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Electrodeposition and properties of nanocrystalline ZnO films prepared in the presence of anionic surfactant SDS and ionic liquid 1-butyl-3-methylimidazolium methylsulfate |
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| Authors: | V S Vidhya J Vatsala Rani A Ratheesh Kumar R Thangamuthu K R Murali M Jayachandran |
| Affiliation: | 1. Electrochemical Materials Science Division, CSIR?CCentral Electrochemical Research Institute, Karaikudi, Tamilnadu, 630 006, India 2. Fluoro Organics Division, CSIR?CIndian Institute of Chemical Technology, Uppal Road, Hyderabad, 500 607, India 3. Central Instrumentation Facility, CSIR?CCentral Electrochemical Research Institute, Karaikudi, Tamilnadu, India |
| Abstract: | ZnO thin films were potentiostatically electrodeposited on transparent tin oxide conducting glass substrates at ?1.0 V (vs. Ag/AgCl) in the presence of anionic surfactant, sodium dodecyl sulphate (SDS) and hydrophobic ionic liquid, 1-butyl-3-methylimidazolium methylsulfate bmim]CH3SO4]. X-ray diffraction (XRD) investigation confirm the formation of nanocrystalline and stoichiometric ZnO thin films. Scanning electron microscopy (SEM) results reveal that the grain size of the deposited ZnO film is reduced from 85 to 28 nm when small amount of ionic liquid is added to the deposition bath. Photoluminescence study at room temperature shows a clear absorption edge in the ultra violet (UV) region confirming the high quality, nanocrystalline and stoichiometric nature of the deposited ZnO films. |
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