Journal of Applied Spectroscopy

, Volume 75, Issue 4, pp 576–582

Optical properties of cadmium sulfide nanocrystals obtained by the sol-gel method in gelatin

  • V. M. Skobeeva
  • V. A. Smyntyna
  • O. I. Sviridova
  • D. A. Struts
  • A. V. Tyurin
Article

DOI: 10.1007/s10812-008-9074-x

Cite this article as:
Skobeeva, V.M., Smyntyna, V.A., Sviridova, O.I. et al. J Appl Spectrosc (2008) 75: 576. doi:10.1007/s10812-008-9074-x

Abstract

Based on analysis of optical absorption data for CdS nanocrystals obtained by sol-gel technology in gelatin, we have studied the effect of technological factors (reagent concentrations, gelatin concentration) on the growth process and size distribution of the synthesized nanocrystals. Depending on the reagent concentration, we synthesized CdS nanocrystals with mean radii in the range \( \bar r = 1.9 - 2.4 nm \) . We have shown that for a low gelatin content (1%), nanocrystals of different sizes are formed (1.7 nm and 2.6 nm). With an increase in the gelatin concentration, the size dispersion decreases and nanocrystals of a single mean radius (2.3 nm) are formed. We have established a correlation between the size dispersion and the shape of the photoluminescence spectrum of the CdS nanocrystals.

Key words

nanocrystalcadmium sulfidesol-gel technologyoptical and luminescent propertiesquantum size effectdispersionstabilizer

Copyright information

© Springer Science+Business Media, Inc. 2008

Authors and Affiliations

  • V. M. Skobeeva
    • 1
  • V. A. Smyntyna
    • 1
  • O. I. Sviridova
    • 1
  • D. A. Struts
    • 1
  • A. V. Tyurin
    • 1
  1. 1.Scientific Research institute of PhysicsI. I. Mechnikov Odessa National UniversityOdessaUkraine