As there didn't seem to be a lot on this topic, I've put together some class notes on semiconductors and superconductors, written with the new Edexcel AS / A-level physics specification in mind, but applicable to all specifications. A couple of bits are based on the IoP's TAP 110 notes, as is the final superconductor research task (TAP 110-3 - available elsewhere on the site). Mistakes are my own - please let me know if you spot any egregious errors and I will correct.

Graded practise questions on energy efficiency. There is a Foundation (marked L) and Higher set. Sheets are designed to copied two to an A4 page. Markscheme is provided (Foundation questions are included in the same set).