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Optimization of gold nanoparticle photoluminescence by alkanethiolation
- Source :
- Chemical communications (Cambridge, England). 51(37)
- Publication Year :
- 2015
-
Abstract
- Surface thiolation affects the size of gold nanoparticles and the presence of visible luminescence under UV stimulation. We explored these phenomena by analysing alkanethiolate coatings with different carbon chain lengths, from 3-mercaptopropionic acid to 16-mercaptohexadecanoic acid, synthesized by intense X-ray irradiation. Photoluminescence is present for the smallest nanoparticles, but its intensity becomes more intense as the carbon chain length increases, achieving a quantum efficiency of 28% with a 16-mercaptohexadecanoic acid coating.
- Subjects :
- Carbon chain
Materials science
Photoluminescence
Metals and Alloys
Nanoparticle
General Chemistry
engineering.material
Photochemistry
Catalysis
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Coating
Colloidal gold
Materials Chemistry
Ceramics and Composites
engineering
Quantum efficiency
Irradiation
Luminescence
Subjects
Details
- ISSN :
- 1364548X
- Volume :
- 51
- Issue :
- 37
- Database :
- OpenAIRE
- Journal :
- Chemical communications (Cambridge, England)
- Accession number :
- edsair.doi.dedup.....9e4619d8df759f1919c7761c9007b052