Effect of Mn2+ and Cu2+ co-doping on structural and luminescent properties of ZnS nanoparticles |
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| Affiliation: | 1. School of Physics & Materials Science, Thapar University, Patiala 147004, Punjab, India;2. Central Scientific Instruments Organisation (CSIR-CSIO), Sector 30, Chandigarh 160030, India;1. Laboratory of Synthesis and Structure of Nanomaterials, Department of Chemistry, Faculty of Sciences of Bizerte, University of Carthage, 7021, Jarzouna, Tunisia;2. Institut National des Sciences et Technologies de la Mer, 28 Rue de 2 mars 1934, 2025 Salammbô, Tunisia;3. Laboratory of Environment Biomonitoring, Coastal Ecology Unit, Faculty of Sciences of Bizerta, University of Carthage, Zarzouna, 7021 Bizerta, Tunisia;4. Physical Organic Chemistry Laboratory (UR11ES74), Science Faculty of Sfax, 3018 Sfax, Tunisia;1. Department of Physics, University of Neyshabur, Neyshabur, P. O. Box 9319774400, Islamic Republic of Iran;2. Department of Physics, Shahrood University, Shahrood, P. O. Box 3619995161, Islamic Republic of Iran;3. Department of Physics, Shahid Rajaee Teacher Training University, Tehran, Lavizan, P. O. Box 16788-15811, Islamic Republic of Iran;1. Department of Physics, Punjabi University, Patiala, Punjab, 147002, India;2. Applied Science Department, PEC University of Technology, Chandigarh, 160012, India;3. National Synchrotron Radiation Research Center (NSRRC), Hsinchu, 30076, Taiwan;4. Department of Mechanical Engineering, National Taipei University of Technology, Taipei, Taiwan;5. Department of Physics, Tamkang University, Tamsui, Taiwan;6. Materials Engineering Department, Indian Institute of Science, Bangalore, 560012, India;7. Institute of Physics, Academia Sinica, Taipei, 11529, Taiwan;1. Department of Electronic Engineering, Yeungnam University, Gyeongsan 38541, South Korea;2. School of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, South Korea;3. School of Electronics Engineering, Kyungpook National University, Daegu 41566, South Korea |
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| Abstract: | Undoped and transition metal (Cu, Mn, Cu:Mn) doped ZnS nanoparticles are synthesized by chemical co-precipitation method via an aqueous synthesis route. Synthesized samples are characterized by various techniques for their structural and optical properties. Crystallite size obtained from X-Ray Diffraction (XRD) is 1.68, 1.87, 1.50, 1.42 nm for undoped, Cu, Mn, Cu:Mn doped ZnS nanoparticles. The XRD, High Resolution Transmission Electron Microscopy, and Selected Area Electron Diffraction confirm the evolution of stable hexagonal phase of ZnS nanoparticles at low temperature. Energy Dispersive Spectroscopy confirms the doping of nanoparticles. Blue shift in UV absorbance shows the increase in optical bandgap with decrease in particle size. The Photoluminescence studies exhibit blue, yellow and red emission in visible region. Surface functionalization of nanoparticles is confirmed from Fourier Transform Infra Red spectroscopy. The present samples are tunable in wider range of emission and are prospective candidates for biological labels due to their fluorescent properties. |
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| Keywords: | Co-doping Hexagonal ZnS Fluorescent Nanoparticles biological labels |
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