Journal
NANOTECHNOLOGY
Volume 16, Issue 9, Pages 1844-1848Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/16/9/071
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This investigation describes the development of an InGaN/GaN light emitting diode (LED) with a nano-roughened top p-GaN surface using an Ni nano-mask and laser etching. The light output of the InGaN/GaN LED with a nano-roughened top p-GaN surface is 1.55 times that of a conventional LED, and the wall-plug efficiency is 68% higher at 20 mA. The series resistance of the InGaN/GaN LED was reduced by 32% by the increase in the contact area of the nano-roughened surface.
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