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RETRACTED ARTICLE: Cu2ZnSnSe4 quantum dots with controllable size and quantum confinement effect

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This article was retracted on 01 December 2013

Abstract

Cu2ZnSnSe4 quantum dots (QDs) with controllable sizes have been synthesized via a hot-injection method. The diameters of the QDs range from 3.2 to 10.1 nm with the tunable band gap from 1.27 to 1.54 eV by adjusting the reaction temperatures from 180 to 240 °C. Structural and Raman scattering data confirm that Cu2ZnSnSe4 is obtained without other secondary phases. The band gaps of the QDs with diameters less than 4.6 nm show an obvious blue shift to higher energy due to quantum confinement effect. It indicates that the Cu2ZnSnSe4 QDs can be a potential candidate for quantum-dot-sensitized solar cells in the future.

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Acknowledgments

The authors would like to acknowledge the financial support from the Natural Science Foundation of Beijing (No. 2122005), Tianjin City Application Foundation and Advanced Technology Research Program (12JCZDJC21700).

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Authors and Affiliations

  1. The College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, People’s Republic of China

    Kai Zong, SiHeng Lu, Hao Wang, YuXiu Sun, JingBing Liu & Hui Yan

  2. Tianjin Key Laboratory of Structure and Performance for Functional Molecule, College of Chemistry, Tianjin Normal University, Tianjin, 300387, People’s Republic of China

    YuXiu Sun

  3. Chengdu Green Energy and Green Manufacturing Technology R&D Centre, Shuangliu, Chengdu, 610207, People’s Republic of China

    Hao Wang & Hui Yan

Authors
  1. Kai Zong
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  2. SiHeng Lu
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  3. Hao Wang
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  4. YuXiu Sun
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  5. JingBing Liu
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  6. Hui Yan
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Corresponding author

Correspondence to Hao Wang.

Additional information

This article has been retracted at the request of the authors. The reason for this request is that the UV-vis absorption results shown in Figure 4 have been fabricated. The authors present their apologies to the readers and editors.

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Zong, K., Lu, S., Wang, H. et al. RETRACTED ARTICLE: Cu2ZnSnSe4 quantum dots with controllable size and quantum confinement effect. J Nanopart Res 15, 1947 (2013). https://doi.org/10.1007/s11051-013-1947-0

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  • DOI: https://doi.org/10.1007/s11051-013-1947-0

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