Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session R10: WIMP Dark Matter IV
1:30 PM–3:18 PM,
Monday, April 15, 2019
Sheraton
Room: Governor's Square 12
Sponsoring
Unit:
DPF
Chair: Reina Maruyama, Yale University
Abstract: R10.00003 : Investigation of Amorphous Germanium Contact Properties with Planar Detectors Made from USD-Grown Germanium Crystals*
1:54 PM–2:06 PM
Presenter:
Wenzhao Wei
(University of South Dakota)
Authors:
Wenzhao Wei
(University of South Dakota)
Yangyang Li
(University of South Dakota)
Xianghua Meng
(University of South Dakota)
Jing Liu
(University of South Dakota)
Guojian Wang
(University of South Dakota)
Hao Mei
(University of South Dakota)
Gang Yang
(University of South Dakota)
Dongming Mei
(University of South Dakota)
Chao Zhang
(Mount Marty College)
Collaboration:
PIRE-GEMADARC
The characterization of detectors fabricated from home-grown crystals is the most direct way to study crystal properties. We fabricated planar detectors from high-purity germanium (HPGe) crystals grown at the University of South Dakota (USD). In the fabrication process, a HPGe crystal slice cut from a USD-grown crystal was coated with a high resistivity thin film of amorphous Ge (a-Ge) followed by depositing a thin layer of aluminum on top of the a-Ge film to define the physical area of the contacts. We investigated the detector performance including the I-V characteristics, C-V characteristics and spectroscopy measurements for a few detectors. The results document the good quality of the USD-grown crystals and electrical contacts. This work is supported by NSF OISE-1743790 and NSF PHY-1902577.
*This work is supported by NSF OISE-1743790 and NSF PHY-1902577.
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