J. Mater. Sci. Technol. ›› 2015, Vol. 31 ›› Issue (8): 815-821.DOI: 10.1016/j.jmst.2014.12.011

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High-performance Sb:SnO2 Compact Thin Film Based on Surfactant-free and Binder-free Sb:Sn3O4 Suspension

Junhua Zhao1, *, Ruiqin Tan2, Ye Yang3, Wei Xu3, Jia Li3, Wenfeng Shen3, Guoqiang Wu1, Xufeng Yang1, Weijie Song3   

  1. 1 College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, China; 2 Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China; 3 Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
  • Received:2014-09-21 Online:2015-08-20
  • Contact: * Corresponding author. Ph.D.; Tel.: t86 570 8026666; Fax: t86 570 8026546.
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Nos. 21377063, 51102250, 21203226, 21205127, 21271116 and 21476127), and the Personnel Training Foundation of Quzhou University (No. BSYJ201412).

Abstract: Surfactant-free and binder-free antimony-doped tin oxide (ATO) transparent conducting thin films were fabricated through spin coating and rapid annealing processes, in which nanosheets were assembled into a compact structure via self-contracting high pressure. The mechanism of this compact thin film formation was further proposed and analyzed. The compact ATO thin film had a low root mean square (RMS) roughness of 5.03 nm. This surfactant-free and binder-free compact ATO thin film delivered low resistivity of 3.04 × 10?2 Ω cm, stable resistivity which only increased 13% after exposing in 65% RH air for half a month, high transmittance of 92.70% at 550 nm, and high band gap energy of 4.07 eV. This effective strategy will provide new insight into the synthesis of low-cost and high-performance compact thin films.

Key words: Antimony doped tin oxide, Compact thin film, Sn3O4 suspension, Electrical properties, Optical properties