I tried to make thin films of metal oxides on ITO glass by spin coating, dip coating and doctors blade method. All the procedures failed as metal oxide is coming out in the buffer solution. How to make a mechanically stable thin film?
I think I can answer your question however this sentence is not clear to me at all. "All the procedures failed as metal oxide is coming out in the buffer solution". What does it mean can you rephrase please?
Thank you very much... I want to mean that thin films, prepared by dip coating, spin coating and doctors blade method, are not stable in solution as coming out
Arindam, try to use spray pyrolysis on a hot plate. from my experience thin films made by spray pyrolysis on ITO are more durable than the ones made by sol-gel or doctor blading.
Because I do not know which chemicals you use it is hard to estimate what the problem is. You may try Uv-Ozone cleaning of ITO before deposition. Or you can give a bit more detail on the chemicals and people who has experience can help
Try to make the ITO substrate hydrophilic. You can use Piranha solution or plasma etching. It will also help in increase of the surface area for better adhesion. Check your solution too. Homogeneous or inhomogeneous? It is also important to understand the sintering phenomenon. You can use TGA for this purpose.
I purpose you to deposit metal oxides with physical deposition method, for example sputtering, is easy to use, and It can operate at low temperature and can be used to deposit dense, uniform, homogeneous and reproducible films
I m agree to the proposal, to Uv-Ozone cleaning of ITO before deposition, may be Oxygen plasma too.
Depending on what material you are trying to deposit, a "physical" deposition technique, rather than a "chemical" deposition technique may work better. So, instead of dip or spin-coating of a solution, you may want to look into pulsed laser deposition, sputtering, etc.
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