Partitioning of the organic layers for the fabrication of high efficiency organic photovoltaic devices

Nam Su Kang, Byeong Kwon Ju, Changhee Lee, Jae Pyoung Ahn, Byung Doo Chin, Jae Woong Yu

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Lateral partitioning of hole extraction layer with insulating walls improved the power conversion efficiency of organic photovoltaic device. When the conductivity of the hole extraction layer is low, no improvement is obtained by partitioning. However, when the conductivity is high, a significant improvement was obtained in the partitioned cells, showing the estimated power conversion efficiency of 4.58% compared to the 3.54% of the single cell structure. This improvement, carefully corrected by masking at measurement, could be explained by the reduction of series resistance. Although accurate estimation of device area at partitioned device might be difficult, its effectiveness on the properties of large area organic photovoltaic device is clear, as shown in the result of 1 cm2-size cell with the same manner.

Original languageEnglish
Pages (from-to)1091-1096
Number of pages6
JournalOrganic Electronics
Volume10
Issue number6
DOIs
Publication statusPublished - 2009 Sep

Keywords

  • Bulk heterojunction
  • Hole extraction layer
  • Organic photovoltaic
  • Partitioned cells
  • Series resistance

ASJC Scopus subject areas

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

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