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Title: High temperature selective emitters via critical coupling of weak absorbers

Abstract

Tailoring the emission spectra of a solar thermophotovoltaic emitter away from that of a blackbody, thereby minimizing transmission and thermalization loss in the energy receiver, is a viable approach to circumventing the Shockley-Queisser limit to single junction solar energy conversion. Embodiments allow for radically tuned selective thermal emission that leverages the interplay between two resonant phenomena in a simple planar structure—absorption in weakly-absorbing thin films and reflection in multi-layer dielectric stacks. A virtual screening approach is employed based on Pareto optimality to identify a small number of promising structures for a selective thermal emitter from a search space of millions, several of which approach the ideal values of a step-function selective thermal emitter.

Inventors:
; ; ;
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1771569
Patent Number(s):
10819270
Application Number:
15/923,909
Assignee:
UChicago Argonne, LLC (Chicago, IL); William Paterson University of New Jersey (Wayne, NJ)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING
DOE Contract Number:  
AC02-06CH11357; W-31-109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 03/16/2018
Country of Publication:
United States
Language:
English

Citation Formats

Martinson, Alex B., Jeon, Nari, Gray, Stephen K., and Foley, IV, Jonathan J. High temperature selective emitters via critical coupling of weak absorbers. United States: N. p., 2020. Web.
Martinson, Alex B., Jeon, Nari, Gray, Stephen K., & Foley, IV, Jonathan J. High temperature selective emitters via critical coupling of weak absorbers. United States.
Martinson, Alex B., Jeon, Nari, Gray, Stephen K., and Foley, IV, Jonathan J. Tue . "High temperature selective emitters via critical coupling of weak absorbers". United States. https://www.osti.gov/servlets/purl/1771569.
@article{osti_1771569,
title = {High temperature selective emitters via critical coupling of weak absorbers},
author = {Martinson, Alex B. and Jeon, Nari and Gray, Stephen K. and Foley, IV, Jonathan J.},
abstractNote = {Tailoring the emission spectra of a solar thermophotovoltaic emitter away from that of a blackbody, thereby minimizing transmission and thermalization loss in the energy receiver, is a viable approach to circumventing the Shockley-Queisser limit to single junction solar energy conversion. Embodiments allow for radically tuned selective thermal emission that leverages the interplay between two resonant phenomena in a simple planar structure—absorption in weakly-absorbing thin films and reflection in multi-layer dielectric stacks. A virtual screening approach is employed based on Pareto optimality to identify a small number of promising structures for a selective thermal emitter from a search space of millions, several of which approach the ideal values of a step-function selective thermal emitter.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {10}
}

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