Well Oriented ZnO Nanorods Array: Negative Resistance and Optical Switching

Abstract

Well-oriented ZnO nanorods (NRs) arrays were grown on Si, alumina, quartz, and FTO substrates through a ZnO seed layer followed by low temperature wet chemical process. The influence of sputtered ZnO seed layer thickness (100, 50, 32, and 16 nm), annealing temperature and CuO x coverage on the characteristics of ZnO NRs were investigated in this study. The crystalline structural, chemical, morphological, optical, and electrical properties of ZnO NRs arrays were studied by X-ray diffraction (XRD), field emission-scanning electron microscopy equipped by energy dispersive X-ray spec-* Dr. A. Rahmati

Ag Incorporated ZnO Nanorods Array/ZnSe Heterostructure

“…18,22,23 Briefly, the seed layer was deposited by RF magnetron sputtering. 18,19,23,24 The ZnO NRs were washed with de-ionized water to clean the surface and baked at 80°C. Secondly, Ag nanosheet was deposited on the ZnO NRs surface by DC magnetron sputtering with 0-25nm in thickness.…”

Hetero CuOx/ZnO micro-/nanostructure: Carbothermal reduction–vapour phase transport

“…ZnO micro-/nanostructures have attracted a great interest owing to their excellent properties and their potential applications as nanoscale electronic, photonic, field emission, sensing, energy conversion and piezoelectric devices [1][2][3][4][5][6][7]. Several strategies have been developed to synthesize ZnO micro-/nanostructures such as vapour-phase transport [8], metalorganic vapour-phase epitaxy [9], pulsed laser deposition [10], various wetchemistry methods [5,11], and magnetron sputtering [4,12].…”

“…Various geometrical morphologies of ZnO micro-/nanostructures have been fabricated, such as rods [4,5,13], wires [8,14,15], tubes [16], combs [8], tetrapods [17], etc. However, the morphology and size control of ZnO micro-/nanostructures is still an issue and many groups have focused on this problem.…”