publication . Article . 2017

Fabrication of thin-film thermoelectric generators with ball lenses for conversion of near-infrared solar light

Ito, Yoshitaka; Mizoshiri, Mizue; Mikami, Masashi; Kondo, Tasuku; Sakurai, Junpei; Hata, Seiichi;
Open Access English
  • Published: 01 Jun 2017 Journal: Japanese Journal of Applied Physics, volume 56, issue 6S1, pages 06GN06-06GN06 (issn: 0021-4922, Copyright policy)
  • Publisher: IOP publishing
Abstract
We designed and fabricated thin-film thermoelectric generators (TEGs) with ball lenses, which separated visible light and near-infrared (NIR) solar light using a chromatic aberration. The transmitted visible light was used as daylight and the NIR light was used for thermoelectric generation. Solar light was estimated to be separated into the visible light and NIR light by a ray tracing method. 92.7% of the visible light was used as daylight and 9.9% of the NIR light was used for thermoelectric generation. Then, the temperature difference of the pn junctions of the TEG surface was 0.71 K, determined by heat conduction analysis using a finite element method. The t...
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Article . 2017
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