Are N-Type and P-Type Semiconductors Conductive at Room Temperature?

Hi,

Well I am returning to remind some basic concepts about semiconductors physics, and i found myself with a dude cause of 2 different information sources.

One says the N-Type material acts as an insulator 'cause no electrons flux is possible and the another doesn't. What i was thinking is that if the N-Type has free electrons on the conductive band may act as a conductor, furthermore the P-Type due to lack of free-electrons may act as an insulator. I haven't found any precise answer on my books. it seems the N-Type is "more" conductive. but the P-Type is conductive at room temperature? Thank you in advance.

Hi Christiam.

I believe that the conductivity of a material is dependent on the concentration of free carriers and their mobility and both of these are temperature dependent.

Yes exactly, so N-Type material is conductive because of more free electrons concentration whereas P-Type is conductive because of more holes concentration. Both are more conductive than the instrinsic silicon. But the electron mobility is greater than the hole mobility therefore the N-Type material is more conductive than the P-Type true?

http://www.cleanroom.byu.edu/ResistivityCal.phtml

This calculator shows the Resistivity for different dopants. Compare Arsenic (N-type) to Boron (P-type).