Materials interface engineering for solution-processed photovoltaics.


Journal Article

Advances in solar photovoltaics are urgently needed to increase the performance and reduce the cost of harvesting solar power. Solution-processed photovoltaics are cost-effective to manufacture and offer the potential for physical flexibility. Rapid progress in their development has increased their solar-power conversion efficiencies. The nanometre (electron) and micrometre (photon) scale interfaces between the crystalline domains that make up solution-processed solar cells are crucial for efficient charge transport. These interfaces include large surface area junctions between photoelectron donors and acceptors, the intralayer grain boundaries within the absorber, and the interfaces between photoactive layers and the top and bottom contacts. Controlling the collection and minimizing the trapping of charge carriers at these boundaries is crucial to efficiency.

Full Text

Duke Authors

Cited Authors

  • Graetzel, M; Janssen, RAJ; Mitzi, DB; Sargent, EH

Published Date

  • August 2012

Published In

Volume / Issue

  • 488 / 7411

Start / End Page

  • 304 - 312

PubMed ID

  • 22895335

Pubmed Central ID

  • 22895335

Electronic International Standard Serial Number (EISSN)

  • 1476-4687

International Standard Serial Number (ISSN)

  • 0028-0836

Digital Object Identifier (DOI)

  • 10.1038/nature11476


  • eng