You are in:Home/Publications/STM Spectroscopy of Alloyed Nanocrystal Composite CdSxSe1-X

Dr. Khalid Hasan Easawi Elsayed :: Publications:

Title:
STM Spectroscopy of Alloyed Nanocrystal Composite CdSxSe1-X
Authors: K. Easawi
Year: 2012
Keywords: Alloy semiconductor nanocrystals; STM
Journal: Not Available
Volume: Not Available
Issue: Not Available
Pages: Not Available
Publisher: Not Available
Local/International: Local
Paper Link: Not Available
Full paper Khalid Hasan Easawi Elsayed_DR-Khaled_Paper-05.pdf
Supplementary materials Not Available
Abstract:

Nanocrystals (NC) alloyed composite CdSxSe1-x(x=0 to 1) have been prepared using the chemical solution deposition technique. The energy band gap of these alloyed nanocrystals of approximately the same size, have been determined by scanning tunneling spectroscopy (STS) technique at room temperature. The values of the energy band gap obtained directly using STS are compared to those measured by optical spectroscopy. Increasing the molar fraction ratio x from 0 to 1 causes clearly observed increase in the band gap of the alloyed composite nanocrystal. Vegard’s law was applied to calculate the parameters of the effective mass approximation (EMA) model and the dimension obtained were compared to the values measured by STM. The good agreement of the calculated and measured values is a direct result of applying Vegard's law in the nanocomposites.

Google ScholarAcdemia.eduResearch GateLinkedinFacebookTwitterGoogle PlusYoutubeWordpressInstagramMendeleyZoteroEvernoteORCIDScopus