Can someone please give me details on Doctor's blade method for producing thin films?
The original work - G.P. Smestad, M. Gratzel
Demonstrating electron transfer and nanotechnology: a natural dye-sensitized nanocrystalline energy converter
J. Chem. Educ., 75 (6) (1998), p. 752
"A fine paste of Degussa P25 was made with dilute nitric acid (pH 3–4) using a mortar and pestle. " ->from our work attached
Article Anodized titania nanotube array microfluidic device for phot...
Doctors blade method is used for making thin layers, and I think it is not possible to make thin films with this technique, because thin films are normally deposited by chemical or physical vapor deposition techniques.
Doctors blade is a fine blade, you can cut thin slices, (like you are cutting a carrot with a knife). In equipments such an ultramicrotome you can prepare thin film sections of samples from life science departments. On you tube you can find many live videos on ultramirotome, and they use a very fine knige edge bycleaving normal thick glass.
In tape casting methods also probably they use a doctor's blade to prepare thin layers, please check on this how the tape casting method is developed.
K. Sreenivas
https://scidok.sulb.uni-saarland.de/bitstream/20.500.11880/24807/1/sm200405.pdf
Refer the above pdf for the basic information on Doctor blade technique
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