Optimization of gold nanoparticle photoluminescence by alkanethiolation
Year: 2015
Type: article
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.
Source: Chemical Communications
DOI: 10.1039/c5cc01229e
Institutions: Institute of Physics, Academia Sinica, National Cheng Kung University, Agency for Science, Technology and Research, Institute of Materials Research and Engineering, National University of Singapore, Academia Sinica, National Central University, Research Center for Applied Science, Academia Sinica, École Polytechnique Fédérale de Lausanne
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2046788091