4181-05-9Relevant articles and documents
Fluorophore-functionalized graphene oxide with application in cell imaging
Lei, Lei,Ma, Hengchang,Yang, Manyi,Qin, Yanfang,Ma, Yucheng,Wang, Tao,Yang, Yuan,Lei, Ziqiang,Lu, Dedai,Guan, Xiaolin
, p. 12375 - 12379 (2017)
In this work, we fabricated a novel triphenylamine-derivative (DNDT)-modified nanographene oxide by following a simple gram-scale method. The product showed interesting optical properties and good potential for use in bioimaging applications. This fluorescent carbon material could be readily internalized by HepG2 cells and was clearly visualized to accumulate mainly in the nucleus.
Facile synthesis of triphenylamine and phenothiazine-based Schiff bases for aggregation-induced enhanced emission, white light generation, and highly selective and sensitive copper(ii) sensing
Anand, Vivek,Sadhasivam, Balaji,Dhamodharan, Raghavachari
, p. 18979 - 18990 (2018)
Two new Schiff bases, one triphenylamine-based (TPA-SB) and another phenothiazine-based (PTz-SB), were synthesized via facile reactions. Both molecules showed aggregation-induced enhanced emission (AIEE) properties. In fact, an 8-fold increase in the fluo
Novel D-π-A type triphenylamine based chromogens for DSSC: Design, synthesis and performance studies
Hosseinzadeh, Behzad,Beni, Alireza Salimi,Azari, Masoumeh,Zarandi, Maryam,Karami, Marzeih
, p. 8371 - 8381 (2016)
In this work, four novel D-π-A organic dyes (MH, MT, DT, DH) consisting of triphenylamine as an electron donor and 2,4-thiazolidinedione/hydantoin as anchoring groups were designed and synthesized for use in dye-sensitized solar cells (DSSCs). The synthesized dyes were characterized using FT-IR, NMR, mass spectrometry, absorbance and electrochemical measurements. The photophysical, electrochemical and photovoltaic properties of the solar cells based on these dyes were investigated to study the effect of two different anchoring groups on the performance of the dye-sensitized solar cells. The dye consisting of two hydantoin anchoring groups shows the highest conversion efficiency of 2.70% (short-circuit current = 7.60 mA cm-2, open circuit voltage = 570 mV, and fill factor = 0.62 under standard AM1.5G irradiation) compared to the other designed dyes. The observed results will provide basic information for the future design of sensitizers with different anchoring groups for photovoltaic applications.
A novel triphenylamine-based dye sensitizer supported on titania nanoparticles and the effect of titania fabrication on its optical properties
Moretti, Elisa,Aversa, Manuela,Scrivanti, Alberto,Storaro, Loretta,Talon, Aldo,Marin, Riccardo,Cecilia, Juan Antonio,Rodríguez-Castellón, Enrique,Polizzi, Stefano
, p. 218 - 230 (2015)
A new synthesised triphenylamine-based dye having a branched structure with one OH-ending branch able to interact with the surface hydroxyl moieties of mesoporous TiO2 is reported. Optical properties of the dye-titania hybrid material are presented and the higher efficiency of the dye on pure anatase TiO2 compared to the commercial Degussa P25, which contains a rutile phase component, is confirmed. The optical and chemical properties of the dye make it a promising candidate as a metal-free dye for DSSCs or as a host for a variety of transition or main group metal ions for different applications.
Triarylamine-Pyridine-Carbonitriles for Organic Light-Emitting Devices with EQE Nearly 40%
Chen, Yi-Kuan,Jayakumar, Jayachandran,Hsieh, Chia-Min,Wu, Tien-Lin,Liao, Chun-Cheng,Pandidurai, Jayabalan,Ko, Chang-Lun,Hung, Wen-Yi,Cheng, Chien-Hong
, (2021)
Highly efficient thermally activated delayed fluorescence (TADF) molecules are in urgent demand for solid-state lighting and full-color displays. Here, the design and synthesis of three triarylamine-pyridine-carbonitrile-based TADF compounds, TPAPPC, TPAmPPC, and tTPAmPPC, are shown. They exhibit excellent photoluminescence quantum yields of 79?100% with small ΔEST values, fast reverse intersystem crossing (RISC), and high horizontal dipole ratios (Θ//?= 86?88%) in the thin films leading to the enhancement of device light outcoupling. Consequently, a green organic light-emitting diode (OLED) based on TPAmPPC shows a high average external quantum efficiency of 38.8?± 0.6%, a current efficiency of 130.1?± 2.1?cd A–1, and a power efficiency of 136.3?± 2.2?lm W–1. The highest device efficiency of 39.8% appears to be record-breaking among TADF-based OLEDs to date. In addition, the TPAmPPC-based device shows superior operation lifetime and high-temperature resistance. It is worth noting that the TPA-PPC-based materials have excellent optical properties and the potential for making them strong candidates for TADF practical application.
Detection of nitroaromatics based on aggregation induced emission of barbituric acid derivatives
Zhang, Han-Jun,Tian, Yan,Tao, Fu-rong,Yu, William,You, Kai-Yue,Zhou, Lin-Rui,Su, Xi,Li, Tian-duo,Cui, Yue-Zhi
, (2019)
Barbituric acid derivatives with typical aggregation induced emission (AIE) are reported. Their emission wavelengths varied with water fraction of their solution. UV–visible absorption spectroscopy and theoretical calculations revealed the intramolecular
Real-Time Fluorescence in Situ Visualization of Latent Fingerprints Exceeding Level 3 Details Based on Aggregation-Induced Emission
Wang, Ya-Long,Li, Chong,Qu, Hong-Qing,Fan, Cheng,Zhao, Peng-Ju,Tian, Rui,Zhu, Ming-Qiang
, p. 7497 - 7505 (2020)
A water-soluble probe, TPA-1OH, with aggregation-induced emission activity is synthesized and used for expedient real-time fluorescence in situ visualization of latent fingerprints (LFPs). A TPA-1OH aqueous solution exhibits nonfluorescence in pure water
Synthesis and characterization of a new pillar[5]arene-based [1]rotaxane
Tian, Huasheng,Wang, Chunyu,Lin, Po-Han,Meguellati, Kamel
, p. 3416 - 3422 (2018)
In this study, we reported the synthesis of three kinds of mono-functional pillar[5]arene derivatives PRI, PRII and R and their structures were studied by 1D and 2D NMR spectra and mass spectra. The 2D NMR spectra including 1H-13C HSQC, 1H-1H COSY and NOESY spectra indicated that PRI and PRII are both stable self-included pseudo[1]rotaxanes in CDCl3. These original structures are promising compounds for the design of pillar[5]-based [1]rotaxane. And the results showed that R could exist stable in CDCl3 and DMSO because of the coordination of N-H?O hydrogen bonding interaction and C-H?π interaction.
Axial anchoring designed silicon-porphyrin sensitizers for efficient dye-sensitized solar cells
Liu, Jing,Yang, Xichuan,Sun, Licheng
, p. 11785 - 11787 (2013)
Using silicon as a central atom of porphyrin allows the introduction of axial ligands, which are not only employed to prevent the aggregation of the macrocycles but also anchor the dyes onto the TiO2 surface. A dye-sensitized solar cell with th
Axial-symmetric conjugated group promoting intramolecular charge transfer performances of triphenylamine sensitizers for dye-sensitized solar cells
Chen, Shaorui,Pei, Juan,Pang, Zhihan,Wu, Wenjun,Yu, Xudong,Zhang, Cong
, (2020)
The intramolecular charge transport (ICT) process directly determines the charge generation, transport, and even injection of the dye-sensitized solar cell (DSSC) sensitizer. Herein, we constructed a new series of D-π-A system by linking 4-methoxyphenyl and triphenylamine donors with an ethynyl group having an axial-symmetric conjugated system. Since the axisymmetric conjugate group overcomes the reduction of the conjugate characteristic caused by the plane distortion, the molecular ICT performance and the electronic recombination inhibition are effectively improved. As a result, the photoelectric conversion efficiency was increased from 3.43% to 6.37% by means of the extension of the π-bridge at same time. It provides a new idea for the design and development of DSSC sensitizers in the future.
