Efficient near-infrared polymer nanocrystal light-emitting diodes

Nir Tessler; Vlad Medvedev; Miri Kazes; Shi Hai Kan; Uri Banin

doi:10.1126/science.1068153

Efficient near-infrared polymer nanocrystal light-emitting diodes

Nir Tessler^*, Vlad Medvedev, Miri Kazes, Shi Hai Kan, Uri Banin

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1299 Scopus citations

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	https://doi.org/10.1126/science.1068153
State	Published - 22 Feb 2002
Externally published	Yes

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AU - Banin, Uri

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Efficient near-infrared polymer nanocrystal light-emitting diodes

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