Photon-enhanced thermionic emission from heterostructures with low interface recombination
نویسندگان
چکیده
منابع مشابه
Solar energy conversion with photon-enhanced thermionic emission
Photon-enhanced thermionic emission (PETE) converts sunlight to electricity with the combined photonic and thermal excitation of charge carriers in a semiconductor, leading to electron emission over a vacuum gap. Theoretical analyses predict conversion efficiency that can match, or even exceed, the efficiency of traditional solar thermal and photovoltaic converters. Several materials have been ...
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We use two heterostructure designs to improve the energy conversion efficiency of solidstate thermionic devices. The first method is to use a non-planar heterostructure with roughness in order of electron mean free path. This has some combined benefits of increased effective interface area, and reduced total internal reflection for the electron trajectories arriving at the interface. Monte Carl...
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Conversion of solar radiation to electricity with Photon-Enhanced Thermionic Emission (PETE) uses both photonic and thermal excitation of charge carriers in a semiconductor. This device includes a semiconductor cathode (which can be composed of several semiconductor materials) illuminated and heated by concentrated sunlight, and a cooler anode, separated by a small vacuum gap. First theoretical...
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ژورنال
عنوان ژورنال: Nature Communications
سال: 2013
ISSN: 2041-1723
DOI: 10.1038/ncomms2577