Energy transfer and excitation migration in a doped organic semiconductor

Paul A. Lane; Mason A. Wolak; Joseph S. Melinger; Rachel Williamson; Leonidas C. Palilis; Jared Delcamp; John E. Anthony; Zakya H. Kafafi

doi:10.1117/12.624411

Energy transfer and excitation migration in a doped organic semiconductor

Paul A. Lane, Mason A. Wolak, Joseph S. Melinger, Rachel Williamson, Leonidas C. Palilis, Jared Delcamp, John E. Anthony, Zakya H. Kafafi

Chemistry

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

We have studied energy transfer to a dioxolane-substituted pentacene derivative, 6, 14-bis-(triisopropylsilylethynyl)-1,3,9,11-tetraoxa- dicyclopenta[b,m]pentacene (TP-5), from tris(8-hydroxyquin-8-olinato) aluminum(III) (Alq ₃) by steady state and time-resolved photoluminescence (PL) spectroscopy. The Förster transfer radius is 27 Å, calculated from the fluorescence spectrum of Alq ₃ and the absorption spectrum of TP-5. We find that pentacene emission dominates the PL spectra of TP-5:Alq ₃ guest-host films, even at concentrations where the typical guest separation is significantly larger than the Förster transfer radius. Monte Carlo simulations of energy transfer to randomly dispersed guest molecules in the host matrix show that Förster-type energy transfer cannot completely account for the PL dynamics of the guest and host. Exciton diffusion within the Alq ₃ host followed by fluorescence of the host molecules or energy transfer to the guest explains the PL spectra and dynamics.

Original language	English
Article number	593709
Pages (from-to)	1-10
Number of pages	10
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5937
DOIs	https://doi.org/10.1117/12.624411
State	Published - 2005
Event	Organic Light-Emitting Materials and Devices IX - San Diego, CA, United States Duration: Jul 31 2005 → Aug 3 2005

Keywords

Energy transfer
Exciton migration
Fluorescence
Fo̊rster theory
Pentacene
Photoluminescence

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.624411

Cite this

@article{17e932078cb6465d8e2247028dfd5921,

title = "Energy transfer and excitation migration in a doped organic semiconductor",

abstract = "We have studied energy transfer to a dioxolane-substituted pentacene derivative, 6, 14-bis-(triisopropylsilylethynyl)-1,3,9,11-tetraoxa- dicyclopenta[b,m]pentacene (TP-5), from tris(8-hydroxyquin-8-olinato) aluminum(III) (Alq 3) by steady state and time-resolved photoluminescence (PL) spectroscopy. The F{\"o}rster transfer radius is 27 {\AA}, calculated from the fluorescence spectrum of Alq 3 and the absorption spectrum of TP-5. We find that pentacene emission dominates the PL spectra of TP-5:Alq 3 guest-host films, even at concentrations where the typical guest separation is significantly larger than the F{\"o}rster transfer radius. Monte Carlo simulations of energy transfer to randomly dispersed guest molecules in the host matrix show that F{\"o}rster-type energy transfer cannot completely account for the PL dynamics of the guest and host. Exciton diffusion within the Alq 3 host followed by fluorescence of the host molecules or energy transfer to the guest explains the PL spectra and dynamics.",

keywords = "Energy transfer, Exciton migration, Fluorescence, Fo̊rster theory, Pentacene, Photoluminescence",

author = "Lane, {Paul A.} and Wolak, {Mason A.} and Melinger, {Joseph S.} and Rachel Williamson and Palilis, {Leonidas C.} and Jared Delcamp and Anthony, {John E.} and Kafafi, {Zakya H.}",

year = "2005",

doi = "10.1117/12.624411",

language = "English",

volume = "5937",

pages = "1--10",

note = "Organic Light-Emitting Materials and Devices IX ; Conference date: 31-07-2005 Through 03-08-2005",

}

TY - JOUR

T1 - Energy transfer and excitation migration in a doped organic semiconductor

AU - Lane, Paul A.

AU - Wolak, Mason A.

AU - Melinger, Joseph S.

AU - Williamson, Rachel

AU - Palilis, Leonidas C.

AU - Delcamp, Jared

AU - Anthony, John E.

AU - Kafafi, Zakya H.

PY - 2005

Y1 - 2005

N2 - We have studied energy transfer to a dioxolane-substituted pentacene derivative, 6, 14-bis-(triisopropylsilylethynyl)-1,3,9,11-tetraoxa- dicyclopenta[b,m]pentacene (TP-5), from tris(8-hydroxyquin-8-olinato) aluminum(III) (Alq 3) by steady state and time-resolved photoluminescence (PL) spectroscopy. The Förster transfer radius is 27 Å, calculated from the fluorescence spectrum of Alq 3 and the absorption spectrum of TP-5. We find that pentacene emission dominates the PL spectra of TP-5:Alq 3 guest-host films, even at concentrations where the typical guest separation is significantly larger than the Förster transfer radius. Monte Carlo simulations of energy transfer to randomly dispersed guest molecules in the host matrix show that Förster-type energy transfer cannot completely account for the PL dynamics of the guest and host. Exciton diffusion within the Alq 3 host followed by fluorescence of the host molecules or energy transfer to the guest explains the PL spectra and dynamics.

AB - We have studied energy transfer to a dioxolane-substituted pentacene derivative, 6, 14-bis-(triisopropylsilylethynyl)-1,3,9,11-tetraoxa- dicyclopenta[b,m]pentacene (TP-5), from tris(8-hydroxyquin-8-olinato) aluminum(III) (Alq 3) by steady state and time-resolved photoluminescence (PL) spectroscopy. The Förster transfer radius is 27 Å, calculated from the fluorescence spectrum of Alq 3 and the absorption spectrum of TP-5. We find that pentacene emission dominates the PL spectra of TP-5:Alq 3 guest-host films, even at concentrations where the typical guest separation is significantly larger than the Förster transfer radius. Monte Carlo simulations of energy transfer to randomly dispersed guest molecules in the host matrix show that Förster-type energy transfer cannot completely account for the PL dynamics of the guest and host. Exciton diffusion within the Alq 3 host followed by fluorescence of the host molecules or energy transfer to the guest explains the PL spectra and dynamics.

KW - Energy transfer

KW - Exciton migration

KW - Fluorescence

KW - Fo̊rster theory

KW - Pentacene

KW - Photoluminescence

UR - http://www.scopus.com/inward/record.url?scp=31744451548&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=31744451548&partnerID=8YFLogxK

U2 - 10.1117/12.624411

DO - 10.1117/12.624411

M3 - Conference article

AN - SCOPUS:31744451548

SN - 0277-786X

VL - 5937

SP - 1

EP - 10

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

M1 - 593709

T2 - Organic Light-Emitting Materials and Devices IX

Y2 - 31 July 2005 through 3 August 2005

ER -

Energy transfer and excitation migration in a doped organic semiconductor

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this