Rethinking the role of excess/residual lead iodide in perovskite solar cells

Y Gao, H Raza, Z Zhang, W Chen… - Advanced Functional …, 2023 - Wiley Online Library
It is widely believed that excess/residual lead iodide (PbI2) can affect the performance of
perovskite solar cells. Moderate PbI2 can enhance efficiency by passivating defects, while …

In Situ and Operando Characterizations of Metal Halide Perovskite and Solar Cells: Insights from Lab-Sized Devices to Upscaling Processes

R Szostak, A de Souza Gonçalves… - Chemical …, 2023 - ACS Publications
The performance and stability of metal halide perovskite solar cells strongly depend on
precursor materials and deposition methods adopted during the perovskite layer …

Degradation mechanisms of perovskite solar cells under vacuum and one atmosphere of nitrogen

R Guo, D Han, W Chen, L Dai, K Ji, Q Xiong, S Li… - Nature Energy, 2021 - nature.com
Extensive studies have focused on improving the operational stability of perovskite solar
cells, but few have surveyed the fundamental degradation mechanisms. One aspect …

Temperature-Dependent Optical Band Gap in CsPbBr3, MAPbBr3, and FAPbBr3 Single Crystals

G Mannino, I Deretzis, E Smecca… - The journal of …, 2020 - ACS Publications
Single crystals represent a benchmark for understanding the bulk properties of halide
perovskites. We have indeed studied the dielectric function of lead bromide perovskite …

Two-dimensional Dion-Jacobson halide perovskites as new-generation light absorbers for perovskite solar cells

H Xiang, P Liu, R Ran, W Wang, W Zhou… - … and Sustainable Energy …, 2022 - Elsevier
Abstract Three-dimensional (3D) organic-inorganic halide perovskites have been regarded
as promising sunlight harvesters for perovskite solar cells (PSCs). However, the intrinsic …

I 2 vapor-induced degradation of formamidinium lead iodide based perovskite solar cells under heat–light soaking conditions

F Fu, S Pisoni, Q Jeangros, J Sastre-Pellicer… - Energy & …, 2019 - pubs.rsc.org
Over the last years, the operational stability of perovskite solar cells has been significantly
improved by compositional engineering, interface modification, and improved encapsulation …

Degradation and self-repairing in perovskite light-emitting diodes

P Teng, S Reichert, W Xu, SC Yang, F Fu, Y Zou, C Yin… - Matter, 2021 - cell.com
One of the most critical challenges in perovskite light-emitting diodes (PeLEDs) lies in poor
operational stability. Although field-dependent ion migration is believed to play an important …

Universal approach toward high-efficiency two-dimensional perovskite solar cells via a vertical-rotation process

Y Yang, C Liu, A Mahata, M Li… - Energy & …, 2020 - pubs.rsc.org
The emerging 2D perovskites exhibit superior stability and similar optoelectronic attributes
compared to the 3D analogues, but their strong exciton-binding energy and inferior …

Pb clustering and PbI2 nanofragmentation during methylammonium lead iodide perovskite degradation

A Alberti, C Bongiorno, E Smecca, I Deretzis… - Nature …, 2019 - nature.com
Studying defect formation and evolution in MethylAmmonium lead Iodide (MAPbI3)
perovskite layers has a bottleneck in the softness of the matter and in its consequent …

Emerging conductive atomic force microscopy for metal halide perovskite materials and solar cells

H Si, S Zhang, S Ma, Z Xiong, A Kausar… - Advanced Energy …, 2020 - Wiley Online Library
Metal halide perovskite materials, benefiting from a combination of outstanding
optoelectronic properties and low‐cost solution‐preparation processes, show tremendous …