Issue 39, 2023

Holmium rare earth metal ion incorporated and ambient-air processed all-inorganic γ-CsPbI2.5Br0.5 perovskite solar cells yielding high efficiency and stable performance

Abstract

Cesium lead halide-based all inorganic perovskite solar cells (IPVSCs) are considered promising absorbers for photovoltaic applications owing to their exceptional thermal stability and suitability towards single, monolithic tandem and triple junction perovskite/perovskite tandem solar cells. However, their device performance and phase stability lag behind those of conventional organic–inorganic hybrid perovskite solar cells (HPVSCs). Here, we successfully incorporated different quantities of holmium (Ho3+) rare earth (RE) metal ions into the γ-CsPbI2.5Br0.5 perovskite. A noticeable improvement in power conversion efficiency (PCE) from 17.19% (γ-CsPbI2.5Br0.5) to 19.59% was attained for the 3% HoCl3-based IPVSC device. Furthermore, our ambient-air processed 3% HoCl3-based device maintains >95% efficiency over 140 h at 30% relative humidity. This investigation shows that the RE metal ion incorporation is an effective approach for stabilizing and improving the device efficiency simultaneously.

Graphical abstract: Holmium rare earth metal ion incorporated and ambient-air processed all-inorganic γ-CsPbI2.5Br0.5 perovskite solar cells yielding high efficiency and stable performance

  • This article is part of the themed collection: #MyFirstJMCA

Supplementary files

Article information

Article type
Paper
Submitted
23 Maijs 2023
Accepted
09 Sept. 2023
First published
11 Sept. 2023

J. Mater. Chem. A, 2023,11, 21312-21321

Holmium rare earth metal ion incorporated and ambient-air processed all-inorganic γ-CsPbI2.5Br0.5 perovskite solar cells yielding high efficiency and stable performance

J. V. Patil, S. S. Mali and C. K. Hong, J. Mater. Chem. A, 2023, 11, 21312 DOI: 10.1039/D3TA03042C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements