Influence of dilution with organic solvents on emission spectra of CdSe/ZnS quantum dots

Mitsutaka Kumakura; Asuka Kinan; Takeshi Moriyasu

doi:10.1117/12.2269436

18 April 2017 Influence of dilution with organic solvents on emission spectra of CdSe/ZnS quantum dots

Mitsutaka Kumakura, Asuka Kinan, Takeshi Moriyasu

Proceedings Volume 10252, Optical Manipulation Conference; 1025219 (2017) https://doi.org/10.1117/12.2269436
Event: SPIE Technologies and Applications of Structured Light, 2017, Yokohama, Japan

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.

Citation Download Citation

Mitsutaka Kumakura, Asuka Kinan, and Takeshi Moriyasu "Influence of dilution with organic solvents on emission spectra of CdSe/ZnS quantum dots", Proc. SPIE 10252, Optical Manipulation Conference, 1025219 (18 April 2017); https://doi.org/10.1117/12.2269436

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available