialkyl-substituted naphtho-dioxodibenzothiophene monomer and a preparation method thereof and a polymer containing a dialkyl-substituted naphtho-dioxodibenzothiophene unit and the application of the polymer. A high-absorption electron unit -SO2- exists in the dialkyl-substituted naphtho-dioxodibenzothiophene monomer, and thus the electron affinity of a molecule can be improved. Through introducing of an unsymmetrical substituting condensed ring structure and an alkyl group, the electron affinity of the monomer can be lowered, and meanwhile, solubleness of the monomer in organic solvent is improved greatly. The dialkyl-substituted naphtho-dioxodibenzothiophene monomer obtains a homopolymer or a copolymer containing the dialkyl-substituted naphtho-dioxodibenzothiophene unit through Suzuki or Stille or Yamamoto polymerization reaction, and the obtained polymer has good solubleness in the organic solvent, is suitable for solution processing, and has wide application prospects in preparation of electroluminescent devices, organic solar cells and organic field effect transistors.
Novel dual BODIPY-carbazole conjugates with various linkers
Zong, Qiao,Zhao, Hongbin,Zhou, Weinan,Zhang, Wentao,Liao, Junxu,Yang, Nianfa
, p. 806 - 815 (2017/07/07)
Four dual BODIPY-carbazole conjugates (BDPa-d, BODIPY is 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene), with various π bridges, including none, phenyl, thiophene, and furan, were designed and synthesized. The results suggest that the π bridges have significant effect on the thermal, photophysical, and electrochemical properties of the conjugates. BDPc and BDPd, with a five-membered heterocycle as a π bridge possessing more coplanar molecular geometry, exhibit broader and red-shifted absorption with an obvious charge transfer shoulder peak, as well as red-shifted emission. UV-visible absorption spectroscopy and cyclic voltammetry results show that the extension of the π-conjugated system leads to a reduction in the optical gap with a decrease of the LUMO level. All conjugates display remarkable Stokes shifts (107-216 nm) and low fluorescence quantum yields. BDPc and BDPd, which essentially possess broad and intense absorption, and suitable HOMO-LUMO energy levels, are potential candidates for light-harvesting and photovoltaic applications.
Synthesis and characterization of 1,3,5-triphenylamine derivatives with star-shaped architecture
Brzeczek, Alina,Karon, Krzysztof,Higginbotham, Heather,J?drysiak, Rafa? G.,Lapkowski, Mieczyslaw,Walczak, Krzysztof,Golba, Sylwia
, p. 25 - 32 (2016/06/09)
In this work we report the synthesis, electrochemical and optical properties of five new, star shaped compounds containing both carbazole and triphenylamine moieties, further endcapped with thiophene or 3,4-ethylenedioxythiophene units. Electrochemical, UV-visible spectroscopy and fluorescence methods were employed to study the properties of these compounds as well as their electropolymers. The basic characteristics such as the band gaps, HOMO and LUMO values, absorption and emission maximum wavelengths of the monomers and the polymers are reported and discussed.
Ni(COD)2 coupling of 3,6-dibromocarbazoles as a route to all-carbazole shape persistent macrocycles
Coumont, Leah S.,Veinot, Jonathan G.C.
supporting information, p. 5595 - 5598 (2015/09/21)
The number of applications for carbon-based materials has experienced tremendous growth over the last decade arising from their low toxicity, straight-forward chemical modification, and interesting electronic properties. Among these materials, self-assembled structures based on shape persistent macrocycles are perhaps the most exciting as they offer a means to prepare a wide range of morphologies through reversible assembly of these molecular precursors. In this letter, we report on the preparation of a novel family of all-carbazole shape persistent macrocycles through the simple single-step reaction of the corresponding 3,6-dibromocarbazoles over Ni(COD)2. The resultant macrocycles display optical properties characteristic of the parent N-alkyl polycarbazoles, with quantum yields ranging from 11% up to 21% suggesting that certain substituents induce the formation of highly emissive aggregates, which could potentially provide a mechanism for the preparation of functional self-assembled nanomaterials.
Boron ketoiminate-based conjugated polymers with tunable AIE behaviours and their applications for cell imaging
Dai, Chunhui,Yang, Dongliang,Zhang, Wenjie,Fu, Xiao,Chen, Qingmin,Zhu, Chengjian,Cheng, Yixiang,Wang, Lianhui
supporting information, p. 7030 - 7036 (2015/09/07)
Three new boron ketoiminate-based conjugated polymers P1, P2, and P3 were designed and synthesized through the Sonogashira coupling reaction of 4,6-bis(4-bromophenyl)-2,2-difluoro-3-phenyl-2H-1,3,2-oxazaborinin-3-ium-2-uide (M1) with 1,4-diethynyl-2,5-bis