Study of electrophoretic deposition of ZnS:Ag/CNT composites for luminescent applications
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In present work, electrophoretic deposition of novel photoluminescence (PL) composites of ZnS:Ag/carbon nano tube (CNT) on the surface of Al substrates was investigated. In deposition process, CNT concentration and applied coating voltage were studied as the effective parameters. Deposition weight showed the reverse relationship with the amount of concentration and direct dependence to the applied voltages. Furthermore, current densities were decreased with increasing CNT concentrations up to 12.5 wt%, and increased strongly with further CNT concentrations. Moreover, applied voltage and current density show the same positive trends. Other results revealed that PL emission intensities were significantly quenched with increasing the CNT concentration. Nevertheless, PL intensities were improved with increasing applied voltage up to 300 V, but reduced with further voltage increase. Morphological studies of ZnS:Ag/CNT composites confirmed that the intertwined architecture was formed by wrapping of CNTs on the surfaces of ZnS microsize particles.
KeywordsApplied Voltage Ceramic Matrix Composite Electrophoretic Deposition Deposition Weight Magnesium Nitrate Hexahydrate
- 2.M. Endo, M.S. Strano, P.M. Ajayan, Potential applications of carbon nanotubes. In Carbon Nanotubes, Topics in Applied Physics, vol. 111, ed. by A. Jorio, G. Dresselhaus, M.S. Dresselhaus (Springer-Verlag, Berlin Heidelberg, 2008), pp. 13–62 Google Scholar
- 6.J. Echeberria, N. Rodríguez, J. Vleugels, K. Vanmeensel, A. Reyes-Rojas, A. Garcia-Reyes, C. Domínguez-Rios, A. Aguilar-Elguézabal, M.H. Bocanegra-Bernal, Hard and tough carbon nanotube-reinforced zirconia-toughened alumina composites prepared by spark plasma sintering. Carbon 50, 706–717 (2012)CrossRefGoogle Scholar
- 13.M.K. Singla, H. Singh, V. Chawla, Thermal sprayed CNT reinforced nanocomposite coatings—a review. J. Miner. Mater. Charact. Eng. 10, 717–726 (2011)Google Scholar