基于相变材料的半导体热电发电器性能优化研究

高德扬, 蒋中一, 张锴, 孟境辉

Research on Performance Optimization of Semiconductor Thermoelectric Generaor Based on Phase Change Material

Deyang GAO, Zhongyi JIANG, Kai ZHANG, Jinghui MENG

表1 热电材料物性参数

Tab. 1 Physical parameters of thermoelectric materials

材料

塞贝克系数S/(V⋅K^-1)

密度ρ/(kg⋅m^-3)

电导率σ/(S⋅m^-1)

定压比热容C_p /(kJ⋅kg^-1⋅K^-1)

导热系数k/(W⋅m^-1⋅K^-1)

—

8 960

—

0.385

400

Al₂O₃

—

2 329

—

0.700

130

Bi方正汇总行₂Te₃

(22 224＋930.6T－0.990 5T²)×10^-9

7 700

1/(5 112＋163.4T＋0.627 9T²)×10^-10

0.154

(6 260－5 277.7T＋

0.413 1T²)×10^-4