I needed to make electrodes on ITO glass by etching. I read different ratios of mixing HCl, H2O and HNO3 would etch. I did not follow which one would work for a commercial ITO.
Will it work if I etch with 12M HCl only?
Can someone tell me the working procedure to etch a commercial ITO coated glass?
Maheshwar Reddy Gopu
See
https://www.researchgate.net/post/Wet_etching_of_ITO
https://www.researchgate.net/post/ITO_glass_substrates_cleaning
You may first pattern the ITO with a Kapton tape, then cover it with ZnO powder and add HCL dropwise (under the fume hood).
Good luck
hey Maheshwar, what do you mean with commercial ITO?
Of importance is the thickness (correlates with the resistance and transparency) of the ITO which determines your etching time... I think there are many sources how to etch ITO in a proper way. From my experience the photolithography process requires more detailed instructions depending on the ink etc. you are using (if you focus on the photolithography for your layout).
A commonly cited paper is: The effect of solvent on the etching of ITO electrode - maybe this helps further.
Regards,
Sebastian
Yuri Mirgorod Sebastian Marius Raupp
Thank you for your references.
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