Investigation on the facile methods for the synthesis and characterization of CdSe/ZnSe core/shell nanocomposites

Author

Suganthi, A. R. Baby ; Sagayaraj, P.

Author_Institution

Dept. of Phys., Saveetha Univ., Chennai, India

fYear

2013

fDate

24-26 July 2013

Firstpage

530

Lastpage

531

Abstract

New method for the preparation of CdSe/ZnSe core/shell nanoparticles is described from the cadmium oxide (CdO) precursor through a convenient, two-step approach. The outer zinc selenide (ZnSe) shell provides efficient confinement of electron and hole wave functions inside the nanocrystal as well as high photochemical stability. Optical absorption and photoluminescence spectroscopes probe the effect of ZnSe passivation on the electronic structure of the dots. X-Ray diffraction spectra (XRD) and high resolution transmission electron microscopy (HRTEM) were used to analyze the average size, shape and internal structure of the core/shell nanoparticles.

Keywords

II-VI semiconductors; X-ray diffraction; cadmium compounds; nanocomposites; nanofabrication; nanoparticles; passivation; photoluminescence; transmission electron microscopy; wave functions; zinc compounds; CdSe-ZnSe; X-ray diffraction spectra; cadmium oxide; core-shell nanocomposite; electron wave function; high resolution transmission electron microscopy; hole wave function; nanocrystal; optical absorption; passivation; photochemical stability; photoluminescence; two step approach; zinc selenide; Nanocomposites; Core/shell; HRTEM; Nanocomposites; Nanoparticles; Surface Passivation;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Nanomaterials and Emerging Engineering Technologies (ICANMEET), 2013 International Conference on

Conference_Location

Chennai

Print_ISBN

978-1-4799-1377-0

Type

conf

DOI

10.1109/ICANMEET.2013.6609356

Filename

6609356