OSA's Digital Library

Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 16 — Aug. 15, 2013
  • pp: 3158–3161

Numerical study of the suppressed efficiency droop in blue InGaN LEDs with polarization-matched configuration

Jih-Yuan Chang, Fang-Ming Chen, Yen-Kuang Kuo, Ya-Hsuan Shih, Jinn-Kong Sheu, Wei-Chih Lai, and Heng Liu  »View Author Affiliations

Optics Letters, Vol. 38, Issue 16, pp. 3158-3161 (2013)

View Full Text Article

Enhanced HTML    Acrobat PDF (678 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



In blue InGaN light-emitting diodes (LEDs), the intuitive approaches to suppress Auger recombination by reducing carrier density, e.g., increasing the number of quantum wells (QWs) and thickening the width of wells, suffer from nonuniform carrier distribution and more severe spatial separation of electron and hole wave functions. To resolve this issue, LED structures with thick InGaN wells and polarization-matched AlGaInN barriers are proposed theoretically. Furthermore, the number of QWs is reduced for the purpose of mitigating the additional compressive strain in AlGaInN barriers. Simulation results reveal that, in the proposed structures, the quantum-confined Stark effect in strained wells is nearly eliminated through the utilization of polarization-matched barriers, which efficiently promotes internal quantum efficiency. Furthermore, the phenomenon of efficiency droop is also markedly improved because of the uniformly distributed or dispersed carriers, and accordingly the suppressed Auger recombination.

© 2013 Optical Society of America

OCIS Codes
(230.0250) Optical devices : Optoelectronics
(230.3670) Optical devices : Light-emitting diodes
(230.5590) Optical devices : Quantum-well, -wire and -dot devices

ToC Category:
Optical Devices

Original Manuscript: June 10, 2013
Revised Manuscript: July 14, 2013
Manuscript Accepted: July 19, 2013
Published: August 14, 2013

Jih-Yuan Chang, Fang-Ming Chen, Yen-Kuang Kuo, Ya-Hsuan Shih, Jinn-Kong Sheu, Wei-Chih Lai, and Heng Liu, "Numerical study of the suppressed efficiency droop in blue InGaN LEDs with polarization-matched configuration," Opt. Lett. 38, 3158-3161 (2013)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. B. Monemar and B. E. Sernelius, Appl. Phys. Lett. 91, 181103 (2007). [CrossRef]
  2. Y. C. Shen, G. O. Mueller, S. Watanabe, N. F. Gardner, A. Munkholm, and M. R. Krames, Appl. Phys. Lett. 91, 141101 (2007). [CrossRef]
  3. I. V. Rozhansky and D. A. Zakheim, Semiconductors 40, 839 (2006). [CrossRef]
  4. J.-I. Shim, D.-P. Han, H. Kim, D.-S. Shin, G.-B. Lin, D. S. Meyaard, Q. Shan, J. Cho, E. F. Schubert, H. Shim, and C. Sone, Appl. Phys. Lett. 100, 111106 (2012). [CrossRef]
  5. M. H. Kim, M. F. Schubert, Q. Dai, J. K. Kim, E. F. Schubert, J. Piprek, and Y. Park, Appl. Phys. Lett. 91, 183507 (2007). [CrossRef]
  6. J. Hader, J. V. Moloney, B. Pasenow, S. W. Koch, M. Sabathil, N. Linder, and S. Lutgen, Appl. Phys. Lett. 92, 261103 (2008). [CrossRef]
  7. M. Meneghini, N. Trivellin, G. Meneghesso, E. Zanoni, U. Zehnder, and B. Hahn, J. Appl. Phys. 106, 114508 (2009). [CrossRef]
  8. M. Zhang, P. Bhattacharya, J. Singh, and J. Hinckley, Appl. Phys. Lett. 95, 201108 (2009). [CrossRef]
  9. A. David and M. J. Grundmann, Appl. Phys. Lett. 96, 103504 (2010). [CrossRef]
  10. M. Brendel, A. Kruse, H. Jönen, L. Hoffmann, H. Bremers, U. Rossow, and A. Hangleiter, Appl. Phys. Lett. 99, 031106 (2011). [CrossRef]
  11. E. Kioupakis, P. Rinke, K. T. Delaney, and C. G. Van de Walle, Appl. Phys. Lett. 98, 161107 (2011). [CrossRef]
  12. Crosslight Software Inc., APSYS, http://www.crosslight.com .
  13. J. Piprek, Phys. Status Solidi A 207, 2217 (2010). [CrossRef]
  14. J. Piprek and Z. M. Simon Li, Appl. Phys. Lett. 102, 023510 (2013). [CrossRef]
  15. Y.-K. Kuo, Y.-H. Shih, M.-C. Tsai, and J.-Y. Chang, IEEE Photon. Technol. Lett. 23, 1630 (2011). [CrossRef]
  16. V. Fiorentini, F. Bernardini, and O. Ambacher, Appl. Phys. Lett. 80, 1204 (2002). [CrossRef]
  17. F. Renner, P. Kiesel, G. H. Döhler, M. Kneissl, C. G. Van de Walle, and N. M. Johnson, Appl. Phys. Lett. 81, 490 (2002). [CrossRef]
  18. H. Zhang, E. J. Miller, E. T. Yu, C. Poblenz, and J. S. Speck, Appl. Phys. Lett. 84, 4644 (2004). [CrossRef]
  19. A. David, M. J. Grundmann, J. F. Kaeding, N. F. Gardner, T. G. Mihopoulos, M. R. Krames, T. G. Mihopoulos, and M. R. Krames, Appl. Phys. Lett. 92, 053502 (2008). [CrossRef]
  20. N. F. Gardner, G. O. Mueller, Y. C. Shen, G. Chen, S. Watanabe, W. Goetz, and M. R. Krames, Appl. Phys. Lett. 91, 243506 (2007). [CrossRef]
  21. J.-Y. Chang and Y.-K. Kuo, Opt. Lett. 37, 1574 (2012). [CrossRef]
  22. A. Dadgar, L. Groh, S. Metzner, S. Neugebauer, J. Bläsing, T. Hempel, F. Bertram, J. Christen, A. Krost, Z. Andreev, and B. Witzigmann, Appl. Phys. Lett. 102, 062110 (2013). [CrossRef]
  23. M. F. Schubert, J. Xu, J. K. Kim, E. F. Schubert, M. H. Kim, S. Yoon, S. M. Lee, C. Sone, T. Sakong, and Y. Park, Appl. Phys. Lett. 93, 041102 (2008). [CrossRef]
  24. J. P. Liu, J.-H. Ryou, R. D. Dupuis, J. Han, G. D. Shen, and H. B. Wang, Appl. Phys. Lett. 93, 021102 (2008). [CrossRef]
  25. Y. Zhao, S. Tanaka, C.-C. Pan, K. Fujito, D. Feezell, J. S. Speck, S. P. Den Baars, and S. Nakamura, Appl. Phys. Express 4, 082104 (2011). [CrossRef]
  26. C.-C. Pan, S. Tanaka, F. Wu, Y. Zhao, J. S. Speck, S. Nakamura, S. P. Den Baars, and D. Feezell, Appl. Phys. Express 5, 062103 (2012). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited