Formation of ZnSe and CdS quantum dots via laser ablation in liquids |
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| Institution: | 1. P.N. Lebedev Physical Institute of the Russian Academy of Sciences and P.N.Lebedev Research Center in Physics, 53, Leninsky prospect, Moscow 119991, Russia;2. Wave Research Center, General Physics Institute of the Russian Academy of Sciences, 38, Vavilov street, Moscow 119991, Russia;3. Laser Materials and Technology Research Center, General Physics Institute of the Russian Academy of Sciences, 38, Vavilov street, Moscow 119991, Russia;1. Department of Mechanical Engineering, Sathyabama University, Chennai-600 119, Tamil Nadu, India;2. Department of Mechanical Engineering, Panimalar Engineering College, Chennai-602103, Tamil Nadu, India;3. Department of Physics, Sree Sastha Institute of Engineering and Technology, Chennai-600 123, Tamil Nadu, India;1. Technical Chemistry I and Center for Nanointegration, Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitaetsstrasse 7, 45141 Essen, Germany;2. Dausinger & Giesen GmbH, Rotebühlstrasse 87, 70178 Stuttgart, Germany |
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| Abstract: | Formation of nanoparticles of both ZnSe and CdS under ablation of corresponding bulk semiconductors in liquid environment (diethyleneglycol, ethanol, etc.) using radiation of a Cu vapor laser is reported. X-ray diffraction (XRD), resonance Raman scattering (RRS), and transmission electron microscopy (TEM) confirm that the nanoparticles are crystalline and have average size of ca 10–20 nm. RRS of nanoparticles are characterized by several peaks multiple to frequency of corresponding phonon (LO replicas). |
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