Title

Modeling Of Nitride Based Core/Multishell Nanowire Light Emitting Diodes

Keywords

Electro-optics; Optical design; Optical properties; Photodiodes; Piezoelectric effect; Quantum wells

Abstract

A comprehensive theoretical model for InGaN core/multishell nanowire (CMS NW) light emitting diodes (LEDs) has been developed that accurately predicts both electrical and optical properties of CMS NW structures. Using the model, the electron and hole injection in a CMS NW device was studied, showing that the InGaN quantum well (QW) serves as a high electron mobility channel for electron injection while the poor hole conductivity in the p-GaN outer layer confines hole injection to an area directly below the pcontact. Light generation in the CMS NW was found to occur only directly below the pcontact in the InGaN QW as a result of the isolated hole injection. The model was found to accurately predict the optical emission of the CMS NWs for both changes in thickness and Indium composition of the InGaN QW when compared to experimental values from the literature. Piezoelectric effects were not found to play a significant role in the CMS NWs, suggesting that alloy broadening and excitonic emission are the dominant role in determining the FWHM of the CMS NW emission. © 2007 Society of Photo-Optical Instrumentation Engineers.

Publication Date

1-1-2007

Publication Title

Journal of Nanophotonics

Volume

1

Issue

1

Number of Pages

-

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/1.2516674

Socpus ID

55549112998 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/55549112998

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