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Stanley514
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Which materials exhibit good electron and hole conductivity in the same time?
And which of them are cheap and available?
And which of them are cheap and available?
Something much better than intrinsic semiconductors?I need hole conductivity comparable to electron conductivity in metals.And electronic conductivity too.Silicon meets all of the requirements you have listed.
Seem to be wrong.Tungsten conducts electricity through holes and this is shown through the Hall coefficient being negative.
www.phys.utk.edu/labs/modphys/Hall Effect.pdfThe negative Hall coefficient indicates that electrons are the charge carriers
New concepts are not allowed to reveal and discuss here.what do you need this for? Understanding the question better will (hopefully) result in better answers...
You may be looking for a semimetal.Which materials exhibit good electron and hole conductivity in the same time?
And which of them are cheap and available?
Which materials exhibit good electron and hole conductivity in the same time?
And which of them are cheap and available?
Grey tin is a narrow gap semiconductor, not a semimetal.
Are you sure?
No.
“Grey tin has the same crystalline structure as that of the diamond allotrope of carbon. It behaves as if it was a semiconductor (with a band gap of 0.08 eV) but has the electronic band structure of a semimetal.[361] It is sometimes referred to as a metalloid.”
No, the type of charge carriers is independent of the field. You only need the field for diagnostic purposes. However I would be careful with the interpretation of the Hall coefficient in terms of nature of the charge carriers.