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Proceedings Paper

Inkjet printing of photopolymerizable small molecules for OLED applications
Author(s): Simon Olivier; Lionel Derue; Bernard Geffroy; Eléna Ishow; Tony Maindron
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Paper Abstract

The elaboration of organic light-emitting diodes (OLEDs) via a solution deposition process turns out to be a cheaper alternative to the vacuum evaporation technique. However the most popular spin-coating wet deposition process mainly used in the semiconductor industry is not applicable for large mother glass substrates used in display applications. The inkjet technology addresses this drawback and appears to be a good solution to produce on a large scale wet deposited OLEDs1. This process has been commonly used for polymer deposition and only a few examples2–4 have demonstrated the possibility of depositing small molecules in functional devices. Deposition of small molecules from inkjet printing is supposed to be easier than polymers because monomers do not show polydispersity and consequently the viscosity of the solution containing the monomers, the ink, is easily controllable in production. This work aims at fabricating OLEDs composed of inkjet-printed hole-transporting molecules and a new class of fluorescent molecules that have been further UV-photopolymerized right after deposition.

Paper Details

Date Published: 22 September 2015
PDF: 6 pages
Proc. SPIE 9566, Organic Light Emitting Materials and Devices XIX, 95661N (22 September 2015); doi: 10.1117/12.2186995
Show Author Affiliations
Simon Olivier, Univ. Grenoble Alpes, CEA-LETI (France)
CEISAM, CNRS, Univ. of Nantes (France)
Lionel Derue, LPICM, CNRS, Ecole Polytechnique (France)
Univ. Paris-Saclay, CEA Saclay (France)
Bernard Geffroy, LPICM, CNRS, Ecole Polytechnique (France)
Univ. Paris-Saclay, CEA Saclay (France)
Eléna Ishow, CEISAM, CNRS, Univ. of Nantes (France)
Tony Maindron, Univ. Grenoble Alpes, CEA-LETI (France)

Published in SPIE Proceedings Vol. 9566:
Organic Light Emitting Materials and Devices XIX
Franky So; Chihaya Adachi; Jang-Joo Kim, Editor(s)

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