Improved Viewing Angle and Light Extraction Efficiency of Microcavity OLED with Corrugated Capping Layer

Byung Doo Chin, Jeong-Yeol Yoo, Sung Min Jo, Sung Min Jo

2025

Abstract

Simple and low-cost materials and process for the formation of light extraction layer of organic light emitting diodes (OLED) are important. However, in case of microcavity-driven OLED, microscale structure for improved light extraction of devices is not easily applicable due to the sever interference with efficiency and viewing angle limitation. In this work, various type of periodic and non-periodic corrugated pattern array for OLEDs were formed by soft lithographic process or spontaneous self-assembly after thermal annealing. Improvement of top emission OLED with microcavity-driven high efficiency were observed, while the angular dependence of light emitting spectra (viewing angle characteristics) was reduced at devices with larger features of corrugated non-periodic capping layer structure. Optical properties of devices were investigated in terms of the scale of periodic patterns and optical cavity effect. Methods in this work could be utilized as an effective tool for managing microcavity-driven performance of high efficiency OLEDs.

Paper Citation

in Harvard Style

Chin B., Yoo J. and Jo S. (2025). Improved Viewing Angle and Light Extraction Efficiency of Microcavity OLED with Corrugated Capping Layer. In Proceedings of the 13th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS; ISBN 978-989-758-736-8, SciTePress, pages 142-146. DOI: 10.5220/0013311700003902

in Bibtex Style

@conference{photoptics25,
author={Byung Chin and Jeong-Yeol Yoo and Sung Jo},
title={Improved Viewing Angle and Light Extraction Efficiency of Microcavity OLED with Corrugated Capping Layer},
booktitle={Proceedings of the 13th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS},
year={2025},
pages={142-146},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013311700003902},
isbn={978-989-758-736-8},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 13th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS
TI - Improved Viewing Angle and Light Extraction Efficiency of Microcavity OLED with Corrugated Capping Layer
SN - 978-989-758-736-8
AU - Chin B.
AU - Yoo J.
AU - Jo S.
PY - 2025
SP - 142
EP - 146
DO - 10.5220/0013311700003902
PB - SciTePress