Emissivity enhancement of fused silica for space applications

Conference · Tue May 01 00:00:00 EDT 1984 · Conf. Rec. IEEE Photovoltaic Spec. Conf.; (United States)

OSTI ID:5902802

Rancourt, J D; Beauchamp, W T; Foster, V; Sachs, I

The emissivity of a fused silica solar cell cover at 300K can be improved by suppressing the reststrahlen reflectance band that occurs in the 9 to 10 micrometer range. A thin film spacer layer which is transparent both in the visible and the far infrared portions of the spectrum is coupled with a fused silica one to produce a 10 micrometer dark mirror for a fused silica substrate. In the visible portion of the spectrum the indices of the layers are matched with thin antireflection layers so that the average visible transmission can be made to exceed that of the bare substrate. The result is a cover which will operate at a lower temperature than an uncoated one.

• Research Organization: OCLI, Santa Rosa, CA
• OSTI ID: 5902802
• Report Number(s): CONF-840561-
• Journal Information: Conf. Rec. IEEE Photovoltaic Spec. Conf.; (United States), Journal Name: Conf. Rec. IEEE Photovoltaic Spec. Conf.; (United States); ISSN CRCND
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
ANTIREFLECTION COATINGS
CHALCOGENIDES
COATINGS
DIFFUSION
DIRECT ENERGY CONVERTERS
EMISSIVITY
EQUIPMENT
FABRICATION
HIGH TEMPERATURE
INFRARED SPECTRA
MINERALS
MIRRORS
OPACITY
OPTICAL PROPERTIES
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SATELLITES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SILICON SOLAR CELLS
SOLAR CELLS
SOLAR EQUIPMENT
SPACE FLIGHT
SPECTRA
SUBSTRATES
SURFACE PROPERTIES