144012-09-9Relevant articles and documents
A crystalline D-π-A organic small molecule with naphtho[1,2-b:5,6- b′]dithiophene-core for solution processed organic solar cells
Dutta, Pranabesh,Park, Hanok,Lee, Woo-Hyoung,Kang, In-Nam,Lee, Soo-Hyoung
, p. 3183 - 3194 (2012)
In this work, we have designed and synthesized a new naphtho[1,2-b:5,6- b′]dithiophene-containing enlarged π-conjugated donor-acceptor (D-A) small molecule, NDT(TTz)2, for use in solution-processed organic photovoltaics. NDT(TTz)2, which contains a thiophene-bridged naphtho[1,2-b:5,6-b′]dithiophene as the central fused core and triphenylamine-flanked thiophene thiazolothiazole as a spacer, was synthesized via sequential Suzuki and Stille coupling reactions. The thermal, physiochemical, and electrochemical properties of NDT(TTz)2 have been evaluated by differential scanning calorimetry, thermogravimetry, UV-Vis spectroscopy, photoluminescence spectroscopy, X-ray diffraction, and cyclic voltammetry. As desired for photovoltaic applications, NDT(TTz)2 possesses good solubility, thermal stability, and a well-ordered, π-π stacked, crystallinity. The optical band gap and HOMO level of NDT(TTz) 2 were determined to be 2.0 eV and -5.23 eV, respectively. In addition to organic thin film transistor studies, application of NDT(TTz) 2 to preliminary photovoltaic devices has also been investigated by fabricating solution-processed bulk heterojunction solar cells together with PC71BM in a typical layered device structure, ITO/PEDOT:PSS/NDT(TTz) 2:PC71BM/LiF/Al. Without extensive optimization of the device, NDT(TTz)2 in these devices shows a maximum power conversion efficiency of 1.44% under AM 1.5 illumination at a 100 mW/cm2 intensity.
Novel s-tetrazine-based dyes with enhanced two-photon absorption cross-section
Quinton, Cassandre,Chi, San-Hui,Dumas-Verdes, Ccile,Audebert, Pierre,Clavier, Gilles,Perry, Joseph W.,Alain-Rizzo, Valrie
, p. 8351 - 8357 (2015/08/18)
This paper reports the synthesis and the linear and non-linear absorption properties of a series of new tetrazine-based D-π-A-π-D and D-π-A type dyes. In these derivatives, a central tetrazine core was connected with one or two terminal triphenylamine moi
A bolaamphiphilic sexithiophene with liquid crystalline triangular honeycomb phase
Bu, Wei,Gao, Hongfei,Tan, Xiaoping,Dong, Xing,Cheng, Xiaohong,Prehm, Marko,Tschierske, Carsten
, p. 1756 - 1758 (2013/03/14)
A new bolaamphiphile comprising a 5,5′′′′′- diphenyl-sexithiophene core with glycerol groups at each end and four lateral decyl chains was synthesized, which self-assembles into a liquid crystalline phase representing a nanoscale honeycomb composed of qua