Nano Archive

Enhanced light output from a nitride-based power chip of green light-emitting diodes with nano-rough surface using nanoimprint lithography

Huang, H. W. and Lin, C. H. and Yu, C. C. and Chiu, C. H. and Lai, C. F. and Kuo, H. C. and Leung, K. M. and Lu, T. C. and Wang, S. C. and Lee, B. D. (2008) Enhanced light output from a nitride-based power chip of green light-emitting diodes with nano-rough surface using nanoimprint lithography. NANOTECHNOLOGY, 19 (18).

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Official URL: http://dx.doi.org/10.1088/0957-4484/19/18/185301

Abstract

Enhanced light extraction from a GaN-based power chip (PC) of green light-emitting diodes (LEDs) with a rough p-GaN surface using nanoimprint lithography is presented. At a driving current of 350 mA and with a chip size of 1 mm x 1 mm packaged on transistor outline (TO)-cans, the light output power of the green PC LEDs with nano-rough p-GaN surface is enhanced by 48% when compared with the same device without a rough p-GaN surface. In addition, by examining the radiation patterns, the green PC LED with nano-rough p-GaN surface shows stronger light extraction with a wider view angle. These results offer promising potential to enhance the light output powers of commercial light-emitting devices by using the technique of nanoimprint lithography under suitable nanopattern design.

Item Type:Article
Subjects:Engineering > Nanotechnology applications in ICT
Physical Science > Photonics
ID Code:1882
Deposited By:Farnush Anwar
Deposited On:16 Dec 2008 11:10
Last Modified:16 Dec 2008 11:10

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