Consistent formulation of the crossover from density to velocity dependent recombination in organic solar cells
comunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/2507
comunitat-uji-handle3:10234/6973
comunitat-uji-handle4:
INVESTIGACIONMetadatos
Título
Consistent formulation of the crossover from density to velocity dependent recombination in organic solar cellsFecha de publicación
2015Editor
AIP PublishingCita bibliográfica
ANSARI-RAD, Mehdi; GARCÍA BELMONTE, Germà; BISQUERT, Juan. Consistent formulation of the crossover from density to velocity dependent recombination in organic solar cells. Applied Physics Letters (2015), v. 107, n. 7, pp. 07301-1 - 07301-4Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://scitation.aip.org/content/aip/journal/apl/107/7/10.1063/1.4928758Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Carrier recombination is a central process in bulk heterojunction organic solar cells. Based on the competition of hopping rates that either implies escape in a broad density of states or recombination across the ... [+]
Carrier recombination is a central process in bulk heterojunction organic solar cells. Based on the competition of hopping rates that either implies escape in a broad density of states or recombination across the interface, we formulate a general theory of recombination flux that distinguishes reaction or transport limited recombination according to charge density. The Langevin picture is valid only in the low charge density limit, and a crossover to the reaction controlled regime occurs at higher densities. We present results from impedance spectroscopy of poly(3-hexylthiophene):methanofullerene solar cell that exhibit this crossover [-]
Publicado en
Applied Physics Letters (2015), v. 107, n. 7Derechos de acceso
http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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