Development of novel n-Type materials based on benzothiadiazole derivatives for organic photovoltaics: Effects of acceptor terminal substituents

Yosei Shibata, Takahiro Kono, Hiroyo Usui, Yuji Yoshida

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)680-682
Number of pages3
JournalChemistry Letters
Volume44
Issue number5
DOIs
Publication statusPublished - 2015 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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