Journal
RSC ADVANCES
Volume 5, Issue 115, Pages 95047-95053Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra12921d
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Funding
- EC through the Integrated Project from the Wales Ireland Network for Innovative Photovoltaic Technologies (WIN-IPT) project
- Interreg 4A, Wales Ireland Programme
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A new heteroleptic complex formulated as [Ag(I)(Bipy)(POP)]BF4 (Bipy = 2,2'-bipyridine; POP = bis[(2-diphenylphosphino)phenyl] ether) was synthesized and characterized by NMR and X-ray crystallography. The complex adopts tetrahedral coordination geometry. DFT calculations showed that upon excitation the structure of the cationic [Ag(Bipy)(POP)](+) complex remains practically unaffected and it is expected to exhibit a relatively small non-radiative decay with a large energy difference between the T-1 and S-0 states to almost 3 eV. The electronic spectrum of the complex exhibits absorption bands with a composite MLCT/LL'CT and IL character. A LEC device (ITO/ PEDOT:PSS/Ag(I):[BMIM]PF6/LiF:Ag) was fabricated that showed a wide emission with a turn-on voltage of ca. 4.5 V and maximum brightness of 395 cd m(-2) at 5.5 V.
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