Two channels of non-radiative recombination in InGaN/GaN LEDs

被引:18
作者
Averkiev, N. S. [1 ]
Chernyakov, A. E. [1 ]
Levinshtein, M. E. [1 ]
Petrov, P. V. [1 ]
Yakimov, E. B. [2 ]
Shmidt, N. M. [1 ]
Shabunina, E. I. [1 ]
机构
[1] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia
[2] RAS, Inst Microelect Technol, Chernogolovka 142432, Russia
基金
俄罗斯基础研究基金会;
关键词
Point defects; Extended defect systems;
D O I
10.1016/j.physb.2009.08.252
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The results of low-frequency noise study in blue InGaN/GaN light emitting diodes (LEDs) allow to suppose that there are two non-radiative recombination channels in InGaN/GaN LEDs: one of them is related to the extended defect system piercing the LED active region and other is related with the presence of point defects. The generation of new defects under current density more than 10 A/cm(2) was found. This process is reversible up to operation current density of about 200 A/cm(2). (C) 2009 Elsevier By. All rights reserved.
引用
收藏
页码:4896 / 4898
页数:3
相关论文
共 8 条
[1]   Low-frequency noise sources in as-prepared and aged GaN-based light-emitting diodes [J].
Bychikhin, S ;
Pogany, D ;
Vandamme, LKJ ;
Meneghesso, G ;
Zanoni, E .
JOURNAL OF APPLIED PHYSICS, 2005, 97 (12)
[2]   Nonradiative recombination dynamics in InGaN/GaN LED defect system [J].
Chernyakov, A. E. ;
Sobolev, M. M. ;
Ratnikov, V. V. ;
Shmidt, N. M. ;
Yakimov, E. B. .
SUPERLATTICES AND MICROSTRUCTURES, 2009, 45 (4-5) :301-307
[3]   Emission mechanisms of bulk GaN and InGaN quantum wells prepared by lateral epitaxial overgrowth [J].
Chichibu, SF ;
Marchand, H ;
Minsky, MS ;
Keller, S ;
Fini, PT ;
Ibbetson, JP ;
Fleischer, SB ;
Speck, JS ;
Bowers, JE ;
Hu, E ;
Mishra, UK ;
DenBaars, SP ;
Deguchi, T ;
Soto, T ;
Nakamura, S .
APPLIED PHYSICS LETTERS, 1999, 74 (10) :1460-1462
[4]  
Iwaya M, 2001, PHYS STATUS SOLIDI A, V188, P117, DOI 10.1002/1521-396X(200111)188:1<117::AID-PSSA117>3.0.CO
[5]  
2-X
[6]   Secondary electron emission from magnesium oxide on multiwalled carbon nanotubes [J].
Kim, WS ;
Yi, W ;
Yu, S ;
Heo, J ;
Jeong, T ;
Lee, J ;
Lee, CS ;
Kim, JM ;
Jeong, HJ ;
Shin, YM ;
Lee, YH .
APPLIED PHYSICS LETTERS, 2002, 81 (06) :1098-1100
[7]   Current and optical noise of GaN/AlGaN light emitting diodes [J].
Sawyer, S. ;
Rumyantsev, S. L. ;
Shur, M. S. ;
Pala, N. ;
Bilenko, Yu. ;
Zhang, J. P. ;
Hu, X. ;
Lunev, A. ;
Deng, J. ;
Gaska, R. .
JOURNAL OF APPLIED PHYSICS, 2006, 100 (03)
[8]  
Zhigalsky G. P., 2003, UFN, V173, P465, DOI [10.3367/UFNr.0173.200305a.0465, DOI 10.3367/UFNR.0173.200305A.0465]