25069-38-9Relevant academic research and scientific papers
Synthesis, photophysical and electrochemical properties and DSSC applications of triphenylamine chalcone dendrimers: Via click chemistry
Anandkumar, Devaraj,Ganesan, Shanmugam,Rajakumar, Perumal,Maruthamuthu, Pichai
, p. 11238 - 11249 (2017)
Fluorene-cored dendrimers containing a triphenylamine chalcone unit at the periphery have been synthesized by divergent methodology using a click chemistry approach, and their photophysical and electrochemical properties have been investigated. All of the dendrimers exhibited quasireversible oxidation reduction signals in cyclic voltammetry. All of the dendrimers were used as additives in dye-sensitized solar cells (DSSCs), and the higher generation dendrimers exhibited better power conversion efficiency than the lower generation dendrimers in solar energy harvesting systems.
Fabrication of a nanohybrid of conjugated polymer nanoparticles and graphene oxide for biosensing of trypsin
Noh, Jaeguk,Chae, Byung-Jae,Ku, Bon-Cheol,Lee, Taek Seung
, p. 1898 - 1904 (2014)
Conjugated polymers containing triphenylamine group are synthesized via Suzuki coupling polymerization. Fluorescent-conjugated polymer nanoparticles (CPN) are prepared by reprecipitation method using the newly synthesized conjugated polymer. CPN can be encapsulated with polyarginine by electrostatic interaction. The CPN modified with polyarginine exhibit excellent interaction with graphene oxide (GO) which is chemically modified with hydrophilic groups that possesses negative charge, which, in turn, induces the quenching of the fluorescence of CPN upon formation of CPN-GO nanohybrid. Upon exposure to trypsin, the quenched fluorescence is recovered by release of CPN from the nanohybrid, because trypsin cleaves the polyarginine linkage, resulting in weakening of interaction between CPN and GO. Copyright
New alternative copolymer constituted of fluorene and triphenylamine units with a tunable -CHO group in the side chain. Quantitative transformation of the -CHO group to -CH=CHAr groups and optical and electrochemical properties of the polymers
Fang, Qiang,Yamamoto, Takakazu
, p. 5894 - 5899 (2004)
A new alternative functional copolymer, PFT, comprising of fluorene and triphenylamine units with a tunable -CHO group in the side chain was synthesized by the polycondensation of 4-[N,N-di(4-bromophenyl)amino]benzaldehyde with 9,9-dihexylfluorene-2,7-bis
Efficient metal-free organic sensitizers containing tetraphenylethylene moieties in the donor part for dye-sensitized solar cells
Shi, Jie,Huang, Jing,Tang, Runli,Chai, Zhaofei,Hua, Jianli,Qin, Jingui,Li, Qianqian,Li, Zhen
, p. 5248 - 5255 (2012)
Two new propeller-shaped D-π-A organic sensitizers that contain two tetraphenylethylene (TPE) moieties in the donor part of the triphenylamine group have been designed and characterized. These dyes are composed of the same donor and acceptor units with different aromatic units introduced through linkers between the donor and acceptor units. The dye-sensitized solar cells (DSCs) based on LI-31 with 10 mM chenodeoxycholic acid (CDCA) show the best light-to-power conversion efficiency of 6.77 % (Jsc = 14.69 mA cm-2; Voc = 0.74 V; fill factor: ff = 0.62) under standard global AM 1.5 solar light conditions (100 mW cm-2). Copyright
o,p-Dimethoxybiphenyl Arylamine Substituted Porphyrins as Hole-Transport Materials: Electrochemical, Photophysical, and Carrier Mobility Characterization
Pudi, Rajesh,Rodríguez-Seco, Cristina,Vidal-Ferran, Anton,Ballester, Pablo,Palomares, Emilio
, p. 2064 - 2070 (2018)
Carrier mobility in organic thin films is a key parameter for devices that use molecules as selective contacts such as organic and perovskite solar cells. Herein, we describe the synthesis of a free base porphyrin symmetrically substituted with four meso-4-aminophenyl-N,N-bis(2′,4′-dimethoxy[1,1′-biphenyl]-4-yl) units and its metalloporphyrin. The electrochemical and photophysical properties for both porphyrins have been measured. The results show that the HOMO and LUMO energy levels are appropriate for use as hole transport materials (HTM) in solar cells. Moreover, measurements of the carrier mobility by using the space charge limited current (SCLC) method in organic thin films leads to a hole mobility value of 2.4 ± 0.5 × 10–5 cm2/V s and 8.0 ± 0.5 × 10–6 cm2/V s for the zinc porphyrin and the free base, respectively. Upon addition of chemical dopants, the mobility values increased to 8.8 ± 0.5 × 10–4 cm2/V s, for the zinc porphyrin, and 5.2 ± 0.5 × 10–4 cm2/V s for the free base porphyrin. These values are close to the reference molecule spiro-OMeTAD, which has a mobility value of 2.5 ± 0.5 × 10–4 cm2/V s measured under identical conditions.
The molecular engineering, synthesis and photovoltaic studies of a novel highly efficient Ru(ii) complex incorporating a bulky TPA ancillary ligand for DSSCs: Donor: versus π-spacer effects
Abdellah, Islam M.,El-Shafei, Ahmed
, p. 610 - 619 (2019)
A novel Ru(ii) complex, denoted as IA-7, incorporating a bulky donor antenna, was synthesized and characterized as a promising inexpensive alternative to conventional p-n junction solar cells to study the influence of a bulky donor antenna on the light ha
Molecular engineering and investigation of new efficient photosensitizers/co-sensitizers based on bulky donor enriched with EDOT for DSSCs
Abdellah, Islam M.,Koraiem, Ahmed I.,El-Shafei, Ahmed
, p. 244 - 256 (2019)
Herein, we report design, synthesis and photovoltaic performance of four novel metal-free heteroaromatic photosensitizers coded IA 1-4 with (D-D)2-D-A architecture carrying electron donating triphenylamine coupled with EDOT core which is direct
Dinuclear cyclometalated iridium (III) complex containing functionalized triphenylamine core: synthesis, photophysics and application in the single-emissive-layer WOLEDs
He, Keqi,Su, Ning,Junting, Yu,Liu, Yu,Xiong, Wenjing,Hao, Zhaoran,Ma, Dongge,Zhu, Weiguo
, p. 7164 - 7169 (2016)
To obtain highly efficient white-emitting devices, a novel functionalized dinuclear iridium (III) complex of C8TPA(FIrpic)2was successfully synthesized and characterized. In this phosphor, FIrpic is a blue-emitting phosphorescent chr
Single-Molecule White-Light-Emitting Starburst Donor-Acceptor Triphenylamine Derivatives and Their Application as Ratiometric Luminescent Molecular Thermometers
Ajantha, Joseph,Yuvaraj, Palani,Karuppusamy, Masiyappan,Easwaramoorthi, Shanmugam
supporting information, p. 11319 - 11325 (2021/07/02)
White-light emission (WLE) from a single molecule is a highly desirable alternative to a complex mixture of complementary colour emitters, which suffers from poor stability and reproducibility for potential use in organic electronic devices and lighting a
Novel triphenylamine-connected indolinium fluorescence sensor for detection of the cyanide anion and DFT calculations
Dalkilic, Oguzhan,Lafzi, Ferruh,Kilic, Haydar,Saracoglu, Nurullah
supporting information, (2020/08/12)
A new triphenylamine based probe (TPA) for detection of the cyanide anion (CN?) was designed and synthesized. In aqueous solution, TPA showed rapid fluorescence response and excellent selectivity for CN? ions, and other anions did not affect the detection process. The probe displays a detection limit of 1.17 μM which is lower than the threshold (1.9 μM) regulated by the World Health Organization (WHO) for CN? ions in aqueous solution. The sensitivity and photophysical properties of TPA were investigated using UV–Vis spectrophotometry, fluorescence spectrofluorometry, and 1H NMR titration techniques. Density functional theory (DFT) calculations were carried out to better understand the relationship between the photophysical properties and the electronic structures of TPA and TPA-CN.
