Soltecture
Roof-integrated module SCG-HV-RI
Soltecture
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01 Technical Data
technical description
Sulfurcell develops and produces solar PV modules based on the absorber material Copper-Indium-Sulfide (CIS). Apart from the p-type absorber CIS - this is where the absorbed light is transformed into electric current - a module consists of a second, n-type semicondutor layer, a metallic back contact and a transparent, conducting front contact. Within a module a number of solar cells are series-interconnected.
The most common solar PV modules are based on crystalline silicon as absorbing material. CIS, the material Sulfurcell uses as absorber, has significantly better absorption properties. Therefore, the thickness of a CIS solar cell can be reduced to 1 % of the thickness of a common solar cell based on crystalline silicon.
The various layers a solar module consists of are deposited one after another on a glass substrate. The glass substrate serves twofold, as support for the very thin solar cells and as part of the later encapsulation. For the deposition of the various layers of a CIS based solar PV module techniques such as sputtering are used which have been applied successfully for a long time in the area of large scale glass pane deposition for architectal applications. Using sputtering large areas can be deposited homogenously at low energy consumption.
On the molybdenum back contact precursors consisting of copper and indium are deposited. In the presence of elemental sulfur vapor at a temperature of about 500°C the precursor reacts within a short time to form the absorber material CIS. The device is completed by the deposition of a front contact and after the contacting it is encapsulated to secure it from climatic influences.
In order to realize the integrated series interconnection of a number of cells on one substrate glass the deposited layers have to be disconnected at appropriate spots. This is done typically after the corresponding deposition process. Thus, the fabrication of the solar cells and the solar PV module is combined in one single process chain.
02 Material Properties
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03 Tags
Soltecture Articles, Soltecture Products04 Articles about Soltecture
Positioned in seamless rows
Sulfurcell's solar modules are so ingeniously made that they form an almost perfectly smooth surface, interrupted only by the finest of seams.
Multitalented Undercover Agents
Today, façades do more than merely provide a building with an external boundary or adorn it with an attractive envelope. Above all where energy efficiency is concerned, the function of the façade itself is evolving. And when lighting is allowed to enhance a room without the source of the light getting in the way, the things we are not forced to see become perceptible.
Energy generating glass facade
The thin-film solar cells made by the Berlin-based company Sulfurcell enable the use of building-integrated photovoltaics. They facilitate aesthetically ambitious and sustainable façade solutions that offer great advantages for the building's energy balance as well as its appearance.
› To the article05 Glossary
photovoltaic, integrated solar module, solar module, solar
