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Title:
 
Thermally Robust, High-Temperature Metamaterial Emitters
 
Author(s):
 
N. Pfiester, N. Naka, D. DeMeo, C. Shemelya, T.E. Vandervelde
 
Keywords:
 
Thermophotovoltaics, Design, Metamaterials
 
Topic:
 
NEW MATERIALS AND CONCEPTS FOR SOLAR CELLS AND MODULES
Subtopic: New Materials and Concepts for Cells
Event: 29th European Photovoltaic Solar Energy Conference and Exhibition
Session: 1BV.7.63
 
Pages:
 
334 - 337
ISBN: 3-936338-34-5
Paper DOI: 10.4229/EUPVSEC20142014-1BV.7.63
 
Price:
 
 
0,00 EUR
 
Document(s): paper
 

Abstract/Summary:


The efficiency of existing energy sources can be increased through the application of thermophotovoltaic (TPV) technologies, which would reclaim lost heat and turn it back into usable electricity. In order to maximize the efficiency of these sources, the conversion efficiency of the TPV system needs to be optimized. Using metamaterials, we have created selective emitters that tailor the incident light spectrum to the band gap of specific diodes, offering the potential to reduce diode heating and increase efficiency. Usage of metals such as platinum and tungsten 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.