Journal
JOURNAL OF MATERIALS RESEARCH
Volume 27, Issue 6, Pages 965-970Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1557/jmr.2012.25
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Funding
- Grants-in-Aid for Scientific Research [22310067] Funding Source: KAKEN
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Dispersions of reduced tungsten oxide and tungsten bronze nanoparticles are known to show a remarkable absorption of near-infrared (NIR) light applicable to solar control filters for automotive and architectural windows. Origin of the NIR absorption has been investigated by analyzing dielectric constants of CsxWO3 (x = 0.15, 0.25, and 0.33) and WO2.72, and using Mie scattering theory. The optical analysis and Mie scattering theory analysis indicate that a localized surface plasmon resonance and polarons of localized electrons contribute alongside to the observed NIR absorption at different wavelengths.
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