纳米热电能源转换材料的制备与性能优化研究
Preparation and Performance Optimization of Nanoscale Thermoelectric Energy Conversion Materials
DOI: 10.12677/MS.2022.126067, PDF,    国家自然科学基金支持
作者: 华 瑶, 陈 哲*, 宦鹤波, 邹 沛, 徐国栋, 何雪龙, 何翠群：南昌工程学院，江西 南昌；江西省精密驱动与控制重点实验室，江西 南昌；张俊红, 周 憬, 曾申涛：南昌工程学院，江西 南昌
关键词: Bi2Te3；热电材料；掺杂；性能优化；Bi2Te3； Thermoelectric Material； Doping； Performance Optimization
摘要: 热电材料是一种直接将热能和电能进行相互转换的新能源材料，具有可靠性高、无传动部件、无噪音、无污染等优点，在废热(余热)发电、太阳能热源发电、极端环境下的能源供给等方面有广阔的应用前景。Bi2Te3 (碲化铋)系热电材料是目前较为广泛应用的热电能源转换材料，针对如何进一步提高碲化铋基材料热电转换效率的问题，本文从提高功率因子、增强载流子的输运性能等角度，讨论采用元素掺杂的方法来优化碲化铋基材料的载流子浓度、降低热导率及提高热电传输性能，并通过优化制备工艺来进一步提高Bi2Te3系热电性能及拓展应用前景。
Abstract: Thermoelectric material is a kind of new energy material which directly converts heat energy to electric energy. It has the advantages of small size, high reliability, no transmission parts, no noise, no pollution and so on. It has broad application prospect in waste heat power generation, solar power generation, energy supply in extreme environment and so on. In view of how to further improve the thermoelectric value of Bi2Te3 materials, the method of element doping is discussed to optimize the carrier concentration, reduce the thermal conductivity and improve the electrical transmission performance of Bi2Te3 materials from the perspective of improving the power factor and enhancing phonon scattering. Finally, the possible challenges and problems needing attention in further improving the thermoelectric performance of Bi2Te3 by doping process are presented.
文章引用：华瑶, 陈哲, 宦鹤波, 邹沛, 徐国栋, 何雪龙, 何翠群, 张俊红, 周憬, 曾申涛. 纳米热电能源转换材料的制备与性能优化研究[J]. 材料科学, 2022, 12(6): 615-623. https://doi.org/10.12677/MS.2022.126067

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