Electrostatic Stabilized InP Colloidal Quantum Dots with High Photoluminescence Efficiency

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 i...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 31(2015), 25 vom: 30. Juni, Seite 7117-21
1. Verfasser: Mnoyan, Anush N (VerfasserIn)
Weitere Verfasser: Kirakosyan, Artavazd Gh, Kim, Hyunki, Jang, Ho Seong, Jeon, Duk Young
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a 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 
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700 1 |a Kim, Hyunki  |e verfasserin  |4 aut 
700 1 |a Jang, Ho Seong  |e verfasserin  |4 aut 
700 1 |a Jeon, Duk Young  |e verfasserin  |4 aut 
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