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Tellurium quantum dots: Preparation and optical properties

Chaoyu Lu, Xueming Li, Libin Tang, Sin Ki Lai, Lukas Rogée, Kar Seng Teng, Fuli Qian, Liangliang Zhou, Shu Ping Lau, Vincent Teng Orcid Logo

Applied Physics Letters, Volume: 111, Issue: 6, Start page: 063112

Swansea University Author: Vincent Teng Orcid Logo

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DOI (Published version): 10.1063/1.4993819

Abstract

Herein, we report an effective and simple method for producing Tellurium Quantum dots (TeQDs), zero-dimensional nanomaterials with great prospects for biomedical applications. Their preparation is based on the ultrasonic exfoliation of Te powder dispersed in 1-methyl-2-pyrrolidone. Sonication causes...

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Published in: Applied Physics Letters
ISSN: 0003-6951 1077-3118
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa34847
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last_indexed 2018-02-09T05:25:23Z
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spelling 2017-10-03T16:10:59.6549908 v2 34847 2017-08-01 Tellurium quantum dots: Preparation and optical properties 98f529f56798da1ba3e6e93d2817c114 0000-0003-4325-8573 Vincent Teng Vincent Teng true false 2017-08-01 EEEG Herein, we report an effective and simple method for producing Tellurium Quantum dots (TeQDs), zero-dimensional nanomaterials with great prospects for biomedical applications. Their preparation is based on the ultrasonic exfoliation of Te powder dispersed in 1-methyl-2-pyrrolidone. Sonication causes the van der Waals forces between the structural hexagons of Te to break so that the relatively coarse powder breaks down into nanoscale particles. The TeQDs have an average size of about 4 nm. UV-Vis absorption spectra of the TeQDs showed an absorption peak at 288 nm. Photoluminescence excitation (PLE) and photoluminescence (PL) are used to study the optical properties of TeQDs. Both the PLE and PL peaks revealed a linear relationship against the emission and excitation energies, respectively. TeQDs have important potential applications in biological imaging and catalysis as well as optoelectronics. Journal Article Applied Physics Letters 111 6 063112 0003-6951 1077-3118 Metalloids, Optical properties, Quantum dots, Luminescence spectroscopy, Ultrasonics 31 12 2017 2017-12-31 10.1063/1.4993819 COLLEGE NANME Electronic and Electrical Engineering COLLEGE CODE EEEG Swansea University 2017-10-03T16:10:59.6549908 2017-08-01T09:44:37.8868030 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering Chaoyu Lu 1 Xueming Li 2 Libin Tang 3 Sin Ki Lai 4 Lukas Rogée 5 Kar Seng Teng 6 Fuli Qian 7 Liangliang Zhou 8 Shu Ping Lau 9 Vincent Teng 0000-0003-4325-8573 10 0034847-01082017094945.pdf lu2017.pdf 2017-08-01T09:49:45.2400000 Output 2450041 application/pdf Accepted Manuscript true 2017-08-01T00:00:00.0000000 true eng
title Tellurium quantum dots: Preparation and optical properties
spellingShingle Tellurium quantum dots: Preparation and optical properties
Vincent Teng
title_short Tellurium quantum dots: Preparation and optical properties
title_full Tellurium quantum dots: Preparation and optical properties
title_fullStr Tellurium quantum dots: Preparation and optical properties
title_full_unstemmed Tellurium quantum dots: Preparation and optical properties
title_sort Tellurium quantum dots: Preparation and optical properties
author_id_str_mv 98f529f56798da1ba3e6e93d2817c114
author_id_fullname_str_mv 98f529f56798da1ba3e6e93d2817c114_***_Vincent Teng
author Vincent Teng
author2 Chaoyu Lu
Xueming Li
Libin Tang
Sin Ki Lai
Lukas Rogée
Kar Seng Teng
Fuli Qian
Liangliang Zhou
Shu Ping Lau
Vincent Teng
format Journal article
container_title Applied Physics Letters
container_volume 111
container_issue 6
container_start_page 063112
publishDate 2017
institution Swansea University
issn 0003-6951
1077-3118
doi_str_mv 10.1063/1.4993819
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering
document_store_str 1
active_str 0
description Herein, we report an effective and simple method for producing Tellurium Quantum dots (TeQDs), zero-dimensional nanomaterials with great prospects for biomedical applications. Their preparation is based on the ultrasonic exfoliation of Te powder dispersed in 1-methyl-2-pyrrolidone. Sonication causes the van der Waals forces between the structural hexagons of Te to break so that the relatively coarse powder breaks down into nanoscale particles. The TeQDs have an average size of about 4 nm. UV-Vis absorption spectra of the TeQDs showed an absorption peak at 288 nm. Photoluminescence excitation (PLE) and photoluminescence (PL) are used to study the optical properties of TeQDs. Both the PLE and PL peaks revealed a linear relationship against the emission and excitation energies, respectively. TeQDs have important potential applications in biological imaging and catalysis as well as optoelectronics.
published_date 2017-12-31T03:43:15Z
_version_ 1763752013231816704
score 11.037603

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