Tao, H.Z.

Wan, M.N.

Yue, Yuanzheng

Zhang, W.Y.

Zhao, C.L.

Zhao, X.J.

Zhu, B.Q.

    Aalborg UniversitetFabrication and formation mechanism of porous VO2 thin films with superiorthermochromic performancesTao, H.Z.; Zhu, B.Q.; Zhang, W.Y.; Wan, M.N.; Zhao, C.L.; Zhao, X.J.; Yue, YuanzhengPublication date:2015Document VersionPublisher's PDF, also known as Version of recordLink to publication from Aalborg UniversityCitation for published version (APA):Tao, H. Z., Zhu, B. Q., Zhang, W. Y., Wan, M. N., Zhao, C. L., Zhao, X. J., & Yue, Y. (2015). Fabrication andformation mechanism of porous VO2 thin films with superior thermochromic performances. Abstract from ICGAnnual Meeting, Bangkok, Thailand.General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright ownersand it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.            ? Users may download and print one copy of any publication from the public portal for the purpose of private study or research.            ? You may not further distribute the material or use it for any profit-making activity or commercial gain            ? You may freely distribute the URL identifying the publication in the public portal ?Take down policyIf you believe that this document breaches copyright please contact us at vbn@aub.aau.dk providing details, and we will remove access tothe work immediately and investigate your claim.Downloaded from vbn.aau.dk on: April 30, 2017Fabrication and formation mechanism of porous VO2 thin films with superior thermochromic performances  Haizheng Taoa, Benqin Zhu a, Wenyuan Zhang a, Meinan Wan a, Changlin Zhao a, Xiujian Zhaoa, Yuanzheng Yuea,c aState Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology, Wuhan 430070,China bSection of Chemistry, Aalborg University, 9000 Aalborg, Denmark   Keywords:  Porous film; Vanadium Oxide  VO2 is the most ideal thermochromic material, which is often used for making smart windows with a transition temperature close to room temperature. Its thermochromic performances can be enhanced by introducing well-distributed pores. However, it is a challenge to form well-distributed pores in the high pure M/R phase VO2 film. Here we report on a novel, cost effective one-step method to create well-distributed pores while ensuring the formation of relatively high pure M/R phase VO2 thin films. The derived single-layer thin film exhibits superior thermochromic performances, e.g., high luminous transmittance (~60%) and large solar modulating ability (~8.5%). These findings open a new vista for fabrication of porous VO2 thin films with outstanding thermochromic properties. We also present some results about the thermal, mechanical and chemical stabilities of the thin film and discuss the mechanism of the interconnection between the film and the glass substrate.   Acknowledgements: NSFC(Nos. 51372180, 51032005, 51461135004), NCET(No. NCET-11-0687), NSF of Hubei Province(No. 2013CFA008), the Fundamental Research Funds for the Central Universities (Wuhan University of Technology, No. 145201012) and the key technology innovation project of Hubei Province (No. 2013AEA005, 2013AAA005). 

Fabrication and formation mechanism of porous VO2 thin films with superior thermochromic performances

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Fabrication and formation mechanism of porous VO2 thin films with superior thermochromic performances

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