– L Zhu, ZT Ma, PT Lai, and HW Choii IEEE Transactions on Electron Devices, vol. 58, 2, pp. 490-494 (2011) An InGaN/GaN light-emitting diode (LED)…
– XH Wang, JQ Ning, SJ Xu, and HW Choi Journal of Applied Physics, vol. 110, 9, pp. 093111 (2011) High crystal quality GaN nanopillar…
– 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…
– L Zhu, XH Wang, PT Lai, and HW Choi IEEE Photonics Technology Letters, vol. 22, 7, pp. 513-515 (2010) We report on white light-emitting diodes…
– 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…
– 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…
Close-packed hemiellipsoid arrays: A photonic band gap structure patterned by nanosphere lithography
– WY Fu, KKY Wong, and HW Choi Applied Physics Letters, vol. 95, 13, pp. 133125 (2009) A self-assembled hexagonal close-packed hemiellipsoidal photonic crystal structure…
– WY Fu, KN Hui, XH Wang, KKY Wong, PT Lai, and HW Choi IEEE Photonics Technology Letters, vol. 21, 15, pp. 1078-1080 (2009) Geometrical…
– WN Ng, CH Leung, PT Lai, and HW Choi Nanotechnology, vol. 19, 25, pp. 255302 (2008) Instead of using conventional electron lithography, a two-dimensional photonic crystal consisting of a hexagonal…