The Effect of Substrate Temperature on the Room Temperature Ferromagnetism of Co-Doped ZnO Thin Films

Structural and Photoluminescence Properties of Co-Doped ZnO Nanorods Prepared by RF-Magnetron Sputtering

“…Its noteworthy that the crystallite size of Co-doped ZnO nanostructure was higher than that of undoped, indicating that the Co doping enhance the crystal quality of the ZnO nanostructure. This result is consistent with those of previous studies [4,5,13]. Fig.…”

“…Co-related impurity phases such those of metallic Co, cobalt oxides, and other compounds was not detected in the doped samples, indicating that Co 2+ replace Zn 2+ in the ZnO lattice without changing the wurtzite structure [7,11]. The lattice parameter ( ) and average crystallite size ( ) of the ZnO nanostructure were calculated using the XRD data and the following formulae [5,8,12], respectively:…”

“…In addition, it has potential applications in solar cells, electrodes, sensors, transparent UV protection films, UV light emission, surface acoustic waves, and magneto-optical devices [1][2][3]. The introduction of transition metals such as Co in the ZnO structure changes the electrical, optical, and magnetic properties [1,4,5], which are important for ZnO applications. Thus, the appropriate amount of Co-doping can optimize both the optical and magnetic properties without changing the ZnO crystal structure [1].…”

“…Thus, the appropriate amount of Co-doping can optimize both the optical and magnetic properties without changing the ZnO crystal structure [1]. However, most studies have focused on the magnetic properties of the Co-doped ZnO nanostructure because of its potential application in spintronic devices [2,5,6], while a few studies have been reported on the optical properties of Co-doped ZnO thin films [7]. Several techniques can be used to synthesize ZnO nanocrystals, such as microwave-assisted chemical bath deposition (CBD), sol-gel, pulsed laser deposition, ultrasonic assisted chemical vapor deposition, RF-magnetron sputtering, molecular beam epitaxy (MBE), and vacuum arc deposition [2-6, 8, 9].…”

Numrical Simulation on Electric Field of Galvanic Corrosion for U-Nb Alloy and 45-Steel

“…Moreover, the couple electric potential and current are measured in different environment by electrochemistry experiment when uranium alloys are coupled with other materials. Wang et al [4,5] have measured the electric potential and current of U/Ni and U/Nb galvanic couple, where uranium metal is taken as anode in the galvanic couples and will corrode preferentially in 50μg/g Clelectrolyte solution. These investigations for galvanic corrosion are based on the electrochemistry experiment.…”