Inkjet printing of photopolymerizable small molecules for OLED applications

Simon Olivier 1 Lionel Derue 2 Bernard Geffroy 2, 3 Ishow Elena 4 Tony Maindron 1
1 CEA-LETI - Laboratoire d'Electronique et des Technologies de l'Information
2 LPICM - Laboratoire de physique des interfaces et des couches minces [Palaiseau]
3 LICSEN - Laboratoire Innovation en Chimie des Surfaces et NanoSciences
NIMBE UMR 3685 - Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M)
4 CEISAM - Chimie Et Interdisciplinarité : Synthèse, Analyse, Modélisation
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.
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Conference papers
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https://hal-cea.archives-ouvertes.fr/cea-01635518
Contributor : Serge Palacin <>
Submitted on : Wednesday, November 15, 2017 - 11:52:04 AM
Last modification on : Wednesday, April 3, 2019 - 2:08:25 AM

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CEA | CNRS | X | LPICM | DSM-IRAMIS | UNIV-NANTES | PUBNIMBE | IRAMIS-NIMBE | X-PICM | DRT | PARISTECH | INC-CNRS | UNIV-PARIS-SACLAY | CEA-DRF | LETI | CEA-UPSAY | X-DEP-PHYS | CEA-GRE

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Simon Olivier, Lionel Derue, Bernard Geffroy, Ishow Elena, Tony Maindron. Inkjet printing of photopolymerizable small molecules for OLED applications. Organic Light Emitting Materials and Devices XIX at SPIE Organic Photonics + Electronics 2015, Aug 2015, San Diego, United States. pp.95661N, ⟨10.1117/12.2186995⟩. ⟨cea-01635518⟩

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