ORGANIC ELECTROLUMINESCENT ELEMENT

ORGANIC ELECTROLUMINESCENT ELEMENT

PROBLEM TO BE SOLVED: To provide an organic electroluminescent element which can stabilize electron injection characteristic and improve a driving service life of a device even if its reactivity is high as a disadvantage and an alkali metal, an alkaline earth metal and its compound with superior ele...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KOMATSU TAKAHIRO, SAKAGAMI MEGUMI
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide an organic electroluminescent element which can stabilize electron injection characteristic and improve a driving service life of a device even if its reactivity is high as a disadvantage and an alkali metal, an alkaline earth metal and its compound with superior electron injection characteristic are used as an electron injection material. SOLUTION: A stable transition metal oxide is doped with at least one compound selected from an alkaline earth metal or an alkali metal as an electron injection material and/or their oxide and a halide. Thus, a stabilized electron injection layer can be made to have superior electron injection characteristic. COPYRIGHT: (C)2009,JPO&INPIT