Design of multilayer ring emitter based on metamaterial for thermophotovoltaic applications

Fekadu Tolessa Maremi, Namkyu Lee, Geehong Choi, Taehwan Kim, Hyung Hee Cho

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The objective of this study is to design a broadband and wide-angle emitter based on metamaterials with a cut-off wavelength of 2.1 μm to improve the spectral efficiency of thermophotovoltaic emitters. To obtain broadband emission, we conducted the geometric parameter optimization of the number of stacked layers, the inner and outer radii of the nano-rings, and the thickness of the nano-rings. The numerical simulation results showed that the proposed emitter had an average emissivity of 0.97 within the targeted wavelength, which ranged from 0.2 μm to 2.1 μm. In addition, the presented multilayer nano-ring emitter obtained 79.6% spectral efficiency with an InGaAs band gap of 0.6 eV at 1400 K.

Original languageEnglish
Article number2299
JournalEnergies
Volume11
Issue number9
DOIs
Publication statusPublished - 2018 Sep 1

Fingerprint

Metamaterials
Multilayer
Multilayers
Spectral Efficiency
Ring
Wavelength
Broadband
Geometric Optimization
Emissivity
Energy gap
InGaAs
Parameter Optimization
Band Gap
Computer simulation
Radius
Angle
Numerical Simulation
Design

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Control and Optimization
  • Electrical and Electronic Engineering

Cite this

Maremi, Fekadu Tolessa ; Lee, Namkyu ; Choi, Geehong ; Kim, Taehwan ; Cho, Hyung Hee. / Design of multilayer ring emitter based on metamaterial for thermophotovoltaic applications. In: Energies. 2018 ; Vol. 11, No. 9.
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Design of multilayer ring emitter based on metamaterial for thermophotovoltaic applications. / Maremi, Fekadu Tolessa; Lee, Namkyu; Choi, Geehong; Kim, Taehwan; Cho, Hyung Hee.

In: Energies, Vol. 11, No. 9, 2299, 01.09.2018.

Research output: Contribution to journalArticle

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T1 - Design of multilayer ring emitter based on metamaterial for thermophotovoltaic applications

AU - Maremi, Fekadu Tolessa

AU - Lee, Namkyu

AU - Choi, Geehong

AU - Kim, Taehwan

AU - Cho, Hyung Hee

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