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DOI10.1039/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.
Date Issued2021
ISSN17545692
startpage995
endpage1003
Volume14Issue:2
Other AbstractGeTe-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.
enkeywordsConversion 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
Language英语
journalEnergy & Environmental Science
Document Type期刊论文
Identifierhttp://gcip.llas.ac.cn/handle/2XKMVOVA/190766
AffiliationState 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
Recommended Citation
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).
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