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16 December 1998 Spatial emission patterns in organic thin-film EL
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Abstract
In surface emissive type devices, spatial distribution of emissive patterns is quite important from two viewpoints: first, emissive colors are highly dependent on the location of emissive sites in thin film EL devices and careful design structures is needed for tuning emissive colors. Second, for the evaluations of absolute EL efficiency, the spatial distribution of emissive light are indispensable, although Lambert rule is usually accepted without enough experimental evidence. In this report, we evaluated both spatial distribution of emissive patterns and emission spectra at each emissive direction in the standard type TPD/Alq devices and related two-layer type devices with systematically varied layer thicknesses.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tetsuo Tsutsui and Kounosuke Yamamato "Spatial emission patterns in organic thin-film EL", Proc. SPIE 3476, Organic Light-Emitting Materials and Devices II, (16 December 1998); https://doi.org/10.1117/12.332620
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