Abstract
We present the synthesis of an azobenzene derivative and its grafting by covalent bonding to an indium-tin oxide (ITO) anode, with the purpose of increasing hole injection in polymer organic diodes. The dipolar molecules form a monolayer and decrease the energy barrier for the injection of holes into the polymer. We observe a one to two orders of magnitude increase for the injected current at a given voltage between reference (unmodified) and grafted diodes made from poly-(9-vinylcarbazole) (PVK).
| Original language | English |
|---|---|
| Pages (from-to) | 54-57 |
| Number of pages | 4 |
| Journal | Applied Surface Science |
| Volume | 218 |
| Issue number | 1-4 |
| DOIs | |
| Publication status | Published - 30 Sept 2003 |
Keywords
- Crystalline-amorphous interfaces
- Indium oxides
- Infrared absorption spectroscopy
- Silane
- Surface chemical reaction
- Surface electronic phenomena