The University of Southampton
University of Southampton Institutional Repository

Prospects for obtaining an efficient organolanthanide-based infra-red light emitting diode

Prospects for obtaining an efficient organolanthanide-based infra-red light emitting diode
Prospects for obtaining an efficient organolanthanide-based infra-red light emitting diode
The rapid development of polymer and molecular-based light emitting diodes has resulted in a new generation of low cost displays currently entering the market place. The use of organolanthanide molecules as emitting centres in these devices was first suggested as a means of improving the colour purity of the emission utilising the sharp 4f-4f transitions of the lanthanide ion. The energy transfer process involved in exciting the lanthanide ion however also increased the theoretical quantum efficiency from 25%, typical for a conventional device, to 100% due to the large spin-orbit coupling induced by the heavy ion. Despite this advantage the highest reported efficiency to date is 1.4%. More recently infra-red emitting organolanthanide based diodes have been demonstrated though again reported efficiencies are low. In this paper the prospects of producing an efficient organolanthanide-based light emitting diode are discussed with an emphasis on those emitting in the infra-red.
Curry, R.J.
a426dc90-9f99-47ef-93a5-21787c20e0a0
Curry, R.J.
a426dc90-9f99-47ef-93a5-21787c20e0a0

Curry, R.J. (2002) Prospects for obtaining an efficient organolanthanide-based infra-red light emitting diode. Photonics Conference 2002, Korea. 30 Oct - 01 Nov 2002.

Record type: Conference or Workshop Item (Other)

Abstract

The rapid development of polymer and molecular-based light emitting diodes has resulted in a new generation of low cost displays currently entering the market place. The use of organolanthanide molecules as emitting centres in these devices was first suggested as a means of improving the colour purity of the emission utilising the sharp 4f-4f transitions of the lanthanide ion. The energy transfer process involved in exciting the lanthanide ion however also increased the theoretical quantum efficiency from 25%, typical for a conventional device, to 100% due to the large spin-orbit coupling induced by the heavy ion. Despite this advantage the highest reported efficiency to date is 1.4%. More recently infra-red emitting organolanthanide based diodes have been demonstrated though again reported efficiencies are low. In this paper the prospects of producing an efficient organolanthanide-based light emitting diode are discussed with an emphasis on those emitting in the infra-red.

Text
2480.pdf - Other
Download (31kB)

More information

Published date: 2002
Venue - Dates: Photonics Conference 2002, Korea, 2002-10-30 - 2002-11-01

Identifiers

Local EPrints ID: 17011
URI: http://eprints.soton.ac.uk/id/eprint/17011
PURE UUID: b6125a47-0403-4a6d-bf0f-66d4a0980138

Catalogue record

Date deposited: 05 Sep 2005
Last modified: 19 Jul 2021 17:00

Export record

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×