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Mendeleev Commun., 2025 Volume 35, Issue 4, Pages 413–416 (Mi mendc7262)

Communications

Carbazole-based conjugated polymers with enhanced UV hardness: promising electron donor materials for stable organic solar cells

E. A. Komissarovaa, S. A. Kuklinab, P. M. Kuznetsova, A. N. Galiullinb, N. A. Slesarenkoa, P. A. Troshinca

a Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russian Federation
b A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119334 Moscow, Russian Federation
c Zhengzhou Research Institute, Harbin Institute of Technology, 450003 Zhengzhou, China

Abstract: Guided by the previously discovered relationships between the molecular structure of the conjugated polymers and their photostability, herein, we have successfully designed and synthesized new conjugated polymers incorporating thiophene, 2,1,3-benzotriazole and carbazole units employing the Stille coupling. The polymers exhibited record-high stability under UV light exposure, outperforming a well-known and fairly stable benchmark material, PCDTBT. The presented novel materials can be promising electron-donor components for the new generation of organic solar cells fitting the ‘golden triangle’, i.e., showing high efficiency, long operational lifetimes, and low cost of the used raw materials.

Keywords: conjugated polymers, organic solar cells, photostability, operational stability, UV light hardness, Stille reaction, carbazole.

Received: 12.12.2024
Accepted: 25.02.2025

Language: English

DOI: 10.71267/mencom.7708



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© Steklov Math. Inst. of RAS, 2025