Work

Recent Progress of Metal Halide Perovskite‐Based S‐Scheme Heterojunction for Solar Energy Conversion

Year: 2026

Type: article

Abstract: Semiconductor photocatalysis provides a sustainable route for solar-to-fuel conversion to mitigate global energy and environmental crises. Metal halide perovskites (MHPs) have emerged as promising photocatalysts due to their low cost, tunable compositions and band structures, excellent photoelectric properties, and scalable preparation. Nevertheless, rapid bulk charge recombination and narrow light absorption range severely restrict their photocatalytic efficiency. Fabricating S-scheme heterojunctions has become an advanced modification strategy to accelerate charge separation and transfer while maintaining high redox potentials. This review systematically elucidates the crystal and physicochemical properties of MHPs, the evolution of S-scheme heterojunctions, and the advantages of MHPs-based S-scheme photocatalysts. The synthesis strategies, underlying mechanisms, and advanced characterization techniques for tracking charge behavior in such heterojunctions are summarized. Additionally, recent advances in MHP-based S-scheme photocatalysts are reviewed across hydrogen evolution, CO2 photoreduction, pollutant remediation, and H2O2 photosynthesis. Finally, the current challenges and future perspectives of these composite photocatalytic systems are proposed

Source: Energy & environment materials

DOI: 10.1002/eem2.70508

Authors: Xinhe Wu, Shujie Yin, Jiachao Xu, Lihong Tan, Guohong Wang

Institution: Hubei Normal University

Language: English

Topic: Advanced Photocatalysis Techniques

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $3,000