摘要:
The present invention aims to provide a photovoltaic element which can maintain high initial characteristics over long term usage even under severe environments, and can be mass-produced with high yield.A photovoltaic element in which a light reflecting layer, a light reflection multiplying layer, an n-type layer, an i-type layer, and a p-type layer composed of a non-single crystal semiconductor material comprising at least silicon, and a transparent electrode are successively formed on a conductive substrate, characterized in that said light reflecting layer comprises silver or copper atoms as the main constituent and further contains at least one of oxygen, nitrogen, and carbon.Also, in another embodiment, this photovoltaic element is characterized in that said light reflecting layer comprises silver as the main constituent, and further contains lead, lead and gold, or lead, gold, and a first transition group metal in an amount of 2 to 100 ppm.
摘要:
An object of the present invention is to provide a photovoltaic device and a method of producing the photovoltaic device which can prevent recombination of photo-excited carriers and which permits increases in the open circuit voltage and the carrier range. The photovoltaic device of the present invention has a laminate structure composed of at least a p-type layer of a silicon non-single crystal semiconductor, a photoactive layer having a plurality of i-type layers, and an n-type layer. The photoactive layer has a laminate structure composed of a first i-type layer deposited on the side of the n-type layer by a microwave plasma CVD process, and a second i-type layer deposited on the side of said the p-type layer by an RF plasma CVD process. The first i-type layer deposited by the microwave plasma CVD process contains at least silicon and carbon atoms, and has a minimum band gap between the center thereof and the p-type layer, and the second i-type layer deposited by the RF plasma CVD process contains at least silicon atoms and has a thickness of 30 nm or less.
摘要:
A photovoltaic device has a semiconductor layer; electrodes and a surface protection layer adjacent to the light incident side. Granules of a material different from those of the surface protection layer are disposed in the surface protection layer. The granules in the surface protection layer have an average grain size of 0.001-20 microns, a surface density S from 0.2 to 0.9 and/or a density per volume from 0.001 to 0.5.To produce a surface protecting layer for a photovoltaic device in which the surface protecting layer has granules at a light incident side the surface of a photovoltaic device is painted with a liquid resin containing the granules.
摘要:
A photovoltaic device having a semiconductor layer; front and back electrodes; and a surface protection layer adjacent to the light incident side, wherein granules of a material different from that of the surface protection layer are disposed in the surface protection layer.
摘要:
The present invention provides photoelectric conversion elements, wherein the long wavelength sensitivity, the fill factor, and the photoelectric conversion efficiency are improved. In order to provide photoelectric conversion elements wherein light deterioration is reduced, the field durability enhanced, and the temperature characteristic improved, a p-layer composed of amorphous silicon type semiconductor containing hydrogen, an i-layer composed of amorphous silicon-germanium type semiconductor containing hydrogen and further including microcrystalline germanium, and an n-layer composed of amorphous silicon type semiconductor containing hydrogen are laminated on a substrate, the i-layer being formed at a substrate temperature from 400.degree. to 600.degree. C. by microwave plasma CVD, the particle diameter of said microcrystalline germanium ranging from 50 to 500 angstroms. Also, the content of microcrystalline germanium varies in the layer thickness direction.
摘要:
A non-single crystalline semiconductor containing at least one kind of atoms selected from the group consisting of silicon atoms (Si) and germanium atoms (Ge) as a matrix, and at least one kind of atoms selected from the group consisting of hydrogen atoms (H) and halogen atoms (X), wherein said non-single crystalline semiconductor has an average radius of 3.5 .ANG. or less and a density of 1.times.10.sup.19 (cm.sup.-3) or less as for microvoids contained therein. The non-single crystalline semiconductor excels in semiconductor characteristics and adhesion with other materials and are effectively usable as a constituent element of various semiconductor devices.
摘要:
A photovoltaic element has a substrate with a conductive surface, a zinc oxide layer containing fluorine and a non-single-crystal semiconductor layer, where the fluorine content of the zinc oxide layer (i) varies across the thickness of the layer, (ii) is at a minimum at the interface with the substrate and (iii) increases toward the semiconductor layer.
摘要:
An apparatus for repairing a defective semiconductor device having an electrically short-circuited portion, wherein the semiconductor device includes a semiconductor thin film and a conductive thin film disposed in the named order on a conductive surface of a substrate and in which the conductive thin film and the conductive surface of the substrate are electrically short-circuited at a pinhole occurring in the semiconductor thin film to form an electrically short-circuited portion so that the semiconductor device is defective. The apparatus includes a substrate holding unit for holding the substrate of the defective semiconductor device and an electrode arranged above the substrate holding unit so that, when the defective semiconductor is positioned on the substrate holding unit, there is a predetermined distance between the electrode and the conductive thin film of the defective semiconductor device, the electrode being capable of moving in relation to the substrate of the defective semiconductor device. The apparatus further includes a voltage applying unit for applying a desired voltage to the electrode, wherein discharge is caused between the electrode and the conductive thin film of the defective semiconductor device by applying a desired voltage to the electrode through the voltage applying means to thereby modify a region of the conductive thin film of the defective semiconductor device in electrical contact with the conductive surface of the substrate of the defective semiconductor device.
摘要:
A solar cell comprising a conductive substrate and semiconductor layers laminated on the conductive substrate, said laminate comprising a p-type layer composed of a non-single crystal Si material, an i-type layer serving as an active layer and an n-type layer, wherein a diamond layer having an uneven surface and containing a valence electron controlling agent is interposed between the conductive substrate and the semiconductor layers.
摘要:
A photovoltaic element is formed by providing a substrate under vacuum; introducing a sputter gas and applying RF power to generate a plasma and provide a photovoltaic element having a substrate, a zinc oxide layer containing fluorine on the substrate, wherein a fluorine-containing zinc oxide layer is employed as a target.