Comparative study on the effect of precursors on the morphology and electronic properties of CdS nanoparticles

Kevin I Y Ketchemen; Sixberth Mlowe; Linda D Nyamen; Peter T Ndifon; Neerish Revaprasadu

doi:10.3906/kim-2009-9

Comparative study on the effect of precursors on the morphology and electronic properties of CdS nanoparticles

Turk J Chem. 2021 Apr 28;45(2):400-409. doi: 10.3906/kim-2009-9. eCollection 2021.

Authors

Kevin I Y Ketchemen^{1

2}, Sixberth Mlowe^{1

3}, Linda D Nyamen², Peter T Ndifon², Neerish Revaprasadu¹

Affiliations

¹ Department of Chemistry, Faculty of Science and Agriculture, University of Zululand, KwaDlangezwa South Africa.
² Department of Inorganic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé Cameroon.
³ Department of Chemistry, Dar es Salaam University College of Education, University of Dar es Salaam, Dar es Salaam Tanzania.

Abstract

Cadmium dithiocarbamate and cadmium ethyl xanthate complexes were synthesized and characterized by microanalysis, Fourier transform infrared (FT-IR) spectroscopy and thermogravimetric analyses. The complexes were employed as molecular precursors for the fabrication of CdS nanoparticles in hexadecylamine (HDA) and oleylamine (OLA) at a temperature of 250 °C. Spherical and oval shaped particles with sizes ranging from 9.93 ± 1.89 to 16.74 ± 2.78 nm were obtained in OLA while spherical, oval and rod shaped particles with sizes ranging from 9.40 ± 1.65 to 29.90 ± 5.32 nm were obtained in HDA. Optical properties of the nanoparticles showed blue shifts as compared to the bulk CdS, with the OLA capped nanoparticles slightly more blue shifted than the corresponding HDA capped nanoparticles. Results of crystallinity patterns revealed hexagonal phase of CdS.

Keywords: Cadmium complexes; CdS nanoparticles; dithiocarbamate; optical properties; single source precursors; xanthate.