%0 Journal Article
%A Wang, Nengchao
%A Duchamp, Martial
%A Dunin-Borkowski, Rafal
%A Liu, S.
%A Zheng
%A Cao, X.
%A Long, Y.
%T Terbium-Doped VO$_{2}$ Thin Films: Reduced Phase Transition Temperature and Largely Enhanced Luminous Transmittance
%J Langmuir
%V 32
%N 3
%@ 0743-7463
%C Washington, DC
%I ACS Publ.
%M FZJ-2016-07919
%P 759
%D 2016
%X Vanadium dioxide (VO2) is a well-known thermochromic material with large IR modulating ability, promising for energy-saving smart windows. The main drawbacks of VO2 are its high phase transition temperature (τc = 68 °C), low luminous transmission (Tlum), and weak solar modulating ability (ΔTsol). In this paper, the terbium cation (Tb3+) doping was first reported to reduce τc and increase Tlum of VO2 thin films. Compared with pristine VO2, 2 at. % doping level gives both enhanced Tlum and ΔTsol from 45.8% to 54.0% and 7.7% to 8.3%, respectively. The Tlum increases with continuous Tb3+ doping and reaches 79.4% at 6 at. % doping level, representing ∼73.4% relative increment compared with pure VO2. This has surpassed the best reported doped VO2 thin films. The enhanced thermochromic properties is meaningful for smart window applications of VO2 materials.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000368950600014
%R 10.1021/acs.langmuir.5b04212
%U https://juser.fz-juelich.de/record/825456