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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 8 — Apr. 12, 2010
  • pp: 7664–7669

High performance InGaN/GaN nanorod light emitting diode arrays fabricated by nanosphere lithography and chemical mechanical polishing processes

Liang-Yi Chen, Ying-Yuan Huang, Chun-Hsiang Chang, Yu-Hsuan Sun, Yun-Wei Cheng, Min-Yung Ke, Cheng-Pin Chen, and JianJang Huang  »View Author Affiliations


Optics Express, Vol. 18, Issue 8, pp. 7664-7669 (2010)
http://dx.doi.org/10.1364/OE.18.007664


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Abstract

We fabricated InGaN/GaN nanorod light emitting diode (LED) arrays using nanosphere lithography for nanorod formation, PECVD (plasma enhanced chemical vapor deposition) grown SiO2 layer for sidewall passivation, and chemical mechanical polishing for uniform nanorod contact. The nano-device demonstrates a reverse current 4.77nA at −5V, an ideality factor 7.35, and an optical output intensity 6807mW/cm2 at the injection current density 32A/cm2 (20mA). Moreover, the investigation of the droop effect for such a nanorod LED array reveals that junction heating is responsible for the sharp decrease at the low current.

© 2010 OSA

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(220.4241) Optical design and fabrication : Nanostructure fabrication

ToC Category:
Optical Devices

History
Original Manuscript: January 25, 2010
Revised Manuscript: March 17, 2010
Manuscript Accepted: March 17, 2010
Published: March 29, 2010

Virtual Issues
Focus Issue: Solar Concentrators (2010) Optics Express

Citation
Liang-Yi Chen, Ying-Yuan Huang, Chun-Hsiang Chang, Yu-Hsuan Sun, Yun-Wei Cheng, Min-Yung Ke, Cheng-Pin Chen, and JianJang Huang, "High performance InGaN/GaN nanorod light emitting diode arrays fabricated by nanosphere lithography and chemical mechanical polishing processes," Opt. Express 18, 7664-7669 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-8-7664


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