Comparison of triangular and squared ITO nano-grating of GaN LEDs

Ashli Behill; Tattiana K. C. Davenport; Xiaomin Jin

doi:10.1117/12.2061123

28 August 2014 Comparison of triangular and squared ITO nano-grating of GaN LEDs

Ashli Behill, Tattiana K. C. Davenport, Xiaomin Jin

Author Affiliations +

Proceedings Volume 9170, Nanoengineering: Fabrication, Properties, Optics, and Devices XI; 91701D (2014) https://doi.org/10.1117/12.2061123
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States

Abstract

We study nano-scale ITO top transmission gratings to improve light extraction efficiency using finite difference time domain (FDTD) method. Our study deals with a LED model with triangular-gratings and square-gratings. We achieve a 165.67% improvement for triangular ITO grating. Our study for square-gratings shows that it also can improve the total light extraction efficiency. Thus far, we have only achieved a 7.16% improvement with an ITO layer thickness of 230nm, a 230nm grating width and 10% duty cycle. We will present our comparison in further detail which will include various ITO layer thicknesses, grating widths and duty cycles.

Citation Download Citation

Ashli Behill, Tattiana K. C. Davenport, and Xiaomin Jin "Comparison of triangular and squared ITO nano-grating of GaN LEDs", Proc. SPIE 9170, Nanoengineering: Fabrication, Properties, Optics, and Devices XI, 91701D (28 August 2014); https://doi.org/10.1117/12.2061123

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