TY  - JOUR
AU  - Wang, Nengchao
AU  - Duchamp, Martial
AU  - Dunin-Borkowski, Rafal
AU  - Liu, S.
AU  - Zheng
AU  - Cao, X.
AU  - Long, Y.
TI  - Terbium-Doped VO$_{2}$ Thin Films: Reduced Phase Transition Temperature and Largely Enhanced Luminous Transmittance
JO  - Langmuir
VL  - 32
IS  - 3
SN  - 0743-7463
CY  - Washington, DC
PB  - ACS Publ.
M1  - FZJ-2016-07919
SP  - 759
PY  - 2016
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000368950600014
DO  - DOI:10.1021/acs.langmuir.5b04212
UR  - https://juser.fz-juelich.de/record/825456
ER  -