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 language | English |
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Pages (from-to) | 680-682 |
Number of pages | 3 |
Journal | Chemistry Letters |
Volume | 44 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2015 Jan 1 |
Externally published | Yes |
ASJC Scopus subject areas
- Chemistry(all)