Light Emission by Nanoporous GaN Produced by a Top-Down, Nonlithographical Nanopatterning
Joint Authors
Liang, Jianyu
Kheirandish, E.
Kouklin, N. A.
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-04
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Temperature-dependent photoluminescence (PL) spectroscopy is carried out to probe radiative recombination and related light emission processes in two-dimensional periodic close-packed nanopore arrays in gallium nitride (np-GaN).
The arrays were produced by nonlithographic nanopatterning of wurtzite GaN followed by a dry etching.
The results of Raman spectroscopy point to a small relaxation of the compressive stress of ~0.24 GPa in nanoporous vs.
bulk GaN.
At ~300 K, the PL emission is induced by excitons and not free-carrier interband radiative recombinations.
An evolution of the emission spectra with T is confirmed to be mainly a result of a decay of nonexcitonic PL emission and less of spectral shifts of the underlying PL bands.
A switching of excitonic PL regime observed experimentally was analyzed within the exciton recombination-generation framework.
The study provides new insights into the behaviors and physical mechanisms regulating light emission processes in np-GaN, critical to the development of nano-opto-electronic devices based on mesoscopic GaN.
American Psychological Association (APA)
Kheirandish, E.& Kouklin, N. A.& Liang, Jianyu. 2018. Light Emission by Nanoporous GaN Produced by a Top-Down, Nonlithographical Nanopatterning. Journal of Nanomaterials،Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1194378
Modern Language Association (MLA)
Kheirandish, E.…[et al.]. Light Emission by Nanoporous GaN Produced by a Top-Down, Nonlithographical Nanopatterning. Journal of Nanomaterials No. 2018 (2018), pp.1-6.
https://search.emarefa.net/detail/BIM-1194378
American Medical Association (AMA)
Kheirandish, E.& Kouklin, N. A.& Liang, Jianyu. Light Emission by Nanoporous GaN Produced by a Top-Down, Nonlithographical Nanopatterning. Journal of Nanomaterials. 2018. Vol. 2018, no. 2018, pp.1-6.
https://search.emarefa.net/detail/BIM-1194378
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1194378