Dear Dr. Nebatti Abdelkader

Have a nice time and good day

Why not?? ... Using the same solution depends on whether you will deposit the films on the same substrate at the same deposition conditions or you will change them.

I think you can use the same solution that used before If the deposition conditions and the used substrate are the same,

Good luck

Dear Nebatti

It is possible to use same precursor solution for both dip coating and spray pyrolysis. But in order to better fine tune properties (organic impurities, morphology of films  and concerned opto-electronic characterstics )of spray pyrolysed coatings, revision of quantity and concentartions of both  solvents and carbon based binders need to be chosen carefully as compared to dip coating.

Dear Nebatti

As said before the metal salt precursors can be the same. One thing to consider is the viscosity of your solvent/solution as most spray nozzles need low viscosity solutions.

Ciao Karsten

Thank you very much Dr.Ahmed Saeed Hassanien, Dr Badgujar, Dr Karsten Fleischer

Dear Nebatti,

Please be careful that spray pyrolysis of ZnO requires high temperatures (over 500 C). So I strongly suggest you checking the flashpoint of your solvent (if it is not water) to prevent possible accidents.

All the best.

Thank you so much Dr Erkan

thank you i really appreciate it Dr Zaidi

Well, in a broad manner you can, of course, use the same sol-gel solution for spray pyrolysis, given the gel could flows along the spray nozzle. The results... errr... ummm... will be really very disappointing. I suggest you to use spray solutions prepared to THIS purpose, in order to get GOOD results. Don't worry about the NEED to CHANGE your solutions. Preparation of them for spray pyrolysis use are easier than those used in sol-gel. You only need to ensure that your solute will be completely dissolved into your solvent, and on this matter any good chemist could help you, as this is a common matter for them.

you can use the carefully solution. the optimizations for solution molar ratio of Zn salts, temperature, distance from nozzle to the substrate distance and rate of deposition are very important parameters.