Title :
Design Simulation of Top ITO Gratings to Improve Light Transmission for Gallium Nitride LEDs
Author :
Jin, Xiaomin ; Trieu, Simeon ; Wang, Fei ; Zhang, Bei ; Dai, Tao ; Kang, Xiangning ; Zhang, Guoyi
Author_Institution :
Electr. Eng. Dept., California Polytech. State Univ., San Luis Obispo, AZ
Abstract :
We present simulation results of the indium tin oxide (ITO) top diffraction grating using a rigorous couple wave analysis (RCWA) for GaN LEDs. We study three different nano-structure patterns: cylindrical pillar grating, conical pillar grating, and cylindrical nano-hole grating. We show the light transmission improvement with nano-grating designs and present design-charts for the nano-hole grating.
Keywords :
coupled mode analysis; diffraction gratings; gallium compounds; indium compounds; light emitting diodes; light transmission; tin compounds; GaN; ITO; conical pillar grating; cylindrical nano-hole grating; cylindrical pillar grating; design-charts; gallium nitride LED; indium tin oxide; light transmission; nanostructure patterns; rigorous couple wave analysis; top diffraction grating; Analytical models; Diffraction gratings; Etching; Fabrication; Gallium nitride; III-V semiconductor materials; Indium tin oxide; Light emitting diodes; Optical coupling; Physics; GaN; LED; Nano-grating;
Conference_Titel :
Information Technology: New Generations, 2009. ITNG '09. Sixth International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-3770-2
Electronic_ISBN :
978-0-7695-3596-8
DOI :
10.1109/ITNG.2009.10
