Effect of Cr-doping on the structural and optical properties of CdS nanoparticles prepared by chemical precipitation method

M. Thambidurai, N. Muthukumarasamy, Dhayalan Velauthapillai, N. Murugan, Jharna Chaudhuri, Siva Parameswaran, Archis Marathe, S. Agilan, R. Balasundaraprabhu

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Abstract

Undoped and Cr doped CdS nanoparticles have been prepared by chemical precipitation method. X-ray diffraction analysis reveals that the undoped and Cr doped CdS nanoparticles exhibit hexagonal structure and the average particle size of the nanoparticles is in the range of 2.2-3.8 nm. The HRTEM studies show that the average particle size of undoped and Cr doped CdS nanoparticles is in the range of 2-3.7 nm. The compositional analysis results indicates that Cd, S and Cr are present in the samples. From the optical studies it is observed that the absorption edge of the prepared CdS and Cr doped CdS nanoparticles are shifted towards the shorter wavelength region (blue shift) when compared to that of bulk CdS and this shift is due to the quantum confinement effect present in the samples.

Original languageEnglish
Pages (from-to)618-624
Number of pages7
JournalJournal of Materials Science: Materials in Electronics
Volume23
Issue number2
DOIs
StatePublished - Feb 2012

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    Thambidurai, M., Muthukumarasamy, N., Velauthapillai, D., Murugan, N., Chaudhuri, J., Parameswaran, S., Marathe, A., Agilan, S., & Balasundaraprabhu, R. (2012). Effect of Cr-doping on the structural and optical properties of CdS nanoparticles prepared by chemical precipitation method. Journal of Materials Science: Materials in Electronics, 23(2), 618-624. https://doi.org/10.1007/s10854-011-0454-2