气候变化领域集成服务门户(CCPortal): Innovative design of bismuth-telluride-based thermoelectric micro-generators with high output power

CCPortal

DOI	10.1039/d0ee02579h
	Innovative design of bismuth-telluride-based thermoelectric micro-generators with high output power
	El Oualid S.; Kosior F.; Dauscher A.; Candolfi C.; Span G.; Mehmedovic E.; Paris J.; Lenoir B.
发表日期	2020
ISSN	1754-5692
起始页码	3579
结束页码	3591
卷号	13 期号:10
英文摘要	The ever-increasing number of connected objects requires novel ways to power them and make them fully autonomous. In this context, photovoltaic, piezoelectric or thermoelectric energy-harvesting technologies show great promises as they make possible the conversion of solar radiation, motion or thermal energy into useful electricity for charging micro-batteries for instance. Thermoelectric micro-generators (µ-TEGs) exhibit several key benefits, making them prime candidates for harvesting any temperature difference between their two exchange surfaces. However, their output power critically depends on the design of the µ-TEG, the minimization of the detrimental influence of the contact resistances and on the coupling of the µ-TEG with the heat source and heat sink. Here, we theoretically and experimentally demonstrate how these inherent difficulties can be mitigated using an innovative flexible µ-TEG design based on bismuth telluride thin films. Our experimental results show that an output power of 5.5 µW per thermocouple can be generated under a temperature difference of only 5 K, in excellent agreement with predictions based on three-dimensional finite element analyses. These remarkable results rank our µ-TEG among the best micro-generators currently available. © The Royal Society of Chemistry.
语种	英语
scopus关键词	Bismuth compounds; Energy harvesting; Heat resistance; Thermocouples; Thermoelectric equipment; Bismuth telluride; Bismuth telluride thin films; Exchange surfaces; High output power; Temperature differences; Thermoelectric energy; Thermoelectric micro-generator; Three dimensional finite element analysis; Thermoelectric energy conversion
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162443
作者单位	Institut Jean Lamour, Umr 7198 CNRS-Université de Lorraine, 2 allée André Guinier-Campus ARTEM, Nancy Cedex, BP 50840 54011, France; Mahle Thermoelektronik GmbH, Duisburg, Germany
推荐引用方式 GB/T 7714	El Oualid S.,Kosior F.,Dauscher A.,et al. Innovative design of bismuth-telluride-based thermoelectric micro-generators with high output power[J],2020,13(10).
APA	El Oualid S..,Kosior F..,Dauscher A..,Candolfi C..,Span G..,...&Lenoir B..(2020).Innovative design of bismuth-telluride-based thermoelectric micro-generators with high output power.Energy and Environmental Science,13(10).
MLA	El Oualid S.,et al."Innovative design of bismuth-telluride-based thermoelectric micro-generators with high output power".Energy and Environmental Science 13.10(2020).