报告题目：Searching new materials for efficient solar driven hydrogen production

报 告 人：鄢炎发 讲席教授（Department of Physics and Astronomy, The University of Toledo）

报告时间：5月20日（周五）上午9：00

报告地点：新物理楼多功能厅

报告摘要：Using sunlight and semiconductors to split water in a photoelectrochemical (PEC) process to generate hydrogen provides a viable way to produce renewable fuel. So far, the efficient PEC devices are exclusively based on epitaxial grown III-V semiconductors. However, these semiconductors are expensive to make, limiting their practical application for large scale PEC hydrogen production. PEC devices based on polycrystalline thin films can potentially lead to low-cost production of hydrogen by PEC. However, most PEC devices made of polycrystalline thin films have not achieved high efficiency yet. Searching for new semiconductors that can potentially lead to efficient PEC devices is still necessary. In this talk, we will present general strategies for searching for such kind of semiconductors. We will show by density-functional theory that some new chalcogenides and oxides are promising candidates for efficient PEC applications. We will also present our latest results on experimental assessments on these new PEC materials.

邀请人：王建波教授