Abstract:Semiconductor nanomaterials hold the keys for efficient solar energy harvesting and conversion processes like photocatalysisand photoelectrochemical reactions.In this talk,we will give a brief overview of our recent progress in designing semiconductornanomaterials for photoelectrochemical energy conversionincluding solar hydrogen generation and low-cost solar cells.In more details,we have been focusing on a few aspects;1)photocatalysis mechanism,light harvesting,charge transfer and surface reactionengineering of low-cost metal oxide-based semiconductors including TiO₂,BiVO₄as efficient photoelectrode for photoelectrochemical hydrogen production;2)the working mechanism and stability improvement of perovskite quantum dots and lead-free tin-based perovskite solar cells;3).The design of ultra-stable composites of perovskite-MOF with improved light emitting performance,photocatalysits.^1-9The resultant material systems exhibited efficient photocatalytic performanceand improved power conversion efficiency in solar cells,which underpin sustainable development of solar-energy conversion application.

References：

[1]Angew. Chem, 2019, doi/10.1002/anie.201810583

[2]Nature Energy, 2020, 5, 79-88.

[3]Nature Commun, 2020,https://doi.org/10.1038/s41467-020-15993-4.

[4]Science, 2021, 374, 621.

[5]Adv. Mater., 2022,34 (10), 2106776.

[6]Nature Commun, 2023, articles/s41467-023-35830-8

[7]Nature Commun, 2024, articles/s41467-024-53426-8

[8]J. Am. Soc. Soc, 2025, 147, 3195.

[9]Nature Nanotech, 2025, in press.

Lianzhou Wang FAA FTSE is professor and Australian Research Council (ARC) Australian Laureate Fellow in the School of Chemical Engineering,Director of Nanomaterials Centre, and Senior Group Leader of AIBN, at The University of Queensland (UQ), Australia. Hisresearch focuses on the design and application of semiconductor nanomaterials for renewable energy conversion and storage including photocatalysts for solar fuel production, low-cost solar cells and rechargeable batteries. He has published > 600 articles in high quality journals including Science, Nature Energy, Nature Nanotech, and others, and filed >20 patents, receiving >60,000 citations with a H-index of 130. Hewon some prestigious honours/awards including ARC QEII Fellowship (2006), Future Fellowship (2012), Laureate Fellowship (2019) and Industry Laureate Fellowship (2024), Scopus Young Researcher Award, and Research Excellence Award in Chemical Engineering of IChemE. He is elected fellow of the Australian Academy of Science (FAA), Australian Academy of Technological Sciences and Engineering (FTSE), and Academia Europaea (MAE), and is named on the Clarivate’ Highly Cited Researchers list.