Selective absorption of solar energy in ultrafine chromium particles
作者:
C. G. Granqvist,
G. A. Niklasson,
期刊:
Applied Physics Letters
(AIP Available online 1977)
卷期:
Volume 31,
issue 10
页码: 665-666
ISSN:0003-6951
年代: 1977
DOI:10.1063/1.89496
出版商: AIP
数据来源: AIP
摘要:
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 ≲0.5 g/m2agrees 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.
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