Simultaneous Bulk and Surface Defect Passivation for Efficient Inverted Perovskite Solar Cells

Autor: Senlin Tang, Ying Peng, Zheng Zhu, Jiawei Zong, Lian Zhao, Longsheng Yu, Runfeng Chen, Mingguang Li
Rok vydání: 2022
Předmět:
Zdroj: The Journal of Physical Chemistry Letters. 13:5116-5122
ISSN: 1948-7185
DOI: 10.1021/acs.jpclett.2c01089
Popis: Structural defects in the bulk and on the surface of the perovskite layer serving as trap sites induce nonradiative recombination losses, limiting the performance improvement of perovskite solar cells (PSCs). Herein, we report a trometamol-induced dual passivation (TIDP) strategy to fix both bulk and surface defects of perovskites, where the trometamol molecule can simultaneously act as chemical additive and surface-modification agent. Studies show that trometamol as an additive can effectively reduce ionic defects and enhance the grain size of perovskites through Pb
Databáze: OpenAIRE