Metal-dielectric-metal selective emitter with circular hole patterns for thermo-photovoltaic

Boram Yoon, Namkyu Lee, Ji Yeul Bae, Fekadu Tolessa, Hyung Hee Cho

Research output: Contribution to journalArticle

Abstract

In this study, we propose a thermophotovoltaic circular hole pattern Metal-Dielectric-Metal selective emitter. Tungsten and aluminum oxides are used to ensure heat resistance. By analyzing the absorption/ emission characteristics per the change of design parameters, we obtain optimal design values that secure selectively high emissivity. Localized surface plasmon resonance occurs at the edge of the tungsten circular hole pattern in the high absorption/emission band. This resonance has the effect of confining the magnetic field to the dielectric layer by forming induced loop-like currents. The spectral efficiency of the proposed emitter is 41.0% at 1,000K and 63.7% at 1,300K. It showed five- and three-times higher efficiency, respectively, than the black-body of the same temperature.

Original languageEnglish
Pages (from-to)357-363
Number of pages7
JournalTransactions of the Korean Society of Mechanical Engineers, B
Volume42
Issue number5
DOIs
Publication statusPublished - 2018 May

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All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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