Electrodeposition and properties of nanocrystalline ZnO films prepared in the presence of anionic surfactant SDS and ionic liquid 1-butyl-3-methylimidazolium methylsulfate

Autor: A. Ratheesh Kumar, K. R. Murali, Rangasamy Thangamuthu, V. S. Vidhya, J. Vatsala Rani, M. Jayachandran
Rok vydání: 2011
Předmět:
Zdroj: Journal of Materials Science: Materials in Electronics. 22:1460-1465
ISSN: 1573-482X
0957-4522
DOI: 10.1007/s10854-011-0330-0
Popis: 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.
Databáze: OpenAIRE