1. The problem statement, all variables and given/known data This isn't a problem as such. This is about a practical I did, to verify the non-classical model of silicon conductivity (which increases with temperature) and then to calculate the band gap energy of silicon. 2. Relevant equations This was the main equation of the model we were verifying... R=Ro*exp(To/T) where To=Eg/2kB kB = Boltzmann constant Eg = band gap energy Of course this only works in the intrinsic region. I'm trying to think of other physical interpretations of the data for a certain section of the report and I was wondering if anybody knew where I could find a better model of semiconductor conductivity, perhaps a book or a website. That is, if there is a better model. I don't know if the model is the accepted one, as I haven't been taught about the topic! Thanks, Jessica.