Issue 51, 2022

Strategies for the preparation of high-performance inorganic mixed-halide perovskite solar cells

Abstract

Inorganic halide perovskites have attracted significant attention in the field of photovoltaics (PV) in recent years due to their superior intrinsic thermal stability and excellent theoretical power conversion efficiency (PCE). CsPbI3 with a bandgap of ∼1.7 eV is considered to be the most potential candidate for PV application. However, bulk CsPbI3 films exhibit poor phase stability. The substitution of some iodide ions with bromide/chloride in CsPbI3 results in the formation of mixed-halide CsPbX3 perovskites, which exhibit a good balance between phase stability and efficiency. The halogen-tunable mixed-halide inorganic perovskites have a bandgap matching the sunlight region and show great potential for application in multi-junction tandem and semitransparent solar cells. Herein, the progress of mixed-halide CsPbX3 PSCs is systematically reviewed, including CsPbIxBryCl3−xy- and CsPbIBr2-based IPSCs. In the case of CsPbIBr2 IPSCs, we introduce the low-temperature deposition of CsPbIBr2 films, doping methods for the preparation of high-quality CsPbIBr2 films and strategies for improving the performance of solar cells. Furthermore, the mechanism of crystallization/interface engineering for the preparation of high-quality CsPbIBr2 films and efficient solar cells devices is emphasized. Finally, the development direction of further improving the PV performance and commercialization of mixed-halide IPSCs are summarized and prospected.

Graphical abstract: Strategies for the preparation of high-performance inorganic mixed-halide perovskite solar cells

Article information

Article type
Review Article
Submitted
03 sen 2022
Accepted
03 noy 2022
First published
16 noy 2022
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2022,12, 32925-32948

Strategies for the preparation of high-performance inorganic mixed-halide perovskite solar cells

X. Liu, J. Li, X. Cui, X. Wang and D. Yang, RSC Adv., 2022, 12, 32925 DOI: 10.1039/D2RA05535J

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