Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-29T08:22:06.021Z Has data issue: false hasContentIssue false
  • English
  • Français

Optical Characterization of Cadmium Telluride Doped Heterostructured Opaline Photonic Crystal

Published online by Cambridge University Press:  15 March 2011

V. G. Solovyev ,
S.G. Romanov ,
C.M. Sotomayor Torres ,
N. Gaponik ,
A. Eychmüller  and
A. L. Rogach
V. G. Solovyev
Affiliation:
Institute of Materials Science and Dept. of Electrical and Information Engineering, University of Wuppertal, Gauss-str. 20, 42097 Wuppertal, Germany
S.G. Romanov
Affiliation:
Institute of Materials Science and Dept. of Electrical and Information Engineering, University of Wuppertal, Gauss-str. 20, 42097 Wuppertal, Germany
C.M. Sotomayor Torres
Affiliation:
Institute of Materials Science and Dept. of Electrical and Information Engineering, University of Wuppertal, Gauss-str. 20, 42097 Wuppertal, Germany
N. Gaponik
Affiliation:
Institute of Physical Chemistry, University of Hamburg, Bundesstr. 45, 20146, Hamburg, Germany
A. Eychmüller
Affiliation:
Institute of Physical Chemistry, University of Hamburg, Bundesstr. 45, 20146, Hamburg, Germany
A. L. Rogach
Affiliation:
Institute of Physical Chemistry, University of Hamburg, Bundesstr. 45, 20146, Hamburg, Germany
Get access

Abstract

A double-layer photonic crystal (PhC) possessing incomplete photonic band gap (PBG) has been prepared by successive formation of one opaline film on top of another and subsequent impregnation with CdTe colloidal nanocrystals as the light source. Transmission, reflection and photoluminescence (PL) spectra of this nanocomposite have been measured from 1.8 to 2.5 eV at different angles of the light incidence and detection. The suppression of emission intensity has been found at both stop bands of the PhC heterostructure. Depending on the excitation power, either suppression or enhancement of the emission rate at the stop band has been observed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 708: Symposium BB – Organic Optoelectronic Materials, Processing and Devices , 2001 , K7.8
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

REFERENCES

1. Romanov, S.G., Yates, H.M., Pemble, M.E., Rue, R.M. De La, J. Phys.: Condens. Matter 12, 8221 (2000).Google Scholar
2. Jiang, P., Ostojic, G.N., Narat, R., Mittelman, D.M., Colvin, V.L., Adv. Materials 13, 389 (2001).Google Scholar
3. Romanov, S. G., Maka, T., Torres, C.M. Sotomayor, Müller, M., Zentel, R., in “Photonic Crystals and Light Localisation in the 21st Century”, NATO ASI series ed. Soukoulius, C.M., NATO Science Series C, v. 563, Kluwer, Dordrecht, 2001, pp.253–262.Google Scholar
4. Rogach, A. L., Katsikas, L., Kornowski, A., Su, D., Eychmüller, A., Weller, H., Synthesis and characterization of thiol-stabilized CdTe nanocrystals, Ber. Bunsenges. Phys. Chem., 100, 1772 (1996).Google Scholar
5. Romanov, S. G., Torres, C. M. Sotomayor, Gaponik, N., Eychmüller, A., Rogach, A. L., submitted to IEEE Quant. Electronics.Google Scholar