Journal
NANOSCALE
Volume 5, Issue 19, Pages 9208-9213Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr02221h
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Funding
- National Key Basic Research Program (NKBRP) [2009CB939904]
- MOST [2012AA030605, 2012BAA10B03]
- National Natural Science Foundation of China (NSFC) [51032008, 51272273, 51102270, 51272271, 51172265]
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Transition-metal oxide nanocrystals are novel candidates for being used as the hosts of localized surface plasmon resonance because they exhibit fascinating properties arising from the unique characteristics of their outer-d valence electrons. VO2(M) nanocrystal is well-known due to its reversible metal-insulator transition (MIT) temperature near room temperature (similar to 68 degrees C) corresponding to the appearance/disappearance of localized surface plasmon resonance across the MIT. In this study, a microemulsion-based method was introduced to synthesize VO2(M)@SiO2 nanoparticles which were applied to prepare VO2-based thermochromic foils owing to a strong and tunable surface plasmon resonance in the metallic state. The optical transmittance spectra demonstrates that the employment of surface plasmon resonance in VO2-based thermochromic foils greatly improves their solar regulating efficiency up to 18.54%, and provides an unprecedented insight in optimizing VO2-based thermochromic windows for solar control.
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