HETIRIDIUM

Tris-heteroleptic cyclometalated iridium(III) complexes for white electroluminescence

 Coordinatore THE UNIVERSITY OF BIRMINGHAM 

 Organization address address: Edgbaston
city: BIRMINGHAM
postcode: B15 2TT

contact info
Titolo: Ms.
Nome: May
Cognome: Chung
Email: send email
Telefono: 441214000000
Fax: 441214000000

 Nazionalità Coordinatore United Kingdom [UK]
 Totale costo 100˙000 €
 EC contributo 100˙000 €
 Programma FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call FP7-PEOPLE-2012-CIG
 Funding Scheme MC-CIG
 Anno di inizio 2012
 Periodo (anno-mese-giorno) 2012-11-01   -   2016-10-31

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    THE UNIVERSITY OF BIRMINGHAM

 Organization address address: Edgbaston
city: BIRMINGHAM
postcode: B15 2TT

contact info
Titolo: Ms.
Nome: May
Cognome: Chung
Email: send email
Telefono: 441214000000
Fax: 441214000000

UK (BIRMINGHAM) coordinator 100˙000.00

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

electroluminescent    center    active    lighting    single    broad    cyclometalated    photophysical    iridium    light    el       emitting    phosphorescent    white    organic    emitters    wscpes    ligand    la    complexes    emission    efficient   

 Obiettivo del progetto (Objective)

'For economical and ecological reasons, limiting the use of fossil fuel is one of the greatest challenges of our time. Nowadays, about 20% of the European electrical energy is used for lighting and considerable savings could be achieved by developing more efficient lighting systems. Electroluminescent (EL) devices based on organic thin-films are considered as one of the most promising response to the demand for efficient lighting technology.

In EL devices, light originates from the radiative relaxation of an excited state localized on a luminescent molecule (the dopant). Due to their suitable photophysical properties, cyclometalated iridium(III) complexes are arguably the most studied family of phosphorescent dopants for OLEDs during the last decade. Organic white light-emitting devices (WOLEDs) are obtained by combining the emission from blue, green and red emitters. Different approaches can be used to mix the emission of the different emitters but they all require complex device architectures, which have a direct impact on the cost of production, greatly hindering their market entry.

The aim of the proposal is to develop white light emitting single centered phosphorescent emitters (WSCPEs) to simplify the processing of the devices, resulting on the long term in significant costs reduction. WSCPEs are molecules displaying broad emission covering most of the visible spectrum, this emission originating from a single active center (no excimer, no dual-emission, no double-emission from two active centers).

During the project, we will: (1) study tris-heteroleptic iridium(III) phosphorescent complexes of the form [Ir(C^N1)(C^N2)(La)] (C^Nx = bidentate cyclometalated ligand, La = ancillary ligand(s)); (2) determine the electronic and geometric parameters controlling their photophysical and electrochemical properties; (3) exploit this knowledge to prepare efficient single-center broad emitters for white light emitting electroluminescent devices.'

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