Oxide material, electrophotographic photoreceptor, process cartridge, and image forming device
AssigneeFuji Xerox Co., Ltd.
InventorsShigeru Yagi, Takeshi Iwanaga
Life of this patent
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Abstract
An oxide material including gallium, zinc and oxygen, a ratio of the number of atoms of zinc to the number of atoms of gallium (number of atoms of zinc/number of atoms of gallium) being from about 0.01 to about 0.6 and a ratio of the number of atoms of oxygen to the sum of the number of atoms of gallium and the number of atoms of zinc (number of atoms of oxygen/(number of atoms of gallium+number of atoms of zinc)) being from about 1.0 to about 1.6, is disclosed. An electrophotographic photoreceptor including a layer which includes the oxide material is also disclosed. An electrophotographic photoreceptor including a substrate; and a photosensitive layer including gallium, oxygen and zinc is also disclosed.
Claims16
An electrophotographic photoreceptor, comprising:
- a substrate;
- and
- a photosensitive layer including an oxide material comprising gallium, oxygen and zinc, a ratio of the number of atoms of zinc to the number of atoms of gallium (number of atoms of zinc/number of atoms of gallium) being from 0.01 to 0.4 and a ratio of the number of atoms of oxygen to the number of atoms of gallium and the number of atoms of zinc (number of atoms of oxygen/(number of atoms of gallium +number of atoms of zinc)) being from 1.0 to 1.6.
An electrophotographic photoreceptor, comprising:
- a substrate;
- and
- a photosensitive layer including a charge generating layer and a charge transport layer, the charge transport layer including gallium, oxygen and zinc,
- wherein the content of gallium in the photosensitive layer is larger than the content of zinc in the photosensitive layer in terms of a ratio of the number of atoms, and
- further comprising a charge injection layer between the charge generating layer and the charge transport layer, the charge injection layer including gallium, oxygen and zinc, and a ratio of the content of zinc to the content of gallium in the charge injection layer, in terms of a ratio of the number of atoms, being higher than the ratio of the content of zinc to the content of gallium in the charge transport layer in terms of a ratio of the number of atoms.
An electrophotographic photoreceptor, comprising:
- a substrate;
- and
- a photosensitive layer including a charge generating layer and a charge transport layer, the charge transport layer including gallium, oxygen and zinc,
- wherein the content of gallium in the photosensitive layer is larger than the content of zinc in the photosensitive layer in terms of a ratio of the number of atoms, and.
- further comprising a charge injection layer between the charge generating layer and the charge transport layer, the charge injection layer including gallium, oxygen and zinc, and a ratio of the content of oxygen to the sum of the content gallium and the content of zinc in the charge injection layer, in terms of a ratio of the number of atoms, being lower than the ratio of the content oxygen to the sum of the content gallium and the content of zinc in the charge transport layer in terms of a ratio of the number of atoms.
Dependencies are inferred from the claim text.