Publication date: 21st July 2025
Solar-driven water evaporation is a promising strategy for sustainable freshwater production, especially in regions facing water scarcity. Various photothermal materials (PTMs), such as plasmonic nanoparticles, graphene-based materials, and metal oxides [1], have been investigated for this purpose. However, many of these materials suffer from low solar absorption or limited photothermal conversion efficiency, reducing their practical impact. Metal halide perovskites (MHPs) have recently attracted attention due to their strong light absorption, tunable bandgaps, and structural versatility. While extensively explored in photovoltaics and optoelectronics, their application in solar evaporation remains relatively underdeveloped. A key challenge is achieving broader solar absorption while maintaining material stability and reducing toxicity. Conventional lead- or tin-based perovskites pose environmental concerns and offer limited performance improvements. This proposed research aims to explore low-toxicity, water-stable halide perovskites as next-generation PTMs. These materials show significant promise for enhancing solar-to-heat conversion and could open new avenues for efficient and eco-friendly water purification system.
This project has received funding from the European Union's Horizon Europe research and innovation programme under the Marie Skłodowska-Curie grant agreement No: 101208851- PHOTEM.
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