Enhanced efficiency of bilayer polymer solar cells by the solvent treatment method

Jihoon Lee, Yun Kyung Jung, Dal Yong Lee, Jae Won Jang, Shinuk Cho, Semo Son, Junghyun Jeong, Sung Heum Park

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

We successfully facilitated an enhancement in the efficiency of polymer bilayer solar cells using the solvent treatment method. Specifically, after creating a poly(3-hexylthiophene-2,5-diyl(P3HT)/[6,6]-phenyl-C61-butyric-acid-methyl-ester (PCBM) bilayer structure by the use of an orthogonal solvent, we applied the solvent treatment method to the bilayer solar cell to improve the device performance. When the interfaces between the P3HT layer and the PCBM layer and between the PCBM layer and the Al electrode were treated with methanol, the bilayer SCs showed significantly enhanced device performance with improved Jsc FF, and PCE.

Original languageEnglish
Pages (from-to)408-412
Number of pages5
JournalSynthetic Metals
Volume199
DOIs
StatePublished - Jan 2015

Keywords

  • Bilayer
  • Organic solar cell
  • Orthogonal solvent
  • P3HT
  • PCBM
  • Solvent treatment

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