hot probe semiconductor band theory
The best "tutorials" are in books for electronics.
Sendra/Smith Microelectronic Circuits have a simple yet very good presentation for semiconductors.
If you want something more advanced, with more explained mathematical psice models I suggest Lacker/Sansen " Design of Analog Integrated Circuits and Systems". Also very good and with layout examples.
If you really want to study semiconductors from scratch and go directly to the physical model, understand how carriers movea nd way, what happens in solid state then my friend one book is for you:
Tsividis " The MOS Transistor". But this is if you want to go into tinny details starting from the physics of a semiconductor and gradually upgrade to the basic MOST or more complex MOST structures.
Hope I helped,
D.