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

65 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 Aug 28

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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    Kim, K., Kim, G., Lee, B. R., Ji, S., Kim, S. Y., An, B. W., Song, M. H., & Park, J. U. (2015). High-resolution electrohydrodynamic jet printing of small-molecule organic light-emitting diodes. Nanoscale, 7(32), 13410-13415. https://doi.org/10.1039/c5nr03034j