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Title:
 
Platinum Metamaterials for Thermophotovoltaic Selective Emitters
 
Author(s):
 
N.A. Pfiester, N. Naka, T.E. Vandervelde
 
Keywords:
 
Thermophotovoltaics, Optical Properties
 
Topic:
 
NEW MATERIALS AND CONCEPTS FOR SOLAR CELLS AND MODULES
Subtopic: New Materials and Concepts for cells
Event: 31st European Photovoltaic Solar Energy Conference and Exhibition
Session: 1CO.9.4
 
Pages:
 
55 - 58
ISBN: 3-936338-39-6
Paper DOI: 10.4229/EUPVSEC20152015-1CO.9.4
 
Price:
 
 
0,00 EUR
 
Document(s): paper
 

Abstract/Summary:


Thermophotovoltaic (TPV) technologies used in conjunction with present infrastructure can lead to increased energy output by reclaiming the heat lost during production processes. To maximize the efficiency of these sources, the conversion efficiency of the TPV system needs to be optimized. Metamaterials provide an excellent medium for the creation of selective emitters. Such emitters tailor the incident light spectrum to the band gap of the diode in question, offering the potential to reduce diode heating and increase efficiency. We have created such devices at a wide range of wavelengths to observe the performance of various sized nanostructures at high temperatures. Usage of conducting metals such as platinum and iridium makes the emitters able to withstand the high temperatures required to create ideal spectra for III-V cells. Simulations from CST Microwave Studio were used in the design process and testing of the emitters included ellipsometer absorption measurements and emission testing using a high temperature blackbody source.