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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
  • Instituto de Estructura de la Materia (IEM-CSIC)
  • Instituto de Química Física Rocasolano (IQFR-CSIC)
  • Technical University of Munich

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

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 C71-butyric acid methyl ester (PC71BM) 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 PC71BM or a bulk heterojunction with a P3HT:PC71BM 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.

Original languageEnglish
Pages (from-to)31894-31901
Number of pages8
JournalACS Applied Materials and Interfaces
Volume8
Issue number46
DOIs
StatePublished - 23 Nov 2016

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • grazing incidence X-ray scattering
  • laser-induced periodic surface structures
  • organic photovoltaics
  • polymer films
  • semiconductor polymers

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