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High-performance thermoelectrics and challenges for practical devices
Nature Materials, 2021Thermoelectric materials can be potentially employed in solid-state devices that harvest waste heat and convert it to electrical power, thereby improving the efficiency of fuel utilization. The spectacular increases in the efficiencies of these materials achieved over the past decade have raised expectations regarding the use of thermoelectric ...
Qingyu Yan, Mercouri G. Kanatzidis
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Efficiency of Thermoelectric Devices
American Journal of Physics, 1961The known expressions for various efficiencies of thermoelectric energy converters can be so modified that the Carnot efficiency ηc of the ideal heat engine cycle appears as one of two significant parameters. The other parameter ZT (Z = figure of merit, T = hot spot temperature in °K) is a significant characteristic of the thermoelectric material used
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Simulation of thermoelectric devices
2007Thermoelectric Generators are devices for direct conversion of heat into electricity.Their outstanding reliability due to the lack of moving parts makes them attractive candidates for a series of applications. However, today’s thermoelectric devices are limited by their low efficiency and high costs.
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Thermoelectric Materials and Devices
2014A thermoelectric device is a solid-state device that can directly convert heat into electricity and vice versa. In this chapter, we present a comprehensive review on the recent advances in thermoelectric materials and devices with an emphasis on the new physical approaches for performance enhancement.
Chanyoung Kang +4 more
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Efficient thermoelectric cooling for mobile devices
2017 IEEE/ACM International Symposium on Low Power Electronics and Design (ISLPED), 2017Mobile apps suffer large performance degradation when the underlying processors are throttled to cool down the devices. Fans or heat sinks are not a viable option for mobile devices, thus calling for a new portable cooling solution. Thermoelectric coolers are scalable and controllable cooling devices that can be embedded into mobile devices on the chip
Youngmoon Lee, Eugene Kim, Kang G. Shin
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Quantum Well Thermoelectric Devices
MRS Proceedings, 2003ABSTRACTThis paper discloses the recent developments of high efficiency quantum well thermoelectrics at Hi-Z Technology, Inc. The performance of the latest P type B4C/B9C- N-type Si/SiGe couple will be presented as well as data for the new N-type Si/SiC that will replace Si/SiGe and improve couple efficiency.Preliminary calculations regarding the ...
S. Ghamaty, N. B. Elsner
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Silicon nanowires thermoelectric devices
2010 Conference Proceedings IPEC, 2010Thermoelectric units have been promising candidates at micro processor cooling and even at power generation at a micro-watt level. In fact thermoelectric energy converters can directly convert even low-grade heat gradients to electricity. However it has been a challenging task to scale down conventional thermoelectric materials as most of them are not ...
Y. Li +4 more
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Wearable Thermoelectric Devices
2019Wearable thermoelectric devices can be used to harvest electrical energy from human body heat for the realization of wearable self-powered mobile electronics. They require high mechanical and electrical stabilities under cyclic loading. Research trends in wearable thermoelectric devices were investigated from the perspectives of materials, devices, and
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Principles of thermoelectric devices
British Journal of Applied Physics, 1960In recent years, the use of semiconductor thermojunctions has improved the efficiency of generation by means of the Seebeck effect and has made thermoelectric refrigeration a practical possibility. By using semiconducting compounds of high mean atomic weight, Seebeck coefficients of about 200 μV/° C have been obtained without the ratio of electrical to
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A thermoelectric device (1) comprising a frame (2), a membrane (3) made of thermoelectric material, and an element (4) for absorbing or releasing energy. The element (4) is supported to the frame (2) solely by the membrane (3).Patent family as of 10.12.2021EP3427027 A1 20190116 EP20170711248 20170303 US10811585 BB 20201020 US20170082610 20170303
Prunnila, Mika +4 more
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Prunnila, Mika +4 more
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