Flexible, light trapping substrates for organic photovoltaics | Zendy

Yoonseok Park | Zendy; Jana Berger | Zendy; Zheng Tang | Zendy; Lars MüllerMeskamp | Zendy; Andrés Fabián Lasagni | Zendy; Koen Vandewal | Zendy; Karl Leo | Zendy

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Flexible, light trapping substrates for organic photovoltaics

Author(s) -

Yoonseok Park,

Jana Berger,

Zheng Tang,

Lars MüllerMeskamp,

Andrés Fabián Lasagni,

Koen Vandewal,

Karl Leo

Publication year - 2016

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4962206

Subject(s) - organic solar cell , materials science , optoelectronics , trapping , photovoltaics , photovoltaic system , energy conversion efficiency , polyethylene terephthalate , interference (communication) , nanotechnology , optics , polymer , composite material , ecology , channel (broadcasting) , electrical engineering , biology , engineering , physics

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

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