Selective absorption of solar energy in ultrafine chromium particles

Journal Article · Mon Nov 14 23:00:00 EST 1977 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.89496· OSTI ID:7092733

Granqvist, C G; Niklasson, G A

Ultrafine chromium particles prepared by evaporation in argon + air are found to be highly absorbing over the solar spectrum and highly transparent in the infrared. Such spectral selectivity is the distinctive feature of a coating in an efficient photothermal converter for solar energy. Optical transmittance through coatings with mass density 9 or approx. =0.5 g/m/sup 2/ agrees well with calculations based on the Maxwell-Garnett theory, whereas coatings with larger mass density exhibit a transmittance too low to be directly reconciled with this theory.

• Research Organization: Physics Department, Chalmers University of Technology, Fack, S--402 20 Gothenburg, Sweden
• OSTI ID: 7092733
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 31:10; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
141000* -- Solar Collectors & Concentrators
ABSORPTION SPECTRA
CHROMIUM
COATINGS
EFFICIENCY
ELECTRODEPOSITED COATINGS
ELECTROMAGNETIC RADIATION
ELEMENTS
INFRARED RADIATION
LIGHT TRANSMISSION
METALS
OPTICAL PROPERTIES
PARTICLES
PHYSICAL PROPERTIES
RADIATIONS
REFLECTIVITY
SOLAR COLLECTORS
SPECTRA
SPECTRALLY SELECTIVE SURFACES
SURFACE PROPERTIES
SURFACES
TRANSITION ELEMENTS