– KH Li, YF Cheung, Q Zhang, and HW Choi IEEE Photonics Technology Letters, vol. 25, 4, pp. 374-377 (2013) Vertical thin-film light-emitting diodes (LEDs)…
– Q Zhang, KH Li, and HW Choi Applied Physics Letters, vol. 100, 6, pp. 061120 (2012) Close‐packed micro‐lenses with dimensions of the order of…
– KH Li, Z Ma, and HW Choi Applied Physics Letters, vol. 100, 14, pp. 141101 (2012) The fabrication of close-packed clover-shaped photonic crystal structure…
– XH Wang, JQ Ning, SJ Xu, and HW Choi Journal of Applied Physics, vol. 110, 9, pp. 093111 (2011) High crystal quality GaN nanopillar…
– GY Mak, EY Lam, and HW Choi Journal of Vacuum Science & Technology B, vol. 29, 1, pp. 011025 (2011) The fabrication and operation…
– KH Li, and HW Choi Journal of Applied Physics, vol. 110, 5, pp. 053104 (2011) Photonic crystal patterns on the indium tin oxide layer…
– KH Li, and HW Choi Journal of Applied Physics, vol. 109, 2, pp. 023107 (2011) We report on the fabrication of ordered hexagonal arrays…
– XH Wang, PT Lai, and HW Choi Journal of Applied Physics, vol. 108, 2, pp. 023110 (2010) The light extraction efficiencies of InGaN/GaN blue…
– ZL Li, KH Li, and HW Choi Journal of Applied Physics, vol. 108, 11, pp. 114511 (2010) While the enhancement of light extraction efficiency…
– XH Wang, WY Fu, PT Lai, and HW Choi Optics Express, vol. 17, 25, pp. 22311-22319 (2009) Blue GaN light emitting diodes (LEDs) in…