I have been thinking about 3D printing semiconductors for a while now, just occasionally returning to the topic. Then i see this excellent article on the site here:
And I know that early experimenters in the field of semiconductors used copper oxide (from a wikipedia article), and basically the whole technique of aging metals is making metal rust which is all semiconductors I would guess…
So what if we could make a filament that was a semiconductor in part? Could we make diodes or transistors, even really bad ones?
This time a few minutes ago my mind ran amok with notions of printing a coil of 3mm filament mixing materials like graphene and copperFill, rusting, reprinting, rusting until the desired properties existed.
Or we have PLA with it’s low Tc and our bed goes to 120C, can we melt a stick of PLA onto a rusted copperclad board? would that make a diode?