Zinc Oxide ZnO PLD Target

Material Zinc Oxide Formula ZnO Purity 99.99% Typical Substrates Al2O3, Glass, Quartz, Sapphire, Polymers, Silicon and Silicon Dioxide Related Materials ITO, TiO2, Al2O3, In2O3 Zinc Oxide Targets for Pulsed Laser Deposition Zinc Oxide (ZnO) is a wide bandgap material with high transparency in the visible spectrum, high electron mobility and can be doped with various elements making it a highly studied materials for use in a variety of optoelectronic devices such as light emitting diodes, solar cells, and sensors. It is universally agreed that a ZnO target should be dense (>90 %) which reduces particulate inclusion in deposited films.  Zn-rich Surface of PLD targets After exposure to repeated laser pulses, changes in stoichiometry of the ZnO target have been observed, with the surface becoming zinc rich after irradiation [Claeyssens et al.] It was found by XPS that after hitting the target with a few hundred pulses results in a 5 fold decrease in the oxygen: zinc rati