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Two-step brush-painted PEDOT:PSS electrodes for ITO-free organic solar cells

  • Seok Soon Kim*
  • , Se Phin Cho
  • , Seok In Na
  • *Corresponding author for this work
  • Kunsan National University
  • Jeonbuk National University

Research output: Contribution to journalJournal articlepeer-review

Abstract

To demonstrate efficient and reliable indium thin oxide (ITO)-free organic solar cells (OSCs), we fabricated highly conductive poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) electrodes by two-step brush-painting of PEDOT:PSS and dimethyl sulfoxide (DMSO). While one-step brush-painted electrodes with PEDOT:PSS and DMSO mixed solution showed large deviation in morphology and efficiency, uniform and highly conductive PEDOT:PSS electrodes were obtained by successive brush-painting of PEDOT:PSS and DMSO, respectively. ITO-free OSC exhibiting power conversion efficiency (PCE) of 3.74% was successfully demonstrated by optimized successive brush-painting.

Original languageEnglish
Pages (from-to)40-45
Number of pages6
JournalJournal of Industrial and Engineering Chemistry
Volume62
DOIs
StatePublished - 2018.06.25

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

  • Brush-painting
  • ITO-free
  • Organic solar cells
  • PEDOT:PSS electrodes
  • Two-step

Quacquarelli Symonds(QS) Subject Topics

  • Engineering - Chemical

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