First light-emitting electrochemical cell with [Ag(I)(N^N)(P^P)] type complex

Omar Moudam; Athanassios C. Tsipis; Srikanth Kommanaboyina; Peter N. Horton; Simon J. Coles

doi:10.1039/C5RA12921D

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First light-emitting electrochemical cell with [Ag(i)(N^N)(P^P)] type complex†

Omar Moudam,*^a Athanassios C. Tsipis,*^b Srikanth Kommanaboyina,^c Peter N. Horton^d and Simon J. Coles

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* Corresponding authors

^a School of Electronic Engineering, University of Bangor, Dean St, Bangor, UK
E-mail: omoudam@yahoo.co.uk

^b Laboratory of Inorganic and General Chemistry, Department of Chemistry, University of Ioannina, 451 10 Ioannina, Greece
E-mail: attsipis@uoi.gr

^c School of Chemistry, University of Bangor, Bangor, UK

^d EPSRC National Crystallography Service, School of Chemistry, University of Southampton, Highfield, Southampton, UK

Abstract

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 T₁ and S₀ 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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Article information

DOI: https://doi.org/10.1039/C5RA12921D
Article type: Paper
Submitted: 03 Jul 2015
Accepted: 26 Oct 2015
First published: 04 Nov 2015

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RSC Adv., 2015,5, 95047-95053

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First light-emitting electrochemical cell with [Ag(I)(N^N)(P^P)] type complex

O. Moudam, A. C. Tsipis, S. Kommanaboyina, P. N. Horton and S. J. Coles, RSC Adv., 2015, 5, 95047 DOI: 10.1039/C5RA12921D

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First light-emitting electrochemical cell with [Ag(i)(N^N)(P^P)] type complex†

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First light-emitting electrochemical cell with [Ag(I)(N^N)(P^P)] type complex

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