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halajan M, dorranian D, chehrghani A, Mashayekhi I. The investigation of PVA nanocomposite layers contained ZnSe nanoparticles synthesized with laser ablation. ICOP & ICPET _ INPC _ ICOFS 2014; 20 :889-892
URL: http://opsi.ir/article-1-358-en.html
URL: http://opsi.ir/article-1-358-en.html
1- Iranian National Centre for Laser Science and Technology (INLC)
2- Plasma Physics Research Center, Science and Research Branch, Islamic Azad University
2- Plasma Physics Research Center, Science and Research Branch, Islamic Azad University
Abstract: (5285 Views)
In this paper nanocomposite thin films of ZnSe nanoparticles (NPs) embedded in PVA were produced and their properties were investigated. The ZnSe NPs has been synthesized by pulsed laser ablation of ZnSe bulk target immersed in distilled water using a 1064 nm, high frequency (Q-Switched) Nd:YAG laser. The crystal size was about 14.4 nm. NPs were combined by PVA with 5, 10 and 13 weight percent and coated on glass substrates. X-ray diffraction analysis indicates that NPs in layers were crystalline (zinc blend). The optical band gap of nanocomposite thin films has been studied by UV-Vis optical absorption spectroscopy. Accordingly, the corresponding optical band gaps (Eg) decrease by increasing the concentration of NPs (2.92-2.80 eV). The surface roughness was studied using AFM analysis for each layer
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