I know we need to get the infinite resistance for the etched part, how can I get thee? isnt it 2 molar HCl and zinc powder?
Do the proper masking by scotch tape or plastic tape (Adhessive) for the area where you dont want to etch. Then spread the Zinc powder and then pore HCl. within a fraction od second it will etch followed by washing.
Hello Saeede,
In order to etch FTO you will need to mask off an area this can be done with photoresists, or tape, or anything that is resistant to the etching solution. Once you have masked off the area you don't want to etch coat the surface in zinc powder and add hydrochloric acid (2M) to the surface. Once the reaction has ended clean away the HCl and Zinc and remove the mask. There is a guide and video that can be found in the link below that is very helpful!
https://www.ossila.com/products/fto-glass-unpatterned#FTO-Glass-Etch
You may find useful to check:
http://informationdisplay.org/IDArchive/2008/April/TransparentConductiveOxidesforDisplayApplicat.aspx
1. Left blank of your desire etching area and paste a tape to the rest FTO Glass
2. Add some Zn powder to FTO glass which is to be etched.
3. Add few micro ml of HCl acid on that Zn powder and wait for few seconds
4. Put off the tape
can I use granular zinc instead of powdered zinc to etch FTO glass?
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