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Determination of Chromaticity Coordinates and Bandgaps of III-V LEDs Using Electroluminescence Spectroscopy

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Determination of Chromaticity Coordinates and Bandgaps of III-V LEDs Using Electroluminescence Spectroscopy

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  • Author: Stuart Thomson
In this application note the FS5 Spectrofluorometer equipped with the electroluminescence accessory is used to investigate the emission properties of four type III-V LEDs and determine their bandgaps and chromaticity coordinates. An LED is composed of layers of semiconducting material that are doped to be either p-type or n-type. A p-type semiconductor is one that contains an excess of holes while an n-type has an excess of electrons.

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