A highly-efficient, concentrating-photovoltaic/thermoelectric hybrid generator

Title
A highly-efficient, concentrating-photovoltaic/thermoelectric hybrid generator
Authors
최원준김진상백승협김상현김상태정성진금대명길태현정대한이수석박찬백정민이기석김창주
Keywords
Photovoltaic-thermoelectric hybrid generator; Concentrating photovoltaics; Thermoelectrics; Wafer bonding
Issue Date
2017-07
Publisher
Nano energy
Citation
VOL 37-247
Abstract
A concentrating photovoltaic (CPV) cell exhibits the highest conversion efficiency among any solar cells. However, the further enhancement of the CPV efficiency is strongly limited by the heat generation at high solar concentrations. Here, we demonstrate a concentrating photovoltaic/thermoelectric hybrid generator using a single-junction, GaAs-based solar cell and a conventional thermoelectric module as a model system. Our hybrid generator gives rise to the conversion efficiency larger than the single CPV cell by ~3% at the solar concentration of 50 suns. Controlling thermal flow in the hybrid generator and the Peltier cooling effect is the key to achieving high efficiency. Our result provides a framework for designing a highly-efficient hybrid generator using both photo-electric and photo-thermal effects for the clean-energy production.
URI
http://pubs.kist.re.kr/handle/201004/68256
ISSN
2211-2855
Appears in Collections:
KIST Publication > Article
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