TY - JOUR
T1 - Evidence of the improvement of photovoltaic efficiency by polar molecule orientation in a new semiconducting polymer
AU - Sentein, Carole
AU - Rocha, Licinio
AU - Apostoluk, Aleksandra
AU - Raimond, Paul
AU - Duyssens, Iris
AU - Van Severen, Ineke
AU - Cleij, Thomas
AU - Lutsen, Laurence
AU - Vanderzande, Dirk
AU - Kazukauskas, Vaidotas
AU - Pranaitis, Mindaugas
AU - Cyras, Valius
PY - 2007/11/23
Y1 - 2007/11/23
N2 - Storage of an internal field in a polymeric semiconductor device should be of great interest for applications like photovoltaic solar cells to facilitate exciton dissociation and improve charge transport in the structure. Orientation of polar molecules, contained inside a polymer binder, induces a rectifying effect, behaving as a distributed homojunction within a single polymeric film. To investigate this concept, a new poly(p-phenylenevinylene) (ppv) derivative bearing push–pull like molecules was purposefully designed and synthesized. Effect of polar molecules’ orientation on carrier injection and transport properties was studied. In the test systems, we demonstrate an increase of the external quantum efficiency upon orientation.
AB - Storage of an internal field in a polymeric semiconductor device should be of great interest for applications like photovoltaic solar cells to facilitate exciton dissociation and improve charge transport in the structure. Orientation of polar molecules, contained inside a polymer binder, induces a rectifying effect, behaving as a distributed homojunction within a single polymeric film. To investigate this concept, a new poly(p-phenylenevinylene) (ppv) derivative bearing push–pull like molecules was purposefully designed and synthesized. Effect of polar molecules’ orientation on carrier injection and transport properties was studied. In the test systems, we demonstrate an increase of the external quantum efficiency upon orientation.
KW - organic solar cells
KW - polymer semiconductors
KW - molecular chain orientation
KW - carrier transport
U2 - 10.1016/j.solmat.2007.06.012
DO - 10.1016/j.solmat.2007.06.012
M3 - Article
SN - 0927-0248
VL - 91
SP - 1816
EP - 1824
JO - Solar Energy Materials and Solar Cells
JF - Solar Energy Materials and Solar Cells
IS - 19
ER -