Enhancement of device performance of organic solar cells by an interfacial perylene derivative layer

Inho Kim, Hanna M. Haverinen, Jian Li, Ghassan E. Jabbour

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

We report that device performance of organic solar cells consisting of zinc phthalocyanine and fullerene (C60) can be enhanced by insertion of a perylene derivative interfacial layer between fullerene and bathocuproine (BCP) exciton blocking layer (EBL). The morphology of the BCP is influenced by the underlying N,N′-dihexyl-perylene-3,4,9,10-bis(dicarboximide) (PTCDI-C6), which promotes migration of the cathode metal into the BCP layer. Insertion of a PTCDI-C6 layer between fullerene and BCP layers enhances the power conversion efficiency to 2.5%, an improvement of 32% over devices without PTCDI-C6 layer. The enhancement in device performance by insertion of PTCDI-C6 is attributed to a reduction in series resistance due to promoted metal migration into BCP and optimized optical interference effects in multilayered devices.

Original languageEnglish (US)
Pages (from-to)1390-1394
Number of pages5
JournalACS Applied Materials and Interfaces
Volume2
Issue number5
DOIs
StatePublished - May 26 2010

Keywords

  • Bathocuproine
  • Exciton blocking layer
  • Organic solar cells
  • Perylene derivative

ASJC Scopus subject areas

  • Materials Science(all)

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