中国科学院上海应用物理研究所机构知识库
Advanced  
CAS OpenIR  > 中科院上海应用物理研究所2011-2017年  > 期刊论文
题名:
Mesoporous SiO2/VO2 double-layer thermochromic coating with improved visible transmittance for smart window
作者: Zhang, J; Wang, J; Yang, CM; Jia, HB; Cui, XM; Zhao, SC; Xu, Y
刊名: SOLAR ENERGY MATERIALS AND SOLAR CELLS
出版日期: 2017
卷号: 162, 页码:134-141
关键词: Thermochromic ; VO2 ; Mesoporous SiO2 ; Double-layer coating ; Smart window
DOI: 10.1016/j.solmat.2016.12.048
文章类型: 期刊论文
英文摘要: Thermochromic vanadium dioxide (VO2) film is a potential material for smart-window. But the high refractive index ( > 2) of VO2 coating in visible band resulted in strong reflection and low visible transmission. If another coating with a definite low refractive index is laid on VO2 film to construct a gradient index multilayer system, the total reflection could be effectively reduced. Therefore in this paper we designed a mesoporous SiO2/VO2 double-layer system in which the mesoporous SiO2 layer possessed an index adjustable from 1.243 to 1.354 to reduce the surface reflection of VO2-based smart window. The mesoporous structure has been investigated through several techniques including 2D GISAXS, TEM and N-2 ad/desorption. More important, a facile, safe and low-cost solution method was employed to prepare VO2 film with 60 nm thickness directly from ammonium citrato-oxovanadate (IV) compound that was reported by us previously. On this newly designed mesoporous SiO2/VO2 double-layer coating, the integral visible transmittance at 25 degrees C (T-vis,L) increased to 80.0% from 69.8% of pure VO2 coating while the corresponsive integral visible transmittance at 90 degrees C (T-vis,T-H) increased to 78.9% from 67.6% of pure VO2 coating, if the index of mesoporous SiO2 layer was optimized to 1.299. Simultaneously, the near infrared switching ability at 2000 nm (Delta T-2000) reached 29.0% and solar energy modulation (Delta T-sol) was maintained at 10.2%. The phase transition temperatures (T-t) for VO2 coating and the optimized SiO2/VO2 double-layer coating were 51.9 degrees C and 53.8 degrees C respectively, far below 68 degrees C of bulky VO2. This optical performance should be very attractive for application in the further smart window because of little increased cost and greatly enhanced property.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000393720500017
ISSN号: 0927-0248
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/27379
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Mesoporous SiO2_VO2 double-layer thermochromic coating with improved visible transmittance for smart window.pdf(1261KB)期刊论文作者接受稿开放获取View Download

Recommended Citation:
Zhang, J,Wang, J,Yang, CM,et al. Mesoporous SiO2/VO2 double-layer thermochromic coating with improved visible transmittance for smart window[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS,2017-01-01,162:134-141.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Zhang, J]'s Articles
[Wang, J]'s Articles
[Yang, CM]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Zhang, J]‘s Articles
[Wang, J]‘s Articles
[Yang, CM]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Mesoporous SiO2_VO2 double-layer thermochromic coating with improved visible transmittance for smart window.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace