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Cited 527 time in webofscience Cited 560 time in scopus
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White light-emitting diodes: History, progress, and future SCIE SCOPUS

Title
White light-emitting diodes: History, progress, and future
Authors
Cho, JPark, J.HKim, J.KSchubert, E.F.
Date Issued
2017-03
Publisher
Wiley Online Library
Abstract
About twenty years ago, in the autumn of 1996, the first white light-emitting diodes (LEDs) were offered for sale. These then-new devices ushered in a new era in lighting by displacing lower-efficiency conventional light sources including Edison's venerable incandescent lamp as well as the Hg-discharge-based fluorescent lamp. We review the history of the conception, improvement, and commercialization of the white LED. Early models of white LEDs already exceeded the efficiency of low-wattage incandescent lamps, and extraordinary progress has been made during the last 20 years. The review also includes a discussion of advances in blue LED chips, device architecture, light extraction, and phosphors. Finally, we offer a brief outlook on opportunities provided by smart LED technology.
URI
https://oasis.postech.ac.kr/handle/2014.oak/37918
DOI
10.1002/LPOR.201600147
ISSN
1863-8880
Article Type
Article
Citation
LASER & PHOTONICS REVIEWS, vol. 11, no. 2, page. 1600147, 2017-03
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김종규KIM, JONG KYU
Dept of Materials Science & Enginrg
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