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

Citation data:

Nanoscale, ISSN: 2040-3372, Vol: 7, Issue: 32, Page: 13410-5

Publication Year:
2015
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Repository URL:
http://scholarworks.unist.ac.kr/handle/201301/13042
PMID:
26214140
DOI:
10.1039/c5nr03034j
Author(s):
Kim, Kukjoo, Kim, Gyeomuk, Lee, Bo Ram, Ji, Sangyoon, Kim, So-Yun, An, Byeong Wan, Song, Myoung Hoon, Park, Jang-Ung
Publisher(s):
Royal Society of Chemistry (RSC), The Royal Society of Chemistry, ROYAL SOC CHEMISTRY
Tags:
Materials Science, THIN-FILM TRANSISTORS, CONJUGATED POLYMERS, DISPLAYS, DEPOSITION, NANOSCALE, PATTERNS, DEVICES, DROPS, LAYER
article description
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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