The sector of organic electronics in general has seen great progress in the last years. While the first applications of organic conductive materials were proof-of concept devices, today more and more real applications emerge. Among these organic LEDs (OLEDs) and organic photovoltaics (OPVs) are of great interest for a number of reasons. Compared to the production steps of conventional inorganic solar cells which involve etching processes with highly toxic and environmentally harmful chemicals, the production of organic solar cells is largely unproblematic. 

Furthermore a great advantage of flexible conductive and semi-conductive polymers is the possibility to deposit them in high throughput and cheaper roll-to-roll coating processes. This feature provides huge potential for future production of low cost photovoltaics. The pattern of the solar cells can either be generated by a structured printing step or, as already established in silicon based photovoltaics, by high precision laser scribes (P1/P2/P3). For those scribes 1064nm, 532nm and 355nm are established wavelengths in the area of laser micromachining. In various tests for technology development in customer`s order and  several research projects ultra-short pulse lasers were used to evaluate the applicability of those wavelengths for a selective ablation of an indium tin oxide (ITO) layer on glass and polyethylene terephthalate (PET).  

These processes are already well established in the area of OLED-production. 3D-Micromac AG has developed and successfully introduced a state of the art manufacturing concept for this laser structuring process into the market. Based on the microSTRUCT workstations a laser system was developed for the selective structuring of anode layers. Hereby the nearly transparent semiconductor tin-doped indium oxide (ITO) is used as anode material. In addition to structuring the anode layer, all other layers of the OLED can also be processed. Another application is the repairing of short-circuits and other defects in the layer system of the OLED by isolating the respective areas.

3D-Micromac AG, a leading supplier of customized laser micro machining systems, has gained an established position in the international market over the past several years. As a developer and manufacturer of complex workstations, as a service provider for materials and surface machining or as a solution provider for the development of specific production processes - we are able to find the best solution for every customer’s task.
More: http://www.3d-micromac.com 


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3D-Micromac AG

Mrs. Mandy Gebhardt

Marketing & Public Relations
Technologie-Campus 8
D-09126 Chemnitz, GERMANY 
Phone: +49 (0)371 400 43-26
E-Mail: gebhardt@3d-micromac.com