Microstructural,electrical and optical properties of indium tin oxide (ITO) nanoparticles synthesized by co-precipitation method |
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| Authors: | V. Senthilkumar Karuppanan Senthil P. Vickraman |
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| Affiliation: | 1. Department of Physics, Gandhigram Rural University, Gandhigram 624302, India;2. School of Advanced Materials and Science & Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea;1. Department of Electronics, Nehru Arts and Science College, Coimbatore 641 105, India;2. Department of Biotechnology, Sree Narayana Guru College, Coimbatore 641 105, India;1. Department of Physics, Arumugam Pillai Seethai Ammal College, Tiruppattur 630211, India;2. Nano Biochip Research Group, Institute of Nano Electronic Engineering (INEE), Universiti Malaysia Perlis (UniMAP), 01000 Kangar, Perlis, Malaysia;3. Department of Physics, Arignar Anna Government Arts College, Namakkal 637002, India;4. Department of Chemistry, Chendhuran College of Engineering and Technology, Pudukottai 622507, India;5. Sustainable Energy and Smart Materials Research Laboratory, Department of Nanoscience and Technology, Alagappa University, Karaikudi 630002, India;6. Department of Physics, Khadir Mohideen College, Adirampattinam 614701, India;7. Nanotechnology Centre and Department of Physics, University of Bahrain, PO Box 32038, Kingdom of Bahrain;8. School of Physics, Universiti Sains Malaysia, 11800 Penang, Malaysia;9. Electro Chemical Material Science Division, CSIR, Central Electro Chemical Research Institute, Karaikudi 630006, India |
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| Abstract: | In the present study, the synthesis of Tin doped indium oxide (ITO) nanopowder at different compositions (In/Sn = 0, 5, 10, 15 at %) was carried out by co-precipitation method. The decomposition of precipitated indium tin acetylacetonate precursor to form In2O3–SnO2 (Sn1?xInxO2) at 400 °C was confirmed by the thermal and FTIR studies. The changes in strain and grain size of the synthesized particle with respect to dopant concentration were determined from the X-ray diffraction (XRD) analysis. Transmission electron microscopy (TEM) images support to confirm the grain size. The optical properties on ITO nanoparticles were analyzed with UV–visible spectroscopy, and band gap was found to vary from 3.62 to 3.89 eV with Sn dopant concentration. This variation was ascribed to the quantum confinement effect. |
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