Exciplex dynamics in a conjugated polymer blend of MDMO-PPV and PCNEPV

T. Offermans, P.A. Hal, van, M.M. Koetse, S.C.J. Meskers, R.A.J. Janssen

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review


The photophysical properties of a solution processed blend of two semiconducting polymers with electron donating and electron accepting properties, respectively, as used in polymer photovoltaic devices have been investigated. In the binary mixture of poly[2-methoxy-5-(3,7-dimethyloctyloxy)-1,4-phenylenevinylene] (MDMO-PPV) and poly[oxa-1,4-phenylene-(1-cyano-1,2-vinylene)-(2-methoxy-5-(3,7-dimethyloctyloxy)-1,4-phenylene)-1,2-(2-cyanovinylene)-1,4-phenylene] (PCNEPV) photoexcitation of either one of the polymers results in formation of a luminescent exciplex at the interface of the two materials. The high energy of this correlated charge-separated state is consistent with the high open-circuit voltage of the corresponding solar cells (1.36 eV). Application of an electric field results in dissociation of the marginally stable exciplex into charge carriers, which provides the basis for the photovoltaic effect of this combination of materials.
Originele taal-2Engels
TitelOrganic photovoltaics VI : 2 - 4 August, San Diego, California, USA
RedacteurenZ.H. Kafafi
Plaats van productieBellingham
ISBN van geprinte versie0-8194-5943-7
StatusGepubliceerd - 2005
Evenementconference; Conference ; (San Diego, Calif.) : 2005.08.02-04; 2005-08-02; 2005-08-04 -
Duur: 2 aug 20054 aug 2005

Publicatie series

NaamProceedings of SPIE
ISSN van geprinte versie0277-786X


Congresconference; Conference ; (San Diego, Calif.) : 2005.08.02-04; 2005-08-02; 2005-08-04
AnderConference ; (San Diego, Calif.) : 2005.08.02-04

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