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, DOI https://doi.org/10.1002/bio.3408.
Full text not available from this repository.Abstract
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.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | carbon quantum dots; optical properties; starch |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 26 Sep 2019 04:39 |
| Last Modified: | 26 Sep 2019 04:39 |
| URI: | http://eprints.um.edu.my/id/eprint/22577 |
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