J. Mater. Sci. Technol. ›› 2016, Vol. 32 ›› Issue (3): 207-217.DOI: 10.1016/j.jmst.2015.08.002

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Chemical Bath Co-deposited ZnS Film Prepared from Different Zinc Salts: ZnSO4-Zn(CH3COO)2, Zn(NO3)2-Zn(CH3COO)2, or ZnSO4-Zn(NO3)2

Tingzhi Liu1, Yangyang Li1, Huan Ke1, Yuhai Qian2, Shuwang Duo1, 2, Yanli Hong1, Xinyuan Sun1   

  1. 1 Jiangxi Key Laboratory of Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China;
    2 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • 收稿日期:2015-01-12 修回日期:2015-04-26 出版日期:2016-03-10

Chemical Bath Co-deposited ZnS Film Prepared from Different Zinc Salts: ZnSO4-Zn(CH3COO)2, Zn(NO3)2-Zn(CH3COO)2, or ZnSO4-Zn(NO3)2

Tingzhi Liu1, Yangyang Li1, Huan Ke1, Yuhai Qian2, Shuwang Duo1, 2, Yanli Hong1, Xinyuan Sun1   

  1. 1 Jiangxi Key Laboratory of Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China;
    2 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2015-01-12 Revised:2015-04-26 Online:2016-03-10
  • Contact: Ph.D.; Tel.: +86 791 83831266; Fax: +86 791 83831266.E-mail address: swduo@imr.ac.cn (S. Duo).
  • Supported by:
    The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (No. 50963003), the Natural Science Foundation of Jiangxi Province (No. 2010GZC0044), the Foundation of Jiangxi Educational Commission (No. GJJ14558), and the Project of Jiangxi Youth Scientist (No. 20122BCB23031).

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摘要： ZnSO4-Zn(CH3COO)2, Zn(NO3)2-Zn(CH3COO)2, ZnSO4-Zn(NO3)2, ZnSO4, Zn(NO3)2 or Zn(CH3COO)2 have been used as zinc sources to prepare ZnS thin films by chemical bath deposition and co-deposition methods. Zn(NO3)2 or/and Zn(CH3COO)2 is/are favorable for cluster by cluster deposition process while ZnSO4 favors ion by ion deposition process regardless of concentration ratios of ZnSO4. However, Zn(NO3)2 affects the nucleation density of ZnS nuclei on the substrate. ZnS thin films deposited from ZnSO4-Zn(CH3COO)2 are not only more homogeneous and compact, but also have higher growth rate and adhesion on to the glass substrate. The cubic ZnS films are obtained after only single deposition. The average transmission of films from S6, S7, S8, S9 and S1 for 2 and 2.5 h is greater than 85% in visible region. Compared with the film from S6 (112 nm), the film from S7 is not only thicker (125 nm), but also more transparent. The band gaps of the films deposited from S6, S7, S8, S9 and S1 for 2 and 2.5 h range from 3.88 to 3.98 eV. The effects of anions from different zinc salts are discussed in detail.

关键词: Thin film, Chemical synthesis, Electron microscopy, Mechanical properties, Optical properties

Abstract: ZnSO4-Zn(CH3COO)2, Zn(NO3)2-Zn(CH3COO)2, ZnSO4-Zn(NO3)2, ZnSO4, Zn(NO3)2 or Zn(CH3COO)2 have been used as zinc sources to prepare ZnS thin films by chemical bath deposition and co-deposition methods. Zn(NO3)2 or/and Zn(CH3COO)2 is/are favorable for cluster by cluster deposition process while ZnSO4 favors ion by ion deposition process regardless of concentration ratios of ZnSO4. However, Zn(NO3)2 affects the nucleation density of ZnS nuclei on the substrate. ZnS thin films deposited from ZnSO4-Zn(CH3COO)2 are not only more homogeneous and compact, but also have higher growth rate and adhesion on to the glass substrate. The cubic ZnS films are obtained after only single deposition. The average transmission of films from S6, S7, S8, S9 and S1 for 2 and 2.5 h is greater than 85% in visible region. Compared with the film from S6 (112 nm), the film from S7 is not only thicker (125 nm), but also more transparent. The band gaps of the films deposited from S6, S7, S8, S9 and S1 for 2 and 2.5 h range from 3.88 to 3.98 eV. The effects of anions from different zinc salts are discussed in detail.

Key words: Thin film, Chemical synthesis, Electron microscopy, Mechanical properties, Optical properties