Abstract
The effect of indium tin oxide (ITO) surface treatment on hole injection in organic light-emitting diode with C60 as a buffer layer on ITO was studied. Double surface dipole layer was induced on oxygen plasma treated ITO surface, while no dipole formation was observed on ITO without surface treatment. Interfacial energy barrier between ITO and hole transport layer was reduced by 0.4 eV by C60 modification on oxygen plasma treated ITO surface, while there was no change of interfacial energy barrier by C60 on ITO without surface treatment.
| Original language | English |
|---|---|
| Article number | 253501 |
| Journal | Applied Physics Letters |
| Volume | 89 |
| Issue number | 25 |
| DOIs | |
| State | Published - 2006 |
| Externally published | Yes |