Chemistry Journal of Moldova

SYNTHESIS AND CHARACTERIZATION OF CdSe COLLOIDAL QUANTUM DOTS IN ORGANIC SOLVENT

Author(s):

Ion Geru, Olga Bordian, Constantin Loshmansky, Ion Culeac, Constantin Turta


Field: Physical chemistry and chemical physics
Type: Research paper
Issue: 2014 Volume 9, no.1
Pages: 128-131
Keywords:

colloidal quantum dots, semiconductor, cadmium selenide, nanocrystals, photoluminescence


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Abstract (PDF)

DOI:
dx.doi.org/10.19261/cjm.2014.09(1).17

Graphical Abstract:
 In this paper we present experimental results on preparation and characterization of colloidal CdSe quantum dots in organic solvent. CdSe QDs were synthesized following a modified literature method.
CdSe QDs were isolated by adding acetone to the cooled solution followed by centrifugation.
CdSe QDs have been characterized by UV-Vis absorption and photoluminescent (PL) spectroscopy. The average CdSe particles size estimated from the UV-Vis absorption spectra was found to be in the range 2.28-2.92 nm which is in good agreement with PL measurements. 

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