Improvement of light output in GaN-based power chip light-emitting diodes with a nano-rough surface by nanoimprint lithography
Semiconductor Science and Technology, ISSN: 0268-1242, Vol: 23, Issue: 4
2008
- 6Citations
- 9Captures
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Article Description
The enhancement of light extraction of gallium nitride (GaN)-based power chip (PC) light-emitting diodes (LEDs) with a p-GaN rough surface by nanoimprint lithography (NIL) is presented. At a driving current of 350 mA and a chip size of 1 mm × 1 mm, the light output power of the PC LEDs with a p-GaN rough surface (etching depth from 130 to 150 nm) showed an enhancement of 24% on wafer when compared with the same device without NIL. Current-voltage results indicated an ohmic contact by the increase in the contact area of the nano-roughened surface at 200 mA. This paper offers a promising potential for enhancing the output powers of commercial LEDs. © 2008 IOP Publishing Ltd.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=42449094931&origin=inward; http://dx.doi.org/10.1088/0268-1242/23/4/045022; https://iopscience.iop.org/article/10.1088/0268-1242/23/4/045022; https://dx.doi.org/10.1088/0268-1242/23/4/045022; https://validate.perfdrive.com/fb803c746e9148689b3984a31fccd902/?ssa=fcaea885-c2e7-48dc-b9c0-b937ea861688&ssb=10383213881&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.1088%2F0268-1242%2F23%2F4%2F045022&ssi=998a913c-8427-4ed8-a9e5-b942e32c7f37&ssk=support@shieldsquare.com&ssm=97837911683784767352099602863087052&ssn=914215be955556b3c524f3403ebbadfac3822f0fbc69-9e01-4767-9a911b&sso=4b8f6809-259ac1c821e1163cc3028acf98a27d1e011b8dd99afda30e&ssp=70694500501721242261172132255707564&ssq=40659600772225985746536784031780032379361&ssr=NTIuMy4yMTcuMjU0&sst=com.plumanalytics&ssu=&ssv=&ssw=&ssx=eyJ1em14IjoiN2Y5MDAwYzRhOTI4MWEtNWZjMS00ZGYzLWI4NzYtYjk2N2Q4OTViOTI1Mi0xNzIxMjM2Nzg0NTAyNzA5MzgwODctMWI4ZGIyYzY0MDVkZjBlZDM1MjA5IiwiX191em1mIjoiN2Y2MDAwZDk2NmIwZDQtYjQ3Ny00MzJmLWJlNDMtMWUwNDYxMDE4MTc4MTcyMTIzNjc4NDUwMjcwOTM4MDg3LTJhNzI1ZWM1MWU1MmQ5ZmMzNTIwOSIsInJkIjoiaW9wLm9yZyJ9
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