Theoretical study of thieno[3,4-c]thiophene, a nonclassical thiophene system
作者:Kenneth J. Miller、Karl F. Moschner、Kevin T. Potts
DOI:10.1021/ja00345a001
日期:1983.4
Synthesis of Benzo[<i>c</i>] and Naphtho[<i>c</i>]heterocycle Diesters and Dinitriles via Homoelongation
作者:Dong-Tsou Hsu、Chih-Hsiu Lin
DOI:10.1021/jo901754w
日期:2009.12.4
Syntheses of benzo[c] and naphtho[c]heterocycle diesters and dinitriles were achieved via our newly developed iterative elongation protocol. The photophysical and electrochemical properties of these conjugated systems are explored.
Functionalized Isothianaphthene Monomers That Promote Quinoidal Character in Donor–Acceptor Copolymers for Organic Photovoltaics
作者:Jessica D. Douglas、Gianmarco Griffini、Thomas W. Holcombe、Eric P. Young、Olivia P. Lee、Mark S. Chen、Jean M. J. Fréchet
DOI:10.1021/ma300589k
日期:2012.5.22
A series of low band gap isothianaphthene-based (ITN) polymers with various electron-withdrawing substituents and intrinsic quinoidal character were synthesized, characterized, and tested in organic photovoltaic (OPV) devices. The three investigated ITN cores contained either ester, imide, or nitrile functionalities and were each synthesized in only four linear steps. The relative electron-withdrawing strength of the three substituents on the ITN moiety was evaluated and correlated to the optical and electronic properties of ITN-based copolymers. The ester- and imide-containing p-type polymers reached device efficiencies as high as 3% in bulk heterojunction blends with phenyl C-61-butyric acid methyl ester (PC61BM), while the significantly electron-deficient nitrile-functionalized polymer behaved as an n-type material with an efficiency of 0.3% in bilayer devices with poly(3-(4-n-octyl)phenylthiophene) (POPT).