Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-25T15:49:31.775Z Has data issue: false hasContentIssue false
  • English
  • Français

Synthesis and Characterization of Electrostatical Self-Assembly CdSe/Polymer Nanocomposite Films

Published online by Cambridge University Press:  01 February 2011

Liangmin Zhang ,
Fajian Zhang  and
R. O. Claus
Liangmin Zhang
Affiliation:
Fiber & Electro-Optics Research Center, Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0356
Fajian Zhang
Affiliation:
Fiber & Electro-Optics Research Center, Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0356
R. O. Claus
Affiliation:
Fiber & Electro-Optics Research Center, Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0356
Get access

Abstract

Using a novel electrostatic self-assembly (ESA) method to incorporate CdSe quantum dots into polymer we have successfully synthesized ultrathin films. This method allows the molecular-level thickness control and layer-by-layer formation of multilayer thin and thick films using alternative anionic and cationic molecular solution dipping. From ellipsometric measurements, we obtained that the thickness of per bilayer is around 3.7 nm. UV-vis absorption spectra versus the number of bilayers have also been obtained using an Hitachi 2001 spectrometer. The size of CdSe quantum dots has been measured using transmission electron microscopy before the CdSe quantum dots are incorporated and confirmed using atomic force microscopy after the formation of the film, respectively. Both measurements indicate that the diameter of the CdSe quantum dots is 2-3 nm. Xray photoelectron spectroscopy indicates that the concentration of the CdSe quantum dots in the film is 2.14%.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 733: Symposium T – Polymer Nanocomposites , 2002 , T5.6
Copyright
Copyright © Materials Research Society 2002

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Alivisatos, A. P., J. Phys. Chem., 100, 13227–13238 (1996).10.1021/jp9535506Google Scholar
2. Artemyev, M. V. and Woggon, U., Appl. Phys. Lett. 76, 1353–13559(2000).10.1063/1.126029Google Scholar
3. Winiarz, J. G., Zhang, L., Lal, M., Friend, C. S., and Prasad, P. N., J. Am. Chem. Soc. 121, 5287–5295 (1999).10.1021/ja983559wGoogle Scholar
4. Murray, C. B., Norris, D. J., and Bawendi, M. G., J. Am. Chem. Soc. 101, 8706–8715 (1993).10.1021/ja00072a025Google Scholar
5. Dabbousi, B. O., Viejo, J. R., Mikulec, F. V., Heine, J. R., Mattoussi, H., Ober, R., Jensen, K. F., and Bawendi, M. G., J. Phys. Chem. B, 101, 9463–94579 (1997).10.1021/jp971091yGoogle Scholar
6. Prasad, P. N. and Williams, D. J., “Introduction to Nonlinear Optical Effects in Molecules and Polymers,” Wiley, New York, Chapter 11 (1991).Google Scholar
7. Shi, Y., Zhang, C., Zhang, H., Bechtel, J. H., Dalton, L. R., Robinson, B. H., Steier, W. H., Science, 288, 119–122 (2000).10.1126/science.288.5463.119Google Scholar
8. Chen, R. T. and Robinson, D., Appl. Phys. Lett. 60, 1541–1543 (1992).10.1063/1.107244Google Scholar
9. Williams, D. J., “Nonlinear Optical Properties of Organic Molecules and Crystals,” Ed. Chemla, D. S. and Zyss, J., Academic Press, Inc., Chapters II-7, (1987).Google Scholar
10. Decher, G., Science, 277, 1232 (1997).10.1126/science.277.5330.1232Google Scholar
11. Liu, Y. and Claus, R. O., J. Appl. Phys. 85, 419 (1999).10.1063/1.369401Google Scholar
12. Singer, K. D., Kuzyk, M. G., Holland, W. R., Sohn, J. E., Lalama, S. L., Comizzoli, R. B., Katz, H. E., and Schilling, M. L., Appl. Phys. Lett. 53, 1800–1802 (1988).10.1063/1.99785Google Scholar
13. Sigelle, M. and Hierle, R., J. Appl. Phys. 52, 4199–4204 (1981).10.1063/1.329269Google Scholar
14. Swedek, B., Cheng, N., Cui, Y., Zieba, J., Winiarz, J., and Prasad, P. N., J. Appl. Phys. 82, 5923–5930 (1997).10.1063/1.366493Google Scholar