GROWTH AND CHARACTERIZATION OF CdS AND CdS:Ag LUMINESCENT QUANTUM DOTS DISPERSED IN SOLUTION-Reference-Cited by-同舟云学术

GROWTH AND CHARACTERIZATION OF CdS AND CdS:Ag LUMINESCENT QUANTUM DOTS DISPERSED IN SOLUTION

Published:2010-10-10 Issue:25 Volume:24 Page:2591-2599
ISSN:0217-9849
Container-title:Modern Physics Letters B
language:en
Short-container-title:Mod. Phys. Lett. B

Author:

YOUSEFI M. H.¹,ABDOLHOSSEINZADEH A. A.²³,FALLAH H. R.³⁴,KHOSRAVI A. A.⁵

Affiliation:

1. Physics Department, Malek Ashtar University of Technology, Isfahan, Iran

2. Nano Gostare Kavire Yazd Co., Yazd, Iran

3. Physics Department, University of Isfahan, Isfahan, Iran

4. Quantum Optics Research Group, University of Isfahan, Isfahan, Iran

5. Department of Physics, Shahed University, Tehran, Iran

Abstract

A fast-chemically capping method in aqueous solution was developed to synthesize CdS and CdS : Ag luminescent nanoparticles and particles with sizes between 2–4 nm. The achieving of well-dispersed and narrow-sized particles in colloidal solution and also, high stability of them using mercaptoethanol (ME) as a capping agent was established. Quantum confinement effect was observed in UV-vis absorption as well as in PL spectra. PL spectroscopy also showed green emission and Ag dopants caused a faster energy transfer between CdS inter-bands. XRD patterns exhibited that both cubic and hexagonal phases exist in solutions. Ultimately, TEM images captured from QDs displayed the shapes of nanoclusters which are almost spherical.

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217984910024882

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