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Enhancement of Efficiency Stabilization and Color Purity in Blue Organic Light-Emitting Devices Fabricated Utilizing a CBP/DPVBi Double Emitting Layer
- Authors
- Seo, Su Yul; Woo, Jun Taek; Leem, Jae-Hyeon; Lee, Sam Hyung; Jung, Moon-Sic; Choo, Dong Chul; Bang, Hyun Sung; Kim, Tae Whan; Lee, Suk Jae; Seo, Ji-Hyun; Kim, Young Kwan
- Issue Date
- Dec-2009
- Publisher
- Taylor & Francis
- Keywords
- blue color purity; color stabilization; deep blue emission; double emitting layer; luminance efficiency; organic light-emitting devices
- Citation
- Molecular Crystals and Liquid Crystals, v.514, pp 452 - 460
- Pages
- 9
- Indexed
- SCIE
SCOPUS
- Journal Title
- Molecular Crystals and Liquid Crystals
- Volume
- 514
- Start Page
- 452
- End Page
- 460
- ISSN
- 1542-1406
1543-5318
- Abstract
- The luminance efficiency as a function of the applied voltage for the blue organic light-emitting devices (OLEDs) with a 4,4'-Bis(carbazol-9-yl)biphenyl (CBP)/4,4'-Bis(2,2'-diphenyl-ethen-1-yl)biphenyl (DPVBi) double emitting layer (DEML) was more stable than that of the OLEDs with a DPVBi emitting layer (EML), a CBP EML, or a DPVBi/CBP DEML, regardless of the variation of the applied voltage. The electroluminescence spectra showed that the dominant peak in the OLEDs with a CBP/DPVBi DEML was shifted to higher energy in comparison to that with a DPVBi EML, a CBP EML, or DPVBi/CBP DEML, indicative of the enhancement of the blue color purity.
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Collections - 서울 공과대학 > 서울 융합전자공학부 > 1. Journal Articles
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