Improved performance in polymer solar cells using mixed PC61BM/PC71BM acceptors

Seo Jin Ko, Wonho Lee, Hyosung Choi, Bright Walker, Seungjib Yum, Seongbeom Kim, Tae Joo Shin, Han Young Woo, Jin Young Kim

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)


A ternary blend polymer solar cell (PSC) comprising a semicrystalline polymer and two fullerene derivatives (C60, C70) shows a substantial increase in energy conversion efficiency as compared to that of corresponding binary blend PSCs. The enhancement in device efficiency results from an increase in short-circuit current density and a minimization of the fill factor decrease at the optimum blend ratio.

Original languageEnglish
Article number1401687
JournalAdvanced Energy Materials
Issue number5
Publication statusPublished - 2015 Mar 1
Externally publishedYes


  • bulk heterojunction
  • lamellar structures
  • polymer solar cells
  • ternary blends
  • two-acceptor systems

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)


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