Spatially resolved investigation of competing nanocluster emission in quantum-disks-in-nanowires structure characterized by nanoscale cathodoluminescence

Handle URI:
http://hdl.handle.net/10754/625320
Title:
Spatially resolved investigation of competing nanocluster emission in quantum-disks-in-nanowires structure characterized by nanoscale cathodoluminescence
Authors:
Prabaswara, Aditya; Stowe, David J.; Janjua, Bilal ( 0000-0001-9974-9879 ) ; Ng, Tien Khee ( 0000-0002-1480-6975 ) ; Anjum, Dalaver H.; Longo, Paolo; Zhao, Chao ( 0000-0002-9582-1068 ) ; Elafandy, Rami T.; Li, Xiaohang ( 0000-0002-4434-365X ) ; Alyamani, Ahmed Y.; El-Desouki, Munir M.; Ooi, Boon S. ( 0000-0001-9606-5578 )
Abstract:
We report on the study and characterization of nanoclusters-related recombination centers within quantum-disks-in-nanowires heterostructure by utilizing microphotoluminescence (mu-PL) and cathodoluminescence scanning transmission electron microscopy (CL-STEM). mu-PL measurement shows that the nanoclusters-related recombination center exhibits different temperature-dependent characteristics compared with the surrounding InGaN quantum-disksrelated recombination center. CL-STEM measurements reveal that these recombination centers mainly arise from irregularities within the quantum disks, with a strong, spatially localized emission when measured at low temperature. The spectra obtained from both CL-STEM and mu-PL correlate well with each other. Our work sheds light on the optical and structural properties of simultaneously coexisting recombination centers within nanowires heterostructures. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Imaging and Characterization Core Lab
Citation:
Prabaswara A, Stowe DJ, Janjua B, Ng TK, Anjum DH, et al. (2017) Spatially resolved investigation of competing nanocluster emission in quantum-disks-in-nanowires structure characterized by nanoscale cathodoluminescence. Journal of Nanophotonics 11: 026015. Available: http://dx.doi.org/10.1117/1.JNP.11.026015.
Publisher:
SPIE-Intl Soc Optical Eng
Journal:
Journal of Nanophotonics
Issue Date:
30-Jun-2017
DOI:
10.1117/1.JNP.11.026015
Type:
Article
ISSN:
1934-2608
Sponsors:
We acknowledge the financial support from King Abdulaziz City for Science and Technology (KACST), Grant No. KACST TIC R2-FP-008. This publication is also based on work supported by the King Abdullah University of Science and Technology (KAUST) baseline funding BAS/1/1614-01-01. The authors also acknowledge Experimental Technique Centre of Brunel University London for granting us access to the CL measurement facility.
Additional Links:
http://nanophotonics.spiedigitallibrary.org/article.aspx?articleid=2643091
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorPrabaswara, Adityaen
dc.contributor.authorStowe, David J.en
dc.contributor.authorJanjua, Bilalen
dc.contributor.authorNg, Tien Kheeen
dc.contributor.authorAnjum, Dalaver H.en
dc.contributor.authorLongo, Paoloen
dc.contributor.authorZhao, Chaoen
dc.contributor.authorElafandy, Rami T.en
dc.contributor.authorLi, Xiaohangen
dc.contributor.authorAlyamani, Ahmed Y.en
dc.contributor.authorEl-Desouki, Munir M.en
dc.contributor.authorOoi, Boon S.en
dc.date.accessioned2017-08-10T11:43:34Z-
dc.date.available2017-08-10T11:43:34Z-
dc.date.issued2017-06-30en
dc.identifier.citationPrabaswara A, Stowe DJ, Janjua B, Ng TK, Anjum DH, et al. (2017) Spatially resolved investigation of competing nanocluster emission in quantum-disks-in-nanowires structure characterized by nanoscale cathodoluminescence. Journal of Nanophotonics 11: 026015. Available: http://dx.doi.org/10.1117/1.JNP.11.026015.en
dc.identifier.issn1934-2608en
dc.identifier.doi10.1117/1.JNP.11.026015en
dc.identifier.urihttp://hdl.handle.net/10754/625320-
dc.description.abstractWe report on the study and characterization of nanoclusters-related recombination centers within quantum-disks-in-nanowires heterostructure by utilizing microphotoluminescence (mu-PL) and cathodoluminescence scanning transmission electron microscopy (CL-STEM). mu-PL measurement shows that the nanoclusters-related recombination center exhibits different temperature-dependent characteristics compared with the surrounding InGaN quantum-disksrelated recombination center. CL-STEM measurements reveal that these recombination centers mainly arise from irregularities within the quantum disks, with a strong, spatially localized emission when measured at low temperature. The spectra obtained from both CL-STEM and mu-PL correlate well with each other. Our work sheds light on the optical and structural properties of simultaneously coexisting recombination centers within nanowires heterostructures. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.en
dc.description.sponsorshipWe acknowledge the financial support from King Abdulaziz City for Science and Technology (KACST), Grant No. KACST TIC R2-FP-008. This publication is also based on work supported by the King Abdullah University of Science and Technology (KAUST) baseline funding BAS/1/1614-01-01. The authors also acknowledge Experimental Technique Centre of Brunel University London for granting us access to the CL measurement facility.en
dc.publisherSPIE-Intl Soc Optical Engen
dc.relation.urlhttp://nanophotonics.spiedigitallibrary.org/article.aspx?articleid=2643091en
dc.rightsPublished by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.en
dc.subjectnanowiresen
dc.subjectGaNen
dc.subjectcathodoluminescenceen
dc.subjectphotoluminescenceen
dc.titleSpatially resolved investigation of competing nanocluster emission in quantum-disks-in-nanowires structure characterized by nanoscale cathodoluminescenceen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentImaging and Characterization Core Laben
dc.identifier.journalJournal of Nanophotonicsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionGatan Inc., Abingdon, Oxon, , United Kingdomen
dc.contributor.institutionGatan Inc., Pleasanton, CA, , United Statesen
dc.contributor.institutionNational Center for Nanotechnology, King Abdulaziz City for Science and Technology (KACST), Riyadh, , Saudi Arabiaen
kaust.authorPrabaswara, Adityaen
kaust.authorJanjua, Bilalen
kaust.authorNg, Tien Kheeen
kaust.authorAnjum, Dalaver H.en
kaust.authorZhao, Chaoen
kaust.authorElafandy, Rami T.en
kaust.authorLi, Xiaohangen
kaust.authorOoi, Boon S.en
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