NDLI: Investigation of Reverse Leakage Characteristics of InGaN/GaN Light-Emitting Diodes on Silicon

Content Provider	IEEE Xplore Digital Library
Author	Jaekyun Kim Jun-Youn Kim Youngjo Tak Joosung Kim Hyun-Gi Hong Moonseung Yang Suhee Chae Junghoon Park Youngsoo Park U-In Chung
Copyright Year	1980
Abstract	We investigate the reverse leakage characteristics of InGaN/GaN multiple-quantum-well light-emitting diodes (LEDs) grown on Si (111) substrate by metal-organic chemical vapor deposition. The reverse leakage characteristics of InGaN/GaN LED on silicon are measured as low as ~10 nA at -5 V and -10 μA at -15 V. Temperature-dependent current-voltage (I-V) measurements of LED devices reveal that the reverse leakage current mechanism is mainly attributed to the field-enhanced thermionic emission, also known as Poole-Frenkel emission, of carriers from deep centers within the space charge region up to ~ -18 V. The analysis of T-I -V curve yields the calculation of the coefficient of the Poole-Frenkel effect (1.12 × 10^-4 eV·V^-1/2·cm^1/2) and activation energies of carriers (~214 meV at -5 V). With further increase of reverse bias, up to -40 V, LED devices exhibit the onset of space-charge-limited leakage current mechanism without any local breakdown.
Sponsorship	IEEE Electron Devices Society
Starting Page	1741
Ending Page	1743
Page Count	3
File Size	288697
File Format	PDF
ISSN	07413106
Volume Number	33
Issue Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Light emitting diodes Gallium nitride Silicon Leakage current silicon GaN leakage current light-emitting diodes (LEDs)
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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