Computational analysis on the emission of ZnO nanowires and coreshell CdSe/ZnS quantum dots deposited on different substrates

Author

Farid, S. ; Purahmad, M. ; Stroscio, M.A. ; Dutta, M.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Illinois at Chicago, Chicago, IL, USA

fYear

2012

fDate

22-25 May 2012

Firstpage

1

Lastpage

3

Abstract

Computational analysis on the emission properties of ZnO nano wires (NWs) and coreshell quantum dots (QDs) have been made by considering the effects of scattering mechanism of the incident field and the total electric field from the surface of varied substrates. Simulation results indicate that the substrate (GaAs) having the highest emission intensity showed maximum light scattering from its surface while ITO that has the least emission intensity results in minimum rate of energy that is transferred per unit area. The simulation results proved that emission intensities spectrum is dependent on the type of substrate being used as well as the scattering of light from the surface of substrates and is independent on the type of material being deposited as well as the total electric field from the surface of substrate.

Keywords

II-VI semiconductors; cadmium compounds; light scattering; nanofabrication; nanowires; photoluminescence; semiconductor growth; semiconductor quantum dots; ultraviolet spectra; wide band gap semiconductors; zinc compounds; CdSe-ZnS; ZnO; computational analysis; coreshell quantum dots; emission intensity spectrum; light scattering; nanowires; photoluminiscence; scattering mechanism; Glass; Nanowires; Quantum dots; Substrates; Surface treatment; Zinc oxide; Core shell quantum dots; Nano wires; Poynting vector; Vapor liquid solid (VLS); photoluminiscence (PL) spectra;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Electronics (IWCE), 2012 15th International Workshop on

Conference_Location

Madison, WI

Print_ISBN

978-1-4673-0705-5

Type

conf

DOI

10.1109/IWCE.2012.6242830

Filename

6242830