Skip to main content
SpringerLink
Log in

Reduced photo-instability of luminescence spectrum of core-shell CdSe/CdS nanocrystals

  • Published:
Journal of Materials Science Aims and scope Submit manuscript

Abstract

Coated CdSe/CdS nanocrystals have been synthesized through a new reaction routine in micelle solution. High resolution transmission electron microscope image demonstrated the monodispersity and core-shell structure of CdSe/CdS nanocrystals. Photooxidation experiments shown that by coating with a wider bandgap material CdS, the surface states of CdSe cores could be decreased and the photo-instability of their luminescence spectrum could be reduced. This phenomena were temporary interpreted that lack of carriers at the outlayer surface reduced photooxidation degradation of CdSe/CdS nanocrystals.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Margaret A. Hines and Philippe Guyotsionnest, J. Phys. Chem. 100 (1996) 468.

    Google Scholar 

  2. X. G. Peng, M. C. Schlamp, A. V. Kadavanich, et al., J. Am. Chem. Soc. 119 (1997) 7019.

    Google Scholar 

  3. A. Hasselbarth, A. Eychmuller, R. Eichberger, M. Giersig, A. Mews and H. Weller, J. Phys. Chem. 97 (1993) 5333.

    Google Scholar 

  4. L. Xu, X. F. Huang, H. B. Huang, H. M. Chen, J. Xu and K. J. Chen, Jpn. J. Appl. Phys. 37 (1998) 3491.

    Google Scholar 

  5. R. L. Penn and J. F. Banfield, Science 281 (1998) 969.

    Google Scholar 

  6. L. Spanhel, M. Haase, H. Weller and A. Henglein, J. Am. Chem. Soc. 109 (1987) 5649.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. State Key Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, People's Republic of China

    Ling Xu

  2. State Key Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, People's Republic of China

    Xinfan Huang, Jianming Zhu, Hongming Chen & Kunji Chen

Authors
  1. Ling Xu
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Xinfan Huang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Jianming Zhu
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Hongming Chen
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Kunji Chen
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Xu, L., Huang, X., Zhu, J. et al. Reduced photo-instability of luminescence spectrum of core-shell CdSe/CdS nanocrystals. Journal of Materials Science 35, 1375–1378 (2000). https://doi.org/10.1023/A:1004786224687

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1004786224687

Keywords

Search

Navigation