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 |
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Pages (from-to) | 183-190 |
Number of pages | 8 |
Journal | Macromolecular Symposia |
Volume | 192 |
DOIs | |
State | Published - Mar 2003 |