Orientation of OLED emitter molecules revealed by XRD
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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.
Murawski , C , Elschner , C , Lenk , S , Reineke , S & Gather , M C 2016 , Orientation of OLED emitter molecules revealed by XRD . in Proceedings, Light, Energy and the Environment . , SSW2D.7 , Solid-State Lighting , Optical Society of American (OSA) , OSA Light, Energy and the Environment Congress , Leipzig , Germany , 14-17 November . DOI: 10.1364/SSL.2016.SSW2D.7conference
Proceedings, Light, Energy and the Environment
© 2016, the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at www.osapublishing.org / https://doi.org/10.1364/SSL.2016.SSW2D.7
We thank Dr. Lutz Wilde at Fraunhofer IPMS, Center Nanoelectronic Technologies, Dresden for carrying out the GIXRD measurements. CM acknowledges funding by the Graduate Academy of the TU Dresden and by the European Commission through a Marie Skłodowska Curie individual fellowship (703387).
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