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In order to evaluate the performance of ZnO nanowire field emission display under different temperature, the temperature dependence of field emission current of a fully-sealed diode-structured field emission device using ZnO nanowire cold cathode was studied when the temperature changed from −60°C to 80°C. The pressure inside the device was also measured. It is found that the emission current decreases...
The photosensitivity effect of field emission from zinc oxide nanowires was studied by using a fully-sealed zinc oxide nanowires cold cathode flat-panel device. A LED flat-panel white lighting sources with tunable power was used to irradiate the zinc oxide nanowires. Obvious photosensitivity effect was observed. The field emission current increases with the irradiance power. The emission current increase...
A fully-sealed zinc oxide nanowire cold cathode flat-panel device and a LED flat-panel lighting sources with different wavelengths have been used for investigating the photo-induced effect on field emission from zinc oxide nanowires. The results show that the photo-induced effect using red, orange, yellow, and green light on the field emission from zinc oxide nanowires was not obvious, while the significant...
In this paper, a gold extraction process from an acidic biooxidative residue was studied. Pretreatment by washing the biooxidation residues with a pH = 2 sulphuric acid solution was needed to eliminate the excessive thiourea consumption by iron (III). By adding Na 2 SO 3 powder into the acidic thiourea medium, the consumption of thiourea decreased significantly from 12 g/kg to 3...
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