Remote-type, high-color gamut white light-emitting diode based on InP quantum dot color converters
- Authors
- Lee, Sun-Hyoung; Lee, Ki-Heon; Jo, Jung-Ho; Park, Byoungnam; Kwon, Yongwoo; Jang, Ho Seong; Yang, Heesun
- Issue Date
- 1-Jul-2014
- Publisher
- OPTICAL SOC AMER
- Citation
- OPTICAL MATERIALS EXPRESS, v.4, no.7, pp.1297 - 1302
- Journal Title
- OPTICAL MATERIALS EXPRESS
- Volume
- 4
- Number
- 7
- Start Page
- 1297
- End Page
- 1302
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/16654
- DOI
- 10.1364/OME.4.001297
- ISSN
- 2159-3930
- Abstract
- This work reported on synthesis of highly efficient, color-pure green-and red-emitting non-Cd InP/ZnS core/shell quantum dots (QDs) and their utilization as color converters for the fabrication of display backlighting QD-based white light-emitting diode (LED). Green and red QD emitters were first individually embedded into a transparent polymeric matrix of polyvinylpyrrolidone and the resulting two free-standing QD composite plates were then physically combined into a bilayered form. White QD-LED was fabricated by remotely loading the bilayered QD plate of a red-on-green configuration onto blue LED chip. This remote-type white device generated a spectrally well-resolved, tricolored electroluminescent spectrum, and exhibited luminous efficacies of 8.9-16.7 lm/W, depending on forward currents of 20-100 mA, and a high color gamut of 87%. (C) 2014 Optical Society of America
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- Appears in
Collections - Graduate School > Materials Science and Engineering > 1. Journal Articles
- College of Engineering > Materials Science and Engineering Major > 1. Journal Articles
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