4.8 Article

Thin Insulating Tunneling Contacts for Efficient and Water-Resistant Perovskite Solar Cells

Journal

ADVANCED MATERIALS
Volume 28, Issue 31, Pages 6734-+

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201600969

Keywords

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Funding

  1. National Science Foundation [DMR-1505535, DMR-1420645]
  2. Department of Energy [DE-EE0006709]
  3. Office of Naval Research [N00014-15-1-2713]
  4. Division Of Materials Research
  5. Direct For Mathematical & Physical Scien [1505535] Funding Source: National Science Foundation

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Tunneling contacts made of any insulating polymers, a champion technology in silicon solar cells, are shown to increase the stabilized efficiency of perovskite solar cells (PSCs) to 20.3%. The tunneling layers spatially separate photo-generated electrons and holes at the perovskite-cathode interface and reduce charge recombination. The tunneling layers made of hydrophobic polymers also significantly enhance the resistance of PSCs to water-caused damage.

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