Spectral and thermal properties of tungsten selective emitters with rectangular microcavities for thermophotovoltaic generations

研究成果: Conference contribution

抄録

Spectral properties of 2D W surface gratings are investigated by numerical calculations based on rigorous coupled-wave analysis to obtain a good spectral selectivity enough to use as a selective emitter for thermophotovoltaic generations. To demonstrate the calculated results, a 2D grating with 1.0 μn periodicity composed of rectangular microcavities is fabricated on a single crystalline W substrate by electron beam lithography and fast atom beam etching techniques. This grating shows high emissivity in the NIR region corresponding to the spectral response of GaSb PV cells. It is also found that spectral emissivity of emitters is considerably dependent on temperature. A theoretical analysis is conducted to evaluate the temperature dependence of spectral emissivity of metallic microstructured selective emitters in the frame of the Drude theory.

本文言語English
ホスト出版物のタイトルProceddings of the 3rd World Conference on Photovoltaic Energy Conversion
編集者K. Kurokawa, L.L. Kazmerski, B. McNeils, M. Yamaguchi, C. Wronski
ページ208-211
ページ数4
出版ステータスPublished - 2003 12 1
イベントProceddings of the 3rd World Conference on Photovoltaic Energy Conversion - Osaka, Japan
継続期間: 2003 5 112003 5 18

出版物シリーズ

名前Proceedings of the 3rd World Conference on Photovoltaic Energy Conversion
A

Other

OtherProceddings of the 3rd World Conference on Photovoltaic Energy Conversion
国/地域Japan
CityOsaka
Period03/5/1103/5/18

ASJC Scopus subject areas

  • 工学(全般)

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