Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/8348
Title: | Effect of the controllable molecular ordering in a new polymer on carrier transport and photovoltaic properties | Authors: | Kazukauskas, V. Pranaitis, M. Sentein, C. Rocha, L. Raimond, P. DUYSSENS, Iris VAN SEVEREN, Ineke CLEIJ, Thomas LUTSEN, Laurence VANDERZANDE, Dirk |
Issue Date: | 2008 | Publisher: | TAYLOR & FRANCIS LTD | Source: | MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 484. p. 728-738 | Abstract: | The functionalized soluble poly(p-phenylene uinylene) derivative bearing polar molecules (NLO-PPV) was designed and synthesized to investigate effects of molecular orientation in single-layer polymer photovoltaic devices. The active molecule is the 4-(N-butyl-N-2-hydroxyethy1)-1-nitro-benzene group on the copolymer. The grafting of the molecule with a donor/transmitter/acceptor structure, possessing a large ground state dipole moment, enables their orientation by a DC-electric field. An internal electric field in such layer facilitates exciton dissociation and improves charge transport. We report increase of the external quantum efficiency by a factor of 1.5 to 2 upon orientation. The associated effects on the carrier injection and transport depending on the orientation direction were evidenced. | Notes: | Vilnius State Univ, Dept Semicond Phys, LT-10222 Vilnius, Lithuania. Vilnius State Univ, Inst Mat Sci & Appl Res, LT-10222 Vilnius, Lithuania. IMEC, IMOMEC, Diepenbeek, Belgium. Hasselt Univ, Diepenbeek, Belgium. | Keywords: | energy conversion efficiency; molecular orientation; optical and electrical properties; polymers | Document URI: | http://hdl.handle.net/1942/8348 | ISSN: | 1542-1406 | e-ISSN: | 1563-5287 | ISI #: | 000256185800032 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2009 |
Appears in Collections: | Research publications |
Show full item record
Google ScholarTM
Check
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.