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Fabrication of Organic Light-Emitting Devices by Low-Pressure Cold Welding

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  • This work was partially supported by the National Science Foundation and Universal Display Corporation.

Abstract

Low-pressure cold welding has been used to fabricate 200 μm diameter organic light-emitting devices (OLEDs) (see Figure). The contacts are made by transferring a metal film from a patterned, soft elastomeric stamp onto unpatterned organic and metal layers on a substrate. The process does not adversely affect the OLED performance when compared with those fabricated by shadow mask patterning.

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