Polyacetylene-based polyelectrolyte as a universal interfacial layer for efficient inverted polymer solar cells

  • Nam, S
  • Seo, J
  • Song, M
  • Kim, H
  • Ree, M
  • Gal, Y
  • Bradley, D
  • Kim, Y
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Publication date
January 2017
Publisher
Elsevier BV

Abstract

Here we report that poly(N-dodecyl-2-ethynylpyridiniumbromide) (PDEPB) interlayers between electron-collecting zinc oxide (ZnO) layers and bulk heterojunction (BHJ) layers act as a universal interfacial layer for improving the performances of inverted-type polymer:fullerene solar cells. Three different BHJ layers, poly(3-hexylthiophene) (P3HT):[6,6]-phenyl-C 61 -butyric acid methyl ester (PC 61 BM), poly[(4,8-bis(2-ethylhexyloxy)-benzo[1,2-b:4,5-b']dithiophene)-2,6-diyl-alt-(N-2-ethylhexylthieno[3,4-c] pyrrole-4,6-dione)-2,6-diyl]] (PBDTTPD):PC 61 BM, and poly[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b'] dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno[3,4-b]-thiophenediyl] (PTB7) and [6,6]-phenyl-C 71 -butyric acid methyl...

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