Version 1
: Received: 8 February 2024 / Approved: 9 February 2024 / Online: 9 February 2024 (11:27:34 CET)
How to cite:
Dai, P.; Yang, W.; Zhu, J.; Lu, S. The optical properties of 325 nm AlGaN grown by MBE. Preprints2024, 2024020577. https://doi.org/10.20944/preprints202402.0577.v1
Dai, P.; Yang, W.; Zhu, J.; Lu, S. The optical properties of 325 nm AlGaN grown by MBE. Preprints 2024, 2024020577. https://doi.org/10.20944/preprints202402.0577.v1
Dai, P.; Yang, W.; Zhu, J.; Lu, S. The optical properties of 325 nm AlGaN grown by MBE. Preprints2024, 2024020577. https://doi.org/10.20944/preprints202402.0577.v1
APA Style
Dai, P., Yang, W., Zhu, J., & Lu, S. (2024). The optical properties of 325 nm AlGaN grown by MBE. Preprints. https://doi.org/10.20944/preprints202402.0577.v1
Chicago/Turabian Style
Dai, P., Jianjun Zhu and Shulong Lu. 2024 "The optical properties of 325 nm AlGaN grown by MBE" Preprints. https://doi.org/10.20944/preprints202402.0577.v1
Abstract
The influence of growth temperature on the crystalline quality and optical properties of AlGaN at 325 nm, grown using plasma-assisted molecular beam epitaxy (MBE), was investigated. The growth temperature exhibited a significant impact on the growth mode and surface morphology. Specifically, at a growth temperature of 750 degrees Celsius, when appropriate Al and Ga flow rates were employed, the AlGaN layer exhibited exceptional surface morphology and favorable optical properties. The optical properties of the AlGaN material were explored, revealing the presence of two distinct non-radiative recombination centers characterized by different activation energies. The minority carrier lifetimes were measured as 560 ps at 10 K and 64 ps at room temperature. The underlying mechanism was analyzed from the perspective of carrier dynamics, shedding light on the observed phenomena.
Keywords
AlGaN; MBE; Optical Properties
Subject
Physical Sciences, Optics and Photonics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
