Semiconductor Physics, Quantum Electronics & Optoelectronics. 2007. V. 10, N 1. P. 030-032.

A facile route for preparation of CdS nanoparticles
M. Maleki1, M. Sasani Ghamsari2, Sh. Mirdamadi1, R. Ghasemzadeh1

1Department of Metallurgy and Material Engineering, Iran University Science & Technology
2Solid State Laser Division, Laser Research Center, 11365-8486, Tehran, Iran E-mail:

Abstract. CdS nanoparticles have been synthesized by a chemical reaction route using ethylenediamine as a complexing agent. The nanoparticles were characterized using techniques such as X-ray powder diffraction (XRD), scanning electron microscope (SEM), UV–VIS absorption spectroscopy, and photoluminescence spectroscopy. The absorption edge for the bulk hexagonal CdS is at 512 nm (2.42 eV). Comparing with the bulk CdS, it is believed that the blue shift in the absorption peak was caused by the quantum confinement effect. Photoluminescence measurements indicate CdS nanoparticles show fluorescence band with a maximum close to 315 nm.

Keywords: cadmium sulfide, nanoparticle, X-ray diffraction, absorption spectroscopy, photoluminescence spectroscopy.

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