Material for organoelectroluminescence device and use thereof
AssigneeToyo Ink Manufacturing Co., Ltd.
InventorsMichiko Tamano, Toshio Enokida, Toshikazu Onikubo, Satoshi Okutsu
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Abstract
A hole-injecting material for an organic EL device, having excellent hole-injecting capability and durability and having the formula [I], [II] or [III] specified in claim 1, and an organic electroluminescence device obtained by forming either a light-emitting layer or a plurality of organic compound thin layers including the light-emitting layer between a pair of electrodes composed of a cathode and an anode, wherein at least one layer contains the above material.
Claims4
An organic electroluminescence device obtained by forming either a light-emitting layer or a plurality of organic compound thin layers including the light-emitting layer between a pair of electrodes composed of a cathode and an anode, wherein at least one layer contains a compound having the formula (I), (II) or (III),
- wherein each of R1 to R6 is independently a non-substituted aryl group, a substituted aryl group, a non-substituted alicyclic group, a substituted alicyclic group, a non-substituted heterocyclic group or a substituted heterocyclic group, and each of X1 to X6 is independently an oxygen atom or a sulfur atom, or a nitrogen atom to which a hydrogen atom, methyl group, ethyl group or an aryl group is bonded,
- wherein each of R1, R2 and R4 to R11 is independently a non-substituted aryl group, substituted aryl group, non-substituted alicyclic group, a substituted alicyclic group, a non-substituted heterocyclic group or a substituted heterocyclic group, each of X1 to X12 is independently an oxygen atom or a sulfur atom or a nitrogen atom to which a hydrogen atom, methyl group, ethyl group or an aryl group is bonded, and A1 is a chemically rational organic residue which is composed of C, H and O or is composed of C, H, O and S, and has a molecular weight of 500 or less,
- wherein each of R1, R2, R4 to R11 and R13 to R17 is independently a non-substituted aryl group, substituted aryl group, non-substituted alicyclic group, a substituted alicyclic, a non-substituted heterocyclic group or a substituted heterocyclic group, each of X1 to X18 is independently an oxygen atom or a sulfur atom or a nitrogen atom to which a hydrogen atom, methyl group, ethyl group or an aryl group is bonded, and A2 is a chemically rational organic residue which is composed of C, H and O or is composed of C, H, O and S, and has a molecular weight of 500 or less,
- the thickness of each layer being in the range of from 10 nm to 0.2 μm.
Dependencies are inferred from the claim text.