Highly soluble fluorous alkyl ether-tagged imaging materials for the photo-patterning of organic light-emitting devices

Jongchan Son, Hyun Taek Oh, O. Jun Kwon, Jong Min Lim, Heeyoung Jung, Byung Jun Jung, Do Hoon Hwang, Changhee Lee, Jin Kyun Lee, Jong Geun Yoon, Soo Young Yoon

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

A photolithographic patterning scheme for organic light-emitting diode (OLED) pixels was proposed, requiring highly soluble imaging materials in fluorous solvents. The attachment of perfluoroether chains onto a previously reported acid-cleavable resorcinarene and the addition of a semi-perfluoroalkoxy moiety to a naphthalimide backbone proved to be effective toward achieving imaging materials with enhanced solubility in fluorous solvents. These materials exhibited good film-forming and photo-imaging properties when layered onto a hole-transporting 4,4′,4′′-tris(N-carbazolyl)triphenylamine (TCTA) layer without seriously damaging it. With the proposed scheme and benign imaging materials, it was possible to construct OLEDs with patterned pixels as small as 50 μm.

Original languageEnglish
Pages (from-to)926-930
Number of pages5
JournalJournal of Materials Chemistry C
Volume5
Issue number4
DOIs
StatePublished - 2017

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