Thiophene- and carbazole-modified triphenylamine-containing copolymers as hole-transporting materials for perovskite solar cells

2026-04-03

PRE

M.D. Tereshchenko

M.M. Agapitova

A.N. Zhivchikova

M.V. Gapanovich

E.O. Perepelitsina

D.A. Chernyayev

I.E. Kuznetsov

I.A. Zhukov

M.M. Tepliakova

A.V. Akkuratov *

DOI：10.1016/j.synthmet.2026.118157

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Abstract

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• Four novel hole-transporting polymers were synthesized. • Introducing thiophene units improved hole mobility, increasing device efficiency. • TPA(Si)-T polymer delivered champion performance with PCE of 17.8%. • Champion devices retained over 90% of initial efficiency, outperforming PTAA-based cells. • Alkylsilyl group modification shows promise for further PSC efficiency and stability improvements.

Keywords:

Thiophene

Triphenylamine

Hole-transporting polymer

Perovskite solar cells

Alkylsilyl group

Thiophene- and carbazole-modified triphenylamine-containing copolymers as hole-transporting materials for perovskite solar cells

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