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Synthesis of carbon-based quantum dots from starch extracts: Optical investigations

Carbon-based quantum dots (C-QDs) were synthesized through microwave-assisted carbonization of an aqueous starch suspension mediated by sulphuric and phosphoric acids. The as-prepared C-QDs showed blue, green and yellow luminescence without the addition of any surface-passivating agent. The C-QDs we...

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Main Authors: Al-Douri, Yarub, Badi, Nacer, Voon, Chun Hong
Format: Article
Published: Wiley 2017
Subjects:
QC Physics
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.um.edu.my/22577/
https://doi.org/10.1002/bio.3408
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spelling my.um.eprints.225772019-09-26T04:39:02Z http://eprints.um.edu.my/22577/ Synthesis of carbon-based quantum dots from starch extracts: Optical investigations Al-Douri, Yarub Badi, Nacer Voon, Chun Hong QC Physics TK Electrical engineering. Electronics Nuclear engineering Carbon-based quantum dots (C-QDs) were synthesized through microwave-assisted carbonization of an aqueous starch suspension mediated by sulphuric and phosphoric acids. The as-prepared C-QDs showed blue, green and yellow luminescence without the addition of any surface-passivating agent. The C-QDs were further analyzed by UV−vis spectroscopy to measure the optical response of the organic compound. The energy gaps revealed narrow sizing of C-QDs in the semiconductor range. The optical refractive index and dielectric constant were investigated. The C-QDs size distribution was characterized. The results suggested an easy route to the large scale production of C-QDs materials. Wiley 2017 Article PeerReviewed Al-Douri, Yarub and Badi, Nacer and Voon, Chun Hong (2017) Synthesis of carbon-based quantum dots from starch extracts: Optical investigations. Luminescence, 33 (2). pp. 260-266. ISSN 1522-7235 https://doi.org/10.1002/bio.3408 doi:10.1002/bio.3408
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QC Physics
TK Electrical engineering. Electronics Nuclear engineering
spellingShingle QC Physics
TK Electrical engineering. Electronics Nuclear engineering
Al-Douri, Yarub
Badi, Nacer
Voon, Chun Hong
Synthesis of carbon-based quantum dots from starch extracts: Optical investigations
description Carbon-based quantum dots (C-QDs) were synthesized through microwave-assisted carbonization of an aqueous starch suspension mediated by sulphuric and phosphoric acids. The as-prepared C-QDs showed blue, green and yellow luminescence without the addition of any surface-passivating agent. The C-QDs were further analyzed by UV−vis spectroscopy to measure the optical response of the organic compound. The energy gaps revealed narrow sizing of C-QDs in the semiconductor range. The optical refractive index and dielectric constant were investigated. The C-QDs size distribution was characterized. The results suggested an easy route to the large scale production of C-QDs materials.
format Article
author Al-Douri, Yarub
Badi, Nacer
Voon, Chun Hong
author_facet Al-Douri, Yarub
Badi, Nacer
Voon, Chun Hong
author_sort Al-Douri, Yarub
title Synthesis of carbon-based quantum dots from starch extracts: Optical investigations
title_short Synthesis of carbon-based quantum dots from starch extracts: Optical investigations
title_full Synthesis of carbon-based quantum dots from starch extracts: Optical investigations
title_fullStr Synthesis of carbon-based quantum dots from starch extracts: Optical investigations
title_full_unstemmed Synthesis of carbon-based quantum dots from starch extracts: Optical investigations
title_sort synthesis of carbon-based quantum dots from starch extracts: optical investigations
publisher Wiley
publishDate 2017
url http://eprints.um.edu.my/22577/
https://doi.org/10.1002/bio.3408
_version_ 1646210281138814976
score 13.211869

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