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Device structures of the red light-emitting OLEDs with (a) a normal cathode and (b) a multi-cathode.
Source publication
In this study, the effect of a dual microcavity on the luminescent characteristics and light extraction efficiency of organic red light-emitting devices with a multi-cathode structure was investigated. It was clarified that surface plasmon loss on a metal cathode was reduced to about one-fifth and can be efficiently extracted from the outside with...
Contexts in source publication
Context 1
... concentration of the red dopant was fixed at 5 wt.%. Figure 1 (b) shows the proposed device structure with a dual microcavity, in which the cathode has multiple layers consisting of a semi-transparent MgAg thin film metal, an optical buffer (OB) layer, and a highly reflective silver film. The proposed device structure is called a multi-cathode (MLC) structure. ...
Context 2
... experimental and simulated results were almost the same. Figure 10 (a) and (b) show the viewing angle dependence of the electroluminescent spectra in the red lightemitting devices with and without a dual-microcavity, respectively. The normal device exhibited a red emission with a peak wavelength of 634 nm and a broad shoulder band on the long wavelength side. ...
