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Lead-Free Perovskite and Perovskite-Inspired Materials for Indoor Photovoltaics: A Perspective

  • EQ Han 1,   
  • Jung Ho Yun 1,*,   
  • Miaoqiang Lyu 2,*

Received: 10 Oct 2025 | Revised: 27 Dec 2025 | Accepted: 07 Jan 2026 | Published: 22 Jan 2026

Abstract

The past few years have witnessed increasing research interest in lead-free perovskites for indoor photovoltaics. Lead-free perovskites along with many reported perovskite halide analogue compounds take advantage of the solution-processibility, low-toxicity and high-theoretical efficiencies under weak indoor light conditions. Therefore, these semiconductors show promising potential as the next-generation indoor photovoltaics for integration with low-power wearables and internet-of-things electronics. In this perspective, we discuss the overview of the current research progress of lead-free perovskites for IPVs and highlight the challenges in this field as well as the speculative directions for further development.

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DOI
10.53941/matsus.2026.100001
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Volume 2, Issue 1
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Han, E.; Yun, J. H.; Lyu, M. Lead-Free Perovskite and Perovskite-Inspired Materials for Indoor Photovoltaics: A Perspective. Materials and Sustainability 2026, 2 (1), 1. https://doi.org/10.53941/matsus.2026.100001.
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