Effects of V2O3 buffer layers on sputtered VO2 smart windows: Improved thermochromic properties, tunable width of hysteresis loops and enhanced durability

doi:10.1016/j.apsusc.2018.02.083

	Effects of V2O3 buffer layers on sputtered VO2 smart windows: Improved thermochromic properties, tunable width of hysteresis loops and enhanced durability
	Long, Shiwei 1,2; Cao, Xun 1; Sun, Guangyao 1,2; Li, Ning 3; Chang, Tianci 1,2; Shao, Zewei 1,2; Jin, Ping 1,4
刊名	APPLIED SURFACE SCIENCE
	2018
卷号	441 页码:764
关键词	VO2 V2O3 Thermochromic Hysteresis loop Solar modulation ability Durability
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2018.02.083
英文摘要	Vanadium dioxide (VO2) is one of the most well-known thermochromic materials, which exhibits a notable optical change from transparent to reflecting in the infrared region upon a metal-insulator phase transition. For practical applications, VO2 thin films should be in high crystalline quality to obtain a strong solar modulation ability (AT,01). Meanwhile, narrow hysteresis loops and robust ambient durability are also indispensable for sensitivity and long-lived utilization, respectively. In this work, a series of high quality V2O3/VO2 bilayer structures were grown on quartz glass substrates by reactive magnetron sputtering. Basically, the bottom V2O3 acts as the buffer layer to improve the crystallinity of the top VO2, while the VO2 serves as the thermochromic layer to guarantee the solar modulation ability for energy-saving. We observed an obvious increase in Delta T-sol of 76% (from 7.5% to 13.2%) for VO2 films after introducing V2O3 buffer layers. Simultaneously, a remarkable reduction by 79% (from 21.9 degrees C to 4.7 degrees C) in width of hysteresis loop was obtained when embedding 60 nm V2O3 buffer for 60 nm VO2. In addition, VO2 with non-stoichiometry of V2O3 +/- X buffer demonstrates a broadening hysteresis loops width, which is derived from the lattice distortion caused by lattice imperfection. Finally, durability of VO2 has been significantly improved due to positive effects of V2O3 buffer layer. Our results lead to a comprehensive enhancement in crystallinity of VO2 and shed new light on the promotion of thermochromic property by homologous oxides for VO2. (C) 2018 Elsevier B.V. All rights reserved.
学科主题	Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000427816400090
资助机构	This study was financially supported by the National Natural Science Foundation of China (NSFC, 51572284), and the Shanghai Sailing Program (17YF1429800). ; This study was financially supported by the National Natural Science Foundation of China (NSFC, 51572284), and the Shanghai Sailing Program (17YF1429800).
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24903]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.Chinese Acad Sci, Res Ctr Ind Ceram, Shanghai Inst Ceram, Shanghai 200050, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.China Univ Petr, Coll Sci, Dept Mat Sci & Engn, Beijing 102249, Peoples R China 5.Natl Inst Adv Ind Sci & Technol, Mat Res Inst Sustainable Dev, Nagoya, Aichi 4638560, Japan
推荐引用方式 GB/T 7714	Long, Shiwei,Cao, Xun,Sun, Guangyao,et al. Effects of V2O3 buffer layers on sputtered VO2 smart windows: Improved thermochromic properties, tunable width of hysteresis loops and enhanced durability[J]. APPLIED SURFACE SCIENCE,2018,441:764, 772.
APA	Long, Shiwei.,Cao, Xun.,Sun, Guangyao.,Li, Ning.,Chang, Tianci.,...&Jin, Ping.(2018).Effects of V2O3 buffer layers on sputtered VO2 smart windows: Improved thermochromic properties, tunable width of hysteresis loops and enhanced durability.APPLIED SURFACE SCIENCE,441,764.
MLA	Long, Shiwei,et al."Effects of V2O3 buffer layers on sputtered VO2 smart windows: Improved thermochromic properties, tunable width of hysteresis loops and enhanced durability".APPLIED SURFACE SCIENCE 441(2018):764.