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ROLEDS

Highly Efficient Photoemitters for Light-Emitting Diodes Based on Intramolecular Rotation

Total Cost €

0

EC-Contrib. €

0

Partnership

0

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 ROLEDS project word cloud

Explore the words cloud of the ROLEDS project. It provides you a very rough idea of what is the project "ROLEDS" about.

oleds    light    theoretical    first    ipr    efficient    flexible    spin    brightness    tvs    harvesting    sub    discovery    emitting    iridium    energy    realization    cheap    100    structure    photo    microsecond    internal    efficiency    rarest    diodes    pct    device    discovered    suitable    below    sinks    silver    carbene    certain    display    complexes    protected    rasi    excitation    until    accessed    fabrication    linear    rotation    give    mechanism    displays    external    types    brighter    27    patent    emission    solution    dollar    world    replacements    compounds    lifetimes    emitters    times    hd    lighting    screen    ligands    excited    inversion    prototypes    rotationally    reached    triplet    market    organic    uk    inverted    smartphones    tv    molecular    gold    fast    materials    slot    earth    copper    singlet    billion    industry    flat    processed    electroluminescent    record    harvested    worldwide    desirable    quantum    class    incorporation    yield    discussed    techniques   

Project "ROLEDS" data sheet

The following table provides information about the project.

Coordinator
UNIVERSITY OF EAST ANGLIA 

Organization address
address: EARLHAM ROAD
city: NORWICH
postcode: NR4 7TJ
website: http://www.uea.ac.uk

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country United Kingdom [UK]
 Total cost 149˙115 €
 EC max contribution 149˙115 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-PoC
 Funding Scheme ERC-POC
 Starting year 2017
 Duration (year-month-day) from 2017-07-01   to  2018-12-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITY OF EAST ANGLIA UK (NORWICH) coordinator 149˙115.00

Map

 Project objective

'We have discovered a new class of photo- and electroluminescent complexes which are suitable for incorporation into organic light emitting diodes (OLEDs) and which give up to 100% internal quantum yield. The new compounds are particularly suitable for the fabrication of OLEDs via cheap solution-processing techniques and have so far reached 27% external quantum efficiency, a record for any solution-processed device. The new complexes have a linear, rotationally flexible structure, and it is this rotation that allows 100% of the excitation energy to be harvested, by a new emission mechanism (“rotationally accessed spin-state inversion”, RASI). OLEDs are widely used as flat-screen displays (TVs, smartphones), a multi-billion dollar market worldwide. The industry-leading emitters are based on complexes of iridium, one of the rarest elements on earth. Our emitters are compounds of copper, silver and gold, suitable as “slot-in” replacements of iridium. IPR is protected by two UK and one PCT World patent applications. The key discovery is that in certain types of coordination complexes based on carbene ligands the excited singlet state sinks below the excited triplet state during molecular rotation. To our knowledge this is the first realization of 'spin-state inverted' materials, until now discussed only as a theoretical concept. The result is efficient, very fast light harvesting with highly desirable short (sub-microsecond) excitation lifetimes, leading to high display brightness (in prototypes 20 times brighter than a HD TV screen), with potential lighting applications.'

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