I am synthesizing ZnO nanowires using electrodeposition in polycarbonate membrane. Therefore, it is inevitable to deposite a metal layer (Au,Ag , etc. ) on one side of the membrane to make a conductive layer for electrodeposition.
After electrodeposition of nanowires in the membrane pores, they are typically released from the membrane by dissolving the membrane in Dichloromethane. However, the supporting metal layer would turn into pieces and particles which would contaminate the nanowires!
Any suggestion to avoid or eliminate this metal particles from synthesized nanowires?
Dear Moein Hadiyan, I see several possible solutions to this problem. The first thing I would try is, for example, to use another metal for precipitation, which can be easily dissolved after precipitation, for example copper. Also, after precipitation, you can try to dissolve a layer of silver, for example, in a solution of nitric acid, only you need to come up with equipment that would allow dissolution on one side of the membrane and control the dissolution time. The second option is the electrochemical etching of silver, which will allow you to remove the required electrochemical thickness of silver or gold, unless of course the bar is not too thick.
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