云南师范大学学报（自然科学版）2026，Vol.46Issue(3)：25-28,4.DOI:10.7699/j.ynnu.ns-2026-31
高性能β-Zn4Sb3基热电材料的制备及其电输运特性研究
Study on Preparation and Electrical Transport Properties of High-performance β-Zn4Sb3-based Thermoelectric Materials
摘要
Abstract
Using BaCl2 as a flux agent,β-Zn4Sb3-based thermoelectric materials were synthesized by the flux method.The effects of different BaCl2 amounts(Zn4Sb3∶BaCl2=1∶x,with stoichiometric ratios x=1.5,2.0,2.5,3.0,3.5,4.0)on the structure and properties of the materials were investigated.XRD,XPS,and electro-thermal transport measurements revealed that the flux method improved the crystalline quality of β-Zn4Sb3 and effectively suppressed the formation of Zn vacancies and secondary phases during crystal growth.The in-troduction of Ba induced a slight lattice contraction and charge redistribution,promoting electron transfer from Zn to Sb,thereby increasing the carrier concentration in the material.The sample with x=3.5 achieved a pow-er factor of 1.58 mW·m-1·K-2 at 500 K.关键词
热电材料/β-Zn4Sb3/BaCl2助熔剂法/热电性能Key words
β-Zn4Sb3/Thermoelectric properties/BaCl2flux method/Thermoelectric materials分类
通用工业技术引用本文复制引用
邓池升,李吉成,王正厅,肖肖,高睿,葛文,邓书康..高性能β-Zn4Sb3基热电材料的制备及其电输运特性研究[J].云南师范大学学报（自然科学版）,2026,46(3):25-28,4.基金项目
国家自然科学基金资助项目(62464013). （62464013）
