Dynamics of exciton diffusion in poly(p-phenylene vinylene)/fullerene heterostructures

D.E. Markov; J.C. Hummelen; P.W.M. Blom; A.B. Sieval

doi:10.1103/PhysRevB.72.045216

Dynamics of exciton diffusion in poly(p-phenylene vinylene)/fullerene heterostructures

D.E. Markov, J.C. Hummelen, P.W.M. Blom, A.B. Sieval

Zernike Institute for Advanced Materials

Research output: Contribution to journal › Article › Academic › peer-review

92 Citations (Scopus)

450 Downloads (Pure)

Abstract

The exciton diffusion process in a poly(p-phenylene vinylene)- (PPV-)based derivative is investigated using time-resolved photoluminescence in conjugated polymer/fullerene heterostructures. The decay of the luminescence in the polymer/fullerene heterostructures is governed by exciton diffusion and subsequent dissociation at the polymer/fullerene interface. The decay curves of polymer layers with varying thickness are consistently modeled using an exciton diffusion constant of 3x10(-4) cm(2)/s. The resulting exciton migration radius amounts to 6 nm, which is a measure for the active part of the PPV/fullerene heterojunction for photovoltaic applications.

Original language	English
Article number	045216
Pages (from-to)	art. - 045216
Number of pages	5
Journal	Physical Review. B: Condensed Matter and Materials Physics
Volume	72
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.72.045216
Publication status	Published - Jul-2005

Keywords

MEH-PPV FILMS
CONJUGATED POLYMERS
INTERCHAIN INTERACTIONS
ENERGY-TRANSFER
PHOTOLUMINESCENCE
DISSOCIATION
HETEROJUNCTION
PHOTOPHYSICS
AGGREGATION
EXCITATIONS

Access to Document

10.1103/PhysRevB.72.045216

2005PhysRevBMarkov1.pdfFinal publisher's version, 168 KB

http://www.scopus.com/inward/record.url?eid=2-s2.0-33749233649&partnerID=40&md5=0a890efc5b731e534b731c64a8515945

Handle.net

Persistent link

Cite this

@article{d530902fbb2143c8962688d35b399df5,

title = "Dynamics of exciton diffusion in poly(p-phenylene vinylene)/fullerene heterostructures",

abstract = "The exciton diffusion process in a poly(p-phenylene vinylene)- (PPV-)based derivative is investigated using time-resolved photoluminescence in conjugated polymer/fullerene heterostructures. The decay of the luminescence in the polymer/fullerene heterostructures is governed by exciton diffusion and subsequent dissociation at the polymer/fullerene interface. The decay curves of polymer layers with varying thickness are consistently modeled using an exciton diffusion constant of 3x10(-4) cm(2)/s. The resulting exciton migration radius amounts to 6 nm, which is a measure for the active part of the PPV/fullerene heterojunction for photovoltaic applications.",

keywords = "MEH-PPV FILMS, CONJUGATED POLYMERS, INTERCHAIN INTERACTIONS, ENERGY-TRANSFER, PHOTOLUMINESCENCE, DISSOCIATION, HETEROJUNCTION, PHOTOPHYSICS, AGGREGATION, EXCITATIONS",

author = "D.E. Markov and J.C. Hummelen and P.W.M. Blom and A.B. Sieval",

note = "Relation: http://www.rug.nl/natuurkunde/ date_submitted:2005 Rights: University of Groningen. Materials Science Centre",

year = "2005",

month = jul,

doi = "10.1103/PhysRevB.72.045216",

language = "English",

volume = "72",

pages = "art. -- 045216",

journal = "Physical Review. B: Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "AMER PHYSICAL SOC",

number = "4",

}

TY - JOUR

T1 - Dynamics of exciton diffusion in poly(p-phenylene vinylene)/fullerene heterostructures

AU - Markov, D.E.

AU - Hummelen, J.C.

AU - Blom, P.W.M.

AU - Sieval, A.B.

N1 - Relation: http://www.rug.nl/natuurkunde/ date_submitted:2005 Rights: University of Groningen. Materials Science Centre

PY - 2005/7

Y1 - 2005/7

N2 - The exciton diffusion process in a poly(p-phenylene vinylene)- (PPV-)based derivative is investigated using time-resolved photoluminescence in conjugated polymer/fullerene heterostructures. The decay of the luminescence in the polymer/fullerene heterostructures is governed by exciton diffusion and subsequent dissociation at the polymer/fullerene interface. The decay curves of polymer layers with varying thickness are consistently modeled using an exciton diffusion constant of 3x10(-4) cm(2)/s. The resulting exciton migration radius amounts to 6 nm, which is a measure for the active part of the PPV/fullerene heterojunction for photovoltaic applications.

AB - The exciton diffusion process in a poly(p-phenylene vinylene)- (PPV-)based derivative is investigated using time-resolved photoluminescence in conjugated polymer/fullerene heterostructures. The decay of the luminescence in the polymer/fullerene heterostructures is governed by exciton diffusion and subsequent dissociation at the polymer/fullerene interface. The decay curves of polymer layers with varying thickness are consistently modeled using an exciton diffusion constant of 3x10(-4) cm(2)/s. The resulting exciton migration radius amounts to 6 nm, which is a measure for the active part of the PPV/fullerene heterojunction for photovoltaic applications.

KW - MEH-PPV FILMS

KW - CONJUGATED POLYMERS

KW - INTERCHAIN INTERACTIONS

KW - ENERGY-TRANSFER

KW - PHOTOLUMINESCENCE

KW - DISSOCIATION

KW - HETEROJUNCTION

KW - PHOTOPHYSICS

KW - AGGREGATION

KW - EXCITATIONS

U2 - 10.1103/PhysRevB.72.045216

DO - 10.1103/PhysRevB.72.045216

M3 - Article

SN - 1098-0121

VL - 72

SP - art. - 045216

JO - Physical Review. B: Condensed Matter and Materials Physics

JF - Physical Review. B: Condensed Matter and Materials Physics

IS - 4

M1 - 045216

ER -

Dynamics of exciton diffusion in poly(p-phenylene vinylene)/fullerene heterostructures

Abstract

Keywords

Access to Document

Handle.net

Fingerprint

Cite this