journal article·2016-11-23

Laser-Induced Periodic Surface Structures on P3HT and on Its Photovoltaic Blend with PC71BM

Jing Cui, Álvaro Rodríguez-Rodríguez, Margarita Hernández, Mari-Cruz García-Gutiérrez, Aurora Nogales, Marta Castillejo, Daniel Moseguí González, Peter Müller-Buschbaum, Tiberio A. Ezquerra, Esther Rebollar

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Abstract

We describe the conditions for optimal formation of laser-induced periodic surface structures (LIPSS) over poly(3-hexylthiophene) (P3HT) spin-coated films. Optimal LIPSS on P3HT are observed within a particular range of thicknesses and laser fluences. These conditions can be translated to the photovoltaic blend formed by the 1:1 mixture of P3HT and [6,6]-phenyl C 71 -butyric acid methyl ester (PC 71 BM) when deposited on an indium tin oxide (ITO) electrode coated with (poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS). Solar cells formed by using either a bilayer of P3HT structured by LIPSS covered by PC 71 BM or a bulk heterojunction with a P3HT:PC 71 BM blend structured by LIPSS exhibit generation of electrical photocurrent under light illumination. These results suggest that LIPSS could be a compatible technology with organic photovoltaic devices.
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Research context

OpenAlex topics: Organic Electronics and Photovoltaics · Force Microscopy Techniques and Applications · Nonlinear Optical Materials Studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Instituto de Estructura de la Materia (IEM-CSIC), Serrano 121, 28006 Madrid, Spain

Instituto de Química Física Rocasolano (IQFR-CSIC), Serrano 119, 28006 Madrid, Spain

Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Strasse 1, 85748 Garching, Germany

Funding

Ministerio de Economía y Competitividad · Deutsche Forschungsgemeinschaft · Bayerisches Staatsministerium für Bildung und Kultus, Wissenschaft und Kunst · China Scholarship Council

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