An Asymmetrical Polymer Based on Thieno[2,3-f]benzofuran for Efficient Fullerene-Free Polymer Solar Cells
Source abstract
Abstract
A novel conjugated D–A polymer, PTBFBz, with asymmetrical thieno[2,3-f]benzofuran (TBF) and fluorobenzotriazole (Bz) units was designed and synthesized for the first time. PTBFBz showed the strong absorption with a wide bandgap of 1.89 eV. Power conversion efficiency of nonfullerene polymer solar cells based on PTBFBz:ITIC with thermal and sequential solvent annealing reached up to 8.33%, which is the highest reported value among the asymmetrical TBF-based polymer solar cells. The results demonstrate that the asymmetrical TBF unit can be one of the most promising building blocks in constructing the wide bandgap polymers for highly efficient polymer solar cells.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Organic Electronics and Photovoltaics · Conducting polymers and applications · Semiconductor materials and interfaces
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
Funding
Ministry of Education of the People's Republic of China · National Natural Science Foundation of China
References (29)
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