Triarylamine/Bithiophene Copolymer with Enhanced Quinoidal Character as Hole-Transporting Material for Perovskite Solar Cells

Autor: Hao‐Sheng Lin, Takahiro Doba, Wataru Sato, Yutaka Matsuo, Rui Shang, Eiichi Nakamura
Rok vydání: 2022
Předmět:
Zdroj: Angewandte Chemie (International ed. in English). 61(27)
ISSN: 1521-3773
Popis: Polytriarylamine is a popular hole-transporting materials (HTMs) despite its suboptimal conductivity and significant recombination at the interface in a solar cell setup. Having noted insufficient conjugation among the triarylamine units along the polymer backbone, we inserted a bithiophene unit between two triarylamine units through iron-catalyzed C-H/C-H coupling of a triarylamine/thiophene monomer so that two units conjugate effectively via four quinoidal rings when the molecule functions as HTM. The obtained triarylamine/bithiophene copolymer (TABT) used as HTM showed a high-performance in methylammonium lead iodide perovskite (MAPbI
Databáze: OpenAIRE