205105-15-3Relevant articles and documents
Development of novel n-Type materials based on benzothiadiazole derivatives for organic photovoltaics: Effects of acceptor terminal substituents
Shibata, Yosei,Kono, Takahiro,Usui, Hiroyo,Yoshida, Yuji
supporting information, p. 680 - 682 (2015/05/27)
Novel n-type materials of BTD-CN (1) and BTD-CF3 (2) were synthesized for organic photovoltaics. Both materials show approximately the same HOMO-LUMO level and position of absorption peaks. However, the organic photovoltaic performance of a device with 1 is clearly higher than that with 2. In this paper, we discuss the effects of terminal substituents on film morphology, crystallinity, and photovoltaic performance. The results suggest that cyano-modified benzothiadiazole is useful because of its crystallinity, carrier recombination, and series resistance.