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Title: Solar thermophotovoltaics: reshaping the solar spectrum

Journal Article · · Nanophotonics
 [1];  [1];  [1];  [1]
  1. Purdue Univ., West Lafayette, IN (United States). Birck Nanotechnology Center

There has been increasing interest in utilizing solar thermophotovoltaics (STPV) to convert sunlight into electricity, given their potential to exceed the Shockley-Queisser limit. Encouragingly, there have also been several recent demonstrations of improved system-level efficiency as high as 6.2%. Here, we review prior work in the field, with particular emphasis on the role of several key principles in their experimental operation, performance, and reliability. In particular, for the problem of designing selective solar absorbers, we consider the trade-off between solar absorption and thermal losses, particularly radiative and convective mechanisms. For the selective thermal emitters, we consider the tradeoff between emission at critical wavelengths and parasitic losses. Then for the thermophotovoltaic (TPV) diodes, we consider the trade-off between increasing the potential short-circuit current, and maintaining a reasonable opencircuit voltage. This treatment parallels the historic development of the field, but also connects early insights with recent developments in adjacent fields.With these various components connecting in multiple ways, a system-level end-to-end modeling approach is necessary for a comprehensive understanding and appropriate improvement of STPV systems. Our approach will ultimately allow researchers to design STPV systems capable of exceeding recently demonstrated efficiency values.

Research Organization:
Purdue Univ., West Lafayette, IN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
EE0004946
OSTI ID:
1363863
Journal Information:
Nanophotonics, Vol. 5, Issue 1; ISSN 2192-8606
Publisher:
de GruyterCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 91 works
Citation information provided by
Web of Science

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Cited By (16)

Pareto Optimal Spectrally Selective Emitters for Thermophotovoltaics via Weak Absorber Critical Coupling journal July 2018
Near-field radiative thermoelectric energy converters: a review journal December 2017
Nanophotonic engineering of far-field thermal emitters journal May 2019
High temperature efficient, stable Si wafer-based selective solar absorbers journal April 2017
From thermoelectricity to phonoelectricity journal June 2019
Self-sustaining thermophotonic circuits journal May 2019
Accelerating the discovery of multilayer nanostructures with analytic differentiation of the transfer matrix equations journal January 2020
Study of W/HfO 2 grating selective thermal emitters for thermophotovoltaic applications journal January 2018
New insights into the thermal behavior and management of thermophotovoltaic systems journal January 2019
Polarization-independent and high-efficiency broadband optical absorber in visible light based on nanostructured germanium arrays journal January 2019
Fundamental limits of hot carrier injection from metal in nanoplasmonics journal February 2020
Surface Roughness Effects on the Broadband Reflection for Refractory Metals and Polar Dielectrics journal September 2019
Anti-Reflectance Optimization of Secondary Nanostructured Black Silicon Grown on Micro-Structured Arrays journal August 2018
Anti-reflectance investigation of a micro-nano hybrid structure fabricated by dry/wet etching methods journal May 2018
WPTherml: A Python Package for the Design of Materials for Harnessing Heat journal January 2019
A unified approach to the thermodynamics of a photovoltaic system preprint January 2020

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