– HW Choi, KH Li, and YF Cheung Publication Date: 2020 Patent Office: US Patent Number: US 10,615,222 Methods of fabricating flexible, free-standing LED structures…
– YF Cheung, KH Li, and HW Choi ACS Applied Materials & Interfaces, vol. 8, 33, pp. 21440-21445 (2016) The majority of a GaN light-emitting…
– YF Cheung, KH Li, RSY Hui, and HW Choi Applied Physics Letters, vol. 105, 7, pp. 071104 (2014) Photonic crystals, in the form of…