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Effects of Additional Flexible and Rigid Structure on BDT-BDD Terpolymer and the Performance of Organic Solar Cells

Xin JingAnalytical and Testing Center, Qingdao University of Science and Technology, Qingdao 266042, ChinaXuebing LiChemistry Department, Paderborn University, 33098 Paderborn, GermanyYong ZhaoSchool of Materials Science and Engineering, Ocean University of China, Qingdao 266100, ChinaQuanliang WangSchool of Materials Science and Engineering, Ocean University of China, Qingdao 266100, ChinaXiao KangSchool of Materials Science and Engineering, Ocean University of China, Qingdao 266100, ChinaXiaojie LiuSchool of Materials Science and Engineering, Ocean University of China, Qingdao 266100, ChinaAziz SaparbaevInstitute of Ion-Plasma and Laser Technologies, Uzbekistan Academy of Sciences, 33, Durmon yuli, Tashkent 100125, UzbekistanLi FengAnalytical and Testing Center, Qingdao University of Science and Technology, Qingdao 266042, ChinaMingliang SunSchool of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China

Polymersjournal2025en

ABI

Annotatsiya

In organic solar cells, the aggregation and crystallization of polymers are significant for bulk heterojunction. Blending with acceptor materials, polymer donor materials can adjust their aggregation by the movement of the chain segments. In this paper, the unfused structures based on thiophene and carbazole are respectively designed and introduced into the donor-acceptor copolymer donor materials to investigate the influence of flexible and rigid structures on polymer-aggregation leading photoelectric performance. The material and quantum chemical property investigations show that the selection and design of the blocks are important for the properties of the terpolymers, and the resulting polymer:Y6 devices achieve improvements in performance from 13.85% to 15.66% (especially for fill factors from 63.37% up to 69.81%). This result contributes to designing and optimizing efficient polymers.

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Mavzular

Organic Electronics and Photovoltaics Conducting polymers and applications Molecular Junctions and Nanostructures

Identifikatorlar

DOI: 10.3390/polym17020248

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