Heterocyclic Conjugated Polydentate Ligands Facilitate Interfacial Charge Transfer of Air‐Processed Carbon‐Based All Inorganic Perovskite Solar Cells with an Efficiency Over 15%

Small, Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Abstract Modulating the charge transfer at buried interface is crucial in carbon‐based all‐inorganic perovskite solar cells(C‐PSCs). Nevertheless, most traditional organic modifiers present monofunctional and insulating characteristics which can impede transport potentially. Herein, a multifunctional heterocyclic conjugated polydentate modifier 4‐imidazolylacrylic acid (UA) was proposed to modify interface. The results indicate that UA act as roles due its electron delocalization feature, including increase conductivity of tin oxide film, passivate interfacial defects, suppress recombination, enhance energy level alignment, strengthen eventually enable high performance C‐PSCs prepared air. Consequently, champion device significant improvement open circuit voltage (1.26 V), short current density (15.69 mA cm −2 ), fill factor (79%) after modification, power conversion efficiency (PCE) increased from 11.91% 15.56% compared control device. Furthermore, long‐term stability unencapsulated modified maintains 80.59% initial glove box 800 h 82.86% air 400 h, exhibiting better than This research offers an innovative idea facilitate via ligand modification.

Язык: Английский

Regulation of the low-temperature processed TiO2 buried interface to enhance the efficiency of CsPbI2Br-based all-inorganic perovskite solar cells

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 163473 - 163473

Опубликована: Май 1, 2025

Язык: Английский