Skip to main navigation Skip to search Skip to main content

Investigation into the effect of post-annealing on inverted polymer solar cells

  • Rira Kang
  • , Seung Hwan Oh
  • , Seok In Na
  • , Tae Soo Kim
  • , Dong Yu Kim*
  • *Corresponding author for this work
  • Gwangju Institute of Science and Technology
  • Korea Atomic Energy Research Institute

Research output: Contribution to journalJournal articlepeer-review

Abstract

The work-function of indium tin oxide (ITO) electrodes was tuned with an interfacial dipole layer (WPF-oxy-F) to reverse the polarity in polymer solar cells (PSCs) with an inverted structure. The photoactive layer was based on poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM). Silver (Ag) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) were used as the top anode. The optimized conditions for the fabricated I-PSCs included an open-circuit voltage (Voc) of 0.68 V, a fill factor (FF) of 64%, and a power conversion efficiency (PCE) of 3.86% through post-annealing at 170 C. The high performance of I-PSC is due partly to the improved interfacial contact at active/PEDOT:PSS and mainly to the increase of the work-function of annealed PEDOT:PSS/Ag at 170 C for 30 min. Here, we investigated the effect of post-annealing on I-PSC devices by carrying out various annealing sequences.

Original languageEnglish
Pages (from-to)131-135
Number of pages5
JournalSolar Energy Materials and Solar Cells
Volume120
Issue numberPART A
DOIs
StatePublished - 2014

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

  • Conjugated polyelectrolyte
  • Inverted polymer solar cells
  • Post-annealing
  • Thermal annealing treatment
  • Water-soluble polyfluorene

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Engineering - Electrical & Electronic

Fingerprint

Dive into the research topics of 'Investigation into the effect of post-annealing on inverted polymer solar cells'. Together they form a unique fingerprint.

Cite this