Control of magnetic-field effect on electroluminescence in Alq3-based organic light emitting diodes

The magnetic-field effect on electroluminescence (EL) has been investigated for the tris-(8-hydroxyquinolino) aluminum (Alq3)-based organic light emitting diode. The EL intensity sharply increases up to 8% with increasing magnetic field to 500Oe at room temperature. The magnetic field effect on EL d...

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Bibliographic Details
Published in:Applied physics letters 2006-03, Vol.88 (12)
Main Authors: Odaka, Hidefumi, Okimoto, Yoichi, Yamada, Toshikazu, Okamoto, Hiroshi, Kawasaki, Masashi, Tokura, Yoshinori
Format: Article
Language:English
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Summary:The magnetic-field effect on electroluminescence (EL) has been investigated for the tris-(8-hydroxyquinolino) aluminum (Alq3)-based organic light emitting diode. The EL intensity sharply increases up to 8% with increasing magnetic field to 500Oe at room temperature. The magnetic field effect on EL depends on the interface structure between a hole transporting and a light emitting layers, indicating the importance of the spin-state dynamics of the electron-hole pairs at the interface.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2185256