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Posted: August 24, 2010

Large solar cell module based on organic solar cells

(Nanowerk News) Scientists of the Fraunhofer IPMS succeeded in fabricating a large solar cell module (80 x 20 cm²) based on organic solar cells, which will be presented for the first time at the EU PVSEC 2010. The organic solar cells made and developed by the Fraunhofer IPMS are based on organic molecules, evaporated under high vacuum conditions. Therefore the molecules are deposited on a transparent conductive substrate like glass or web by physical vapour deposition.
The institute director, Professor Karl Leo, comments: "The simple fabrication process and the use of reasonably priced materials enables a very cost-efficient production of organic solar cell modules. In general the conductive substrate is structured by laser, coated with the organic materials and a metal electrode and encapsulated. No further steps are necessary and the monolithic circuit is completed."
The solar cell module consists of 4 submodules based on 200 x 200 mm2 glass-substrates. Easy scalability for larger and customer-specific systems is been given due to the modular approach. According to every need the modules could be interconnected serial or parallel to offer optimum performance depending on the application.
The state-of-the-art equipment of the Fraunhofer IPMS offers optimum infrastructure for research and development and to evaluate and develop customer-specific solar cells under production related conditions.
The development of the technology for processing organic solar cells has been grant-aided by the German Federal Ministry of Education and Research within the OPEG-project (No.: 13N9717).
Source: Fraunhofer IPMS
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