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Depressed haze and enhanced solar modulation capability for VO2-based composite films with distinct size effects
Miao, Lei1,2; Chen, Ru2,3; Zhou, Jianhua1; Liu, Chengyan1; Peng, Ying1; Gao, Jie1; Sun, Lixian1; Tanemura, Sakae1,4
2016
Source PublicationRSC ADVANCES
Volume6Issue:93Pages:90813-90823
AbstractFor decades, scientists have devoted themselves to developing vanadium dioxide (VO2) films for thermochromic smart windows, but there remains a major challenge to their large-scale implementation owing to their limited solar modulation ability. Here, we show a new method for improving their solar modulation ability via increasing optical switching in the visible region upon phase transition. VO2-based composite films that exhibited reduced haze (haze(555) (nm) down from 46.5% to 2.2% @RT), improved luminous transmittance (up from 9.6% to 38.5% @RT) and enhanced solar modulation ability (Delta T-sol up from 8.1% to 16.9% @RT) have been fabricated by a convenient and controllable approach. With this method, the mean sizes of VO2 particles can be easily tuned from 150 nm to 40 nm by varying the preparation parameters. Via a combination of the optical transmittance spectrum and Mie calculations, we first observed the behavior of optical switching in the visible region upon phase transition, which is size-dependent. Moreover, distinctive size effects on variations in the band gap energy and specific interband transitions were studied based on the absorption spectra of VO2 composite films.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c6ra16667a
WOS Subject ExtendedChemistry
WOS KeywordMETAL-INSULATOR-TRANSITION ; THERMOCHROMIC VO2 FILMS ; OPTICAL-PROPERTIES ; PHASE-TRANSITION ; LUMINOUS TRANSMITTANCE ; HYDROTHERMAL SYNTHESIS ; VISIBLE TRANSMITTANCE ; LIGHT-SCATTERING ; NANOPARTICLES ; TRANSPARENT
Indexed BySCI
Language英语
Funding OrganizationScience and Technology Planning Project of Guangdong Province, China(2013B050800006) ; External Cooperation Program of BIC, Chinese Academy of Sciences(182344KYSB20130006) ; National Natural Science Foundation of China(51572049 ; Guangxi Natural Science Foundation of China(2015GXNSFFA139002) ; 51562005)
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000385451800098
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/13744
Collection中国科学院广州能源研究所
Affiliation1.Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guangxi Key Lab Informat Mat, Guangxi Collaborat Innovat Ctr Struct & Property, Guilin 541004, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Japan Fine Ceram Ctr, Atsuta Ku, 2-4-1 Mutsuno, Nagoya, Aichi 4568587, Japan
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Miao, Lei,Chen, Ru,Zhou, Jianhua,et al. Depressed haze and enhanced solar modulation capability for VO2-based composite films with distinct size effects[J]. RSC ADVANCES,2016,6(93):90813-90823.
APA Miao, Lei.,Chen, Ru.,Zhou, Jianhua.,Liu, Chengyan.,Peng, Ying.,...&Tanemura, Sakae.(2016).Depressed haze and enhanced solar modulation capability for VO2-based composite films with distinct size effects.RSC ADVANCES,6(93),90813-90823.
MLA Miao, Lei,et al."Depressed haze and enhanced solar modulation capability for VO2-based composite films with distinct size effects".RSC ADVANCES 6.93(2016):90813-90823.
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