- Title
- Nonlinear interactions of zinc phthalocyanine-graphene quantum dots nanocomposites: Investigation of effects of surface functionalization with heteroatoms
- Creator
- Bankole, Owolabi M
- Creator
- Achadu, Ojodomo J
- Creator
- Nyokong, Tebello
- Subject
- To be catalogued
- Date Issued
- 2017
- Date
- 2017
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/188474
- Identifier
- vital:44757
- Identifier
- xlink:href="https://doi.org/10.1007/s10895-016-2008-8"
- Description
- This study reports the development of functional optical limiting materials composed of pristine graphene (GQDs), nitrogen-doped (NGQDs) and sulfur-nitrogen co-doped (SNGQDs) graphene quantum dots covalently linked to mono-amino substituted zinc phthalocyanine (Pc). Open aperture Z-scan technique was employed to monitor the behaviour of the conjugates under tightly focussed Gaussian laser beam using a mode-locked Nd:YAG laser delivering 10 nanosecond (FWHM) pulses at 532 nm wavelength. Nonlinear effect due to reverse saturable absorption was the predominant mechanism; and was attributed to the moderately enhanced triplet population. The major factor(s) responsible for the enhanced nonlinearities in the Pc-NGQDs and Pc-SNGQDs was fully described and attributed to the surface defects caused by the presence of heteroatoms of N and S.
- Format
- computer
- Format
- online resource
- Format
- application/pdf
- Format
- 1 online resource (12 pages)
- Format
- Publisher
- SpringerLink
- Language
- English
- Relation
- Journal of Fluorescence
- Relation
- Bankole, O.M., Achadu, O.J. and Nyokong, T., 2017. Nonlinear interactions of zinc phthalocyanine-graphene quantum dots nanocomposites: investigation of effects of surface functionalization with heteroatoms. Journal of fluorescence, 27(2), pp.755-766
- Relation
- Journal of Fluorescence volume 27 number 2 p. 755 2017 1573-4994
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the SpringerLink Terms of Use Statement ( https://link.springer.com/termsandconditions)
- Rights
- Open Access
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Collections
RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology
Nyokong, Tebello (Distinguished Professor)
RU Department of Chemistry
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details Download | SOURCE1 | Nonlinear interactions of zinc phthalocyanine-graphene quantum dots nanocomposites.pdf | 1 MB | Adobe Acrobat PDF | View Details Download |