Effects on Organic Photovoltaics Using Femtosecond-Laser-Treated Indium Tin Oxides

Mei Hsin Chen*, Ya Hsin Tseng, Yi Ping Chao, Sheng Yang Tseng, Zong Rong Lin, Hui Hsin Chu, Jan Kai Chang, Chih-Wei Luo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The effects of femtosecond-laser-induced periodic surface structures (LIPSS) on an indium tin oxide (ITO) surface applied to an organic photovoltaic (OPV) system were investigated. The modifications of ITO induced by LIPPS in OPV devices result in more than 14% increase in power conversion efficiency (PCE) and short-circuit current density relative to those of the standard device. The basic mechanisms for the enhanced short-circuit current density are attributed to better light harvesting, increased scattering effects, and more efficient charge collection between the ITO and photoactive layers. Results show that higher PCEs would be achieved by laser-pulse-treated electrodes.

Original languageEnglish
Pages (from-to)24989-24993
Number of pages5
JournalACS Applied Materials and Interfaces
Volume8
Issue number38
DOIs
StatePublished - 28 Sep 2016

Keywords

  • organic photovoltaics
  • P3HT:PCBM
  • laser-treated ITO
  • femtosecond lasers pulses
  • ultraviolet photoemission spectroscopy
  • scattering effect
  • SOLAR-CELLS
  • SURFACE
  • DAMAGE

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