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Triplet Exciton Dissociation in Singlet Exciton Fission Photovoltaics
Author(s) -
Jadhav Priya J.,
Brown Patrick R.,
Thompson Nicholas,
Wunsch Benjamin,
Mohanty Aseema,
Yost Shane R.,
Hontz Eric,
Van Voorhis Troy,
Bawendi Moungi G.,
Bulović Vladimir,
Baldo Marc A.
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201202397
Subject(s) - exciton , materials science , singlet fission , photocurrent , perylene , spectroscopy , dissociation (chemistry) , biexciton , photochemistry , singlet state , fullerene , chemical physics , optoelectronics , photoluminescence , fluorescence , chemistry , atomic physics , condensed matter physics , optics , physics , quantum mechanics , organic chemistry , excited state
Triplet exciton dissociation in singlet exciton fission devices with three classes of acceptors are characterized: fullerenes, perylene diimides, and PbS and PbSe colloidal nanocrystals. Using photocurrent spectroscopy and a magnetic field probe it is found that colloidal PbSe nanocrystals are the most promising acceptors, capable of efficient triplet exciton dissociation and long wavelength absorption.