| 摘要 |
An organic EL element comprising; an anode, a cathode, and an organic layer sandwiched therebetween containing at least an emitting layer, wherein a ratio, [In3d<SUB>5/2</SUB>]<SUB>h</SUB>/[In3d<SUB>5/2</SUB>]<SUB>n</SUB>, is from 0.9 to 1.2 wherein [In3d<SUB>5/2</SUB>]<SUB>h </SUB>is the half band width of a spectral peak derived from a 3d<SUB>5/2 </SUB>orbit of an In atom in the surface of the anode, and [In3d<SUB>5/2</SUB>]<SUB>n </SUB>is the half band width of a spectral peak derived from a 3d<SUB>5/2 </SUB>orbit of an In atom in the interior of the anode, the spectral peaks being measured by X-ray photoelectron spectroscopy (XPS): and the method for the production thereof.
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