A. Ghosh (US) University of Virginia
University of VirginiaAuthor Of 2 Presentations
(PSSI) Photodetectors, Sensors, Systems and Imaging
ThE1.3 - FIRST PRINCIPLES INVESTIGATION INTO GRAPHENE-PBSE MIDWAVE IR (MWIR) PHOTODETECTOR PHYSICS
Presentation Type
Contributed Submission
Authors
Date
10/03/2019
Time
08:30 AM - 09:45 AM
Room
La Vista A/B
Duration
15 Minutes
Lecture Time
09:15 AM - 09:30 AM
Abstract
Abstract
Using Density Functional Theory (DFT) based simulations we investigate new designs of PbSe-Graphene MWIR detector and their physics. These detectors have three possible distinct modes of operation depending on the interface design, and show promise for scalable, high operating temperature, low noise, CMOS integrable photodetectors.
(PSSI) Photodetectors, Sensors, Systems and Imaging
TuE1.2 - UNDERSTANDING THE ROLE OF MINIGAPS IN APDS: TOWARDS DESIGNING A BETTER PHOTODETECTOR
Presentation Type
Contributed Submission
Authors
Date
10/01/2019
Time
08:30 AM - 10:00 AM
Room
La Vista A/B
Duration
15 Minutes
Lecture Time
08:45 AM - 09:00 AM
Abstract
Abstract
Superior performance of digital alloy APDs is attributed to the formation of "minigaps" in the material bandstructure. However, no improvement is observed in dilute nitride APDs in presence of minigaps. We propose criteria which can judge the effectiveness of these minigaps.