Conversion efficiency improvement mechanisms of polymer solar cells by balance electron-hole mobility using blended P3HT:PCBM:pentacene active layer

Ching Ting Lee, Cheng Hsin Lee

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

To improve the power conversion efficiency of polymer solar cells, the blended P3HT:PCBM:pentacene active layer was used to balance hole-electron mobility and roughen surface. Using space-charged-limited current model to analyze the hole-only devices and the electron-only devices, the P3HT:PCBM:pentacene (weight ratio = 1:0.8:0.09) active layer exhibited balance hole-electron mobility. Compared with the power conversion efficiency of 3.46% of the conventional polymer solar cells using P3HT:PCBM (1:0.8) active layer, the power conversion efficiency of 4.42% was obtained. In other words, the power conversion efficiency was improved about 27.5%.

Original languageEnglish
Pages (from-to)2046-2050
Number of pages5
JournalOrganic Electronics
Volume14
Issue number8
DOIs
Publication statusPublished - 2013 Jan 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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