(Invited) Photoelectrode Design for Photoelectrocatalytic Hydrogen Production

Semiconductor nanomaterials hold the keys for efficient solar energy harvesting and conversion processes like photocatalysis and photoelectrochemical reactions. In this talk, we will give a brief overview of our recent progress in designing semiconductor nanomaterials for photoelectrochemical energy conversion including 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 separation and transfer and surface reaction engineering of low-cost metal oxide based semiconductors including TiO 2 , BiVO 4 as efficient photoelectrode for photoelectrochemical hydrogen production; 2). The design of ultra-stable composites of perovskite-MOF with improved light emitting and photocatalytic performance. 1-5 The resultant material systems exhibited efficient photocatalytic performance and improved power conversion efficiency in solar cells, which underpin sustainable development of solar-energy conversion application. References ： 1. Adv. Mater., 2018, doi:10.1002/adma.201705666. 2. Angew. Chem, 2019, doi/10.1002/anie.201810583 3. Nature Commun, 2020, (2020) 11:2129 4. Science, 2021, 374, 621. 5. Adv. Mater., 2022, 34 (10), 2106776.