Efficiency Enhancement of Organic Solar Cells by Fabricating Periodic Surface Textures using Direct Laser Interference Patterning

Direct laser interference patterning (DLIP) is used to fabricate large area, two‐dimensional periodic surface patterns on polyethylene terephthalate (PET) substrates to enhance the performance of ZnPc:C60 solar cells by light concentration in the absorber layer. Comparing the power conversion effici...

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Veröffentlicht in:	Advanced materials (Weinheim) 2012-02, Vol.24 (7), p.906-910
Hauptverfasser:	Müller-Meskamp, Lars, Kim, Yong Hyun, Roch, Teja, Hofmann, Simone, Scholz, Reinhard, Eckardt, Sebastian, Leo, Karl, Lasagni, Andrés Fabián
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption absorption enhancement direct laser interference patterning Electrodes Fullerenes - chemistry Indoles - chemistry Lasers light trapping Organic Chemicals - chemistry organic photovoltaic Organometallic Compounds - chemistry Polyethylene Terephthalates - chemistry Polystyrenes - chemistry solar cell Solar Energy Thiophenes - chemistry
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Beschreibung
Zusammenfassung:	Direct laser interference patterning (DLIP) is used to fabricate large area, two‐dimensional periodic surface patterns on polyethylene terephthalate (PET) substrates to enhance the performance of ZnPc:C60 solar cells by light concentration in the absorber layer. Comparing the power conversion efficiencies to the reference cell on flat PET, a relative increase of 21% is observed for the hexagonal pattern with 0.7 μm period, depicted in the figure.
ISSN:	0935-9648 1521-4095
DOI:	10.1002/adma.201104331