coating/ thin film formation of Co3O4 (nano or macro) particles on neutral surface ( PVC polymer). Can anyone suggest the most appropriate technique for such purpose.
I guess you may use RF pulsed magnetron sputtering using oxygen as a working gas and Co as a target. Firstly optimize the oxygen concentration to achieve pure Co3O4 phase. Or deposit pure coblat film and oxidize it thermally provided the heat does not damage the polymer. Or buy a Co3O4 target and try RF magnetron sputtering directly.
Try to decorate nanoparticles with the antiagreating agent (oleic acid for example). Dissolve this in a solvent (dissolved PVC?) and try to make spincoating. The tasc is to elaboarte a solution with nanoparticles (use sonication and microfilter to remove agregates) and spinning condition (acceleration ratio and time, final spinning rpm ratio).
CoO is a stable oxide up to about 600 C, so you can not use sputtering or vapor deposition for producing just Co3O4. Solution based depositing and doctor blading are Ok. For bigger sizes you must prepare a paste and use doctor blading method.
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