| 报告题目 | On the Tuning of Electrical and Thermal Transports in Thermoelectrics |
| 报告人 | Prof. ZHANG Wenqing (张文清) |
| 报告人单位 | 上海大学 |
| 报告时间 | 2016-10-24 |
| 报告地点 | 合肥微尺度物质科学国家实验室九楼会议室（9004） |
| 主办单位 | 合肥微尺度物质科学国家实验室、国际功能材料量子设计中心（ICQD） |
| 报告介绍 | 报告摘要：
There is huge effort in searching for high-performance thermoelectric (TE) materials in recent years. For that, understanding the thermal and electrical transports in complex materials is the key scientific issues to be pursued. This talk will try to summarize our efforts in understanding thermoelectric transports in compound materials with different level of structural complexity. The complexity gives rise to many opportunities for new findings. For examples, in the materials with chemical-bond hierarchy, in which certain constituent species weakly bond to other part of the crystal, an unusual part-crystalline part-liquid state (or liquid-like) of materials exists and leads to certain exotic thermal transport and phonon scattering beyond the traditional phonon anharmonicity. I will also shortly discuss the pseudocubic approach that could be adopted to realize good electronic transport properties in thousands non-cubic chalcopyrites through the utilization of cubic-like degenerate electronic bands, via the coexistence of a long-range cubic framework with short-range non-cubic lattice distortions. Some other efforts in tuning the electrical/thermal transports will also be briefly discussed.
报告人简介： |
