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Photodiode basics

Photodiode basics

A photodiode is a semiconductor diode that converts incoming photons into electrical current. When it is used as a detector, it is usually connected in photo-conductive mode, which means reverse bias.

Photodiode (A-level only) Lesson

  1. A Level
  2. /Physics
  3. /Photodiode (A-level only)

Step-by-step lessons on AQA A Level Physics Photodiode (A-level only). Each one builds up to exam-style questions. Physics is one of the most mathematically demanding A Levels -- at least 40% of the marks require maths skills at Level 2 (GCSE) standard or above, so build calculation and graph-handling fluency alongside the conceptual content from the start.

Lessons