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:
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 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:
A photovoltaic device includes at least a first electrode, a first-conductivity-type layer composed of non-single-crystalline silicon, a second-conductivity-type layer composed of polycrystalline silicon, a third-conductivity-type layer composed of non-single-crystalline silicon, and a second electrode, wherein the contact surface of the first electrode with respect to the first-conductivity-type layer has a shape interspersed with a plurality of projections, and the lower limit and the upper limit of the density of the projections interspersed on the surface of the first electrode satisfy the following equations, provided that the thickness of the second-conductivity-type layer is t μm: Lower limit=0.312 exp(−0.60t) pieces/μm2 Upper limit=0.387 exp(−0.39t) pieces/μm2.
摘要:
A photovoltaic element having a specific transparent and electrically conductive layer on a back reflecting layer, said transparent and electrically conductive layer comprising a zinc oxide material and having a light incident side surface region with a cross section having a plurality of arcs arranged while in contacted with each other, said arcs having a radius of curvature in the range of 300 .ANG. to 6 .mu.m and an angle of elevation from the center of the curvature in the range of 30 to 155.degree., and said cross section containing regions comprising said plurality of arcs at a proportion of 80% or more, compared to the entire region of the cross section.
摘要:
A microwave plasma CVD method for continuously forming a large area and length functional deposited film, the method comprises: continuously moving a substrate web in the longitudinal direction by paying out it by a pay-out mechanism and taking it up by a take-up mechanism; establishing a substantially enclosed film-forming chamber by curving and projecting the moving substrate web to form a columnar portion to be the circumferential wall of the film-forming chamber as the substrate is moving from the pay-out mechanism toward the take-up mechanism; introducing a film-forming raw material gas through a gas feeder into the film-forming chamber; and simultaneously, radiating a microwave energy in the film-forming chamber by using a microwave applicator, which is so designed that it can radiate a microwave energy in the direction parallel to the microwave propagating direction, to generate plasma in the film-forming chamber, thereby continuously forming a deposited film on the inner wall face of the continuously moving circumferential wall exposed to the plasma.
摘要:
To provide a stacked photovoltaic device including: at least one pair of a first photovoltaic device and a second photovoltaic device stacked in order from a light incident side; and a selective reflection layer formed between the at least one pair of the first photovoltaic device and the second photovoltaic device and adapted to electrically connect therebetween, in which the selective reflection layer has a sheet resistance of 100 kΩ/□ or more and 100 MΩ/□ or less.
摘要:
A photovoltaic element comprising a p-type semiconductor layer and a transparent conductive layer comprised of indium tin oxide bonded to each other at a surface is provided. The sum of tin oxide content and tin content of the transparent conductive layer varies in the layer thickness direction and is lowest at the bonding surface of the p-type semiconductor layer and the transparent conductive layer. Thus provided is a photovoltaic element which has a high photoelectric conversion efficiency with decreased reduction even when exposed to an intense light for a long period.
摘要:
A method for continuously forming a large area functional deposited film by a microwave plasma CVD process, said method comprises: continuously moving a substrate web in the longitudinal direction; establishing a substantially enclosed film-forming chamber having a film-forming space by curving and projecting said moving substrate web to form a columnar portion to be the circumferential wall of said film forming chamber; introducing a film-forming raw material gas through a gas feed means into said film-forming space; at the same time, radiating or propagating microwave energy into said film-forming space by using a microwave applicator means capable of radiating or propagating said microwave energy with a directivity in one direction perpendicular to the direction of microwave propagation, to thereby generate plasma in said film-forming space, whereby continuously forming a functional deposited film on the inner face of said continuoulsy moving circumferential wall which is exposed to said plasma.
摘要:
A method for continuously forming a large area functional deposited film by a microwave plasma CVD process, said method comprises: continuously moving a substrate web in the longitudinal direction; establishing a substantially enclosed film-forming chamber having a film-forming space by curving and projecting said moving substrate web to form a columnar portion to be the circumferential wall of said film forming chamber on the way moving; introducing a film-forming raw material gas through a gas feed means into said film-forming space; at the same time, radiating or propagating microwave energy into said film-forming space by using a microwave applicator means capable of radiating or propagating said microwave energy with a directivity in one direction of microwave energy to propagate to generate microwave plasma in said film-forming space, whereby continuously forming a functional deposited film on the inner face of said continuously moving circumferential wall to be exposed to said microwave plasma.An apparatus suitable for practicing said method.