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dc.contributor.authorYen, Shun-Tungen_US
dc.contributor.authorLee, Kuan-Chenen_US
dc.date.accessioned2014-12-08T15:07:23Z-
dc.date.available2014-12-08T15:07:23Z-
dc.date.issued2010-03-01en_US
dc.identifier.issn0021-8979en_US
dc.identifier.urihttp://dx.doi.org/10.1063/1.3326944en_US
dc.identifier.urihttp://hdl.handle.net/11536/5817-
dc.description.abstractWe perform a self-consistent calculation to investigate the feasibility of electroluminescent refrigeration and light emitting without heat generation in AlGaAs/GaAs heterostructures, taking into account the effects of various recombination processes. The effect of radiation extraction on the cooling capacity and efficiency is also considered. Carrier blocking layers are used to almost eliminate current leakage and improve the injection efficiency to nearly 100%. An analysis is presented of the cooling power density, the cooling efficiency, and the radiative power density as functions of the applied voltage. We also explore the dependences of the cooling related quantities on the thickness and the doping of the active region. A GaAs active layer of thickness 5 mu m at 300 K can give a limiting cooling power density of 97 W/cm(2). We show that a net cooling power (>several W/cm(2)) and a high-power light emitting (>100 W/cm(2)) without heating are feasible. They require an overall efficiency of more than 90%, which is easily achieved if the photon recycling efficiency is high. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3326944]en_US
dc.language.isoen_USen_US
dc.titleAnalysis of heterostructures for electroluminescent refrigeration and light emitting without heat generationen_US
dc.typeArticleen_US
dc.identifier.doi10.1063/1.3326944en_US
dc.identifier.journalJOURNAL OF APPLIED PHYSICSen_US
dc.citation.volume107en_US
dc.citation.issue5en_US
dc.citation.epageen_US
dc.contributor.department電子工程學系及電子研究所zh_TW
dc.contributor.departmentDepartment of Electronics Engineering and Institute of Electronicsen_US
dc.identifier.wosnumberWOS:000275657500129-
dc.citation.woscount6-
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