Open AccessDefect passivation of perovskites in high efficiency solar cells
Author(s) -
Shaun Tan,
Tianyi Huang,
Yang Yang
Publication year - 2021
Publication title -
jphys energy
Language(s) - English
Resource type - Journals
ISSN - 2515-7655
DOI - 10.1088/2515-7655/ac2e13
Subject(s) - passivation , perovskite (structure) , materials science , photovoltaic system , fabrication , engineering physics , nanotechnology , optoelectronics , chemical engineering , electrical engineering , layer (electronics) , engineering , medicine , alternative medicine , pathology
Metal halide perovskite solar cells (PSCs) have enormous potential as the next-generation photovoltaic technology. Being solution-processed at relatively low temperatures, it is inevitable that crystallographic defects are formed in abundance during fabrication. Such defects may cause undesirable energy losses by non-radiative recombination to limit the performance of PSCs. More importantly, it has become apparent that defect activity is fundamentally responsible for the operational instability issues hindering the commercialization readiness of PSCs. It is therefore necessary to develop strategies to minimize defect formation and to passivate formed defects. Here, we discuss recent advances on such defect mitigation and passivation strategies. We especially emphasize on methodologies that are incorporated into state-of-the-art PSCs that have demonstrated world record efficiencies and long-term stability.