Joo Won Choi

Enhanced overall efficiency of GaInN-based light-emitting diodes with reduced efficiency droop by Al-composition-graded AlGaN/GaN superlattice electron blocking layer

Jun Hyuk Park, Dong Yeong Kim, Sun-Yong Hwang et al. · Applied Physics Letters · 2013 · 67 citations · Full text

Reduced Efficiency Droop, Wide-bandgap Semiconductor, Electrical Engineering +13

Simulation of low carbon steel solidification and mold flux crystallization in continuous casting using a multi-mold simulator

Eun-Yi Ko, Joo Won Choi, Jun-Yong Park et al. · Metals and Materials International · 2014 · 47 citations

Engineering, Multi-mold Simulator, Casting +10

Structural parameters and oxygen ion conductivity of Y2O3–ZrO2 and MgO–ZrO2 at high temperature

Sang-Hyeon Yoon, Taimin Noh, Wook Kim et al. · Ceramics International · 2013 · 45 citations

Materials Science, Materials Engineering, Solid-state Ionic +7

Origin of electrons emitted into vacuum from InGaN light emitting diodes

Justin Iveland, Marco Piccardo, Lucio Martinelli et al. · Applied Physics Letters · 2014 · 44 citations · Full text

Engineering, Optoelectronic Devices, Electron Optic +19

Semipolar (202¯1) GaN and InGaN quantum wells on sapphire substrates

Benjamin Leung, Dili Wang, Yu-Sheng Kuo et al. · Applied Physics Letters · 2014 · 34 citations

Wide-bandgap Semiconductor, Engineering, Optoelectronic Devices +17