Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Flexible external light extraction in organic light-emitting diodes by porous PDMS film fabricated by high-pressure steam process

Authors
Bae, Eun JeongKim, Jong WooJu, Byeong-KwonBaek, Dong-HyunPark, Young Wook
Issue Date
9월-2022
Publisher
ELSEVIER
Keywords
Organic light emitting-diodes (OLEDs); Polydimethylsiloxane (PDMS); Flexible porous film; Light extraction
Citation
ORGANIC ELECTRONICS, v.108
Indexed
SCIE
SCOPUS
Journal Title
ORGANIC ELECTRONICS
Volume
108
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/145809
DOI
10.1016/j.orgel.2022.106575
ISSN
1566-1199
Abstract
In this study, a flexible porous film was proposed as a light-scattering layer for enhancing the external light extraction in organic light-emitting diodes (OLEDs) by a high-pressure steam process. The pore penetration depth and surface morphology of the flexible porous film were affected by the viscosity of the polydimethylsiloxane (PDMS) solution. Moreover, the porous structures influenced the total transmittance, external quantum efficiency (EQE), and view angle. Consequently, although the total transmittance decreased due to the porous structure, the EQE improved by 30% compared to that of OLEDs without the porous film. This improvement can be attributed to the scattering effect, resulting from the difference in refractive indices between the embedded air cavities and porous layer, which depends on the penetration depth and surface morphology. Furthermore, a flexible porous film based on PDMS presents an effective and a simple approach for achieving high efficiency in flexible OLEDs.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Engineering > School of Electrical Engineering > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Ju, Byeong kwon photo

Ju, Byeong kwon
공과대학 (전기전자공학부)
Read more

Altmetrics

Total Views & Downloads

BROWSE