Anode-Patterned Monorail-Structure Fiber-Based Organic Light-Emitting Diodes with Long Lifetime and High Performance for Truly Wearable Displays
- Authors
- Kong, Seong Uk; Jeon, Yongmin; Lee, Ho Seung; Hwang, Yong Ha; Chang, Jaehyeock; Kim, Hagseon; Kim, Chan Young; Choi, Kyung Cheol
- Issue Date
- Jul-2023
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- electroluminescence performance; fiber-based light-emitting devices; monorail-structure; organic light-emitting diodes; operating lifetime; reliability; thermal evaporation method
- Citation
- ADVANCED OPTICAL MATERIALS, v.11, no.13
- Journal Title
- ADVANCED OPTICAL MATERIALS
- Volume
- 11
- Number
- 13
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/88638
- DOI
- 10.1002/adom.202203130
- ISSN
- 2195-1071
- Abstract
- This paper presents a novel monorail-structure fiber-based organic light-emitting diode (MFOLED) with the anode patterned like a monorail to enhance operating reliability. The MFOLED improves the uniformity of layer thickness within the light-emitting region on cylinder fiber despite using only a thermal evaporation method. The device exhibits outstanding operating lifetime (LT50, 720 h), luminance (59335 cd m(-2)), and current efficiency (70.89 cd A(-1)), the highest performances published to date. Additionally, red, green, and blue MFOLEDs are fabricated using the same method and driven by a microcontroller unit to confirm the feasibility of implementing fiber-based subpixels. Based on these results, this work is expected to establish a new benchmark for fiber-based OLEDs and contribute to the realization of truly wearable displays.
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