No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
Enhancing optical power of GaN-based light-emitting diodes by nanopatterning on indium tin oxide with tunable fill factor using multiple-exposure nanosphere-lens lithography
3. Y. C. Shin, D. H. Kim, E. H. Kim, J. Park, K. Ho, K. Constant, J. H. Choe, Q. H. Park, H. Ryu, J. H. Baek, T. Jung, and T. G. Kim, IEEE J. Quantum Electron. 46, 116 (2010).
4. V. C. Su, P. H. Chen, R. M. Lin, M. L. Lee, Y. H. You, C. Ho, Y. C. Chen, W. F. Chen, and C. Hsiung, Opt. Express 21, 30065 (2013).
6. Y. C. Shin, D. H. Kim, D. J. Chae, J. W. Yang, J. I. Shim, J. M. Park, K. Ho, K. Constant, H. Y. Ryu, and T. G. Kim, IEEE J. Quantum Electron. 46, 1375 (2010).
15. T. B. Wei, K. Wu, D. Lan, Q. F. Yan, Y. Chen, C. X. Du, J. X. Wang, Y. P. Zeng, and J. M. Li, Appl. Phys. Lett. 101, 211111 (2012).
16. T. B. Wei, X. L. Ji, K. Wu, H. Y. Zheng, C. X. Du, Y. Chen, Q. F. Yan, L. X. Zhao, Z. C. Zhou, J. X. Wang, and J. M. Li, Opt. Lett. 39, 379 (2014).
17. T. B. Wei, Z. Q. Huo, Y. H. Zhang, H. Y. Zheng, Y. Chen, J. K. Yang, Q. Hu, R. F. Duan, J. X. Wang, Y. P. Zeng, and J. M. Li, Opt. Express 22, A1093 (2014).
18. Y. Zhang, T. Wei, Z. Xiong, L. Shang, Y. Tian, Y. Zhao, P. Zhou, J. Wang, and J. Li, Appl. Phys. Lett. 105, 013108 (2014).
Article metrics loading...
In this study, the multiple-exposure nanosphere-lens lithography method utilizing the polystyrene nanospheres with focusing behavior is investigated and introduced to fabricate diverse photonic crystals (PCs) on indium tin oxide to enhance the optical output power of GaN-based light-emitting diode (LED). Simulated results indicate that the focused light intensity decreases with increasing tilted angle due to the shadow effect introduced by adjacent nanospheres. The fill factor of nanopattern is tunable by controlling tilted angles and exposure times. To attain quadruple PC without overlapping patterns, mathematical calculation model is used to define the optimum range of tilted angles. Angular emission patterns and three-dimensional finite-difference time domain simulated results indicate that the enhanced light extraction of PC LEDs results mainly from diffused scattering effects, and the diffraction effects of PC on light extracted efficiency increase with the increase of fill factor. Furthermore, it is confirmed that the multiple PC can extract more light from GaN into air than common PC with same period and fill factor.
Full text loading...
Most read this month