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An n-type semiconductor.
Bandgap is 3.3-3.6 eV, bound exciton energy is 60meV at normal temperature.
Good luminous function.
Good photoconduction and catalytic activity.
Has good prospect of application in nano device,such as light emitting diode, photoelectric diode, waveguide devices, sensors and test etc.
Electron is easy to be transported because the conductance of nano ZnO is close to dye LOMO.
Has good potentiality of application in DSSC.
Applications and Usages
1. Nano ZnO can absorb more dye because of its large specific surface area and many holes ,so it is widely used in DSSC.
2. It will help solar battery to absorb spectra and improve its efficiency by using nano ZnO to make "nano spear (nanospears)" and hammer on the surface of solar battery.
3. Adding a little of nano ZnO into the electrolyte of alkaline manganese dioxide battery can restrain zinc electrode from self-discharge.