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Proceedings Paper

Spatial emission patterns in organic thin-film EL
Author(s): Tetsuo Tsutsui; Kounosuke Yamamato
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Paper 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.

Paper Details

Date Published: 16 December 1998
PDF: 9 pages
Proc. SPIE 3476, Organic Light-Emitting Materials and Devices II, (16 December 1998); doi: 10.1117/12.332620
Show Author Affiliations
Tetsuo Tsutsui, Kyushu Univ. (Japan)
Kounosuke Yamamato, Kyushu Univ. (Japan)


Published in SPIE Proceedings Vol. 3476:
Organic Light-Emitting Materials and Devices II
Zakya H. Kafafi, Editor(s)

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