Optimization of transparent electrode processing conditions for bulk heterojunction solar cells

Yechuan Sun, Annie Ng, Man Kin Fung, Alan Man Ching Ng, Aleksandra B. Djurišić, Wai Kin Chan

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

In this work, semi-transparent inverted polymer solar cells with poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate; PEDOT:PSS) top electrodes were fabricated by spincoating process. Poly(3-hexylthiophene; P3HT):[6,6]-phenyl C61-butyric acid methyl ester (PCBM) was used as a model material combination for a bulk heterojunction solar cell, because this material combination has been frequently studied, and its properties and performance have been well established. For enhancing the wetting of P3HT:PCBM blend film, different plasma etching conditions were tried. In addition, different high boiling point organic additives were tried to enhance the conductivity of PEDOT:PSS. The performance of solar cells with different fabrication conditions for the top electrode was compared. The best performance was obtained for Ar plasma etching to improve wetting of PEDOT:PSS and the addition of ethylene glycol to improve conductivity.

Original languageEnglish
Article number021005
JournalJournal of Photonics for Energy
Volume2
Issue number1
DOIs
Publication statusPublished - Jan 2012
Externally publishedYes

Keywords

  • Bulk heterojunction solar cells
  • Inverted solar cells
  • Plasma treatment

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