Effect of Photonic Crystal Structure on the Extraction Efficiency of Blue GaN/InGaN LED on Sapphire Substrate

Padma, GS and Pal, S (2012) Effect of Photonic Crystal Structure on the Extraction Efficiency of Blue GaN/InGaN LED on Sapphire Substrate. In: International Conference on Renewable Energy Resources for 21st Century - Challenges and Opportunities , March 9 - 10, 2012, Coimbatore, India. (Submitted)

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Abstract

This paper presents the investigation of enhancement in the extraction efficiency of the light emitting diode incorporating Photonic Crystal (PhC) based structure with hole pattern. PhC’s were investigated on GaN/InGaN based multiple quantum well (MQW) blue LEDs. Peak emission wavelength of 460nm was considered for the simulations. LEDs with both top and bottom-side PhC’s were considered in order to achieve the optimal light extraction efficiency. The design parameters like radius, lattice constant and thickness of the of PhCs are considered along with the distance of PhC from the QW. Results reveal that the increased efficiency is mainly due to scattering through PhC structures.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	?? TK ?? Semiconductor Devices > Optoelectronic Devices
Divisions:	Semiconductor Devices
Depositing User:	Mr. Rohit Singh
Date Deposited:	22 May 2013 09:55
Last Modified:	22 May 2013 09:55
URI:	http://ceeri.csircentral.net/id/eprint/159

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