Facile solution-grown mo-doped vanadium dioxide thermochromic films with decreased phase transition temperature and narrowed hysteresis loop width

Li Li Zhao, Lei Miao, Cheng Yan Liu, Chao Li, Hao Liang Cheng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Molybdenum (Mo) doped vanadium dioxide (VO2) (V1-xMoxO2) thermochromic thin films with different Mo concentrations on borosilicate glasses were successfully synthesized via a facile and economic solution-based deposition method. The influences of substitutional doping with Mo dopants on the crystal structure and film morphology of VO2 were evaluated. All of the films were confirmed to be pure monoclinic crystalline phase of VO2 and no molybdenum oxides formed, suggesting the formation of a homogeneously dispersed solid-solution. The particle sizes and root-mean-square (RMS) roughness level obviously decreased upon Mo doping. V1-xMoxO2 films exhibited low metal-semiconductor transition (MST) temperature (Tc) and retained the excellent switching property at near-infrared region simultaneously. The rate of change of Tc with Mo doping reached as high as ~10°C/at.%. The reduced Tc may be attributed to the disruption of homo-polar V4+-V4+ bonding after the incorporation of Mo atoms in VO2 octahedron configuration. V1-xMoxO2 thin films exhibited narrower hysteresis loop width compared to undoped VO2, which show the promise for promoting practical implementation of VO2-based thermochromic fenestration.

Original languageEnglish
Title of host publicationEnergy, Environment and Functional Materials
PublisherTrans Tech Publications Ltd
Pages23-30
Number of pages8
ISBN (Print)9783038350873
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event12th IUMRS International Conference on Advanced Materials, IUMRS-ICAM 2013 - Qingdao, China
Duration: 2013 Sep 222013 Sep 28

Publication series

NameMaterials Science Forum
Volume787
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference12th IUMRS International Conference on Advanced Materials, IUMRS-ICAM 2013
CountryChina
CityQingdao
Period13/9/2213/9/28

Keywords

  • Hysteresis loop width
  • MST temperature
  • Thermochromic property

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Zhao, L. L., Miao, L., Liu, C. Y., Li, C., & Cheng, H. L. (2014). Facile solution-grown mo-doped vanadium dioxide thermochromic films with decreased phase transition temperature and narrowed hysteresis loop width. In Energy, Environment and Functional Materials (pp. 23-30). (Materials Science Forum; Vol. 787). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/MSF.787.23