摘要:
A solar cell substrate has irregularities on a surface which is in contact with a photo-electric conversion layer, and light is incident on the side of the irregularities. The height of the irregularities is set so that the root mean square height is in a range of 15 nm to 600 nm, and tan &thgr; is in a range of 0.10 to 0.30, where &thgr; is the angle of incline of the surface of the irregularities with respect to an average line of the irregularities. Light incident on the irregularities is scattered at the interface. This increases the optical path length and thus the quantity of light absorbed in the photo-electric conversion layer, resulting in improved efficiency. Additionally, the photo-electric conversion layer can be made thinner reducing deposit time and manufacturing cost. Further, collision of crystals is not incurred, thus preventing deterioration of photo-electric conversion efficiency which is caused by defects.
摘要:
A substrate 1 for a photoelectric conversion device includes a first transparent conductive layer 5 formed on at least a part of the surface region of a transparent substrate 3, the first transparent conductive layer 5 having at least an opening portion 7 exposing the substrate 3.
摘要:
Semiconductor layer forming gas is introduced into a reaction chamber, and the gas generates a plasma discharge, so that a semiconductor layer is formed. In addition to the gas, impurity gas is introduced into the chamber, and first conductivity type layer forming gas including the semiconductor layer forming gas and the impurity gas generates a plasma discharge, so that a first conductivity type layer of a first conductivity type is formed so as to cover the semiconductor layer. In the step of forming the first conductivity type layer, a composition set value of gas supplied to the chamber is shifted from a composition of the semiconductor layer forming gas to a composition of the first conductivity type layer forming gas in a state where a pressure in the chamber is not reduced to ultimate vacuum even after a plasma discharge processing for forming the semiconductor layer is terminated.
摘要:
A photoelectric conversion device includes a substrate and a transparent, electrically conductive film covering at least a portion of a major surface of the substrate and having an irregular geometry on a surface thereof closer to a semiconductor layer. Furthermore, the photoelectric conversion device includes a first conduction type semiconductor layer covering at least a portion of the irregular geometry of the transparent, electrically conductive film, and a light absorption layer covering the first conduction type semiconductor layer. The irregular geometry has a bump having a maximum height equal to or larger than 50 nm and equal to or smaller than 1200 nm. The bump has a surface having a submicron recess having local peaks having a spacing equal to or larger than 2 nm and equal to or smaller than 25 nm.
摘要:
To provide a stacked photoelectric conversion device and a method for producing the same, in which an interlayer is provided between photoelectric conversion layers to obtain an effect of controlling the amount of incidence light, and carrier recombination at an interface between the interlayer and a semiconductor layer is decreased to enhance photoelectric conversion efficiency.The stacked photoelectric conversion device of the present invention comprises a plurality of silicon-based photoelectric conversion layers having a p-i-n structure stacked, wherein at least a pair of adjacent photoelectric conversion layers have an interlayer of a silicon nitride therebetween, the pair of the photoelectric conversion layers are electrically connected with each other, and a p-type silicon-based semiconductor layer constituting a part of the photoelectric conversion layer and contacting the interlayer contains a nitrogen atom.
摘要:
The thin-film solar cell module according to the present invention has a substrate and a cell module that includes three or more cell strings, each of which has a constant width, and is characterized in that each cell string has a plurality of solar cells which are connected in series, the cell strings are provided on the substrate so as to be aligned in a direction perpendicular to a direction in which the solar cells are connected in series and connected to each other in parallel, the solar cells each have a front surface electrode, a photoelectric conversion layer and a rear surface electrode stacked in this order, the cell strings have contact lines which electrically connect the front surface electrode of one of neighboring solar cells of the solar cells and the rear surface electrode of the other, the solar cells being included in the cell string, and have the same width as the cell string, and at least one of the cell strings at the two ends of the above described three or more cell strings has a width greater than the other cell strings.
摘要:
A photoelectric conversion device includes a p-type layer, an i-type layer and an n-type layer each made of a silicon base semiconductor, stacked in this order, wherein the i-type layer contains n-type impurities in a concentration of 1.0×1016 to 2.0×1017 cm−3.
摘要:
To provide a thin-film solar cell module capable of preventing damage to a cell and a contact line.A thin-film solar cell module of the present invention has a characteristic that it provides a cell module having a plurality of cell strings bidirectionally connected to each other in parallel, the cell strings each having a plurality of cells connected to each other in series via a contact line, wherein when an output from the cell module is P (W), an output from one of the cell strings is Ps (W), and an area of the contact line is Sc (cm2) under a condition of light source: xenon lamp, irradiance: 100 mW/cm2, AM: 1.5, and temperature: 25° C., (P−Ps)/Sc is 10.7 (kW/cm2) or less, Ps is 12 W or less, and P is 385 W or less.
摘要翻译:提供能够防止电池和接触线损坏的薄膜太阳能电池模块。 本发明的薄膜太阳能电池模块具有以下特征:提供具有彼此并联连接的多个单元串的单元模块,每个单元串均具有多个单元串联连接 接触线,其中当来自所述电池模块的输出为P(W)时,所述电池串中的一个的输出为Ps(W),并且在光源的条件下所述接触线的面积为Sc(cm2) :氙灯,辐照度:100mW / cm 2,AM:1.5,温度:25℃,(P-Ps)/ Sc为10.7(kW / cm 2)以下,Ps为12W以下,P 385瓦或以下。
摘要:
To provide a stacked photoelectric conversion device and a method for producing the same, in which an interlayer is provided between photoelectric conversion layers to obtain an effect of controlling the amount of incidence light, and carrier recombination at an interface between the interlayer and a semiconductor layer is decreased to enhance photoelectric conversion efficiency.The stacked photoelectric conversion device of the present invention comprises a plurality of silicon-based photoelectric conversion layers having a p-i-n structure stacked, wherein at least a pair of adjacent photoelectric conversion layers have an interlayer of a silicon nitride therebetween, the pair of the photoelectric conversion layers are electrically connected with each other, and a p-type silicon-based semiconductor layer constituting a part of the photoelectric conversion layer and contacting the interlayer contains a nitrogen atom.
摘要:
A photoelectric conversion device includes a p-type layer, an i-type layer and an n-type layer each made of a silicon base semiconductor, stacked in this order, wherein the i-type layer contains n-type impurities in a concentration of 1.0×1016 to 2.0×1017 cm−3.
摘要翻译:光电转换装置包括依次堆叠的由硅基半导体制成的p型层,i型层和n型层,其中i型层含有浓度为 1.0×10 16至2.0×10 17 cm -3。