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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 9 — Apr. 23, 2012
  • pp: 9999–10003

High performance of InGaN light-emitting diodes by air-gap/GaN distributed Bragg reflectors

Jae Hyoung Ryu, Hee Yun Kim, Hyun Kyu Kim, Yashpal Singh Katharria, Nam Han, Ji Hye Kang, Young Jae Park, Min Han, Beo Deul Ryu, Kang Bok Ko, Eun-Kyoung Suh, and Chang-Hee Hong  »View Author Affiliations


Optics Express, Vol. 20, Issue 9, pp. 9999-10003 (2012)
http://dx.doi.org/10.1364/OE.20.009999


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Abstract

The effect of air-gap/GaN DBR structure, fabricated by selective lateral wet-etching, on InGaN light-emitting diodes (LEDs) is investigated. The air-gap/GaN DBR structures in LED acts as a light reflector, and thereby improve the light output power due to the redirection of light into escape cones on both front and back sides of the LED. At an injection current of 20 mA, the enhancement in the radiometric power as high as 1.91 times as compared to a conventional LED having no DBR structure and a far-field angle as low as 128.2° are realized with air-gap/GaN DBR structures.

© 2012 OSA

OCIS Codes
(230.1480) Optical devices : Bragg reflectors
(250.0250) Optoelectronics : Optoelectronics

ToC Category:
Optical Devices

History
Original Manuscript: January 5, 2012
Revised Manuscript: March 14, 2012
Manuscript Accepted: March 28, 2012
Published: April 17, 2012

Citation
Jae Hyoung Ryu, Hee Yun Kim, Hyun Kyu Kim, Yashpal Singh Katharria, Nam Han, Ji Hye Kang, Young Jae Park, Min Han, Beo Deul Ryu, Kang Bok Ko, Eun-Kyoung Suh, and Chang-Hee Hong, "High performance of InGaN light-emitting diodes by air-gap/GaN distributed Bragg reflectors," Opt. Express 20, 9999-10003 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-9-9999


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References

  1. S. Nakamura and G. Fasol, The Blue Laser Diode (Springer, 1997).
  2. M. Arita, M. Nishioka, and Y. Arakawa, “InGaN vertical microcavity LEDs with a Si-doped AlGaN/GaN distributed Bragg reflector,” Phys. Status Solidi A194(2), 403–406 (2002). [CrossRef]
  3. D. Byrne, F. Natali, B. Damilano, A. Dussaigne, N. Grandjean, and J. Massies, “Blue resonant cavity light emitting diodes with a high-Al-content GaN/AlGaN distributed Bragg reflector,” Jpn. J. Appl. Phys.42(Part 2, No. 12B), L1509–L1511 (2003). [CrossRef]
  4. S.-Y. Huang, R.-H. Horng, W.-K. Wang, and D.-S. Wuu, “GaN-based green resonant cavity light-emitting diodes,” Jpn. J. Appl. Phys.45(4B), 3433–3435 (2006). [CrossRef]
  5. A. Altoukhov, J. Levrat, E. Feltin, J.-F. Carlin, A. Castiglia, R. Butté, and N. Grandjean, “High reflectivity air-gap distributed Bragg reflectors realized by wet etching of AlInN sacrificial layers,” Appl. Phys. Lett.95(19), 191102 (2009). [CrossRef]
  6. R. Sharma, Y.-S. Choi, C.-F. Wang, A. David, C. Weisbuch, S. Nakamura, and E. L. Hu, “Gallium-nitride-based microcavity light-emitting diodes with air-gap distributed Bragg reflectors,” Appl. Phys. Lett.91(21), 211108 (2007). [CrossRef]
  7. B. Zhang, Z. S. Zhang, J. Xu, Q. Ren, C. L. Jin, Z. J. Yang, Q. Wang, W. H. Chen, X. D. Hu, T. J. Yu, Z. X. Qin, G. Y. Zhang, D. P. Yu, and B. P. Zhang, “Effects of the artificial Ga-nitride/air periodic nanostructures on current injected GaN-based light emitters,” Phys. Status Solidi C2(7), 2858–2861 (2005). [CrossRef]
  8. R. Sharma, E. D. Haberer, C. Meier, E. L. Hu, and S. Nakamura, “Vertically oriented GaN-based air-gap distributed Bragg reflector structure fabricated using band-gap-selective photoelectrochemical etching,” Appl. Phys. Lett.87(5), 051107 (2005). [CrossRef]
  9. M. A. Mastro, J. D. Caldwell, R. T. Holm, R. L. Henry, and C. R. Eddy., “Design of gallium nitride resonant cavity light-emitting diodes on Si substrates,” Adv. Mater. (Deerfield Beach Fla.)20(1), 115–118 (2008). [CrossRef]
  10. H. A. McLeod, Thin-Film Optical Filters (McGraw-Hill, 1989).
  11. H. G. Kim, T. V. Cuong, H. Jeong, S. H. Woo, O. H. Cha, E.-K. Suh, C.-H. Hong, H. K. Cho, B. H. Kong, and M. S. Jeong, “Spatial distributed of crown shaped light emission from a periodic inverted polygonal deflector embedded in an InGaN/GaN light emitting diode,” Appl. Phys. Lett.92(6), 061118 (2008). [CrossRef]

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