Two step sintering process and metal grid design optimization for highly efficient ITO free organic photovoltaics

Marios Neophytou, Efthymios Georgiou, Marios M. Fyrillas, Stelios A. Choulis

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

The need for inexpensive alternative to indium doped tin oxide (ITO) transparent electrodes is imminent for cost-efficient solution processed optoelectronic applications. ITO-free transparent electrodes can be based on inkjet-printed Silver (Ag) nanoparticles grids embedded into PEDOT:PSS buffer layers. We present an in-depth investigation of the morphological evolution of the inkjet printed Ag nanopartricle sintering process combined with an ultimate control of the printed grid design requirements for efficient ITO-free organic photovoltaics (OPVs). We report on glass/ITO-free P3HT:PC60BM and Si-PCPDTBT:PC70BM based OPVs with power conversion efficiency of 2.8% and 4.9% respectively. These devices exhibited minimal losses when compared to reference ITO-based OPVs.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalSolar Energy Materials and Solar Cells
Volume122
DOIs
Publication statusPublished - Mar 2014

Keywords

  • ITO-Free electrodes
  • Inkjet printing
  • Metal grids
  • Printed electronics
  • Silver nanoparticles
  • Transparent electrodes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films

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