- Title
- Interaction of water-soluble CdTe quantum dots with octacarboxy metallophthalocyanines
- Creator
- Idowu, Mopelola
- Creator
- Nyokong, Tebello
- Subject
- To be catalogued
- Date Issued
- 2009
- Date
- 2009
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/264197
- Identifier
- vital:53708
- Identifier
- xlink:href="https://doi.org/10.1016/j.jlumin.2008.11.005"
- Description
- Water-soluble CdTe quantum dots capped with L-cysteine (QD-CYS) were found to improve the photophysical and photochemical properties of octacarboxy metallophthalocyanine (MOCPc, M=Zn(II), Al(III)(OH), Ge(IV)(OH)2 and Si(IV)(OH)2) complexes. Increased diffusional interactions between the molecules and the ground-state molecular oxygen were established resulting from the increase in the triplet-state quantum yield and lifetimes of the MOCPcs in the presence of QD-CYS. Energy transfer occurred from QD-CYS to the MOCPcs upon excitation of QD-CYS. It was found that an efficient energy transfer process, which is not directly related to the amount of spectral overlap between the donor (QD-CYS) and the acceptor (MOCPc) can occur. Singlet oxygen via fluorescence resonance energy transfer (FRET) mechanism was produced in the QD-MPc mixture.
- Format
- computer
- Format
- online resource
- Format
- application/pdf
- Format
- 1 online resource (7 pages)
- Format
- Publisher
- Elsevier
- Language
- English
- Relation
- Journal of Luminescence
- Relation
- Idowu, M. and Nyokong, T., 2009. Interaction of water-soluble CdTe quantum dots with octacarboxy metallophthalocyanines: A photophysical and photochemical study. Journal of luminescence, 129(4), pp.356-362
- Relation
- Journal of Luminescence volume 129 number 4 p. 356 2009 1872-7883
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Elsevier Terms and Conditions Statement (https://www.elsevier.com/legal/elsevier-website-terms-and-conditions)
- Rights
- Closed 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 | Interaction of water-soluble CdTe quantum dots with octacarboxy metallophthalocyanines.pdf | 646 KB | Adobe Acrobat PDF | View Details Download |