Abstract
We have found by NEXAFS spectroscopic studies that a PPV derivative (CzEh-PPV) bearing the carbazole pendants form new intragap states when contacted with calcium metal. Moreover, the polymer exhibited much more balanced mobilities of holes and electrons than PPV and MEH-PPV. Such characteristics are believed to bring about low turn-on electric field and improved efficiency for the LED device fabricated with the polymer.
| Original language | English |
|---|---|
| Pages (from-to) | 183-190 |
| Number of pages | 8 |
| Journal | Macromolecular Symposia |
| Volume | 192 |
| DOIs | |
| State | Published - Mar 2003 |