History of Blue LED Consisted of Nitride Semiconductors

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The electric energy used for illumination is said to be a quarter of total electric energy consumed on the earth. It is extremely effective to raise the luminous efficiency in order to realize the sustainable society. Furthermore, in the case of night illumination by using electric batteries charged from solar cells in the developing countries where electricity is not supplied, the high efficient emission is indispensable. The history of electrical illumination begins with an incandescent electric lamp. By inventing a fluorescent lamp, the luminous intensity has been improved from 15 Im/W to 95 lm/W, Presently., white light-emitting-diodes (LEDs) consisted of nitride semiconductors have been widely used because their efficiency is at least twice higher than that of a fluorescent lamp. The key device for realizing a white LED is a blue one. In this paper, the history of blue LED consisted of nitride semiconductors is reviewed.

Original languageEnglish
Title of host publication2017 IEEE HISTory of ELectrotechnolgy CONference, HISTELCON 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages121-126
Number of pages6
ISBN (Electronic)9781509065523
DOIs
Publication statusPublished - 2018 Nov 14
Event2017 IEEE HISTory of ELectrotechnolgy CONference, HISTELCON 2017 - Kobe, Japan
Duration: 2017 Aug 72017 Aug 8

Publication series

Name2017 IEEE HISTory of ELectrotechnolgy CONference, HISTELCON 2017

Other

Other2017 IEEE HISTory of ELectrotechnolgy CONference, HISTELCON 2017
CountryJapan
CityKobe
Period17/8/717/8/8

Keywords

  • GaN
  • Nitride semicondcutor
  • blue LED
  • white LED

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Instrumentation
  • History

Fingerprint Dive into the research topics of 'History of Blue LED Consisted of Nitride Semiconductors'. Together they form a unique fingerprint.

Cite this