Controlling Drying Conditions in Vacuum for Uniform Film Formation in Inkjet-Printed OLEDs
Youngwook Noh,
Jun Young Hwang,
Sang Youn Lee
et al.
Abstract:The drying process of inkjet-printed organic lightemitting diodes (OLEDs) is influenced by both ink properties and external environmental factors, which ultimately affect the film profile. First, we conducted a detailed investigation of the drying time based on changes in the boiling point (BP) of mixed solvents and analyzed the correlation with the film profile. Under atmospheric drying conditions in a nitrogen (N 2 ) atmosphere, the increased drying time under capillary-driven flow leads to greater particle … Show more
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