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DOI	10.1039/d0ee02791j
	High efficiency GeTe-based materials and modules for thermoelectric power generation
	Xing T.; Song Q.; Qiu P.; Zhang Q.; Gu M.; Xia X.; Liao J.; Shi X.; Chen L.
发表日期	2021
ISSN	17545692
起始页码	995
结束页码	1003
卷号	14 期号:2
英文摘要	GeTe-Based materials have great potential to be used in thermoelectric generators for waste heat recovery due to their excellent thermoelectric performance, but their module research is greatly lagging behind material research. In this work, we successfully fabricate a GeTe-based thermoelectric module and report a high energy conversion efficiency of 7.8% under a temperature gradient of 500 K. An Sb-, Bi-, and Se-doped GeTe-based material, with a chemical composition of Ge0.92Sb0.04Bi0.04Te0.95Se0.05 and a peak ZT of 2.0 at 700 K, is used to make the p-type legs in the module. By using a high-throughput strategy, Mo is screened from 12 pure metals as an effective diffusion barrier material between the GeTe-based material and the electrode. Based on the optimal geometry predicted by three-dimensional numerical analysis, one eight-couple Ge0.92Sb0.04Bi0.04Te0.95Se0.05/Yb0.3Co4Sb12 TE module is fabricated and evaluated, which shows a comparable energy conversion efficiency with those of skutterudite- and half-Heusler-based modules in a similar temperature range. This study opens the door for the development of GeTe-based modules. © The Royal Society of Chemistry.
英文关键词	Conversion efficiency; Diffusion barriers; Germanium compounds; Thermoelectric equipment; Thermoelectricity; Waste heat; Waste heat utilization; Chemical compositions; Effective diffusion; High energy conversions; Material research; Thermo-electric modules; Thermoelectric generators; Thermoelectric performance; Three-dimensional numerical analysis; Thermoelectric energy conversion; chemical composition; detection method; drag coefficient; efficiency measurement; electrode; energy efficiency; performance assessment; power generation; temperature effect; temperature gradient
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190766
作者单位	State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China; School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Xing T.,Song Q.,Qiu P.,et al. High efficiency GeTe-based materials and modules for thermoelectric power generation[J],2021,14(2).
APA	Xing T..,Song Q..,Qiu P..,Zhang Q..,Gu M..,...&Chen L..(2021).High efficiency GeTe-based materials and modules for thermoelectric power generation.Energy & Environmental Science,14(2).
MLA	Xing T.,et al."High efficiency GeTe-based materials and modules for thermoelectric power generation".Energy & Environmental Science 14.2(2021).