UM
Free-standing SWNTs/VO 2 /Mica hierarchical films for high-performance thermochromic devices
Chen Y.; Fan L.; Fang Q.; Xu W.; Chen S.; Zan G.; Ren H.; Song L.; Zou C.
2017
Source PublicationNano Energy
ISSN22112855
Volume31Pages:144-151
AbstractVanadium dioxide (VO ) with reversible metal-insulator transition (MIT) is a promising energy-saving material for next-generation smart windows and infrared devices. However, the specific applications are largely limited by the relatively high critical temperature as well as the non-transferable grown-substrate. Herein, we report such limitations can be overcome by directly growing VO on layered mica sheets and integrating with high transparent single-walled carbon nanotube (SWNT) films. The SWNTs/VO /mica hierarchical films can be peeled-off to form a free-standing ultra-thin optical window and can further be transferred to other substrates with high flexibility and transparency. By heating the SWNTs/VO layer with a bias current, the MIT process of VO film can be facilely modulated, achieving the reversible and dynamical regulation of the infrared transmission. Furthermore, by adjusting the bias current, it is possible to change the starting local temperature and shift the initial situation close to the “phase transition boundary”, resulting in the decreased energy barrier to trigger the MIT behavior. This fascinating strategy overcomes the high critical temperature limit of VO and avoids the bottle-neck problem in practical applications of VO material, which demonstrates wide applications of this kind of device in the future.
KeywordEnergy-saving material Optical switching Phase transition Vanadium dioxide
DOI10.1016/j.nanoen.2016.11.030
URLView the original
Language英語
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Cited Times [WOS]:28   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
AffiliationUniversity of Science and Technology of China
Recommended Citation
GB/T 7714
Chen Y.,Fan L.,Fang Q.,et al. Free-standing SWNTs/VO 2 /Mica hierarchical films for high-performance thermochromic devices[J]. Nano Energy,2017,31:144-151.
APA Chen Y..,Fan L..,Fang Q..,Xu W..,Chen S..,...&Zou C..(2017).Free-standing SWNTs/VO 2 /Mica hierarchical films for high-performance thermochromic devices.Nano Energy,31,144-151.
MLA Chen Y.,et al."Free-standing SWNTs/VO 2 /Mica hierarchical films for high-performance thermochromic devices".Nano Energy 31(2017):144-151.
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