
Publica
Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten. Flexible, light trapping substrates for organic photovoltaics
| Applied Physics Letters 109 (2016), No.9, Art. 093301 ISSN: 0003-6951 (Print) ISSN: 1077-3118 |
| Bundesministerium für Bildung und Forschung BMBF FKZ 13N13720; UNVEiL |
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| English |
| Journal Article |
| Fraunhofer IWS () |
| Organic lasers; Organic solar cells; Plastic bottles |
Abstract
Micro-structured organic photovoltaic (OPV) devices on polyethylene terephthalate substrates are produced using direct laser interference patterning (DLIP). The performance of organic solar cells on these substrates is improved by a factor of 1.16, and a power conversion efficiency of 7.70% is achieved. We show that a shorter spatial period of the pattern allows for a stronger light trapping effect in solar cell, as it leads to a longer light path. Moreover, since the patterned structures are located on the outside of the fully encapsulated OPV devices, there are no problems with the roughness induced shunts.