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

Authors : Kevin I. Y. KETCHEMEN, Sixberth MLOWE, Linda D. NYAMEN, Peter T. NDİFON, Neerish REVAPRASADU

Pages : 400-409

View : 15 | Download : 6

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Cadmium dithiocarbamate and cadmium ethyl xanthate complexes were synthesized and characterized by microanalysis, Fourier transform infrared insert ignore into journalissuearticles values(FT-IR); spectroscopy and thermogravimetric analyses. The complexes were employed as molecular precursors for the fabrication of CdS nanoparticles in hexadecylamine insert ignore into journalissuearticles values(HDA); and oleylamine insert ignore into journalissuearticles values(OLA); at a temperature of 250 degrees 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, dithiocarbamate, xanthate, single source precursors, CdS nanoparticles, optical properties