Opening band gap of multi-color graphene quantum dots using D-fructose as a green precursor
Graphene was successfully isolated by Professors Andre Geim and Kostya Novoselov in 2004. Graphene has attracted considerable research importance for its distinctive properties and potential applications. In this study, low-cost and high blue, yellow, and green photoluminescent (PL) graphene quantum...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Alexandria Engineering Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110016823006816 |
| _version_ | 1797686851525410816 |
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| author | Haifa S. Al Ghamdi Ahmed A. Al-Ghamdi |
| author_facet | Haifa S. Al Ghamdi Ahmed A. Al-Ghamdi |
| author_sort | Haifa S. Al Ghamdi |
| collection | DOAJ |
| description | Graphene was successfully isolated by Professors Andre Geim and Kostya Novoselov in 2004. Graphene has attracted considerable research importance for its distinctive properties and potential applications. In this study, low-cost and high blue, yellow, and green photoluminescent (PL) graphene quantum dots (GQDs) were synthesized with deionized water (DI) and D-fructose as precursors by the dehydration method in the presence of hydrochloric acid. Transmission electron microscopy imaging proved the changing size of the GQDs and, by nuclear magnetic resonance spectroscopy, we observed the hydrogen-functionalized GQDs. The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) of the synthesized GQDs were determined, and an energy bandgap was obtained from optical investigations. |
| first_indexed | 2024-03-12T01:10:35Z |
| format | Article |
| id | doaj.art-405aeb57c8ef407fa570f61b91ed7866 |
| institution | Directory Open Access Journal |
| issn | 1110-0168 |
| language | English |
| last_indexed | 2024-03-12T01:10:35Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Alexandria Engineering Journal |
| spelling | doaj.art-405aeb57c8ef407fa570f61b91ed78662023-09-14T04:53:11ZengElsevierAlexandria Engineering Journal1110-01682023-09-0179155163Opening band gap of multi-color graphene quantum dots using D-fructose as a green precursorHaifa S. Al Ghamdi0Ahmed A. Al-Ghamdi1Department of Physics, King Abdulaziz University, 21589, Jeddah, Saudi Arabia; University of Jeddah, College of Science, Department of Physics, Jeddah, Saudi Arabia; Corresponding author,Department of Physics, King Abdulaziz University, 21589, Jeddah, Saudi ArabiaGraphene was successfully isolated by Professors Andre Geim and Kostya Novoselov in 2004. Graphene has attracted considerable research importance for its distinctive properties and potential applications. In this study, low-cost and high blue, yellow, and green photoluminescent (PL) graphene quantum dots (GQDs) were synthesized with deionized water (DI) and D-fructose as precursors by the dehydration method in the presence of hydrochloric acid. Transmission electron microscopy imaging proved the changing size of the GQDs and, by nuclear magnetic resonance spectroscopy, we observed the hydrogen-functionalized GQDs. The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) of the synthesized GQDs were determined, and an energy bandgap was obtained from optical investigations.http://www.sciencedirect.com/science/article/pii/S1110016823006816multicolor GQDsBand gap: cyclic voltammetryD-fructose |
| spellingShingle | Haifa S. Al Ghamdi Ahmed A. Al-Ghamdi Opening band gap of multi-color graphene quantum dots using D-fructose as a green precursor Alexandria Engineering Journal multicolor GQDs Band gap: cyclic voltammetry D-fructose |
| title | Opening band gap of multi-color graphene quantum dots using D-fructose as a green precursor |
| title_full | Opening band gap of multi-color graphene quantum dots using D-fructose as a green precursor |
| title_fullStr | Opening band gap of multi-color graphene quantum dots using D-fructose as a green precursor |
| title_full_unstemmed | Opening band gap of multi-color graphene quantum dots using D-fructose as a green precursor |
| title_short | Opening band gap of multi-color graphene quantum dots using D-fructose as a green precursor |
| title_sort | opening band gap of multi color graphene quantum dots using d fructose as a green precursor |
| topic | multicolor GQDs Band gap: cyclic voltammetry D-fructose |
| url | http://www.sciencedirect.com/science/article/pii/S1110016823006816 |
| work_keys_str_mv | AT haifasalghamdi openingbandgapofmulticolorgraphenequantumdotsusingdfructoseasagreenprecursor AT ahmedaalghamdi openingbandgapofmulticolorgraphenequantumdotsusingdfructoseasagreenprecursor |