Synthesis of Ni doped ZnO nanostructures by low temperature wet chemical method and their enhanced field emission properties

Amit Kumar Rana; Prashant Bankar; Yogendra Kumar; Mahendra A. More; Dattatray J. Late; Parasharam M. Shirage

doi:10.1039/C6RA21190A

paper

Synthesis of Ni doped ZnO nanostructures by low temperature wet chemical method and their enhanced field emission properties

arXiv:1708.09572 · doi:10.1039/C6RA21190A

Abstract

In this study, we report the enhancement in field emission (FE) properties of ZnO nanostructure by Ni doping at the base pressure of ~1 x 10-8 mbar, which were grown by the simple wet chemical process. ZnO nanostructure shows single crystalline wurtzite structure up to Ni 10% doping. FESEM represents change in the nanostructure morphology from thick nanoneedles to nanoflakes via thin nanorods with increase in Ni doped ZnO. The turn-on field required to draw a field emission (FE) current density at 1Î¼A/cm2 is found to be 2.5, 2.3, 1.8 and 1.7 V/Î¼m for ZnO(Ni0%), ZnO(Ni5%), ZnO(Ni7.5%) and ZnO(Ni10%), respectively.