摘要:
A method for producing periodic crystalline silicon nanostructures of large surface area by: generating a periodic structure having a lattice constant of between 100 nm and 2 μm on a substrate, the substrate used being a material which is stable at up to at least 570° C., and the structure being produced with periodically repeating shallow and steep areas/flanks, and, subsequently, depositing silicon by directed deposition onto the periodically structured substrate, with a thickness in the range from 0.2 to 3 times the lattice constant, or 40 nm to 6 μm, at a substrate temperature of up to 400° C., followed by thermally treating the deposited Si layer to effect solid-phase crystallization, at temperatures between 570° C. and 1400° C., over a few minutes up to several days, and optionally subsequently wet-chemically selective etching to remove resultant porous regions of the Si layer.
摘要:
A thin-film solar module contacted on one side includes a support layer, a photoactive absorber layer and at least one dopant layer deposited over a surface area of at least one side of the absorber layer so as to form a thin-film packet that is divided into thin-film solar cell areas by insulating separating trenches. The thin-film solar module includes first and second contact systems. The first contact system includes contacts connected by an outer contact layer. The second contact system consists of an inner contact layer covering a side of the solar cell areas that face away from the support layer so as to separately discharge excess charge carriers generated by incident light in the absorber layer. The second contact system includes structures that surround and electrically insulate the contacts, which extend through the inner contact layer from the outer contact layer. The first and second contact systems are electrically conductive and connected in series by series contacts in interconnection areas and electrically insulated from each other by an insulation layer outside of the interconnection areas.
摘要:
A window pane is slidably driven in two guides by an electric motor. A piezoelectric vibrator vibrates the window pane to facilitate sliding movement of the window pane relative to the guides and a delay relay enables the vibrator to start operation before the motor is actuated.
摘要:
A solar cell includes a photoactive, semiconductive absorber layer configured to generate excess charge carriers of opposed polarity by light incident on a front of the absorber layer during operation. The absorber layer is configured to separate and move, via at least one electric field formed in the absorber layer, the photogenerated excess charge carriers of opposed polarity over a minimal effective diffusion length Leff,min. The absorber layer has a thickness Lx of 0
摘要:
The invention relates to a method for producing solar cells comprising at least one p-i-n layer sequence containing micro-crystalline layers with the aid of a PECVD method. Said method is characterised in that all layers of the p-i-n layer sequence are deposited in a single-chamber process. The electrodes are interspaced at a distance of between 5 and 15 mm and the gas is distributed by means of a shower-head gas inlet, which guarantees a homogeneous distribution of the gas over the substrate. SiH4 gas streams with values of between 0.01 and 3 sccm/cm2 are added with a process pressure of between 8 and 50 hPa. The heater temperature is set at between 50 and 280° C. and the HF output is between 0.2 and 2 watt/cm2. The H2 gas streams have values of between 0.3 and 30 sccm/cm2, in particular between 0.3 and 10 sccm/cm2.
摘要翻译:本发明涉及一种用于生产太阳能电池的方法,该方法包括借助于PECVD方法的包含微晶层的至少一个p-i-n层序列。 所述方法的特征在于,将p-i-n层序列的所有层沉积在单室工艺中。 电极间距为5至15毫米,气体通过淋浴头气体入口分布,保证了气体在衬底上的均匀分布。 加入值在介于0.01和3sccm / cm 2之间的SiH 4 H 4气流以8至50hPa的过程压力加入。 加热器温度设定在50和280℃之间,HF输出在0.2和2瓦特/平方厘米之间。 H 2气流的值为0.3至30sccm / cm 2,特别是0.3至10sccm / cm 2之间。
摘要:
The invention relates to a method for the production of a conductive and transparent zinc oxide layer on a substrate by reactive sputtering. The process comprises a hysteresis region. Said method is characterised by the following steps: A doped metal Zn target is used, whereby the doping content of the target is less than 2.3 at-%, the heater is adjusted for the substrate in such a manner that a substrate temperature is adjusted to above 200° C. A dynamic deposition rate is adjusted to more than 50 nm*m/min, which corresponds to a static deposition rate which is greater than 190 nm/min, and a stabilised working point is selected within the unstable process range which is between the turning point between a stable, metal and unstable process and between the inflection point of the stabilised process curve.
摘要:
The inventive method for depositing silicon onto a substrate firstly involves the introduction of a reactive silicon-containing gas and hydrogen into the plasma chamber and then the initiation of the plasma. After initiating the plasma, only reactive silicon-containing gas or a gas mixture containing hydrogen is supplied to the plasma chamber in an alternatively continuous manner, and the gas mixture located inside the chamber is, at least in part, simultaneously withdrawn from the chamber. From the start, homogeneous microcrystalline silicon is deposited onto the substrate in the presence of hydrogen.
摘要:
A motor vehicle navigation system arrangement includes a receiver for receiving information from a navigation system and an evaluation unit connected with the receiver for evaluating received navigation data and determining the current position of the vehicle. In addition, a country-determining arrangement is connected to the evaluation unit to determine from the position data the country in which the vehicle is currently located and a control unit sets vehicle parameters in accordance with the requirements of that country.
摘要:
A headrest for a motor vehicle seat has pivoted lateral headrest elements which can be turned into a use position from a storage position is a headrest body. In order to comply with safety standards regarding support and freedom of vision and to satisfy multifunctional headrest requirements, the lateral headrest elements are integrated in the headrest body surface contour in the storage position and can be swung or pivoted out of the headrest body contour by a swinging or pivoting movement.
摘要:
A simple process is disclosed for treating substrates having pre-structured zinc oxide layers on rigid or flexible supports. The ZnO is treated with an etching medium then with a cleaning liquid. The treatment with the etching and cleaning liquids is carried out while the substrate is conveyed through a device. The process is technically simple to implement and makes it possible to regularly and homogeneously roughen and texturize ZnO layers of up to 1 m2. The device for treating substrates having pre-structured zinc oxide layers on rigid or flexible supports has for that purpose a first means for treating the substrate with an etching liquid, a second means for treating the substrate with a cleaning liquid, and another means, in particular transport rollers, for conveying the substrate from the first to the second means.