Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session M34: Photodetectors and Optical Emitters
8:00 AM–10:48 AM,
Wednesday, March 8, 2023
Room: Room 226/227
Sponsoring
Unit:
FIAP
Chair: Jay Mathews, University of Dayton
Abstract: M34.00007 : Spectral Optical Responsivity of GeSn PIN Diodes: Experiment and Theory*
9:12 AM–9:24 AM
Presenter:
Matthew A Mircovich
(Arizona State University)
Authors:
Matthew A Mircovich
(Arizona State University)
Jose Menendez
(Arizona State University)
John Kouvetakis
(Arizona State University)
Dhruve Ringwala
(Arizona State University)
Aixin Zhang
(Arizona State University)
Chi Xu
(Arizona State University)
The accuracy and precision of the model made it possible to investigate the main obstacles that prevent the responsivity from attaining its maximum possible values. It is found that residual background doping in the intrinsic layer is by far the main factor limiting responsivity. A systematic study was carried out to identify the structures, thicknesses, and doping levels that maximize responsivity for different Sn concentrations.
*Supported by the National Science Foundation DMREF program under grant DMR-2119583
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