Abstract
The injection-limited hole current from Ag into poly-dialkoxy-p-phenylene vinylene (PPV) exhibits a weak dependence on temperature, in spite of the presence of a large injection barrier of 1 eV. The measured field- and temperature dependence of the hole injection is explained by a hopping model in which energetic disorder is taken into account. In a PPV-based light-emitting diode it is demonstrated that the hole injection is enhanced by the presence of electrons. As a mechanism for this enhanced hole injection an increase of the electric field at the hole injecting contact due to trapped electrons is proposed.
Original language | English |
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Title of host publication | Advances in Solid State Physics |
Publisher | Springer |
Pages | 495-503 |
Number of pages | 9 |
Volume | 42 |
DOIs | |
Publication status | Published - 2002 |
Event | Spring Meeting of the Deutsche-Physikalische-Gesellschaft - , Germany Duration: 25-Mar-2002 → 29-Mar-2002 |
Other
Other | Spring Meeting of the Deutsche-Physikalische-Gesellschaft |
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Country | Germany |
Period | 25/03/2002 → 29/03/2002 |
Keywords
- MONTE-CARLO SIMULATION
- POLY(P-PHENYLENE VINYLENE)
- HOLE TRANSPORT
- DEPENDENCE
- ELECTRON