Journal
OPTICS EXPRESS
Volume 17, Issue 17, Pages 15145-15159Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.17.015145
Keywords
-
Categories
Funding
- GCEP program at Stanford
- AFOSR-MURI program [FA9550-08-1-0407]
- William R. and Sara Hart Kimball Stanford Graduate Fellowship
Ask authors/readers for more resources
We present theoretical considerations as well as detailed numerical design of absorber and emitter for Solar Thermophotovoltaics (STPV) applications. The absorber, consisting of an array of tungsten pyramids, was designed to provide near-unity absorptivity over all solar wavelengths for a wide angular range, enabling it to absorb light effectively from solar sources regardless of concentration. The emitter, a tungsten slab with Si/SiO2 multilayer stack, provides a sharp emissivity peak at the solar cell band-gap while suppressing emission at lower frequencies. We show that, under a suitable light concentration condition, and with a reasonable area ratio between the emitter and absorber, a STPV system employing such absorber-emitter pair and a single-junction solar cell can attain efficiency that exceeds the Shockley-Queisser limit. (C) 2009 Optical Society of America
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available