History of Blue LED Consisted of Nitride Semiconductors

研究成果: Conference contribution

抄録

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.

本文言語English
ホスト出版物のタイトル2017 IEEE HISTory of ELectrotechnolgy CONference, HISTELCON 2017
出版社Institute of Electrical and Electronics Engineers Inc.
ページ121-126
ページ数6
ISBN(電子版)9781509065523
DOI
出版ステータスPublished - 2018 11 14
イベント2017 IEEE HISTory of ELectrotechnolgy CONference, HISTELCON 2017 - Kobe, Japan
継続期間: 2017 8 72017 8 8

出版物シリーズ

名前2017 IEEE HISTory of ELectrotechnolgy CONference, HISTELCON 2017

Other

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

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Instrumentation
  • History

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