BROWSE
Detail
Journal Article
Stabilizing Color Shift of Tandem White Organic Light-emitting Diodes
Cited 22 time in 
Share 
Share
- Authors
- Hyunsu Cho, Jinouk Song, Byoung-Hwa Kwon, Sukyung Choi, Hyunkoo Lee, Chul Woong Joo, Seong-Deok Ahn, Seung-Youl Kang, Seunghyup Yoo, Jaehyun Moon
- Issue Date
- 2019-01
- Citation
- Journal of Industrial and Engineering Chemistry, v.69, pp.414-421
- ISSN
- 1226-086X
- Publisher
- 한국공업화학회
- Language
- English
- Type
- Journal Article
- 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.
- KSP Keywords
- Organic light-emitting diodes(OLEDS), Scattering film, White organic light-emitting diodes, angular dependence, emissive layer(EL), light-emitting diode(LED), metal electrode, optical resonance, tandem configuration