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Stabilizing color shift of tandem white organic light-emitting diodes
- Authors
- Cho, Hyunsu; Song, Jinouk; Kwon, Byoung-Hwa; Choi, Sukyung; Lee, Hyunkoo; Joo, Chul Woong; Ahn, Seong-Deok; Kang, Seung-Youl; Yoo, Seunghyup; Moon, Jaehyun
- Issue Date
- Jan-2019
- Publisher
- ELSEVIER SCIENCE INC
- Citation
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.69, pp 414 - 421
- Pages
- 8
- Journal Title
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
- Volume
- 69
- Start Page
- 414
- End Page
- 421
- ISSN
- 1226-086X
1876-794X
- Abstract
- One drawback of white organic light-emitting diodes (WOLEDs) is the white angular dependence (WAD). Aimed to suppress the WAD of tandem WOLED to a negligible degree, we investigated the effect of optical resonance and probed various scattering structures. In a two-tandem configuration, the emissive layer physically remote from the reflective metal electrode is causing detrimental WAD. By combining an external nanoparticle based volumetric scattering film and an internal random nanostructure, it was possible to suppress the WAD of tandem WOLED to a value as low as 0.005, which is indistinguishable to human eyes. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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Related Researcher
- Lee, Hyunkoo
- 첨단소재·전자융합공학부 (지능형전자시스템전공)