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Park, Jang-Ung
Flexible Nano-electronics & Biotechnology Lab
Research Interests
  • Wireless wearable electronics, flexible electronics, printed electronics, nano-bio interfaces

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High-resolution electrohydrodynamic jet printing of small-molecule organic light-emitting diodes

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Title
High-resolution electrohydrodynamic jet printing of small-molecule organic light-emitting diodes
Author
Song, Myoung HoonPark, Jang-UngKim, KukjooKim, GyeomukLee, Bo RamJi, SangyoonKim, So-YunAn, Byeong Wan
Keywords
THIN-FILM TRANSISTORS; CONJUGATED POLYMERS; DISPLAYS; DEPOSITION; NANOSCALE; PATTERNS; DEVICES; DROPS; LAYER
Issue Date
201508
Publisher
ROYAL SOC CHEMISTRY
Citation
NANOSCALE, v.7, no.32, pp.13410 - 13415
Abstract
The development of alternative organic light-emitting diode (OLED) fabrication technologies for high-definition and low-cost displays is an important research topic as conventional fine metal mask-assisted vacuum evaporation has reached its limit to reduce pixel sizes and manufacturing costs. Here, we report an electrohydrodynamic jet (e-jet) printing method to fabricate small-molecule OLED pixels with high resolution (pixel width of 5 μm), which significantly exceeds the resolutions of conventional inkjet or commercial OLED display pixels. In addition, we print small-molecule emitting materials which provide a significant advantage in terms of device efficiency and lifetime compared to those with polymers.
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DOI
http://dx.doi.org/10.1039/C5NR03034J
ISSN
2040-3364
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