title: Nanostructured singlet fission photovoltaics subject to triplet-charge annihilation.
abstract: Singlet exciton fission is an efficient multiple-exciton generation process that is vulnerable to a characteristic loss process: triplet-charge annihilation. This loss process is characterized in singlet-fission photovoltaics and losses as high as 40% are observed in poorly designed devices. Techniques are demonstrated to improve charge extraction and reduce triplet-charge annihilation to negligible levels at short-circuit conditions.
authors.affiliation: Energy Frontier Research Center for Excitonics, 77 Massachusetts Ave, Cambridge, MA, 02139, USA.
authors.forename: Nicholas J
authors.initials: NJ
authors.lastname: Thompson
authors.forename: Eric
authors.initials: E
authors.lastname: Hontz
authors.forename: Daniel N
authors.initials: DN
authors.lastname: Congreve
authors.forename: Matthias E
authors.initials: ME
authors.lastname: Bahlke
authors.forename: Sebastian
authors.initials: S
authors.lastname: Reineke
authors.forename: Troy
authors.initials: T
authors.lastname: Van Voorhis
authors.forename: Marc A
authors.initials: MA
authors.lastname: Baldo
keywords: charge; pentacene; photovoltaic; singlet exciton fission; triplet