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Synthesis and optical characterization of thermosensitive, luminescent gold nanodots

  • A facile one-pot synthesis for preparing thermosensitive, luminescent gold nanodots with diameters of 1-2 nm is presented. The influence of the alkyl chain length of the surface ligands (alkyl thiols) on the optical properties of the gold nanodots was investigated. The synthesized gold nanodots show strong thermosensitive photoluminescence. A photoluminescence quantum yield of 16.6% was observed at room temperature, which could be improved to a value of 28.6% when cooling the gold nanodot solutions to -7 degrees C. The synthesized thermosensitive, luminescent gold nanodots are interesting candidates for optoelectronic devices, medical imaging, sensing, or security labels.

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Metadaten
Author details:Jana Bomm, Christina GünterGND, Joachim Stumpe
DOI:https://doi.org/10.1021/jp206260r
ISSN:1932-7447
Title of parent work (English):The journal of physical chemistry : C, Nanomaterials and interfaces
Publisher:American Chemical Society
Place of publishing:Washington
Publication type:Article
Language:English
Year of first publication:2012
Publication year:2012
Release date:2017/03/26
Volume:116
Issue:1
Number of pages:5
First page:81
Last Page:85
Funding institution:Fraunhofer Secure Identity Innovation Cluster
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Geowissenschaften
Peer review:Referiert
Institution name at the time of the publication:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Erd- und Umweltwissenschaften
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