Performance boost for bismuth telluride thermoelectric generator via barrier layer based on low Young’s modulus and particle sliding

The lack of desirable diffusion barrier layers currently prohibits the long-term stable service of bismuth telluride thermoelectric devices in low-grade waste heat recovery. Here we propose a new design principle of barrier layers beyond the thermal expansion matching criterion. A titanium barrier l...

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Bibliographic Details
Published in:	Nature communications 2023-12, Vol.14 (1), p.8085-9, Article 8085
Main Authors:	Sun, Yuxin, Guo, Fengkai, Feng, Yan, Li, Chun, Zou, Yongchun, Cheng, Jinxuan, Dong, Xingyan, Wu, Hao, Zhang, Qian, Liu, Weishu, Liu, Zihang, Cai, Wei, Ren, Zhifeng, Sui, Jiehe
Format:	Article
Language:	English
Subjects:	639/301/299/2736 639/4077/4107 Barrier layers Bismuth Bismuth tellurides Contact resistance Contact stresses Diffusion barriers Diffusion layers Electrical resistivity Heat recovery Heat recovery systems High strength Humanities and Social Sciences Interfacial stresses Intermetallic compounds Mechanical properties Modules Modulus of elasticity multidisciplinary Science Science (multidisciplinary) Sliding Thermal expansion Thermal stability Thermoelectric generators Thermoelectric materials Thermoelectricity Titanium Waste heat Waste heat recovery Waste recovery
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