Mitsubishi Cooperation (MC) has developed a new organic photovoltaic (OPV) module in conjunction with Tokki Corporation (TOKKI) and the National Institute of Advanced Industrial Science and Technology (AIST).
The three organisations have been conducting a Joint Research and Development project for OPVs since March last year.
Highlighting that the efficiency of OPVs in converting sunlight has proved to be a major hurdle so far, the companies believe they have developed a highly-integrated technology to address this issue.
The new module uses laser-scribing technology on a glass substrate. Organic semiconductor materials are deposited on the substrate and then divided into several cells with the laser. The technology eliminates the need for, deposition mask patterning, which is used in conventional methods.
Frontier Carbon Corporation (FCC), an MC subsidiary, is supplying the C60 being used in the module’s production. The company shared that in the new OPV module, fullerene (C60) from FCC is used as a n-type of semiconductor (acceptor) and Phthalocyanine (CuPc) as a p-type of semiconductor (donor).
AIST has its own Research Centre for Photovoltaics (RCPV) that was set up in 2004. Tokki, which is a producer of vaccum technology products and manufacturer of machinery for organic electro-luminescence (OLED) displays, introduced OPV manufacturing machinery in December 2006.
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