High-performance light-emitting diodes based on carbene-metal-amides-Reference-Cited by-同舟云学术

High-performance light-emitting diodes based on carbene-metal-amides

Published:2017-04-14 Issue:6334 Volume:356 Page:159-163
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Di Dawei¹^ORCID,Romanov Alexander S.²^ORCID,Yang Le¹^ORCID,Richter Johannes M.¹,Rivett Jasmine P. H.¹^ORCID,Jones Saul¹^ORCID,Thomas Tudor H.¹,Abdi Jalebi Mojtaba¹^ORCID,Friend Richard H.¹^ORCID,Linnolahti Mikko³^ORCID,Bochmann Manfred²^ORCID,Credgington Dan¹^ORCID

Affiliation:

1. Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK.

2. School of Chemistry, University of East Anglia, Earlham Road, Norwich NR4 7TJ, UK.

3. Department of Chemistry, University of Eastern Finland, Joensuu Campus, FI-80101 Joensuu, Finland.

Abstract

Adding a twist for enhanced performance The efficiency of organic light-emitting diodes (OLEDs) is fundamentally governed by the ratio of emissive singlet to dark triplet excitons that are formed from spin-polarized electron and hole currents within the material. Typically, this has set an upper limit of 25% internal quantum efficiency for OLEDs. Di et al. manipulated the ratio of spin states through a modification of process chemistry. They introduced a rotation of the molecular structure, which inverted the spin-state energetics and enhanced OLED performance. Science , this issue p. 159

Funder

Royal Society

European Research Council

Academy of Finland

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference48 articles.

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