Topic：Thermoelectrics by design: metavalentbonding and structural defects

Lecturer：Prof.Yu Yuan

Affiliation：Unit of Rapporteur: Aachen University of Technology, Germany

Time：December 24, 2025 (Wednesday) at 10:00 AM

Venue：Central Hall, 4th Floor, Hongyi Building

Report Abstract：

            Thermoelectric materials can be used in green energy conversion fields such as waste heat generation and solid staterefigeration. The thermoelectric properties of a material are determined by chemical bonds and microstructure. This report presentsthermoelectric materials design options from the perspective of chemical bond and cystal defects, with a focus on metavalentbonding and how three -dimensional atomic probe (APT) technology can be used to identify chemical bonding and crystal defectand quantify their effects on electron-acoustic transport.