What kind of chemical solution is the best to remove ZnO from the surface of CZTSe absorber?

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Karar Abdali

Try by absolute ethanol.

Michael Schmitt

Dear Özden,

I not familiar with CZTSe but I know that ZnO is very well-soluble (not dispersed) even in diluted acids (pH

Özden Demircioglu

Thank you Michael Schmitt.

K. Sreenivas

Best way to etch ZnO films is to use KOH pellets (6 to 8) in warm water (75 to 80 deg C), adding a few drops of HCL (2 to 4 ) drops with a dropper will enhance the etching rate.