Issue 40, 2021

Compositional engineering solutions for decreasing trap state density and improving thermal stability in perovskite solar cells

Abstract

Perovskite solar cells need a long-term thermal stability and high efficiencies for commercial viability. Unfortunately, perovskites tend to have more defects making them vulnerable to thermal decomposition. Previous research studies have explored different strategies such as surface passivation, interfacial modification, post-treatments of perovskite films with Lewis bases and acids, and photo-curing to address the challenges due to thermal instability; however, these techniques face obstacles such as the rapid phase segregation of IBr based perovskites, poor light and moisture stability, and low efficiency of devices. This review, therefore, discusses the technique of compositional engineering to suppress the defect states to improve the thermal stability of the device.

Graphical abstract: Compositional engineering solutions for decreasing trap state density and improving thermal stability in perovskite solar cells

Associated articles

Article information

Article type
Review Article
Submitted
19 Cax 2021
Accepted
24 Leq 2021
First published
07 Way 2021

J. Mater. Chem. C, 2021,9, 14047-14064

Compositional engineering solutions for decreasing trap state density and improving thermal stability in perovskite solar cells

M. T. Mbumba, D. M. Malouangou, J. M. Tsiba, M. W. Akram, L. Bai, Y. Yang and M. Guli, J. Mater. Chem. C, 2021, 9, 14047 DOI: 10.1039/D1TC02315B

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