Diode is an electronic component that allows the passage of current in only one direction. A light emitting diode (LED) is an electronic semiconductor diode that emits a single wavelength of light when electric current passes through it. A photodiode is a semiconductor diode that allows current to flow when it absorbs photons (light).
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(2009). Diode. In: Li, S.Z., Jain, A. (eds) Encyclopedia of Biometrics. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-73003-5_436
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DOI: https://doi.org/10.1007/978-0-387-73003-5_436
Publisher Name: Springer, Boston, MA
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