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Orientation of OLED Emitter Molecules Revealed by XRD

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Abstract

Thin films of the phosphorescent emitters Ir(ppy)3 and Ir(ppy)2(acac) are investigated by GIXRD and GIWAXS. Both molecules form crystalline grains and exhibit a preferred orientation that is pertained even when doped into a host.

© 2016 Optical Society of America

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