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Proceedings Paper

Influence of dilution with organic solvents on emission spectra of CdSe/ZnS quantum dots
Author(s): Mitsutaka Kumakura; Asuka Kinan; Takeshi Moriyasu
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Paper Abstract

The emission spectra of CdSe/ZnS core-shell dots have been monitored after the dilution of their toluene solution with organic solvents (toluene, n-hexane, diethyl ether, acetone, ethanol, and methanol). In addition to the well-known difference of the emission efficiency according to the solvent, we found their time variation depending on the solvent. From the discussion based on the solubility of the capping organic ligand, hexadecylamine (HDA), to each solvent it is suggested that the observed time variation is caused by the liquation of the capping molecules form the dot surface and the resulting change of the number of the trap site for charges in the quantum dot.

Paper Details

Date Published: 18 April 2017
PDF: 4 pages
Proc. SPIE 10252, Optical Manipulation Conference, 1025219 (18 April 2017); doi: 10.1117/12.2269436
Show Author Affiliations
Mitsutaka Kumakura, Univ. of Fukui (Japan)
Asuka Kinan, Univ. of Fukui (Japan)
Takeshi Moriyasu, Univ. of Fukui (Japan)

Published in SPIE Proceedings Vol. 10252:
Optical Manipulation Conference
Takashige Omatsu, Editor(s)

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