Search results

Sort By:

Limit search:

Effect of Molecular Orientation on Photovoltaic Efficiency and Carrier Transport in a New Semiconducting Polymer

100%

Kažukauskas V., Pranaitis M., Sentein C., Rocha L., Raimond P., Duyssens I., Van Severen I., Lutsen L., Cleij T., Vanderzande D.

Acta Physica Polonica A

2008

vol. 113

issue 3

1009-1012

New functionalized soluble poly(p-phenylene vinylene) derivative bearing polar molecules was designed and synthesized in order to investigate effects of molecular orientation in polymer photovoltaic devices. The active polar molecule is the 4-(N-butyl-N-2-hydroxyethyl)-1- nitro-benzene group. The grafting of the push-pull molecule with a donor/transmitter/acceptor structure, possessing a large ground state dipole moment, enables the molecular orientation by a dc electric field. An internal electric field stored in such system facilitates exciton dissociation and improves charge transport in single-layer devices. In our systems an increase in the external quantum efficiency by a factor of about 1.5 to 2 is estimated. The associated effects of orientation on the carrier injection and transport properties were evidenced.

Refine search results

1 Acta Physica Polonica A

1 2008

1 Cleij T.

1 Duyssens I.

1 Kažukauskas V.

1 Lutsen L.

1 Pranaitis M.

1 Raimond P.

1 Rocha L.

1 Sentein C.

1 Van Severen I.

1 Vanderzande D.

Search results

Effect of Molecular Orientation on Photovoltaic Efficiency and Carrier Transport in a New Semiconducting Polymer