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Applied Physics Letters : Influence of polarity on carrier transport in semipolar (20) and (201) multiple-quantum-well light-emitting diodes

By Yoshinobu Kawaguchi, Chia-Yen Huang, Yuh-Renn Wu, Qimin Yan, Chih-Chien Pan et al

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Book Id: WPLBN0002169181
Format Type: PDF eBook :
File Size: Serial Publication
Reproduction Date: 6 June 2012

Title: Applied Physics Letters : Influence of polarity on carrier transport in semipolar (20) and (201) multiple-quantum-well light-emitting diodes  
Author: Yoshinobu Kawaguchi, Chia-Yen Huang, Yuh-Renn Wu, Qimin Yan, Chih-Chien Pan et al
Volume: Issue : June 2012
Language: English
Subject: Science, Physics, Natural Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Applied Physics Letters Collection
Historic
Publication Date:
Publisher: American Institute of Physics

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Chia-Yen Huang, Yuh-Renn Wu, Qimin Yan, Chih-Chien Pan Et A, Y. K. (n.d.). Applied Physics Letters : Influence of polarity on carrier transport in semipolar (20) and (201) multiple-quantum-well light-emitting diodes. Retrieved from http://community.worldlibrary.net/


Description
Description: We investigate the influence of polarity on carrier transport in single-quantum-well and multiple-quantum-well (MQW) light-emitting diodes (LEDs) grown on the semipolar (20¯21) and (20¯21) orientations of free-standing GaN. For semipolar MQW LEDs with the opposite polarity to conventional Ga-polar c-plane LEDs, the polarization-related electric field in the QWs results in an additional energy barrier for carriers to escape the QWs. We show that semipolar (20¯21) MQW LEDs with the same polarity to Ga-polar c-plane LEDs have a more uniform carrier distribution and lower forward voltage than (20 ¯2 1) MQW LEDs.

 

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