P‐207: Enhancing OLED Optical Characteristics through Simple Fabrication of High Aspect Ratio Nanostructures based on photosensitive photopolymer for External Light Extraction-Reference-Cited by-同舟云学术

P‐207: Enhancing OLED Optical Characteristics through Simple Fabrication of High Aspect Ratio Nanostructures based on photosensitive photopolymer for External Light Extraction

Published:2024-06 Issue:1 Volume:55 Page:2170-2172
ISSN:0097-966X
Container-title:SID Symposium Digest of Technical Papers
language:en
Short-container-title:Symp Digest of Tech Papers

Author:

Choi Geun Su¹²,Bae Eun Jeong¹²,Ju Byeong-Kwon¹,Park Young Wook²

Affiliation:

1. Display and Nanosensor Laboratory, Department of Electrical Engineering Korea University 145, Anam-ro, Seongbuk-gu Seoul 02841 Republic of Korea

2. Nano and Organic-Electronics Laboratory, Department of Display and Semiconductor Engineering Sun Moon University Asan Republic of Korea 31460

Abstract

Investigated nano‐pillar‐based light extraction methods for OLEDs. Explored photosensitive photopolymer (SU‐8) based random nanostructure's impact on light extraction efficiency. Achieved 85% visible spectrum transmittance, highest efficiency with minimal unetched structure thickness. Compared to OLEDs lacking nano‐pillar structure, saw up to 38% improved quantum efficiency and 40% enhanced power efficiency. Insights aid in optimizing these structures for OLED advancement.

Publisher

Wiley

Reference13 articles.

1. Enhancement of Light Extraction Efficiency and Suppression of Roll‐Off Characteristics of Thermally Activated Delayed Fluorescence Organic Light‐Emitting Diodes by Inserting Nanoscale Pixel‐Defining Layer

2. Enhanced light extraction efficiency from organic light emitting diodes by insertion of a two-dimensional photonic crystal structure

3. Simulation for light extraction efficiency of OLEDs with spheroidal microlenses in hexagonal array

4. Molding hemispherical microlens arrays on flexible substrates for highly efficient inverted quantum dot light emitting diodes

5. A Single‐Step Hot Embossing Process for Integration of Microlens Arrays in Biodegradable Substrates for Improved Light Extraction of Light‐Emitting Devices