We have fabricated and characterized hole-only and double-layer-type devices based on a single-walled carbon nanotube (SWCNT)-polyvinylcarbazole (PVK) composite. Studies of luminescence and device characteristics demonstrate that as the fraction of SWCNTs in the PVK medium increases in the range of 0-1.0wt.%, the hole mobility and device performance are significantly improved due to the efficient hole injection and transport through highly conductive nanotubes. The dye-doped composite devices reveal a complete energy transfer and higher external quantum efficiencies.
|Number of pages
|Published - 2003 Oct 9
|Proceedings of the Fifth International Topical Conference - Venice, Italy
Duration: 2003 Feb 9 → 2003 Feb 14
Bibliographical noteFunding Information:
Authors wish to acknowledge the support of BK21 fellowships, KBSI, MOE, and the facility of CRM at Korea University. This work was supported by Grant no. R01-1999-00230 from the Basic Research Program of the KOSEF.
- External quantum efficiency
- Single-walled carbon nanotubes
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry