Dual function additives: A small molecule crosslinker for enhanced efficiency and stability in organic solar cells

Joseph W. Rumer, Raja S. Ashraf, Nancy D. Eisenmenger, Zhenggang Huang, Iain Meager, Christian B. Nielsen, Bob C. Schroeder, Michael L. Chabinyc, Iain McCulloch

Research output: Contribution to journalArticlepeer-review

62 Scopus citations

Abstract

A bis-azide-based small molecule crosslinker is synthesized and evaluated as both a stabilizing and efficiency-boosting additive in bulk heterojunction organic photovoltaic cells. Activated by a noninvasive and scalable solution processing technique, polymer:fullerene blends exhibit improved thermal stability with suppressed polymer skin formation at the cathode and frustrated fullerene aggregation on ageing, with initial efficiency increased from 6% to 7%.

Original languageEnglish (US)
Article number1401426
JournalAdvanced Energy Materials
Volume5
Issue number9
DOIs
StatePublished - May 1 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • General Materials Science

Keywords

  • crosslinking
  • morphology
  • organic photovoltaic
  • semiconducting polymer
  • stability

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