Development of high efficiency segmented thermoelectric unicouples
Development of high efficiency segmented thermoelectric unicouples
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DOI：
10.1109/ict.2001.979888
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发表时间：
2001-06
期刊：
影响因子：
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通讯作者：
T. Caillat;J. Fleurial;G. J. Snyder;A. Borshchevsky
中科院分区：
文献类型：
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作者：
T. Caillat;J. Fleurial;G. J. Snyder;A. Borshchevsky
目前，喷气推进实验室（JPL）正在开发高效的分段热电单偶，其中包含具有上级热电优值的先进热电材料。这些分段的单偶包括基于Bi/sub 2/Te/sub 3/和JPL开发的新型p型Zn/sub 4/Sb/sub 3/、p型CeFe/sub 4/Sb/sub 12/-基合金和n型CoSb/sub 3/-基合金的最先进热电材料的组合。当热端温度为975 K，冷端温度为300 K时，最大热电效率约为15%.已经探索了各种分割，并且已经制造和测试了几种单偶。本文介绍了这些单耦合测试的设置和一些测试结果的报告。已经为选定的单偶产生了I-V曲线。结果表明，实验热电效率值接近理论预测值已被测量。
Highly efficient, segmented thermoelectric unicouples incorporating advanced thermoelectric materials with superior thermoelectric figures of merit are currently being developed at the Jet Propulsion Laboratory (JPL). These segmented unicouples include a combination of state-of-the-art thermoelectric materials based on Bi/sub 2/Te/sub 3/ and novel p-type Zn/sub 4/Sb/sub 3/, p-type CeFe/sub 4/Sb/sub 12/-based alloys and n-type CoSb/sub 3/-based alloys developed at JPL. The maximum predicted thermal to electrical efficiency is about 15% for a hot-side temperature of 975K and a cold-side temperature of about 300K. Various segmentations have been explored and several unicouples have been fabricated and tested. The set-up for testing these unicouples is described in this paper and some of the tests results reported. I-V curves have been generated for selected unicouples. The results show that experimental thermal to electrical efficiency values close to theoretical predicted values have been measured.