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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.

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

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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