EPJ Web of Conferences (Jan 2019)

Instantaneous charge separation in non-fullerene acceptor bulk-heterojunction of highly efficient solar cells

  • Franco V. A. Camargo,
  • Gasparini Nicola,
  • Nagahara Tetsuhiko,
  • Lüer Larry,
  • Cerullo Giulio,
  • Brabec Christoph

DOI
https://doi.org/10.1051/epjconf/201920505010
Journal volume & issue
Vol. 205
p. 05010

Abstract

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Using broadband transient absorption in a high efficiency (>11%) photovoltaic blend with a non-fullerene acceptor, we observe instantaneous (sub-30 fs) charge separation, demonstrating close to ideal donor-acceptor level matching and nanomorphology in this blend.