Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session K11: Defects in Semiconductors -- Wide Band Gap
8:00 AM–11:00 AM,
Wednesday, March 6, 2019
BCEC
Room: 152
Sponsoring
Units:
DMP DCOMP FIAP
Chair: Anderson Janotti, University of Delaware
Abstract: K11.00012 : Photoluminescence quantum efficiency of Nd optical centers in GaN epilayers
10:36 AM–10:48 AM
Presenter:
Yifei Wang
(Department of Physics and Center for Soft Matter and Biological Physics, Virginia Tech)
Authors:
Yifei Wang
(Department of Physics and Center for Soft Matter and Biological Physics, Virginia Tech)
Ho Vinh
(Department of Physics and Center for Soft Matter and Biological Physics, Virginia Tech)
Vinh Q Nguyen
(Department of Physics and Center for Soft Matter and Biological Physics, Virginia Tech)
We report the photoluminescence quantum efficiency of Nd optical centers as well as the thermal quenching mechanism in GaN epilayers prepared by plasma-assisted molecular beam epitaxy. High resolution infrared spectroscopy, quantum yield and temperature dependence measurements of photoluminescence intensity from Er ions in GaN under resonant and non-resonant excitations were performed. The data provide a picture of the thermal quenching processes and activation energy levels of Nd optical centers in GaN epilayers. The results provide an important step in the realization of GaN:Nd epilayers as an optical gain medium at the infrared region.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700