Efficient Near-Infrared Polymer Nanocrystal Light-Emitting Diodes-Reference-Cited by-同舟云学术

Efficient Near-Infrared Polymer Nanocrystal Light-Emitting Diodes

Published:2002-02-22 Issue:5559 Volume:295 Page:1506-1508
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Tessler Nir¹,Medvedev Vlad¹,Kazes Miri²,Kan ShiHai²,Banin Uri²

Affiliation:

1. Electrical Engineering Department, Microelectronic Center, and Communications and Information Technologies Center, Technion–Israel Institute of Technology, Haifa 32000, Israel.

2. Institute of Chemistry and the Center for Nanoscience and Nanotechnology, Hebrew University, Jerusalem 91904, Israel.

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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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