Dopant induced changes in optical and structural properties of Cadmium Selenide nanoparticles

Author

Goswami, Bhaswati ; Choudhury, Alamgir

Author_Institution

Dept. of Phys., Tezpur Univ., Napaam, India

fYear

2013

fDate

24-26 July 2013

Firstpage

532

Lastpage

535

Abstract

Cadmium Selenide (CdSe) nanoparticles are synthesized by a simple and cost effective one pot synthesis method and incorporated size selective precipitation to get powder samples. We have studied structural, morphological and optical properties by High resolution transmission electron microscope (HR-TEM), X-ray diffraction (XRD), Uv-vis reflectance spectra and photoluminescence spectra (PL). We have doped CdSe nanoparticles with Manganese (Mn²⁺) ions and saw the modifications in optical and morphological properties. Band gap and crystallite size of the nanoparticles are quite antiphonal to doping concentration. Calculated Urbach energies and Lattice parameters are also seemed to be changed with dopant concentration due to substitutional doping.

Keywords

II-VI semiconductors; X-ray diffraction; cadmium compounds; doping profiles; lattice constants; manganese; nanofabrication; nanoparticles; optical constants; photoluminescence; precipitation (physical chemistry); semiconductor doping; semiconductor growth; transmission electron microscopy; ultraviolet spectra; visible spectra; wide band gap semiconductors; CdSe:Mn; HR-TEM; Urbach energies; Uv-vis reflectance spectra; X-ray diffraction; XRD; band gap; cadmium selenide nanoparticles; crystallite size; doping concentration; get powder samples; high-resolution transmission electron microscopy; lattice parameters; manganese ions; morphological properties; optical properties; photoluminescence spectra; precipitation; structural properties; Manganese; Microscopy; Optical microscopy; Optical reflection; Photonic band gap; Spectroscopy; Strain; CdSe; Manganese; doping;

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.2013.6609359

Filename

6609359