I created my own revision notes for all units of the Higher Physics course.
These are revision notes for part of the 3rd unit (Radiation and Matter), section 3 (Optoelectronics and Semi-conductors). I've uploaded all the subsections of this section in different files as they are otherwise too large.
• Parts of a MOSFET transistor
• How a MOSFET works (in detail)
• MOSFET threshold
• Switching a MOSFET on
• MOSFET and current
• MOSFET as an amplifier