期刊
JOURNAL OF APPLIED PHYSICS
卷 128, 期 8, 页码 -出版社
AIP Publishing
DOI: 10.1063/5.0017742
关键词
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资金
- NATO [G5453]
- National Science Foundation (NSF) (UCF Award) [ECCS1802208]
- US-Israel BSF [2018010]
- Department of Defense, Defense Threat Reduction Agency [HDTRA1-17-1-011]
- NSF DMR [1856662]
- Division Of Behavioral and Cognitive Sci
- Direct For Social, Behav & Economic Scie [2018010] Funding Source: National Science Foundation
The impact of electron injection on minority carrier (hole) diffusion length and lifetime at variable temperatures was studied using electron beam-induced current, continuous, and time-resolved cathodoluminescence techniques. The hole diffusion length increased from 306nm to 347nm with an electron injection charge density up to 117.5nC/mu m(3), corresponding to the lifetime changing from 77ps to 101ps. Elongation of the diffusion length was attributed to the increase in the non-equilibrium carrier lifetime, which was determined using ultrafast time-resolved cathodoluminescence and related to non-equilibrium carrier trapping on gallium vacancy levels in the GaN forbidden gap.
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