Ge etching?

Candace Kay Chan candacec at
Tue Aug 14 16:10:57 PDT 2007

Hi all,
I was just wondering if anyone knew of a good way to selectively etch 
Ge. My sample has Ge, Cu3Ge, and Cu. I only want to remove the Ge. Some 
of the more oxidizing solutions will dissolve Cu faster than Ge, and I 
haven't found KOH to be effective.

Thanks in advance,

Candace K. Chan
Ph.D. Student, Department of Chemistry
Stanford University
McCullough Building Room 209
476 Lomita Mall
Stanford, CA 94305

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