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

Aditya Prabaswara; David J. Stowe; Bilal Janjua; Tien Khee Ng; Dalaver H. Anjum; Paolo Longo; Chao Zhao; Rami T. Elafandy; Xiaohang Li; Ahmed Y. Alyamani; Munir M. El-Desouki; Boon S. Ooi

doi:10.1117/1.JNP.11.026015

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

Aditya Prabaswara, David J. Stowe, Bilal Janjua, Tien Khee Ng, Dalaver H. Anjum, Paolo Longo, Chao Zhao, Rami T. Elafandy, Xiaohang Li, Ahmed Y. Alyamani, Munir M. El-Desouki, Boon S. Ooi

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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.

Original language	English (US)
Pages (from-to)	026015
Journal	Journal of Nanophotonics
Volume	11
Issue number	2
DOIs	https://doi.org/10.1117/1.JNP.11.026015
State	Published - Jun 30 2017

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: 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.

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10.1117/1.JNP.11.026015

https://repository.kaust.edu.sa/bitstream/10754/625320/1/JNP_11_2_026015.pdf

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Prabaswara, A., Stowe, D. J., Janjua, B., Ng, T. K., Anjum, D. H., Longo, P., Zhao, C., Elafandy, R. T., Li, X., Alyamani, A. Y., El-Desouki, M. M., & Ooi, B. S. (2017). Spatially resolved investigation of competing nanocluster emission in quantum-disks-in-nanowires structure characterized by nanoscale cathodoluminescence. Journal of Nanophotonics, 11(2), 026015. https://doi.org/10.1117/1.JNP.11.026015

@article{e404cfc02640471e85dd3600dd316b33,

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

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.",

author = "Aditya Prabaswara and Stowe, {David J.} and Bilal Janjua and Ng, {Tien Khee} and Anjum, {Dalaver H.} and Paolo Longo and Chao Zhao and Elafandy, {Rami T.} and Xiaohang Li and Alyamani, {Ahmed Y.} and El-Desouki, {Munir M.} and Ooi, {Boon S.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: 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.",

year = "2017",

month = jun,

day = "30",

doi = "10.1117/1.JNP.11.026015",

language = "English (US)",

volume = "11",

pages = "026015",

journal = "Journal of Nanophotonics",

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Prabaswara, A, Stowe, DJ, Janjua, B, Ng, TK, Anjum, DH, Longo, P, Zhao, C, Elafandy, RT, Li, X, Alyamani, AY, El-Desouki, MM & Ooi, BS 2017, 'Spatially resolved investigation of competing nanocluster emission in quantum-disks-in-nanowires structure characterized by nanoscale cathodoluminescence', Journal of Nanophotonics, vol. 11, no. 2, pp. 026015. https://doi.org/10.1117/1.JNP.11.026015

TY - JOUR

T1 - Spatially resolved investigation of competing nanocluster emission in quantum-disks-in-nanowires structure characterized by nanoscale cathodoluminescence

AU - Prabaswara, Aditya

AU - Stowe, David J.

AU - Janjua, Bilal

AU - Ng, Tien Khee

AU - Anjum, Dalaver H.

AU - Longo, Paolo

AU - Zhao, Chao

AU - Elafandy, Rami T.

AU - Li, Xiaohang

AU - Alyamani, Ahmed Y.

AU - El-Desouki, Munir M.

AU - Ooi, Boon S.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: 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.

PY - 2017/6/30

Y1 - 2017/6/30

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10754/625320

UR - http://nanophotonics.spiedigitallibrary.org/article.aspx?articleid=2643091

UR - http://www.scopus.com/inward/record.url?scp=85021731197&partnerID=8YFLogxK

U2 - 10.1117/1.JNP.11.026015

DO - 10.1117/1.JNP.11.026015

M3 - Article

SN - 1934-2608

VL - 11

SP - 026015

JO - Journal of Nanophotonics

JF - Journal of Nanophotonics

IS - 2

ER -

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

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