Investigation of emission polarization and strain in InGaN/GaN multiple quantum wells on nanorod epitaxially lateral overgrowth templates

Huei-Min Huang; Tien-Chang Lu; Chiao-Yun Chang; Yu-Pin Lan; Shih-Chun Ling; Wei-Wen Chan; Hao-Chung Kuo; Shing-Chung Wang

doi:10.1117/12.906635

27 February 2012 Investigation of emission polarization and strain in InGaN/GaN multiple quantum wells on nanorod epitaxially lateral overgrowth templates

Huei-Min Huang, Tien-Chang Lu, Chiao-Yun Chang, Yu-Pin Lan, Shih-Chun Ling, Wei-Wen Chan, Hao-Chung Kuo, Shing-Chung Wang

Author Affiliations +

Proceedings Volume 8262, Gallium Nitride Materials and Devices VII; 82621Y (2012) https://doi.org/10.1117/12.906635
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

Non-polar (a-plane) InGaN/GaN multiple quantum wells (MQWs) on the GaN nanorod epitaxially lateral overgrowth templates with different nanorod height have been fabricated. The average in-plane strain in the InGaN MQWs has been determined from 2.73×10^-2 to 2.58×10^-2 while the nanorod height in templates increases from 0 to 1.7 μm. The polarization ratio of the emission from InGaN MQWs varies from 85 % to 53 % along with the increase of the GaN nanorod height. The reduction of polarization ratio has been attributed to the partial strain relaxation within the epitaxial structures as a result of growth on the GaN nanorod templates and the micro-size air-voids observed in the nanorod templates.

Citation Download Citation

Huei-Min Huang, Tien-Chang Lu, Chiao-Yun Chang, Yu-Pin Lan, Shih-Chun Ling, Wei-Wen Chan, Hao-Chung Kuo, and Shing-Chung Wang "Investigation of emission polarization and strain in InGaN/GaN multiple quantum wells on nanorod epitaxially lateral overgrowth templates", Proc. SPIE 8262, Gallium Nitride Materials and Devices VII, 82621Y (27 February 2012); https://doi.org/10.1117/12.906635

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE