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Kosuke Sawabe, Masaki Imakawa, Masaki Nakano, Takeshi Yamao, Shu Hotta, Yoshihiro Iwasa and Taishi Takenobu Current-Confinement Structure and Extremely High Current Density in Organic Light-Emitting Transistors Advanced Materials 24

Version of Record online: 10 SEP 2012 | DOI: 10.1002/adma.201202252

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Extremely high current densities are realized in single-crystal ambipolar light-emitting transistors using an electron-injection buffer layer and a current-confinement structure via laser etching. Moreover, a linear increase in the luminance was observed at current densities of up to 1 kA cm−2, which is an efficiency-preservation improvement of three orders of magnitude over conventional organic light-emitting diodes (OLEDs) at high current densities.

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