Nanomaterials based on CdS nanoparticles in polyethylene matrix |
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| Authors: | M. V. Radchenko G. V. Lashkarev V. I. Sichkovskyi A. A. Arshakuni S. P. Gubin V. O. Yuhymchuk V. Domukhovski T. Story Yu. P. Piryatinskii G. Yu. Yurkov |
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| Affiliation: | (1) Department of Physics, Coimbatore Institute of Technology, Coimbatore, India;(2) Department of Mechanical Engineering, Coimbatore Institute of Technology, Coimbatore, India;(3) Department of Physics, PSG College of Technology, Coimbatore, India;(4) Department of Physics, Erode Sengunthar Engineering College, Erode, India; |
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| Abstract: | The synthesis of CdS nanoparticles stabilized in the bulk of a polyethylene matrix is described. The size of synthesized nanoparticles is determined by means of transmission electron microscopy. The composition of nanoparticles is defined by X-ray phase analysis. It is shown that the variation of the process-dependent parameters during synthesis of nanoparticles in a polymer + oil solution melt results in the formation of CdS nanoparticles with average sizes of 4.9, 5.4, and 6.2 nm with a reasonably narrow size distribution and well-formed structure. The optical properties of synthesized nanomaterials are investigated. The investigation of Raman scattering reveals softening of the LO-phonon mode with decreasing CdS nanoparticle size. A broad high-energy band of photoluminescence connected with the exciton annihilation in conditions of size quantization is detected. |
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