Hole and electron extraction layers based on graphene oxide derivatives for high-performance bulk heterojunction solar cells

Adv Mater. 2012 May 2;24(17):2228-33. doi: 10.1002/adma.201104945. Epub 2012 Apr 4.

Abstract

By charge neutralization of carboxylic acid groups in graphene oxide (GO) with Cs(2)CO(3) to afford Cesium-neutralized GO (GO-Cs), GO derivatives with appropriate modification are used as both hole- and electron-extraction layers for bulk heterojunction (BHJ) solar cells. The normal and inverted devices based on GO hole- and GO-Cs electron-extraction layers both outperform the corresponding standard BHJ solar cells.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Carbonates / chemistry
  • Cesium / chemistry
  • Electrodes
  • Electrons
  • Fullerenes / chemistry
  • Graphite / chemistry*
  • Oxides / chemistry*
  • Quantum Theory
  • Solar Energy*
  • Thiophenes / chemistry

Substances

  • (6,6)-phenyl C61-butyric acid methyl ester
  • Carbonates
  • Fullerenes
  • Oxides
  • Thiophenes
  • poly(3-hexylthiophene)
  • Cesium
  • Graphite
  • cesium carbonate