Two-Dimensional Polyfluorenes Bearing Thienylenevinylene π-Bridge-Acceptor Side Chains for Photovoltaic Solar Cells
Source abstract
Abstract
Two-dimensional polyfluorenes bearing thienylenevinylene-bridged malononitrile ( PF-BTDCN ) or diethylthiobarbituric acid accepting side chains ( PF-BTDTA ) have been successfully prepared. The polymers were fully characterized for their physicochemical, electrochemical, and photovoltaic properties. These polymers exhibited greatly changed properties with the introduction of π-conjugated accepting side chains. The enhancement of current density for the bulk-heterojunction solar cells was observed when replacing the PEDOT:PSS interfacial layer with molybdenum oxide (MoO 3 ). Photovoltaic solar cells with the configuration ITO/MoO 3 /polymer:PCBM/Al exhibited an efficiency of 3.13% and 1.72% for PF-BTDCN and PF-BTDTA, respectively. A morphology study revealed the existence of nanoscale phase separation with interpenetration networks between polymer and PCBM domains.
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
Key Laboratory of Soft Chemistry and Functional Materials (Ministry of Education of China), Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of China
Key Laboratory of Luminescence and Optical Information (Ministry of Education of China), Beijing Jiaotong University, Beijing 100044, People’s Republic of China
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