Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session P44: Electrons, Phonons, Electron Phonon Scattering, and Phononics III
2:30 PM–5:30 PM,
Wednesday, March 4, 2020
Room: 704
Sponsoring
Units:
DCOMP DMP
Chair: Olivier Delaire, Duke University
Abstract: P44.00011 : Optical absorption in gallium oxide*
Presenter:
Hartwin Peelaers
(Department of Physics and Astronomy, University of Kansas)
Authors:
Hartwin Peelaers
(Department of Physics and Astronomy, University of Kansas)
Chris Van de Walle
(Materials Department, University of California, Santa Barbara)
We performed a detailed first-principles study of these absorption processes in Ga2O3 [1,2], a material with promising applications in high-power devices and UV photodetectors. Our results elucidate the fundamental limitations of optical absorption in Ga2O3 and shed light on experimental observations.
[1] H. Peelaers and C.G. Van de Walle, Appl. Phys. Lett. 111, 182104 (2017).
[2] H. Peelaers and C.G. Van de Walle, Phys. Rev. B 100, 081202 (2019).
*Work supported by DOE and AFOSR.
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