Back to Search
Start Over
Thermally Stable Donor–Acceptor Type (Alkynyl)Gold(III) TADF Emitters Achieved EQEs and Luminance of up to 23.4% and 70 300 cd m−2 in Vacuum‐Deposited OLEDs
- Source :
- Advanced Science, Vol 6, Iss 18, Pp n/a-n/a (2019), Advanced Science
- Publication Year :
- 2019
- Publisher :
- Wiley, 2019.
-
Abstract
- Thermally stable, strongly luminescent gold‐TADF emitters are the clue to realize practical applications of gold metal in next generation display and lighting technology, a scarce example of which is herein described. A series of donor–acceptor type cyclometalated gold(III) alkynyl complexes with some of them displaying highly efficient thermally activated delayed fluorescence (TADF) with Φ up to 88% in thin films and emission lifetimes of ≈1–2 µs at room temperature are developed. The emission color of these complexes is readily tunable from green to red by varying the donor unit and cyclometalating ligand. Vacuum‐deposited organic light‐emitting diodes (OLEDs) with these complexes as emissive dopants achieve external quantum efficiencies (EQEs) and luminance of up to 23.4% and 70 300 cd m−2, respectively.
- Subjects :
- thermally activated delayed fluorescence
Materials science
General Chemical Engineering
General Physics and Astronomy
Medicine (miscellaneous)
02 engineering and technology
010402 general chemistry
Photochemistry
01 natural sciences
Biochemistry, Genetics and Molecular Biology (miscellaneous)
Metal
OLED
General Materials Science
Thin film
lcsh:Science
Diode
Full Paper
Dopant
Ligand
General Engineering
Full Papers
gold
021001 nanoscience & nanotechnology
Fluorescence
0104 chemical sciences
visual_art
visual_art.visual_art_medium
ligand‐to‐ligand charge transfer
lcsh:Q
0210 nano-technology
Luminescence
organic light‐emitting devices
Subjects
Details
- Language :
- English
- ISSN :
- 21983844
- Volume :
- 6
- Issue :
- 18
- Database :
- OpenAIRE
- Journal :
- Advanced Science
- Accession number :
- edsair.doi.dedup.....6e1c19627d476918ec3811ae207b4cae