Utilizing Benzotriazole-Fused DAD-Type Heptacyclic Ring to Construct n-Type Polymer for All-Polymer Solar Cell Application
Source abstract
Abstract
Polymerizing small-molecule acceptor is a valid method for combining the advantages of small molecule acceptors and polymer acceptors. Here, a weak electron-deficient unit, benzo[d][1,2,3]-triazole (BTA) was fused to get the heptacyclic ring of dithienothiophen[3,2-b]-pyrrolobenzo[d][1,2,3]-triazole (TPBTA), which was utilized as DAD unit to synthesize a A′-DAD-A′-D′ type polymer acceptor (named as A702). After being blended with classic p-type polymer PBDB-T, a high PCE of 11.84% with an open-circuit voltage (VOC) of 0.9 V was achieved. Our results indicate the heptacyclic ring containing BTA unit can be regarded as an attractive option to build high-efficient PAs.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Organic Electronics and Photovoltaics · Conducting polymers and applications · Perovskite Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Green Catalysis Center and College of Chemistry, Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450001, P. R. China
CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P. R. China
Funding
Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Chinese Academy of Sciences
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