Localized PMMA Insulating Contact Layer

22.6% efficiency

This contact layer fills PTAA pinholes and chelates uncoordinated Pb²⁺ at the bottom, passivating the perovskite surface while inducing (111) preferred orientation growth and releasing residual strain.

Li, Ying · Chen, Yan · Yuanyuan, Guo · Liu, Zhimin · Xie, Haipeng · Tang, Dongsheng · Le-Man, Kuang · Zhai, Yaxin · Wang, Jifei

Advanced Science 2025

Specifications

提升超

{'zh': '5', 'en': ''} 倍

提升超

{'zh': '4', 'en': ''} 倍

Advantages

22.6% efficiency