dc.contributor.author | Adams, L. A. | |
dc.contributor.author | Fagbenro-Owoseni, K. A. | |
dc.date.accessioned | 2017-09-28T07:27:54Z | |
dc.date.available | 2017-09-28T07:27:54Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | International Journal of Nanoelectronics and Materials, vol.10 (1), 2017, pages 11-20 | en_US |
dc.identifier.issn | 1985-5761 (Printed) | |
dc.identifier.issn | 1997-4434 (Online) | |
dc.identifier.uri | http://dspace.unimap.edu.my:80/xmlui/handle/123456789/49811 | |
dc.description | Link to publisher's homepage at http://ijneam.unimap.edu.my/ | en_US |
dc.description.abstract | Tunable luminescence carbon dots (C-dots) were prepared through microwaveassisted
carbonization of aqueous starch suspension mediated by sulfuric and phosphoric
acids respectively as surface passivating agents. The as-prepared C-dots showed green, blue and yellow luminescence under 365nm UV light. The C-dots were further characterized by UV-Vis, FTIR, and band gap determination. Fourier transform infrared spectroscopy (FTIR) studies revealed bands at 3460 cm-1 (OH), 2979 cm-1 1708 cm-1 (C=O), 1188 and 1040cm-1 (C-O), and 1397 cm-1 (C=C) indicative of the graphitic nature of the carbon. The UV-Vis showed blue shifted absorption bands, while the band gap calculated revealed narrow sizing of the C-dots in the semiconductor range. The results suggest that this approach may serve as a facile route to colour tunable photoluminescent C-dot materials with potential biological applications. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Universiti Malaysia Perlis (UniMAP) | en_US |
dc.subject | Carbon quantum dots | en_US |
dc.subject | Semiconductor | en_US |
dc.subject | Starch | en_US |
dc.subject | Microwave | en_US |
dc.subject | Luminescence | en_US |
dc.title | Tunable carbon quantum dots from starch via microwave assisted carbonization | en_US |
dc.type | Article | en_US |
dc.contributor.url | ladams@unilag.edu.ng. | en_US |