Tuning Hole Transport Properties via Pyrrole Derivation for High-Performance Perovskite Solar Cells.
Angew Chem Int Ed Engl
; 62(15): e202300314, 2023 Apr 03.
Article
en En
| MEDLINE
| ID: mdl-36788422
ABSTRACT
Hole transport materials (HTMs) with high hole mobility, good band alignment and ease of fabrication are highly desirable for perovskite solar cells (PSCs). Here, we designed and synthesized novel organic HTMs, named T3, which can be synthesized in high yields with commercially available materials, featuring a substituted pyrrole core and triphenylamine peripheral arms. The capability of functionalization in the final synthetic step provides an efficient way to obtain a variety of T3-based HTMs with tunable energy levels and other properties. Among them, fluorine-substituted T3 (T3-F) exhibits the best band alignment and hole extraction properties, leading to PSCs with outstanding PCEs of 24.85 % and 24.03 % (certified 23.46 %) for aperture areas of 0.1 and 1â
cm2 , respectively. The simple structure and tunable performance of T3 can inspire further optimization for efficient PSCs.
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Banco de datos:
MEDLINE
Idioma:
En
Revista:
Angew Chem Int Ed Engl
Año:
2023
Tipo del documento:
Article
País de afiliación:
China