title: Plasmonics for improved photovoltaic devices.
abstract: The emerging field of plasmonics has yielded methods for guiding and localizing light at the nanoscale, well below the scale of the wavelength of light in free space. Now plasmonics researchers are turning their attention to photovoltaics, where design approaches based on plasmonics can be used to improve absorption in photovoltaic devices, permitting a considerable reduction in the physical thickness of solar photovoltaic absorber layers, and yielding new options for solar-cell design. In this review, we survey recent advances at the intersection of plasmonics and photovoltaics and offer an outlook on the future of solar cells based on these principles.
authors.affiliation: Caltech Center for Sustainable Energy Research and Thomas J. Watson Laboratories of Applied Physics, California Institute of Technology, Pasadena, California 91125, USA. haa@caltech.edu
authors.forename: Harry A
authors.initials: HA
authors.lastname: Atwater
authors.forename: Albert
authors.initials: A
authors.lastname: Polman