I have ZnO nanoparticle powder and I want to make a film of ZnO on FTO. Suggest me any binder that I can use for spin coating of ZnO on FTO. After top electrode deposition I want to study the I-V characteristics of ZnO film.
See for "binders for supercapacitor electrode" - there are many different recipes to fix active material on condactive substrate.
Most popular mixture is PVDF:Carbon:Active material = 10%:10%:80%
Instead of PVDF, you can use PVP (PVA/PVB/MC and their combinations)
But, if you don't care for mechaical properties, just dissolve ZnO nanoparticles in some organic solvent, such as alcohols (ethanol, methanol, isopropanol and others) with addition of some viscous agent (exp: glycerol or ethylene glycol) to control the viscosity and thickness, respectively).
Then coat it to the substrate in several layers (depending on the final desired thickness). Do not forget about intermediate and final annealing steps.
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