Abstract:
The invention relates to a thin-film solar cell module (71) in which a layer (72) of TCO is applied on a glass substrate (73). On this layer (72) of TCO is disposed a semiconductor layer (75) on which is applied an electrically conducting backside layer (85). The backside layer (85) includes a bridge element (88) in contact with the layer (72) of TCO. Directly on the layer (72) of TCO are applied busbars (82) by means of a printing method. The busbars (82) are herein connected with the backside layer (85) via the layer (72) of TCO.
Abstract:
Die Erfindung betrifft ein Verfahren zur Herstellung von Solarzellen umfassend wenigstens eine p-i-n-Schichtenfolge mit mikrokristallinen Schichten mit Hilfe eines PE-CVD-Verfahrens. Das Verfahren wird dadurch gekennzeichnet, dass alle Schichten der p-i-n Schichtenfolge in einem Einkammerprozess abgeschieden werden. Dabei wird ein Elektrodenabstand zwischen 5 und 15 mm gewählt und die Gasverteilung erfolgt über einen Showerhead-Gaseinlass, der eine homogene Verteilung des Gases über das Substrat gewährleistet. Es werden SiH 4 -Gasflüsse zwischen 0,01 und 3 sccm/cm 2 zugegeben, wobei ein Prozessdruck zwischen 8 und 50 hPa eingestellt wird. Die Heizertemperatur wird zwischen 50 und 280°C eingestellt und die HF-Leistung beträgt zwischen 0,2 und 2 Watt/cm 2 . Die H 2 -Gasflüsse betragen zwischen 0,3 und 30 sccm/cm 2 , insbesondere zwischen 0,3 und 10 sccm/cm 2 .
Abstract:
A laser scribing device 20 is provided which comprises at least a laser light source 21. The laser light source 21 may generate a laser beam 22 for scribing cell lines 12a, 12b,...;13a, 13b,...; 14a, 14b,... to form a patterned solar cell module 10. Furthermore, the laser 21 may emit a light beam 23 for generating a light spot 24 on the surface of the solar cell module. The light beam 23 may be modulated compared with the light beam 22 used for the scribing process. By means of the light spot 24 a particular region of the active area 18 of the solar cell module may be illuminated, and the voltage V oc (L) may be measured at a voltage measurement device 25. The voltage measurement device 25 is connected between the negative contact area 15 and the positive contact area 16 of the solar cell module 10. The measured voltage V oc (L) depends on the location of the laser spot 24 on the solar cell module 10 and the intensity of the laser spot 24.
Abstract:
A solar cell module 1 comprises a transparent substrate 2, e.g. a glass substrate. On top of the glass substrate 2 a layer system 3 is deposited. The layer system 3 comprises a front electrode 4 which may be a transparent conductive oxide (TCO) layer. Furthermore, the layer system 3 comprises a thin film semiconductor layer 5 deposited on the front electrode layer 4. A back electrode is formed on the thin film semiconductor layer 5 which includes a very thin metal layer 6 having a thickness d smaller than 50 nm. A Lambertian reflective layer 7 is deposited on the thin metal layer 6 in order to reflect light transmitted through the metal layer 6.
Abstract:
A semiconductor device module is provided, including a number of n semiconductor devices formed on a substrate (10), n being an integer = 2; each semiconductor device having a stack of a first contact layer region (12; 22), a semiconductor layer region (30), and a second contact layer region (40); wherein the first contact layer region of each (n-1)th semiconductor device is connected to the second contact layer region of the nth semiconductor device by an interconnection (46); and wherein, of the first and second contact layer regions, at least the first contact layer region of at least one of the semiconductor devices has a varying thickness, the thickness being maximum at the interconnection.
Abstract:
The invention relates to a thin-film solar cell module (71) in which a layer (72) of TCO is applied on a glass substrate (73). On this layer (72) of TCO is disposed a semiconductor layer (75) on which is applied an electrically conducting backside layer (85). The backside layer (85) includes a bridge element (88) in contact with the layer (72) of TCO. Directly on the layer (72) of TCO are applied busbars (82) by means of a printing method. The busbars (82) are herein connected with the backside layer (85) via the layer (72) of TCO.
Abstract:
The invention relates to a thin-film solar cell module (71) in which a layer (72) of TCO is applied on a glass substrate (73). On this layer (72) of TCO is disposed a semiconductor layer (75) on which is applied an electrically conducting backside layer (85). The backside layer (85) includes a bridge element (88) in contact with the layer (72) of TCO. Directly on the layer (72) of TCO are applied busbars (82) by means of a printing method. The busbars (82) are herein connected with the backside layer (85) via the layer (72) of TCO.
Abstract:
A semiconductor device module is provided, including a number of n semiconductor devices formed on a substrate (10), n being an integer ≥ 2; each semiconductor device having a stack of a first contact layer region (12; 22), a semiconductor layer region (30), and a second contact layer region (40); wherein the first contact layer region of each (n-1)th semiconductor device is connected to the second contact layer region of the nth semiconductor device by an interconnection (46); and wherein, of the first and second contact layer regions, at least the first contact layer region of at least one of the semiconductor devices has a varying thickness, the thickness being maximum at the interconnection.
Abstract:
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 texturise ZnO layers of up to 1 m 2 . 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.
Abstract:
Die Erfindung beschreibt ein einfaches Verfahren zur Behandlung von Substraten, die auf starren oder flexiblen Trägern angeordnete vorstrukturierte Zinkoxidschichten aufweisen, bei dem das ZnO mit einem Ätzmedium behandelt, und anschließend mit einer Reinigungsflüssigkeit behandelt wird. Dabei erfolgt die Behandlung mit der Ätzflüssigkeit und der Reinigungsflüssigkeit, während das Substrat durch eine Vorrichtung transportiert wird. Das Verfahren ist prozesstechnisch wenig aufwändig und ermöglicht regelmäßig eine homogenen Aufrauung und Texturierung von bis zu 1 m 2 großen ZnO-Schichten. Die Vorrichtung zur Behandlung von Substraten, die auf starren oder flexiblen Trägern angeordnete vorstrukturierte Zinkoxidschichten aufweisen, weist dazu in erstes Mittel zum Behandeln des Substrates mit einer Ätzflüssigkeit, ein zweites Mittel zum Behandeln des Substrates mit Reinigungsflüssigkeit, und ein weiteres Mittel, insbesondere Transportrollen, zum Transport des Substrates von dem ersten zum zweiten Mittel auf.