The e-ILV provides free access to all the terms and definitions contained in the international standard CIE S 017:2020 ILV: International Lighting Vocabulary, 2nd edition.

To search for another term please use  "Back to the list" to return to the main page or the e-ILV.

For the complete set of terms and definitions CIE S 017:2020 can be purchased from the CIE Webshop. Members of a CIE National Committee or Associate National Committee have access to a 66,7 % discount on the purchase price of the standard.


LED junction

transition layer between semiconductor regions of different electrical properties, or between a semiconductor and a layer of different type, of an LED

[SOURCE: IEC 60050-521:2002, 521-02-72, modified – Term qualified by "LED", and "being characterized by a potential barrier impeding the movement of charge carriers from one region to the other" replaced by "of an LED" in the definition.]

Publication date: 2020-12
Copyright © CIE 2020. All Rights Reserverd.