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Issue 54, 2016, Issue in Progress
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Effect of lanthanum doping on modulating the thermochromic properties of VO2 thin films

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Abstract

Lanthanum (La) doped vanadium dioxide (VO2) thin films were fabricated through a facile sol–gel technique. The La doping was found to be effective for reducing the phase transition temperature (τc) of VO2 below the 4 at% doping level, with a reducing rate of −1.1 °C per at%. In addition, below the 3 at% La doping level, the band gap (Eg) decreased steadily with the increasing addition of La dopants. 5 at% La doping can enhance both the integrated visible transmission (Tlum) and the solar modulating ability (ΔTsol) simultaneously. The combination of Tlum = 50.1% and ΔTsol = 10.3% represents the best values for VO2 continuous thin films.

Graphical abstract: Effect of lanthanum doping on modulating the thermochromic properties of VO2 thin films

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Article information


Submitted
13 Apr 2016
Accepted
08 May 2016
First published
09 May 2016

RSC Adv., 2016,6, 48455-48461
Article type
Paper

Effect of lanthanum doping on modulating the thermochromic properties of VO2 thin films

N. Wang, N. T. Chew Shun, M. Duchamp, R. E. Dunin-Borkowski, Z. Li and Y. Long, RSC Adv., 2016, 6, 48455
DOI: 10.1039/C6RA09514C

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