Structural, optical and magnetic properties of Ni-doped ZnO micro-rods grown by the spray pyrolysis method
Yilmaz, S., McGlynn, EndaORCID: 0000-0002-3412-9035, Bacaksiz, E., Cullen, Joseph and Chellappan, R.K.
(2012)
Structural, optical and magnetic properties of Ni-doped ZnO micro-rods grown by the spray pyrolysis method.
Chemical Physics Letters, 525-52
.
pp. 72-76.
ISSN 0009-2614
Undoped and Ni-doped ZnO micro-rod arrays were successfully synthesized by the spray pyrolysis method on glass substrates. Analysis of the samples with x-ray diffraction and scanning electron microscopy showed that these micro-rod arrays had a polycrystalline wurtzite structure with a highly c-axis preferred orientation. Photoluminescence studies at both 300 K and 10 K show that the incorporation of nickel leads to a relative increase in the visible blue light band intensity. Magnetic measurements indicated that Ni-doped ZnO samples exhibit ferromagnetic behavior at room temperature, which is possibly related to the presence of point defects.