Ultrafast electric field-assisted pump-probe spectroscopy in poly(9,9-dioctylfluorene) light-emitting diodes

T. Virgili; G. Cerullo; C. Gadermaier; L. Lüer; G. Lanzani; D. D.C. Bradley

doi:10.1016/S0379-6779(03)00253-4

Ultrafast electric field-assisted pump-probe spectroscopy in poly(9,9-dioctylfluorene) light-emitting diodes

T. Virgili, G. Cerullo, C. Gadermaier, L. Lüer, G. Lanzani, D. D.C. Bradley

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

Here we report a detailed study of organic light-emitting diodes based on poly(9,9-dioctylfluorene) (PFO), to investigate polaron generation, due to field induced singlet dissociation, and their subsequent recombination. We find that initially free polarons coalesce into intermediate pairs of both singlets and triplets multiplicity which subsequently decay into the neutral state. There is indication that the efficiency of singlet formation (β = 0.7) is much higher than expected from simple state degeneracy arguments (β = 0.25). © 2003 Elsevier B.V. All rights reserved.

Original language	English (US)
Title of host publication	Synthetic Metals
DOIs	https://doi.org/10.1016/S0379-6779(03)00253-4
State	Published - Oct 9 2003
Externally published	Yes

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title = "Ultrafast electric field-assisted pump-probe spectroscopy in poly(9,9-dioctylfluorene) light-emitting diodes",

abstract = "Here we report a detailed study of organic light-emitting diodes based on poly(9,9-dioctylfluorene) (PFO), to investigate polaron generation, due to field induced singlet dissociation, and their subsequent recombination. We find that initially free polarons coalesce into intermediate pairs of both singlets and triplets multiplicity which subsequently decay into the neutral state. There is indication that the efficiency of singlet formation (β = 0.7) is much higher than expected from simple state degeneracy arguments (β = 0.25). {\textcopyright} 2003 Elsevier B.V. All rights reserved.",

author = "T. Virgili and G. Cerullo and C. Gadermaier and L. L{\"u}er and G. Lanzani and Bradley, {D. D.C.}",

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T1 - Ultrafast electric field-assisted pump-probe spectroscopy in poly(9,9-dioctylfluorene) light-emitting diodes

AU - Virgili, T.

AU - Cerullo, G.

AU - Gadermaier, C.

AU - Lüer, L.

AU - Lanzani, G.

AU - Bradley, D. D.C.

N1 - Generated from Scopus record by KAUST IRTS on 2019-11-27

PY - 2003/10/9

Y1 - 2003/10/9

N2 - Here we report a detailed study of organic light-emitting diodes based on poly(9,9-dioctylfluorene) (PFO), to investigate polaron generation, due to field induced singlet dissociation, and their subsequent recombination. We find that initially free polarons coalesce into intermediate pairs of both singlets and triplets multiplicity which subsequently decay into the neutral state. There is indication that the efficiency of singlet formation (β = 0.7) is much higher than expected from simple state degeneracy arguments (β = 0.25). © 2003 Elsevier B.V. All rights reserved.

AB - Here we report a detailed study of organic light-emitting diodes based on poly(9,9-dioctylfluorene) (PFO), to investigate polaron generation, due to field induced singlet dissociation, and their subsequent recombination. We find that initially free polarons coalesce into intermediate pairs of both singlets and triplets multiplicity which subsequently decay into the neutral state. There is indication that the efficiency of singlet formation (β = 0.7) is much higher than expected from simple state degeneracy arguments (β = 0.25). © 2003 Elsevier B.V. All rights reserved.

UR - https://linkinghub.elsevier.com/retrieve/pii/S0379677903002534

UR - http://www.scopus.com/inward/record.url?scp=0042830547&partnerID=8YFLogxK

U2 - 10.1016/S0379-6779(03)00253-4

DO - 10.1016/S0379-6779(03)00253-4

M3 - Conference contribution

BT - Synthetic Metals

ER -

Ultrafast electric field-assisted pump-probe spectroscopy in poly(9,9-dioctylfluorene) light-emitting diodes

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