Abstract

Doping of thermoelectric materials with various additives is a promising approach for increasing the functional efficiency of thermoelectric materials of different classes. This paper presents preliminary results of studying the impact of the strontium borate dopant Sr(BO₂)₂ on the power factor (PF) of the oxide thermoelectric Bi₂Sr₂Co_1.8O_y. Samples with the nominal composition Bi₂Sr_2–x[Sr(BO₂)₂]_xCo_1.8O_y, x = 0–0.15, were prepared by the solid-phase reaction method. The temperature dependences of the resistivity and Seebeck coefficient were measured, and the power factor of the synthesized materials was calculated. The results obtained show that doping with strontium borate enhances the power factor of Bi₂Sr₂Co_1.8O_y thermoelectric.

中文翻译：

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Sr(BO2)2掺杂对Bi2Sr2Co1.8Oy热电功率因数的影响

摘要

用各种添加剂掺杂热电材料是提高不同类别热电材料功能效率的一种很有前景的方法。本文介绍了研究硼酸锶掺杂剂 Sr(BO ₂ ) ₂对氧化物热电 Bi ₂ Sr ₂ Co _1.8 O _y的功率因数 ( PF )影响的初步结果。标称成分 Bi ₂ Sr _{2– x} [Sr(BO ₂ ) ₂ ] _x Co _1.8 O _y , x 的样品= 0-0.15，由固相反应法制备。测量电阻率和塞贝克系数的温度依赖性，并计算合成材料的功率因数。结果表明，掺杂硼酸锶提高了Bi ₂ Sr ₂ Co _1.8 O _y热电材料的功率因数。