4.7 Article

A New Function of N719: N719 Based Solution-Processible Binary Cathode Buffer Layer Enables High-Efficiency Single-Junction Polymer Solar Cells

Journal

SOLAR RRL
Volume 1, Issue 3-4, Pages -

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/solr.201700014

Keywords

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Funding

  1. National Natural Science Foundation of China (NSFC) [91433202, 21327805, 21221002, 91227112]
  2. Chinese Academy of Sciences (CAS) [XDB12010200]

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An N719 based high-efficiency binary cathode buffer layer (CBL) was developed. The work-function of the Al cathode was precisely modulated between -3.3 and -3.9 eV due to the cation re-arrangement between the binary components, induced by finely controlling the binary-components weight ratio. A 10.50%- and 11.46%-efficiency organic solar cells were reported with the use of the N719 and the binary CBL, respectively.

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