Current spreading, heat transfer, and light extraction in multi-pixel LED array

被引:4
作者
Bogdanov, M. V. [2 ]
Bulashevich, K. A. [2 ,3 ]
Evstratov, I. Yu. [2 ]
Karpov, S. Yu. [1 ]
机构
[1] STR Inc, 10404 Patterson Ave,Suite 108, Richmond, VA 23238 USA
[2] Soft Impact Ltd, St Petersburg 194156, Russia
[3] RAS, Ioffe Phys Tech Inst, St Petersburg 194021, Russia
来源
PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 5, NO 6 | 2008年 / 5卷 / 06期
基金
俄罗斯基础研究基金会;
关键词
D O I
10.1002/pssc.200778415
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Using simulation, we have investigated into the current spreading, heat transfer, and light emission in a high-power light-emitting diode (LED) with an interdigitated. multipixel. array OMPA) chip design. The main advantages of such LEDs compared with conventional square-shaped ones, like a lower series resistance and a higher emission efficiency at high currents, are interpreted in terms of current spreading and local active region overheating originated from the current crowding typical for planar LED dice.
引用
收藏
页码:2070 / +
页数:2
相关论文
共 6 条
[1]   Current spreading and thermal effects in blue LED dice [J].
Bulashevich, K. A. ;
Evstratov, I. Yu. ;
Mymrin, V. F. ;
Karpov, S. Yu. .
PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 4, NO 1, 2007, 4 (01) :45-+
[2]   Interdigitated multipixel arrays for the fabrication of high-power light-emitting diodes with very low series resistances [J].
Chakraborty, A ;
Shen, L ;
Masui, H ;
DenBaars, SP ;
Mishra, UK .
APPLIED PHYSICS LETTERS, 2006, 88 (18)
[3]  
ELIASHEVICH I, 1999, P SOC PHOTO-OPT INS, V3621, P29
[4]   Current crowding effects on blue LED operation [J].
Evstratov, I. Yu. ;
Myrnrin, V. F. ;
Karpov, S. Yu. ;
Makarov, Yu. N. .
PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 6, 2006, 3 (06) :1645-1648
[5]   Current crowding and optical saturation effects in GaInN/GaN light-emitting diodes grown on insulating substrates [J].
Guo, X ;
Schubert, EF .
APPLIED PHYSICS LETTERS, 2001, 78 (21) :3337-3339
[6]   Modeling of a GaN-based light-emitting diode for uniform current spreading [J].
Kim, H ;
Lee, JM ;
Huh, C ;
Kim, SW ;
Kim, DJ ;
Park, SJ ;
Hwang, H .
APPLIED PHYSICS LETTERS, 2000, 77 (12) :1903-1904