Definition
A light source that produces light as a result of recombination of positively charged holes and negatively charged electrons at the junction of inorganic, solid-state, p- and n-type semiconductor material.
Solid-State LED Light Sources
LEDs are solid-state radiators where the light is created inside solid-state material [1,2,3]. Common semiconductor diode chips, used today in so many electrical circuits, all use much the same technology. The light-radiating diode versions are called light-emitting diodes or LEDs. The name LED is commonly used for light-emitting diodes made of inorganic semiconductor material; they are point light sources. Light-emitting diodes made of organic semiconductor material are referred to as OLEDs; they are planar light sources. A separate chapter deals with OLEDs.
Until the mid-1990s of the last century, LEDs had a low lumen output and low efficiency, making them only suitable as small...
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References
Schubert, E.F.: Light Emitting Diodes, 2nd edn. Cambridge University Press, Cambridge, UK (2006)
Mottier, P.: Led for Lighting Applications. Wiley, Hoboken (2010)
DiLaura, D.L., Houser, K., Mistrick, R., Steffy, G.: IES Handbook, 10th edn. Illuminating Engineering Society of North America, IESNA, New York (2011)
Van Bommel, W.J.M., Rouhana, A.: Lighting Hardware: Lamps, Gear, Luminaires, Controls. Course Book. Philips Lighting, Eindhoven (2012)
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van Bommel, W. (2020). Light-Emitting Diode, LED. In: Shamey, R. (eds) Encyclopedia of Color Science and Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27851-8_131-9
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DOI: https://doi.org/10.1007/978-3-642-27851-8_131-9
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Latest
Light-Emitting Diode, LED- Published:
- 20 October 2019
DOI: https://doi.org/10.1007/978-3-642-27851-8_131-9
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Original
Light-Emitting Diode, LED- Published:
- 06 October 2014
DOI: https://doi.org/10.1007/978-3-642-27851-8_131-8