Journal
OPTICS EXPRESS
Volume 18, Issue 19, Pages A314-A334Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.18.00A314
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Funding
- National Science Foundation [DMR-0819762]
- MIT S3TEC Energy Research Frontier Center of the Department of Energy [DE-SC0001299]
- Army Research Office through the Institute for Soldier Nanotechnologies [DAAD-19-02-D0002, W911NF-07-D0004]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [819762] Funding Source: National Science Foundation
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Despite their great promise, small experimental thermophotovoltaic (TPV) systems at 1000 K generally exhibit extremely low power conversion efficiencies (approximately 1%), due to heat losses such as thermal emission of undesirable mid-wavelength infrared radiation. Photonic crystals (PhC) have the potential to strongly suppress such losses. However, PhC-based designs present a set of non-convex optimization problems requiring efficient objective function evaluation and global optimization algorithms. Both are applied to two example systems: improved micro-TPV generators and solar thermal TPV systems. Micro-TPV reactors experience up to a 27-fold increase in their efficiency and power output; solar thermal TPV systems see an even greater 45-fold increase in their efficiency (exceeding the Shockley-Quiesser limit for a single-junction photovoltaic cell). (C) 2010 Optical Society of America
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