Easy photovoltaics integration through advanced printing processes
At the LOPEC 2018 in Munich from 13 to 15 March, Fraunhofer IAP is presenting its expertise in inkjet printing technology in particular. For example, larger facade elements can be printed to generate solar energy. Other areas of application include optoelectronics and medicine. The process can also be used for textile applications. In addition to a facade element, the researchers are showing a jacket that generates enough energy to operate hand warmer and mobile phone charger. The energy generated can be stored in the garment itself. IAP researchers are currently working with industrial partners to develop a solar-powered LED-illuminated bicycle jacket.
The printed elements are produced on the institute’s pilot plant for printed electronics. This system is used to develop printing processes on an industrial scale, which are then transferred to the customer’s systems. Fraunhofer researchers are working on a novel drop-on-demand system, the Esjet printing (electro-static printing), for small areas. The technology allows a wider range of inks, which are essential for printing very fine structures. In particular, the viscosity range of the inks used can be significantly extended compared to inkjet printing. This opens up new perspectives for the printing of fine metal grids with high transmission, which can be used in photovoltaics as a replacement for the transparent ITO electrodes commonly used today.
At LOPEC, the researchers will also present the first customer projects of the GOTA Alliance. In cooperation with the machine manufacturers MBraun Inertgas-Systeme GmbH in Munich, Notion GmbH in Schwetzingen and Ardenne GmbH in Dresden, Fraunhofer IAP develops processes and materials for future OLED production plants. The four partners have joined forces to form the OLED Technology Alliance GOTA in order to offer complete OLED production systems on the market.
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