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High-quality optically defect-free 1D ZnS nanostructures by a modified thermal evaporation method

ZnS has great potential as a valuable material for nanoscale devices because of its rich morphologies and unique structure. Although much effort has been made, the growth of high-quality ZnS crystal is still a challenge. In this paper, high-quality optically defect-free 1D ZnS nanostructures, includ...

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Main Authors: Tran, M.T., Dua, N.V., Tua, N., Huyen, N.T.
Format: Bài trích
Language:English
Published: Elsevier 2022
Subjects:
1D ZnS nanostructure
Single-phase crystal
Online Access:https://www.sciencedirect.com/science/article/abs/pii/S0925346721011630?via%3Dihub
https://dlib.phenikaa-uni.edu.vn/handle/PNK/5722
https://doi.org/10.1016/j.optmat.2021.111963
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spelling oai:localhost:PNK-57222022-08-17T05:54:50Z High-quality optically defect-free 1D ZnS nanostructures by a modified thermal evaporation method Tran, M.T. Dua, N.V. Tua, N. Huyen, N.T. 1D ZnS nanostructure Single-phase crystal ZnS has great potential as a valuable material for nanoscale devices because of its rich morphologies and unique structure. Although much effort has been made, the growth of high-quality ZnS crystal is still a challenge. In this paper, high-quality optically defect-free 1D ZnS nanostructures, including nanorods, nanowires, and nanobelts, were successfully synthesized on a large scale by a modified thermal evaporation method. XRD patterns and HRTEM images indicated that the ZnS nanostructures are single phases with hexagonal structures. Under optical excitation, all the ZnS nanostructures show intense UV emissions and almost no defect emissions at room temperature. Sharp UV lasing-like peaks with the FWHM as narrow as 2–3 nm are achieved for the ZnS nanobelts and nanowires. The optical transition from free exciton A, free exciton B, and their associated LO phonon replicas were determined from the evolution of the NBE emissions. These high-quality nanostructures are envisaged to be highly promising for high-efficiency light-emitting devices and lasers in the UV region 2022-05-05T07:26:12Z 2022-05-05T07:26:12Z 2022 Bài trích https://www.sciencedirect.com/science/article/abs/pii/S0925346721011630?via%3Dihub https://dlib.phenikaa-uni.edu.vn/handle/PNK/5722 https://doi.org/10.1016/j.optmat.2021.111963 en Elsevier
institution Digital Phenikaa
collection Digital Phenikaa
language English
topic 1D ZnS nanostructure
Single-phase crystal
spellingShingle 1D ZnS nanostructure
Single-phase crystal
Tran, M.T.
Dua, N.V.
Tua, N.
Huyen, N.T.
High-quality optically defect-free 1D ZnS nanostructures by a modified thermal evaporation method
description ZnS has great potential as a valuable material for nanoscale devices because of its rich morphologies and unique structure. Although much effort has been made, the growth of high-quality ZnS crystal is still a challenge. In this paper, high-quality optically defect-free 1D ZnS nanostructures, including nanorods, nanowires, and nanobelts, were successfully synthesized on a large scale by a modified thermal evaporation method. XRD patterns and HRTEM images indicated that the ZnS nanostructures are single phases with hexagonal structures. Under optical excitation, all the ZnS nanostructures show intense UV emissions and almost no defect emissions at room temperature. Sharp UV lasing-like peaks with the FWHM as narrow as 2–3 nm are achieved for the ZnS nanobelts and nanowires. The optical transition from free exciton A, free exciton B, and their associated LO phonon replicas were determined from the evolution of the NBE emissions. These high-quality nanostructures are envisaged to be highly promising for high-efficiency light-emitting devices and lasers in the UV region
format Bài trích
author Tran, M.T.
Dua, N.V.
Tua, N.
Huyen, N.T.
author_facet Tran, M.T.
Dua, N.V.
Tua, N.
Huyen, N.T.
author_sort Tran, M.T.
title High-quality optically defect-free 1D ZnS nanostructures by a modified thermal evaporation method
title_short High-quality optically defect-free 1D ZnS nanostructures by a modified thermal evaporation method
title_full High-quality optically defect-free 1D ZnS nanostructures by a modified thermal evaporation method
title_fullStr High-quality optically defect-free 1D ZnS nanostructures by a modified thermal evaporation method
title_full_unstemmed High-quality optically defect-free 1D ZnS nanostructures by a modified thermal evaporation method
title_sort high-quality optically defect-free 1d zns nanostructures by a modified thermal evaporation method
publisher Elsevier
publishDate 2022
url https://www.sciencedirect.com/science/article/abs/pii/S0925346721011630?via%3Dihub
https://dlib.phenikaa-uni.edu.vn/handle/PNK/5722
https://doi.org/10.1016/j.optmat.2021.111963
_version_ 1751856313224134656
score 8.891053

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