• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Nanoscale thermoelectric materials: Thermal and electrical transport, and applications to solid-state cooling and power generation >Detailed Theoretical Investigation and Comparison of the Thermal Conductivities of n- and p-type Bi_2Te_3 Based Alloys
【24h】

Detailed Theoretical Investigation and Comparison of the Thermal Conductivities of n- and p-type Bi_2Te_3 Based Alloys

机译：n型和p型Bi_2Te_3基合金导热系数的详细理论研究和比较

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this work we present a detailed theoretical investigation of the thermal conductivities of n-type 0.1 wt.% CuBr doped 85% Bi_2Te_3 - 15% Bi_2Se_3 and p-type 3 wt% Te doped 20% Bi_2Te_3 - %80 Sb_2Te_3 single crystals. The thermal conductivity contributions arising from carriers, electron-hole pairs and phonons are computed rigorously in the temperature range 300 K ≤ T ≤ 500 K. In agreement with available experimental measurements we theoretically find that the lowest total thermal conductivity is 3.15 W K~(-1) m~(-1) at 380 K for the n-type alloy and 1.145 W K~(-1) m~(-1) at 400 K for the p-type alloy. Stronger mass-defect scattering is found to be responsible for the lower thermal conductivity of the p-type alloy throughout the temperature range of the study.
机译：在这项工作中，我们提供了对n型0.1 wt。％CuBr掺杂的85％Bi_2Te_3-15％Bi_2Se_3和p型3 wt％Te掺杂的20％Bi_2Te_3-％80 Sb_2Te_3单晶的导热率的详细理论研究。在300 K≤T≤500 K的温度范围内，严格计算了由载流子，电子-空穴对和声子引起的热导率贡献。与可用的实验测量结果相符，我们从理论上发现，最低的总热导率为3.15 WK〜（- 1）n型合金在380 K下的m〜（-1）和p型合金在400 K下的1.145 WK〜（-1）m〜（-1）。发现在整个研究温度范围内，较强的质量缺陷散射是p型合金导热系数较低的原因。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号