If I synthesize nanoparticles and then use it to deposit thin films using thermal deposition technique, then will it generate good results.
Dear Sandip,
Another way, you could prepare a dispersion from nanoparticles powder, and then using tape-casting method to obtain thick film, or spin coating for thin film, based on particle size. Its important control the solution or dispersion viscosity.
Bests
Dear Sandip,
In thermal evaporation techniques usually the material is melted and then evaporated which then get deposited on the substrate.(Certain materials sublime) Hence I don't think that there will be any difference between the evaporation of bulk materials and its nano particles. If you want to prepare a thin film of nano particles better methods are as suggested by Luis Da Silva.
Regards,
Dear Sandip,
you also can techniques such as screen printing or dip-coating, but the parameter cited above by Da Silva are important as you can check in the Brinker's book about Sol-Gel deposition process. Best.
Dear All,
Thank you so much for your suggestions.
Actually the facility that I have in my institute is Thermal Evaporation. I have synthesized SnO2 nanoparticle of size 50nm approx. Now I wanna deposit the thin film. So If I use these nano samples for the deposition by thermal evaporation then will it be a commendable work??
Dear Sandip. Will you use these films for optical or electrical applications? If you're interested in optical properties, the thermal evaporation technique could give an interesting results. However, You could prepare for both way (suspension and thermal evaporation) comparing the results. Bests.
I have some organic powder samples for which I am interested in checking optical and electrical properties. How can I proceed?
Pranita.. For electrical properties preferably make pellets and do an impedance study which gives you a lot of information about the conductivity properties. As for DC study, IV CURVES can be studied as well using pellets... For the optical properties you can disperse the sample in suitable solvent for basic uv vis spectroscopy.. Directly use the powder for ftir studies in suitable setup... Moreover it depends on the aim of your experiment from the application point of view.. Depending on which u conduct a certain characterization
For insoluble powder, you can use screen printing method. I don't think making dispersion and spin-coating onto thin film substrate will give a homogeneous and uniform layer.
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