Next Article in Journal
Low-Concentration Indium Doping in Solution-Processed Zinc Oxide Films for Thin-Film Transistors
Next Article in Special Issue
Spectral Selectivity of Plasmonic Interactions between Individual Up-Converting Nanocrystals and Spherical Gold Nanoparticles
Previous Article in Journal
Metallic Biomaterials: Current Challenges and Opportunities
Previous Article in Special Issue
Thermal Stability of P-Type BiSbTe Alloys Prepared by Melt Spinning and Rapid Sintering
Open AccessArticle

Mie-Metamaterials-Based Thermal Emitter for Near-Field Thermophotovoltaic Systems

1
Department of Mechanical, Industrial and Systems Engineering, University of Rhode Island, Kingston, RI 02881, USA
2
College of Life Sciences, Northwest University, Xi’an 710069, China
3
National Engineering Research Center for Miniaturized Detection Systems, Northwest University, Xi’an 710069, China
*
Author to whom correspondence should be addressed.
Materials 2017, 10(8), 885; https://doi.org/10.3390/ma10080885
Received: 28 June 2017 / Revised: 26 July 2017 / Accepted: 29 July 2017 / Published: 31 July 2017
(This article belongs to the Special Issue Advance in Plasmonics and Metamaterials)
In this work, we theoretically analyze the performance characteristics of a near-field thermophotovoltaic system consisting a Mie-metamaterial emitter and GaSb-based photovoltaic cell at separations less than the thermal wavelength. The emitter consists of a tungsten nanoparticle-embedded thin film of SiO 2 deposited on bulk tungsten. Numerical results presented here are obtained using formulae derived from dyadic Green’s function formalism and Maxwell–Garnett-Mie theory. We show that via the inclusion of tungsten nanoparticles, the thin layer of SiO 2 acts like an effective medium that enhances selective radiative heat transfer for the photons above the band gap of GaSb. We analyze thermophotovoltaic (TPV) performance for various volume fractions of tungsten nanoparticles and thicknesses of SiO 2 . View Full-Text
Keywords: near-field thermal radiation; thermophotovoltaics; Mie-metamaterials; effective medium theory near-field thermal radiation; thermophotovoltaics; Mie-metamaterials; effective medium theory
Show Figures

Figure 1

MDPI and ACS Style

Ghanekar, A.; Tian, Y.; Zhang, S.; Cui, Y.; Zheng, Y. Mie-Metamaterials-Based Thermal Emitter for Near-Field Thermophotovoltaic Systems. Materials 2017, 10, 885.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop