Journal
MENDELEEV COMMUNICATIONS
Volume 31, Issue 1, Pages 30-32Publisher
ELSEVIER
DOI: 10.1016/j.mencom.2021.01.008
Keywords
conjugated polymers; benzobisthiazole; fullerene acceptor; doctor-blade coating; organic solar cells
Categories
Funding
- Russian Foundation for Basic Research [18-33-20025]
- Ministry of Science and Higher Education of the Russian Federation [AAA-A19-119071190044-3 (0089-2019-0010)]
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Two conjugated polymers with different linkage of benzobisthiazole moieties were designed and synthesized for thin-film organic solar cells, among which the 2,6-BBT polymer showed enhanced performance compared to the 4,8-BBT polymer, possibly due to the optimal morphology of the blend film and higher charge carrier mobilities.
Two conjugated polymers with (X-DADAD)(n) backbone and 2,6- or 4,8-linked benzobisthiazole (BBT) moieties were designed, synthesized and characterized as absorber materials in thin-film organic solar cells (OSCs). The 2,6-BBT polymer (P1) delivered enhanced short circuit densities and power conversion efficiencies in OSCs compared to devices based on 4,8-BBT polymer P2. Improved photovoltaic performance is related to the optimal morphology of P1/PC71BM blend films and higher and more balanced charge carrier mobilities.
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