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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41363

Title: Symmetrically tunable optical properties of InGaN/GaN multiple quantum disks by an external stress
Authors: Han-Yu Shih;Yang-Fang Chen;Tai-Yuan Lin
Contributors: 國立臺灣海洋大學:光電科學研究所
Date: 2012
Issue Date: 2017-02-14T08:41:42Z
Publisher: Applied Physics Letters
Abstract: Abstract: The influence of an external stress on the optical properties of InGaN/GaN multiple quantum disks (MQDs) has been investigated. As a transversal force is applied on the MQDs, both photoluminescence and Raman scattering spectra are altered due to the piezoelectric potential accompanied by the quantum confined Stark effect. Quite interestingly, it is found that the optical spectra possess a sixfold symmetry about the c-axis. This intriguing phenomenon can be attributed to the inherent nature of hexagonal lattice as well as the good flexibility of the composite consisting of polydimethylsiloxane and MQDs. Our results can provide an alternative route to optimize and extend the application of nitride-based devices.
Relation: 100
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41363
Appears in Collections:[光電科學研究所] 期刊論文

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