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Updated: May 24, 2026

Light-induced Patterning and Grafting for Slippery Surfaces based on Silane-coated Nanoporous Structures
Published on: November 14, 2025
Efficiency enhancement of organic solar cells by fabricating periodic surface textures using direct laser
Lars Müller-Meskamp1, Yong Hyun Kim, Teja Roch
1Dresdner Innovationszentrum Energieeffizienz and Institut für Angewandte Photophysik Technische, Universität Dresden, George-Bähr Straße 1, Dresden, Germany. lars.mueller-meskamp@iapp.de
Abstract:
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.

