Investigation of structural,optical and morphological properties of copper doped zinc sulphide nanoparticles |
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| Affiliation: | 1. University of the Basque Country UPV-EHU, Bilbao, Spain;2. Ural Federal University, Ekaterinburg, Russia;3. BCMaterials, Bilbao, Spain;1. Department of Electrical Engineering, Incheon National University, Incheon 406772, Republic of Korea;2. Applied Device and Material Lab., Device Technology Division, Korea Advanced Nanofab Center (KANC), Suwon 443270, Republic of Korea;1. School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, PR China;2. Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong, 264003, PR China;1. The Key Laboratory of Advanced Polymer Materials of Shanghai and Key Laboratory of Specially Functional Polymeric Materials and Related Technology, Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, PR China;2. Qinghai University Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining 810016, Qinghai, PR China;1. Photoelectric and Energy Device Application Lab (PEDAL) and Department of Electrical Engineering, Incheon National University, Incheon 406772, Republic of Korea;2. Measurement and Analysis Division, National Nanofab Center (NNFC), Daejeon 305806, Republic of Korea;3. Department of Industrial and Management Engineering, Incheon National University, Incheon 406772, Republic of Korea;4. Department of Physics, Aditanar College of Arts and Science, Tamilnadu 628216, India |
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| Abstract: | Semiconductor nanoparticles doped with transition metal ions can influence the transition probabilities and electronic structure. The undoped and copper doped zinc sulphide nanoparticles with various concentrations are synthesized by wet chemical co-precipitation method. These nanoparticles are characterized by using X-ray powder diffraction (XRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Selected Area Electron Diffraction (SAED), UV–visible (UV–vis) absorption spectroscopy, Fourier Transform Infrared (FT-IR) Spectroscopy, conductivity measurement and time-resolved photoluminescence studies. X-ray powder diffraction analysis reveals that the synthesized samples have cubic zinc blende structure. The Scanning Electron Microscope shows the synthesized nanoparticles are agglomerated. The UV–visible spectra reveal the absorption edge is red shifted. The FT-IR spectra show vibrational peaks around 617 cm−1 which indicate the presence of Cu–S stretching modes. The AC conductivity measurement confirms the semiconducting nature and shows a marked increase in conductivity as the doping concentration of copper increases. The photoluminescence shows that the emission at 426 nm may be due to transition from the conduction band to the zinc vacancies. These transition metal ions doped semiconductor nanoparticles have important applications in solid state lighting, imaging, and other photonic devices. |
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| Keywords: | Nanoparticles XRD TEM UV–vis PL studies |
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