Light-emitting diode

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MitoPedia

Light-emitting diode

Description

A light-emitting diode (LED) is a light source (semiconductor), used in many every-day applications and specifically in fluorometry. LEDs are available for specific spectral ranges across wavelengths in the visible, ultraviolet, and infrared range.

Abbreviation: LED



MitoPedia methods: Fluorometry, Spectrophotometry 


MitoPedia O2k and high-resolution respirometry: O2k hardware 



'Today’s LEDs, which come in several colors, evolved from Holonyak’s seminal work in 1962. At a time when other researchers focused on infrared light, Holonyak invented a method to synthesize gallium arsenide phosphide (GaAsP) crystals, which exhibited wavelengths in the visible spectrum. Using this "tunable" alloy, Holonyak crafted the first practical LED in 1962 (the red LED). “I wanted to work in the visible spectrum where the human eye sees, and everybody else was working in the infrared,” remarked Holonyak.' - "Nick Holonyak, Jr. 2004 Lemelson-MIT Prize Winner". Lemenson-MIT Program. Retrieved 2012-02-29
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