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Practical emitters for thermophotovoltaics: a review
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032713_1.pdf
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Author(s)
Sakakibara, Reyu
Stelmakh, Veronika
Chan, Walker R.
Ghebrebrhan, Michael
Joannopoulos, John D.
Soljačić, Marin
Čelanović, Ivan
Journal
Journal of Photonics for Energy
Citation
Sakakibara, Reyu, Veronika Stelmakh, Walker R. Chan, Michael Ghebrebrhan, John D. Joannopoulos, Marin Soljačić, and Ivan Čelanović. “Practical Emitters for Thermophotovoltaics: a Review.” Journal of Photonics for Energy 9, no. 03 (February 26, 2019): 1. doi:10.1117/1.jpe.9.032713.
Version
Final published version
Abstract
© 2019 Society of Photo-Optical Instrumentation Engineers (SPIE) Thermophotovoltaic (TPV) systems are promising for harnessing solar energy, waste heat, and heat from radioisotope decay or fuel combustion. TPV systems work by heating an emitter that emits light that is converted to electricity. One of the key challenges is designing an emitter that not only preferentially emits light in certain wavelength ranges but also simultaneously satisfies other engineering constraints. To elucidate these engineering constraints, we first provide an overview of the state of the art, by classifying emitters into three categories based on whether they have been used in prototype system demonstrations, fabricated and measured, or simulated. We then present a systematic approach for assessing emitters. This consists of five metrics: optical performance, ability to scale to large areas, stability at high temperatures, ability to integrate into the system, and cost. Using these metrics, we evaluate and discuss the reported results of emitters used in system demonstrations. Although there are many emitters with good optical performance, more studies on their practical attributes are required, especially for those that are not yet used in prototype systems. This framework can serve as a guide for the development of emitters for long-lasting, high-performance TPV systems.
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DOI of Published Version
http://dx.doi.org/10.1117/1.JPE.9.032713
