Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-17T18:21:52.824Z Has data issue: false hasContentIssue false
  • English
  • Français

Influence of Er and O doses in Er-related emission in Al0.70Ga0.30As:Er

Published online by Cambridge University Press:  21 March 2011

Shin-ichiro Uekusa  and
Tomoyuki Arai
Shin-ichiro Uekusa
Affiliation:
Department of Electrical and Engineering, Meiji University, 1-1-1 Higashi-mita, Tama-ku, Kawasaki, Kanagawa, Japan
Tomoyuki Arai
Affiliation:
Department of Electrical and Engineering, Meiji University, 1-1-1 Higashi-mita, Tama-ku, Kawasaki, Kanagawa, Japan
Get access

Abstract

Er ions with doses ranging from 1×1013 cm−2 to 1×1015 cm−2 were implanted into Al0.70Ga0.30As on GaAs substrates. at 800 °C. Photoluminescence (PL) intensity of Er-related emission around 1.54 μm was enhanced by co-implanted oxygen (O). The optimum dose of Er ion was 1×1014 cm−2 and O ion was 1×1015 cm−2, respectively. Furthermore, from the temperature dependence of the PL intensity of sample implanted with the optimum dose, we estimated the values of E1, E2, and E3, the activation energies in order to investigate the rapid thermal quenching of Er ion in Al0.70Ga0.30As. We found that PL intensity of Er-related emission, in addition to O dose, was enhanced approximately twenty two times at room temperature. And from the temperature dependence of the lifetime of the optimum dose of Er and O, the value 245meV of EA, the activation energy for the decrease of the lifetime, was nearly equal to the value 235meV of E3. Based on the result, the decrease of the lifetime confirms that the radiative efficiency is lower; therefore, we propose that rapid thermal quenching occurs at temperatures above 200 K due to the decrease of the radiative efficiency.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 692: Symposium H – Progress in Semiconductor Materials for Optoelectronic Applications , 2001 , H6.19.1
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] Katsumata, H., Uekusa, S., Majima, A., Kumagai, M., J. Appl. Phys. 77 1881. (1995)Google Scholar
[2] Katsumata, H., Uekusa, S., Sai, H., J. Appl. Phys. 80 2383. (1996)Google Scholar
[3] Majima, A., Uekusa, S., Abe, K., and Kumagai, M., J. Luminescence 60 and 61, 595 (1994)Google Scholar
[4] Uekusa, S., Uchiya, K., Wakutani, M., Nuclear Instruments and Method in Physics. Research B 148 pp.502–506 (1999)Google Scholar
[5] Uekusa, S., Wakutani, M., Saito, M., and Kumagai, M. Mat. Res. Soc. Symp. Vol.484 pp. 595–600 (1998)Google Scholar
[6] Wellmann, P., Winnacker, A., Matter. Res. Soc. Symp. Proc. 422 255 (1996)Google Scholar
[7] Taguchi, A., Takahei, K., J. Appl. Phys. 79 (8) 4330 (1996)Google Scholar
[8] Kimura, T., Ishida, H., Yugo, S., Saito, R., Isshiki, H., Ikoma, T., Matter. Soc. Symp. Proc. 301 (1993) 293.Google Scholar