Solar-thermophotovoltaic systems using spectrally selective absorber/emitter based on metal-dielectric multilayer

A. Kohiyama, M. Shimizu, H. Yugami

研究成果: Conference contribution

抜粋

In this paper, high-efficiency STPV systems are investigated using spectrally selective absorber/emitter consisted of metal-dielectric multilayer and a GaSb TPV cell. A solar-thermophotovoltaic (STPV) system is expected to as highefficiency solar energy conversion using single-junction photovoltaic (PV) cells. However, the reached experimental system efficiency has been still low because spectral control of emitter is not sufficient. Narrowband thermal radiation from the emitter is effective for obtaining high-efficiency STPV systems, exceeding the Shockley-Queisser limit. From theoretical analysis, the narrowband thermal emitter can leads to obtain PV conversion efficiency over 45% at Qvalue= 30 and 1300K. The spectrally selective absorber/emitter was also investigated to obtain high ηPV. The ηPV = 23.5% was estimated by the fabricated emitter spectrum, which exceeds the Shockley-Queisser limit of 19.6% for a GaSb bandgap of 0.67 eV. The entire STPV system and the power generation tests were conducted using the fabricated absorber/emitter. The total system efficiency 4.9% at 1505K was obtained under an irradiance of 109 Wcm-2.

元の言語English
ホスト出版物のタイトルNext Generation Technologies for Solar Energy Conversion VII
編集者Gavin Conibeer, Oleg V. Sulima
出版者SPIE
ISBN(電子版)9781510602656
DOI
出版物ステータスPublished - 2016
イベントNext Generation Technologies for Solar Energy Conversion VII - San Diego, United States
継続期間: 2016 8 292016 8 31

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
9937
ISSN(印刷物)0277-786X
ISSN(電子版)1996-756X

Other

OtherNext Generation Technologies for Solar Energy Conversion VII
United States
San Diego
期間16/8/2916/8/31

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • これを引用

    Kohiyama, A., Shimizu, M., & Yugami, H. (2016). Solar-thermophotovoltaic systems using spectrally selective absorber/emitter based on metal-dielectric multilayer. : G. Conibeer, & O. V. Sulima (版), Next Generation Technologies for Solar Energy Conversion VII [993704] (Proceedings of SPIE - The International Society for Optical Engineering; 巻数 9937). SPIE. https://doi.org/10.1117/12.2237672