CdSe Quantum Dots and SBMA/CdSe Nanocomposites Characterization by Optical and 2D DOSY NMR Methods

Abstract

We present experimental results on preparation and characterization of colloidal CdSe quantum dots (QDs) and polymer nanocomposite based on them. CdSe QDs were characterized by UV absorbance and visible photoluminescence (PL) spectroscopy as well as 2D DOSY NMR. The average CdSe particles size estimated from the UV-Vis absorption spectra was found to be in good correlation with results obtained from NMR measurements. Nanocomposite thin films were prepared on the base of styrene with butylmethacrilate copolymer (SBMA) (1:1). CdSe QDs were successfully incorporated into the SBMA copolymer matrix and thin films of CdSe/SBMA nanocomposites were characterized by UV-Vis and PL spectroscopy.