442904-28-1Relevant articles and documents
One/two-photon cationic polymerization in visible and near infrared ranges using two-branched sulfonium salts as efficient photoacid generators
Wu, Xingyu,Jin, Ming,Xie, Jianchao,Malval, Jean Pierre,Wan, Decheng
, p. 363 - 371 (2016)
This paper describes the synthesis and photochemical behavior of two two-branched sulfonium-based photoacid generators (PAGs). The branched structure influences the optical properties of the PAGs by increasing absorption wavelengths and molar extinction c
Conjugated polymer with rigid donor poly(para-divinylphenylamino) backbone and pendant cyanoacetic acid acceptor for dye sensitized solar cells
Fang, Zhen,Wu, Danlu,Keinan, Shahar,Liu, Bin
, p. 2958 - 2965 (2014)
A donor backbone [poly(para-divinylphenylamino)]-acceptor (cyanoacetic acid side group) type conjugated polymer (P2) has been synthesized and used as the active material for dye-sensitized solar cells. DFT calculation shows that the insertion of vinyl lin
Dual donor-π-acceptor type organic dyes for efficient dye-sensitized solar cells
Chang, Pei-Yu,Wang, Po-Hsin,Lin, Wen-Churng,Yang, Chien-Hsin
, p. 9725 - 9738 (2016)
A series of novel triphenylamine (TPA)-based dyes that use double linkers between the electron donor and the electron acceptor are synthesized, characterized, and applied as photosensitizers for dye-sensitized solar cells. The dyes contain N-methylpyrrole (NMP) (MTPA-2 dye) and styrene (St) (STPA-2 dye), respectively, linkers on TPA. These linkers are expected to generate effective π-conjugation forming donor-π-acceptor (D-π-A) links. The photovoltaic performance of the dyes depends on the linker type. For the dual-St-π-linked dye, the charge transfer from the excited dye molecules to the conduction band of TiO2 is improved, making the efficiency of the corresponding devices higher than those of dye-based devices with NMP linkers and no linkers. The device with the dye bearing positions of C3 and C4 on NMP linkers has the lowest conjugation effect and efficiency. In particular, the STPA-2 dye shows a broad incident-photon-to-current conversion efficiency response with a signal of up to 700 nm, covering most of the ultraviolet-visible light region. Device efficiencies of 5.43% and 7.56% for dye-sensitized devices using the STPA-2 dye and the cis-RuL2(NCS)2 (N3) dye, respectively, were fabricated using the same method and measured under AM 1.5 irradiation.
Two-photon lithography in visible and NIR ranges using multibranched-based sensitizers for efficient acid generation
Jin, Ming,Xie, Jianchao,Malval, Jean-Pierre,Spangenberg, Arnaud,Soppera, Olivier,Versace, Davy-Louis,Leclerc, Tiffanie,Pan, Haiyan,Wan, Decheng,Pu, Hongting,Baldeck, Patrice,Poizat, Olivier,Knopf, Stephan
, p. 7201 - 7215 (2014/12/10)
We investigated methodically the one- and two-photon absorption properties of a series of multibranched triphenylamine-based chromophores incorporating 4-(methylthio)styryl fragments as external substituents. Some relevant structure-property relationships relative to these highly fluorescent compounds have been derived based on emission anisotropy measurements, quantum chemical calculations and the use of the exciton coupling theory. Even though branching effects lead to a cooperative enhancement of the two-photon absorption (2PA), all compounds exhibit relatively low-to-moderate 2PA cross-sections (δ ≤ 100 GM) in the NIR region. However, the 'so-called' one-photon resonance enhancement effect leads to a remarkable increase of δ by more than one order of magnitude in the visible range. This strong 2PA ability has been associated with an efficient photosensitization of iodonium salt to elaborate a new bicomponent photoacid generator, which is readily two-photon activable at 532 nm. In the visible range, the strong enhancement of the efficiency of the two-photon induced polymerization is clearly demonstrated as compared with that observed in the NIR region. This journal is the Partner Organisations 2014.
Synthesis, photophysical and iron-sensing properties of terpyridyl-based triphenylamine derivatives
Fan, Congbin,Wang, Xiaomei,Ding, Ping,Wang, Jingjing,Liang, Zuoqin,Tao, Xutang
, p. 757 - 767 (2012/11/07)
A series of new terpyridyl phenyl/styryl triphenylamine chromophores were designed and synthesized. The branching number and the rigid/flexible bridge structures had a remarkable effect on the photophysical, selectivity and sensitivity for Fe(II) ion properties of these chromophores. The fluorescence lifetimes of the rigid terpyridyl phenyl triphenylamine chromophores are longer than that of the flexible terpyridyl styryl triphenylamine derivatives. The terpyridyl phenyl/styryl triphenylamine chromophores present an increasing fluorescence lifetime with the increase in the number of branches from 1 to 3. The terpyridyl flexible styryl triphenylamine derivatives have a higher sensitivity than that of the terpyridyl rigid phenyl triphenylamine derivatives for Fe(II) ion in neutral aqueous solution amongst other divalent metal ions such as Cu2+, Co2+, Ni2+, Hg2+, Mg2+, Pb2+, Zn2+.