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Preparation, structural and optical properties of ZnWO4 and CdWO4 nanofilms

Journal of Materials Science volume 42, pages 4887–4891 (2007)Cite this article

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Abstract

For the first time, a novel route for preparing AWO4 (A=Zn, Cd) nanofilm on a glass substrate is proposed through the combination of reverse micelle system with dip-coating technology. Here collodion is used as a dispersant and film-forming agent to obtain nanofilm with a good quality and property. SEM and XRD results indicate ZnWO4 and CdWO4 nanoparticles with monoclinic system and wolframite structure are well dispersed on the substrate. The nanofilm’s photoluminescent(PL) bands obviously blue shift compared with bulk materials whereas red shift compared with nanoparticles, which should be due to quantum size effect and film-forming effect. FTIR absorption bands between 400 and 900 cm−1 prove the presence of ZnWO4 or CdWO4 nanoparticles on the substrate.

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Acknowledgements

The work is supported by National Natural Science Foundation of China (Nos: 20471042 and 20571051), the Foundation of Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials (No.2005KF02) and Nano-Foundation of Shanghai in China (Nos: 0652nm007, 0552nm048).

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Authors and Affiliations

  1. Department of Chemistry, Tongji University, No. 1239 Siping Road, 200092, Shanghai, P.R. China

    Runping Jia, Qingsheng Wu & Guoxin Zhang

  2. Department of Chemistry, Shanghai University, 200444, Shanghai, P.R. China

    Yaping Ding

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  1. Runping Jia
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  2. Qingsheng Wu
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  3. Guoxin Zhang
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  4. Yaping Ding
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Correspondence to Qingsheng Wu.

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Jia, R., Wu, Q., Zhang, G. et al. Preparation, structural and optical properties of ZnWO4 and CdWO4 nanofilms. J Mater Sci 42, 4887–4891 (2007). https://doi.org/10.1007/s10853-006-0677-4

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  • DOI: https://doi.org/10.1007/s10853-006-0677-4

Keywords

  • Quantum Size Effect
  • Sodium Tungstate
  • Collodion
  • CdWO4
  • Reverse Micelle System