Abstract
Conjugated polymers and indium arsenide-based nanocrystals were used to create near-infrared plastic light-emitting diodes. Emission was tunable from 1 to 1.3 micrometers - a range that effectively covers the short-wavelength telecommunications band - by means of the quantum confinement effects in the nanocrystals. The external efficiency value (photons out divided by electrons in) is ∼0.5% (that is, >1% internal) and is mainly limited by device architecture. The near-infrared emission did not overlap the charge-induced absorption bands of the polymer.
| Original language | English |
|---|---|
| Pages (from-to) | 1506-1508 |
| Number of pages | 3 |
| Journal | Science |
| Volume | 295 |
| Issue number | 5559 |
| DOIs | |
| State | Published - 22 Feb 2002 |
| Externally published | Yes |