Dynamics of Förster transfer in polyfluorene-based polymer blends and Langmuir-Blodgett nanostructures

J. Hill; S. Y. Heriot; O. Worsfold; T. H. Richardson; A. M. Fox; D. D.C. Bradley

doi:10.1016/S0379-6779(03)00283-2

Dynamics of Förster transfer in polyfluorene-based polymer blends and Langmuir-Blodgett nanostructures

J. Hill, S. Y. Heriot, O. Worsfold, T. H. Richardson, A. M. Fox, D. D.C. Bradley

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

28 Scopus citations

Abstract

We have studied the Förster transfer dynamics in spin-cast polyfluorene blends and Langmuir-Blodgett (LB) nanostructures by time-resolved photoluminescence (PL) spectroscopy. The blend system consisted of poly(9,9-dioctylfluorene) (F8) as the host and poly(9,9-dioctylfluorene-co-benzothiadiazole) (F8BT) as the guest. In the spin-cast films we find evidence for phase separation at high F8BT concentrations. In the LB nanostructures, the host-guest separation is precisely controlled by optically-inert monolayer spacers of stearic acid. This permits a quantitative analysis of the Förster transfer dynamics, from which we deduce a value of 38±7Å for the Förster radius of the F8-F8BT system, in agreement with the predictions based on spectral overlap calculations. © 2003 Elsevier Science B.V. All rights reserved.

Original language	English (US)
Title of host publication	Synthetic Metals
DOIs	https://doi.org/10.1016/S0379-6779(03)00283-2
State	Published - Oct 9 2003
Externally published	Yes

Access to Document

10.1016/S0379-6779(03)00283-2

Cite this

@inproceedings{b95cd2b46e954636ba08d8101a8b6646,

title = "Dynamics of F{\"o}rster transfer in polyfluorene-based polymer blends and Langmuir-Blodgett nanostructures",

abstract = "We have studied the F{\"o}rster transfer dynamics in spin-cast polyfluorene blends and Langmuir-Blodgett (LB) nanostructures by time-resolved photoluminescence (PL) spectroscopy. The blend system consisted of poly(9,9-dioctylfluorene) (F8) as the host and poly(9,9-dioctylfluorene-co-benzothiadiazole) (F8BT) as the guest. In the spin-cast films we find evidence for phase separation at high F8BT concentrations. In the LB nanostructures, the host-guest separation is precisely controlled by optically-inert monolayer spacers of stearic acid. This permits a quantitative analysis of the F{\"o}rster transfer dynamics, from which we deduce a value of 38±7{\AA} for the F{\"o}rster radius of the F8-F8BT system, in agreement with the predictions based on spectral overlap calculations. {\textcopyright} 2003 Elsevier Science B.V. All rights reserved.",

author = "J. Hill and Heriot, {S. Y.} and O. Worsfold and Richardson, {T. H.} and Fox, {A. M.} and Bradley, {D. D.C.}",

note = "Generated from Scopus record by KAUST IRTS on 2019-11-27",

year = "2003",

month = oct,

day = "9",

doi = "10.1016/S0379-6779(03)00283-2",

language = "English (US)",

booktitle = "Synthetic Metals",

}

TY - GEN

T1 - Dynamics of Förster transfer in polyfluorene-based polymer blends and Langmuir-Blodgett nanostructures

AU - Hill, J.

AU - Heriot, S. Y.

AU - Worsfold, O.

AU - Richardson, T. H.

AU - Fox, A. M.

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 - We have studied the Förster transfer dynamics in spin-cast polyfluorene blends and Langmuir-Blodgett (LB) nanostructures by time-resolved photoluminescence (PL) spectroscopy. The blend system consisted of poly(9,9-dioctylfluorene) (F8) as the host and poly(9,9-dioctylfluorene-co-benzothiadiazole) (F8BT) as the guest. In the spin-cast films we find evidence for phase separation at high F8BT concentrations. In the LB nanostructures, the host-guest separation is precisely controlled by optically-inert monolayer spacers of stearic acid. This permits a quantitative analysis of the Förster transfer dynamics, from which we deduce a value of 38±7Å for the Förster radius of the F8-F8BT system, in agreement with the predictions based on spectral overlap calculations. © 2003 Elsevier Science B.V. All rights reserved.

AB - We have studied the Förster transfer dynamics in spin-cast polyfluorene blends and Langmuir-Blodgett (LB) nanostructures by time-resolved photoluminescence (PL) spectroscopy. The blend system consisted of poly(9,9-dioctylfluorene) (F8) as the host and poly(9,9-dioctylfluorene-co-benzothiadiazole) (F8BT) as the guest. In the spin-cast films we find evidence for phase separation at high F8BT concentrations. In the LB nanostructures, the host-guest separation is precisely controlled by optically-inert monolayer spacers of stearic acid. This permits a quantitative analysis of the Förster transfer dynamics, from which we deduce a value of 38±7Å for the Förster radius of the F8-F8BT system, in agreement with the predictions based on spectral overlap calculations. © 2003 Elsevier Science B.V. All rights reserved.

UR - https://linkinghub.elsevier.com/retrieve/pii/S0379677903002832

UR - http://www.scopus.com/inward/record.url?scp=0042329244&partnerID=8YFLogxK

U2 - 10.1016/S0379-6779(03)00283-2

DO - 10.1016/S0379-6779(03)00283-2

M3 - Conference contribution

BT - Synthetic Metals

ER -

Dynamics of Förster transfer in polyfluorene-based polymer blends and Langmuir-Blodgett nanostructures

Abstract

Access to Document

Other files and links

Fingerprint

Cite this