Electrostatic Stabilized InP Colloidal Quantum Dots with High Photoluminescence Efficiency

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Electrostatically stabilized InP quantum. dots (QDs) showing a high luminescence yield of 16% without any long alkyl chain coordinating ligands on their surface are demonstrated: This is achieved by UV-etching the QDs in the presence of fluoric and sulfuric acids. Fluoric acid plays a critical role in selectively etching nonradiative sites during the ligand-exchange process and in relieving the acidity of the solution to prevent destruction of the QDs. Given that the InP QDs show high luminescence without any electrical barriers, such as long alkyl ligands or inorganic shells, this method can be applied for QD treatment for application to highly efficient QD-based optoelectronic devices.
Publisher
AMER CHEMICAL SOC
Issue Date
2015-06
Language
English
Article Type
Article
Keywords

NANOCRYSTALS; LUMINESCENCE; ROUTE

Citation

LANGMUIR, v.31, no.25, pp.7117 - 7121

ISSN
0743-7463
DOI
10.1021/acs.langmuir.5b00847
URI
http://hdl.handle.net/10203/200729
Appears in Collection
MS-Journal Papers(저널논문)
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