Abstract
Both wavelength selectivity and directional insensitivity are highly desired in thermophotovoltaic applications. A concept of a magnetic-polariton- enhanced thermophotovoltaic emitter is presented. The predicted normal emittance from such a nanoengineered surface exceeds 0.8 in the wavelength region from 0.62 to 1.98 μm and is below 0.2 at wavelengths longer than 2.4 μm. Furthermore, thermal emission from the proposed structure is diffuse-like as the emittance changes little with the direction up to 75° from the normal. The strip width allows tuning of the emittance spectrum to match particular photovoltaic cells to potentially enhance power generation with improved conversion efficiency.
| Original language | English (US) |
|---|---|
| Article number | 063902 |
| Journal | Applied Physics Letters |
| Volume | 100 |
| Issue number | 6 |
| DOIs | |
| State | Published - Feb 6 2012 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Wavelength-selective and diffuse emitter enhanced by magnetic polaritons for thermophotovoltaics. / Wang, Liping; Zhang, Z. M.
In: Applied Physics Letters, Vol. 100, No. 6, 063902, 06.02.2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Wavelength-selective and diffuse emitter enhanced by magnetic polaritons for thermophotovoltaics
AU - Wang, Liping
AU - Zhang, Z. M.
PY - 2012/2/6
Y1 - 2012/2/6
N2 - Both wavelength selectivity and directional insensitivity are highly desired in thermophotovoltaic applications. A concept of a magnetic-polariton- enhanced thermophotovoltaic emitter is presented. The predicted normal emittance from such a nanoengineered surface exceeds 0.8 in the wavelength region from 0.62 to 1.98 μm and is below 0.2 at wavelengths longer than 2.4 μm. Furthermore, thermal emission from the proposed structure is diffuse-like as the emittance changes little with the direction up to 75° from the normal. The strip width allows tuning of the emittance spectrum to match particular photovoltaic cells to potentially enhance power generation with improved conversion efficiency.
AB - Both wavelength selectivity and directional insensitivity are highly desired in thermophotovoltaic applications. A concept of a magnetic-polariton- enhanced thermophotovoltaic emitter is presented. The predicted normal emittance from such a nanoengineered surface exceeds 0.8 in the wavelength region from 0.62 to 1.98 μm and is below 0.2 at wavelengths longer than 2.4 μm. Furthermore, thermal emission from the proposed structure is diffuse-like as the emittance changes little with the direction up to 75° from the normal. The strip width allows tuning of the emittance spectrum to match particular photovoltaic cells to potentially enhance power generation with improved conversion efficiency.
UR - http://www.scopus.com/inward/record.url?scp=84863149339&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863149339&partnerID=8YFLogxK
U2 - 10.1063/1.3684874
DO - 10.1063/1.3684874
M3 - Article
VL - 100
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 6
M1 - 063902
ER -