Influence of different stabilizers on the optical and nonlinear optical properties of CdTe nanoparticles

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Abstract

CdTe semiconductor nanocrystals were synthesized with three different stabilizers: Mercaptoacetic Acid (MM), Mercaptopropionic Acid (MPA) and 2-Mercaptoethanol (ME) at pH approximate to 11.2 by wet chemical route using potassium tellurite and cadmium chloride as starting materials. The effect of capping agent on the preparation of these samples was evaluated using UV-Visible absorption and photoluminescence analysis. With the same reaction time but with different stabilizers, nanocrystals of different diameters were obtained. The average full width at half maximum of the photoluminescence spectra was about 69 nm which indicates that the monodispersity was quite good. The particle size was calculated by Debye-Scherrer equation from XRD data. Further characterization studies such as FT-IR and optical nonlinearity studies on the samples were carried out and the results are discussed. (C) 2011 Elsevier B.V. All rights reserved.

Detaljer

Författare
  • Abd El-sadek Mahmmoud Sayed
  • Ahmad Y. Nooralden
  • S. Moorthy Babu
  • P. K. Palanisamy
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Atom- och molekylfysik och optik

Nyckelord

Originalspråkengelska
Sidor (från-till)2900-2904
TidskriftOptics Communications
Volym284
Utgivningsnummer12
StatusPublished - 2011
PublikationskategoriForskning
Peer review utfördJa