Results 201 to 210 of about 34,176 (253)
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Thin-film thermoelectric cooling
Technical Physics, 2009Basic physical features of thermoelectric cooling in p-n structures of a submicrometer thickness, which is manifested even in the linear approximation in current, are investigated. It is shown that a multitem-perature model in which each subsystem of quasi-particles is characterized by its own temperature is effective for studying such structures.
I. M. Lashkevich +2 more
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Physics of thermoelectric cooling
Semiconductor Science and Technology, 2005A new approach is suggested to explain the Peltier effect. It assumes that the Peltier effect is not an isothermal effect. The approach is based on the occurrences of induced thermal fluxes in a structure which consists of two conducting media, through which a dc electric current flows. These induced thermal diffusion fluxes arise to compensate for the
Yu G Gurevich, G N Logvinov
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Thrifty thermoelectric cooling
Science, 2019Thermoelectrics Currently available thermoelectric devices for cooling rely on expensive bismuth telluride. Mao et al. systematically developed a far less expensive n-type magnesium-bismuth–based material with good thermoelectric properties. They built a device that could generate a temperature difference of up to 90 kelvin when coupled with a ...
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Thermoelectric Cooling and Power Generation
Science, 1999In a typical thermoelectric device, a junction is formed from two different conducting materials, one containing positive charge carriers (holes) and the other negative charge carriers (electrons). When an electric current is passed in the appropriate direction through the junction, both types of charge carriers move away from the junction and convey ...
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A Study on Cooling Characteristics of Thermoelectric Cooling System Using Thermoelectric Materials
Advanced Materials Research, 2011This study investigated on cooling characteristics of thermoelectric cooling system using thermoelectric materials as Bi-Te alloy. The thermoelectric module used as thermoelectric materials of thermoelectric cooling system can achieve heating and cooling by change of electricity direction. When thermoelectric module and cooling fan received 12V from DC
Ho Dong Yang +2 more
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Thermoelectric Cooling Through Thermoelectric Materials
2010Thermoelectric (TE) cooling has been used for thermal management of high-power-dissipating electrical components, with silent, compact, reliable, and durable characteristics and being modulated to maintain a fixed temperature. However, TE coolers currently in use have a coefficient of performance (COP) of only about 0.5.
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Enhanced thermoelectric cooling performance with graded thermoelectric materials
Japanese Journal of Applied Physics, 2018An analytic model is presented to estimate the performance of the thermoelectric refrigeration constructed by the functional graded thermoelectric materials with the spatial- and temperature-dependent transport coefficients, such as the Seebeck coefficient, the thermal conductivity and the electrical conductivity along the transport direction.
Ji-Zhu Hu +4 more
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Thermoelectrically Cooled, Repetitively Pulsed Fe:ZnSe Laser
Труды РФЯЦ-ВНИИЭФ, 2019Abstract We report the investigation of a repetitively pulsed laser based on a Fe : ZnSe crystal, cooled to a temperature of 195 K by two thermoelectric modules with a maximum cooling power of 34 W. Two pulsed synchronised Er : YAG lasers, operating in the free-lasing regime, are used for pumping. It is shown that the average laser power
N.G. Zakharov +7 more
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Cooling power of transverse thermoelectrics for cryogenic cooling
SPIE Proceedings, 2016Transverse Peltier coolers have been experimentally and theoretically studied since 1960s due to their capability of achieving cooling in a single-leg geometry. Recently proposed p x n -type transverse thermoelectrics reveal the possibility of intrinsic or undoped transverse coolers that can, in principle, function at cryogenic temperatures, which has
Yang Tang, Ming Ma, M. Grayson
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Minority Carrier Thermoelectric Cooling
Journal of Applied Physics, 1963The fallacy in a recently proposed theory of minority carrier cooling is pointed out. The correct approach is given and the current literature on the subject is summarized. It is emphasized that cooling devices utilizing minority carrier effects are normally less efficient than conventional thermocouple modules.
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