Terbium-Doped VO2 Thin Films : Reduced Phase Transition Temperature and Largely Enhanced Luminous Transmittance

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 (τ(c) = 68°C), low luminous transmission (T(lum)), and weak solar modulating ability (ΔT(sol)...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 32(2016), 3 vom: 26. Jan., Seite 759-64
1. Verfasser: Wang, Ning (VerfasserIn)
Weitere Verfasser: Duchamp, Martial, Dunin-Borkowski, Rafal E, Liu, Shiyu, Zeng, XianTing, Cao, Xun, Long, Yi
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't
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520 |a 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 (τ(c) = 68°C), low luminous transmission (T(lum)), and weak solar modulating ability (ΔT(sol)). In this paper, the terbium cation (Tb(3+)) doping was first reported to reduce τ(c) and increase T(lum) of VO2 thin films. Compared with pristine VO2, 2 at. % doping level gives both enhanced T(lum) and ΔT(sol) from 45.8% to 54.0% and 7.7% to 8.3%, respectively. The T(lum) increases with continuous Tb(3+) 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 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
700 1 |a Duchamp, Martial  |e verfasserin  |4 aut 
700 1 |a Dunin-Borkowski, Rafal E  |e verfasserin  |4 aut 
700 1 |a Liu, Shiyu  |e verfasserin  |4 aut 
700 1 |a Zeng, XianTing  |e verfasserin  |4 aut 
700 1 |a Cao, Xun  |e verfasserin  |4 aut 
700 1 |a Long, Yi  |e verfasserin  |4 aut 
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