Semiconductors: out-of-syllabus check
Optional questions on energy bands, doping and junction devices, beyond the H2 syllabus.
Learning goals
- Explain energy bands, intrinsic conduction and how temperature and light change semiconductor resistance.
- Explain n-type and p-type doping, donor and acceptor levels and majority carriers.
- Explain p-n junction formation and bias, and analyse diode, LED, Zener, rectifier-smoothing, sensor and transistor-switching circuits.
Practice: the questions you got wrong. This doesn't count towards your progress.
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Beyond the syllabus: optional enrichment that does not count towards your progress.