TY - JOUR
T1 - Novel Surface Passivation for Stable FA0.85MA0.15PbI3 Perovskite Solar Cells with 21.6% Efficiency
AU - Qian, Fang
AU - Yuan, Shihao
AU - Cai, Yuan
AU - Han, Yu
AU - Zhao, Huan
AU - Sun, Jie
AU - Liu, Zhike
AU - Liu, Shengzhong
N1 - Generated from Scopus record by KAUST IRTS on 2023-09-21
PY - 2019/7/1
Y1 - 2019/7/1
N2 - In planar perovskite solar cells (PSCs), defect-induced recombination at the interface between the perovskite and hole transport layer (HTL) leads to a large potential loss and performance deterioration. Therefore, an effective method for improving interfacial properties is critical to boost the performance and stability of PSCs. Herein, a novel surface engineering technology is reported for passivating the perovskite surface with the polyfluoro organic compound tris(pentafluorophenyl)boron (TPFPB), which can yield large perovskite grains, reduced defect densities, and improved charge transport and phase stability for the perovskite film, and enhanced power conversion efficiency (PCE) and stability for PSCs. Using this strategy, a champion FA0.85MA0.15PbI3 perovskite cell achieves a high PCE of 21.6% as well as significantly improved air and light stabilities. This work demonstrates that TPFPB is a promising material for crystallization control and defect passivation and paves a new path for mitigating defects and further increasing the performance of planar PSCs.
AB - In planar perovskite solar cells (PSCs), defect-induced recombination at the interface between the perovskite and hole transport layer (HTL) leads to a large potential loss and performance deterioration. Therefore, an effective method for improving interfacial properties is critical to boost the performance and stability of PSCs. Herein, a novel surface engineering technology is reported for passivating the perovskite surface with the polyfluoro organic compound tris(pentafluorophenyl)boron (TPFPB), which can yield large perovskite grains, reduced defect densities, and improved charge transport and phase stability for the perovskite film, and enhanced power conversion efficiency (PCE) and stability for PSCs. Using this strategy, a champion FA0.85MA0.15PbI3 perovskite cell achieves a high PCE of 21.6% as well as significantly improved air and light stabilities. This work demonstrates that TPFPB is a promising material for crystallization control and defect passivation and paves a new path for mitigating defects and further increasing the performance of planar PSCs.
UR - https://onlinelibrary.wiley.com/doi/10.1002/solr.201900072
UR - http://www.scopus.com/inward/record.url?scp=85081236314&partnerID=8YFLogxK
U2 - 10.1002/solr.201900072
DO - 10.1002/solr.201900072
M3 - Article
SN - 2367-198X
VL - 3
JO - Solar RRL
JF - Solar RRL
IS - 7
ER -