Opendata, web and dolomites

CQWLED SIGNED

Overcoming the efficiency limitation of semiconductor quantum dot-based light-emitting diodes

Total Cost €

0

EC-Contrib. €

0

Partnership

0

Views

0

 CQWLED project word cloud

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

air    purity    assembled    generation    inorganic    dots    considerably    lifetime    colloidal    synthesis    97    representing    external    pioneers    directionality    found    dimensional    limit    ed    interparticle    yield    quantum    overcome    photophysical    led    layer    wells    hybrid    realize    fulfill    gamut    plane    plqy    substrate    utilize    100    solution    wasted    film    nanocrystals    color    efficiency    diodes    boosting    optimally    suggested    oled    oihps    semiconductors    aie    quenching    physics    aggregation    internal    eqe    2020    standard    never    group    ingan    oihp    rec    compromising    class    extremely    fundamental    newly    device    lower    emitting    exciton    total    20    limitation    processed    emission    organic    photoluminescence    realization    interface    possess    cqws    lot    glass    ultimate    theoretical    bottleneck    superlattices    tir    compounds    displays    materials    feasible    perpendicular    halide    energy    oleds    light    photons    cqd    optoelectronics    transfer    compound    upper    reflection    dot    cqds    leds    perovskites    self   

Project "CQWLED" data sheet

The following table provides information about the project.

Coordinator
EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH 

Organization address
address: Raemistrasse 101
city: ZUERICH
postcode: 8092
website: https://www.ethz.ch/de.html

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 Switzerland [CH]
 Total cost 1˙498˙515 €
 EC max contribution 1˙498˙515 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2019-STG
 Funding Scheme ERC-STG
 Starting year 2020
 Duration (year-month-day) from 2020-01-01   to  2024-12-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH CH (ZUERICH) coordinator 1˙498˙515.00

Map

 Project objective

The colloidal quantum dots (CQDs) are an emerging class of light-emitting compounds for solution-processed optoelectronics such as the light-emitting diodes (LEDs). Compared to the state-of-the-art compound semiconductors and organic light emitting diodes (OLED), the CQD-based LEDs possess extremely high color purity and low materials cost, representing the only feasible materials solution towards realization of the newly-defined Rec. 2020 standard for the next-generation displays. However, the theoretical upper limit of the device external quantum efficiency (EQE) is only ~20%, considerably lower than those in OLEDs and InGaN LEDs. The fundamental bottleneck is that it is not yet possible to control the emission directionality perpendicular to the substrate plane in the CQD superlattices, without compromising the photoluminescence quantum yield (PLQY). As a result, a lot of photons are wasted due to the total internal reflection (TIR) at the air/glass interface, as well as exciton quenching during interparticle energy transfer. In order to overcome the efficiency limitation, my research group pioneers synthesis, physics, and LED device of layer-controlled colloidal quantum wells (CQWs) of organic-inorganic hybrid lead halide perovskites (OIHPs), the two-dimensional nanocrystals of OIHP in colloidal solution. Our results have suggested that the materials system might be the ultimate solution for the quantum-dot based LEDs. We found that the CQWs possess: (i) the aggregation-induced emission (AIE) characteristics, boosting the film PLQY up to 97%, and (ii) the emission directionality (ED) perpendicular to the substrate plane in their self-assembled superlattices. Based on the new photophysical properties that have never been found in any other CQD systems, in this proposal, we aim to optimally utilize the characteristics of the AIE and ED, in order to realize high-efficiency and long-lifetime LED technology that can fulfill 100% Rec. 2020 color gamut.

Are you the coordinator (or a participant) of this project? Plaese send me more information about the "CQWLED" project.

For instance: the website url (it has not provided by EU-opendata yet), the logo, a more detailed description of the project (in plain text as a rtf file or a word file), some pictures (as picture files, not embedded into any word file), twitter account, linkedin page, etc.

Send me an  email (fabio@fabiodisconzi.com) and I put them in your project's page as son as possible.

Thanks. And then put a link of this page into your project's website.

The information about "CQWLED" are provided by the European Opendata Portal: CORDIS opendata.

More projects from the same programme (H2020-EU.1.1.)

HyperBio (2019)

Vis-NIR Hyperspectral imaging for biomaterial quality control

Read More  

OSIRIS (2020)

Automatic measurement of speech understanding using EEG

Read More  

NEUTRAMENTH (2018)

A redox-neutral process for the cost-efficient and environmentally friendly production of Menthol

Read More