Is there any method for preparation of thick TiO2 layer by using TiO2 nano-powder?

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Ponniah Vajeeston

Hi!

There are several methods for preparing thick TiO2 layers using TiO2 nano-powder. Some common methods include:

Sol-gel method: This method involves the hydrolysis and condensation of titanium alkoxide precursors in the presence of water and acid to form a sol, which is then deposited on a substrate to form a thin film. This method can be used to deposit TiO2 layers with thicknesses up to several micrometers.

Spin-coating: This method involves depositing a solution of TiO2 nano-powder onto a substrate and spinning the substrate to distribute the solution evenly and form a thin film. This method can also be used to deposit TiO2 layers with thicknesses up to several micrometers.

Spray pyrolysis: This method involves spraying a solution of TiO2 nano-powder onto a heated substrate, where the solvent evaporates and the TiO2 particles are deposited to form a thin film. This method can be used to deposit TiO2 layers with thicknesses up to several micrometers.

Electrophoretic deposition (EPD): This method involves depositing TiO2 nano-powder suspended in a liquid medium onto a substrate using an electric field. This method can be used to deposit TiO2 layers with thicknesses up to several micrometers.

Atomic layer deposition (ALD): This method uses a series of precursors to deposit thin layers of material atom by atom. This method can be used to deposit TiO2 layers with thicknesses up to several micrometers.

It is worth mentioning that the thickness of the deposited layer can be increased by repeating the process for multiple times.

Yuriy Kudriavtsev

Dear Ponniah Vajeeston,

Thank you for your comments. Unfortunately, methods 1-3 and 5 cannot be used in my case. But I'll study about electrophoretic deposition? It looks possible.