Abstract
The fabrication of trilayer hybrid polymer-quantum-dot light-emitting diode by sandwitching monolayers (ML) of CdSe-ZnS core-shell nanocrystals between a hole-conducting polymer polyvinylcarbazole (PVK) and electron-conducting oxadiazole derivative butyl-PBD was discussed. Spin-coating technique was used for the deposition of different layers. The reduction in tunneling barrier of carriers, without affecting the optical properties of absorbance and emission of quantum dots (QD) was observed. The device showed 20 times the quantum efficiency (0.2%) and less than half the threshold voltage (5 V) of a single-layer device which was made from the PVK-QD-PBD blend.
| Original language | English |
|---|---|
| Pages (from-to) | 2925-2927 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 84 |
| Issue number | 15 |
| DOIs | |
| Publication status | Published - Apr 12 2004 |
| Externally published | Yes |
ASJC Scopus Subject Areas
- Physics and Astronomy (miscellaneous)