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

Kukjoo Kim, Gyeomuk Kim, Bo Ram Lee, Sangyoon Ji, So Yun Kim, Byeong Wan An, Myoung Hoon Song, Jang Ung Park

Research output: Contribution to journalArticle

58 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)13410-13415
Number of pages6
JournalNanoscale
Volume7
Issue number32
DOIs
Publication statusPublished - 2015 Jan 1

Fingerprint

Electrohydrodynamics
Organic light emitting diodes (OLED)
Printing
Pixels
Molecules
Display devices
Vacuum evaporation
Costs
Masks
Polymers
Metals
Fabrication

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Kim, Kukjoo ; Kim, Gyeomuk ; Lee, Bo Ram ; Ji, Sangyoon ; Kim, So Yun ; An, Byeong Wan ; Song, Myoung Hoon ; Park, Jang Ung. / High-resolution electrohydrodynamic jet printing of small-molecule organic light-emitting diodes. In: Nanoscale. 2015 ; Vol. 7, No. 32. pp. 13410-13415.
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Kim, K, Kim, G, Lee, BR, Ji, S, Kim, SY, An, BW, Song, MH & Park, JU 2015, 'High-resolution electrohydrodynamic jet printing of small-molecule organic light-emitting diodes', Nanoscale, vol. 7, no. 32, pp. 13410-13415. https://doi.org/10.1039/c5nr03034j

High-resolution electrohydrodynamic jet printing of small-molecule organic light-emitting diodes. / Kim, Kukjoo; Kim, Gyeomuk; Lee, Bo Ram; Ji, Sangyoon; Kim, So Yun; An, Byeong Wan; Song, Myoung Hoon; Park, Jang Ung.

In: Nanoscale, Vol. 7, No. 32, 01.01.2015, p. 13410-13415.

Research output: Contribution to journalArticle

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