Design of (X-DADAD)n type copolymers for efficient bulk heterojunction organic solar cells

Alexander V. Akkuratov, Diana K. Susarova, Oleg V. Kozlov, Alexander V. Chernyak, Yuriy L. Moskvin, Lubov A. Frolova, Maxim S. Pshenichnikov, Pavel A. Troshin

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

We show that extended TBTBT structure (T = thiophene, B = benzothiadiazole) can be used as an electron-deficient building block for designing conjugated polymers with deeply lying HOMO energy levels and narrow band gaps. The first carbazole-TBTBT copolymer P2 demonstrated power conversion efficiencies exceeding 6% in bulk heterojunction solar cells in combination with advanced operational stability, unlike conventional donor polymers such as PTB7, PBDTTT-CF, etc.

Original languageEnglish
Pages (from-to)2013-2021
Number of pages9
JournalMacromolecules
Volume48
Issue number7
DOIs
Publication statusPublished - 14 Apr 2015
Externally publishedYes

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