Share Email Print
cover

Proceedings Paper

Influence of Cd diffusion on the structure and photoluminescence of CdSe/ZnSe multiple quantum wells
Author(s): Yuxue Liu; De Zen Shen; Yichun Liu; Jiying Zhang; Xianggui Kong; Xiwu Fan
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

In this paper, we have fabricated a 20 period CdSe/ZnSe MQW's on (001) orientated GaAs grown by metalorganic chemical vapor deposition under se-rich condition at the growth temperature of 500 degree(s)C. CdSe/ZnSe MQW's structure was characterized by means of x-ray diffraction and Raman scattering. These experimental results indicated the formation of new Cd1-xZnxSe layers and the existence of Cd and Zn vacancies in CdSe/ZnSe MQW's. The photoluminescence spectra of CdSe/ZnSe MQW's at low temperature was composed of a very strong and narrow band A at 2.4 eV and a weak and broadened band B at 2 eV. In order to understand the influence of Cd diffusion on the structure and photoluminescence (PL) of CdSe/ZnSe multiple quantum wells (MQW's), a new model of Cd diffusion in CdSe/ZnSe MQW's was given. Based on the simulation of Cd diffusion in CdSe/ZnSe MQW's and the calculation of the envelop-function approximation, the origin of PL of CdSe/ZnSe MQW's was discussed.

Paper Details

Date Published: 29 November 2000
PDF: 4 pages
Proc. SPIE 4086, Fourth International Conference on Thin Film Physics and Applications, (29 November 2000); doi: 10.1117/12.408424
Show Author Affiliations
Yuxue Liu, Changchun Institute of Optics and Fine Mechanics (China)
De Zen Shen, Changchun Institute of Optics and Fine Mechanics (China)
Yichun Liu, Changchun Institute of Optics and Fine Mechanics (China)
Jiying Zhang, Changchun Institute of Optics and Fine Mechanics (China)
Xianggui Kong, Changchun Institute of Optics and Fine Mechanics (China)
Xiwu Fan, Changchun Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 4086:
Fourth International Conference on Thin Film Physics and Applications
Junhao Chu; Pulin Liu; Yong Chang, Editor(s)

© SPIE. Terms of Use
Back to Top