Flexible blue-green and white light-emitting electrochemical cells based on cationic iridium complex

Phosphane tuning in heteroleptic [Cu(N^N)(P^P)]+complexes for light-emitting electrochemical cells

“…In [Cu(xantphosMes 2 )(6-Mebpy)][PF 6 ], the 6-Mebpy is orientationally disordered over two orientations and the relevant aromatic rings were refined as rigid bodies. C 56 H 54 CuF 6 N 2 OP 3 , M = 1041.51, yellow block, monoclinic, space group C2/c, a = 38.1932(19), b = 12.0648 (6), c = 26.5270(13) Å, β = 127.0427 (19)°, U = 9756.6(9) Å 3 , Z = 8, D c = 1.418 Mg m −3 , μ(Cu-Kα) = 2.117 mm −1 , T = 123 K. Total 31 926 reflections, 8749 unique, R int = 0.033. Refinement of 7701 reflections (685 parameters) with I > 2σ(I) converged at final R 1 = 0.0467 (R 1 all data = 0.0531), wR 2 = 0.0586 (wR 2 all data = 0.0623), GOF = 0.9991.…”

“…This journal is © The 6 ], the symmetry of the cation is lowered and phenyl rings D (see Scheme 3) split into two sets, those proximate to the methyl group of 6-Mebpy and those on the side of the unsubstituted pyridine ring ( Fig. 2a).…”

“…The powder and solution emission spectra are displayed in Fig. 12 and S24, † respectively, and data are given in Table 3 6 ], the introduction of additional methyl groups in the bpy ligand shifts the emission to higher energies (Table 3). Additionally, the photoluminescent quantum yield (PLQY) increases for solution and especially for powder emission along the series ( 24 exhibit low PLQY values, especially in solution.…”

“…Additionally, the simple device architecture of LECs and the use of air-stable electrode materials might reduce the manufacturing cost of electroluminescent devices and widen their field of applications. [5][6][7] LECs incorporating ionic transitionmetal complexes (iTMCs) based on iridium (and to a lesser extent ruthenium) have been the focus of intense investigations and show good performances in terms of colour tunability, brightness and device lifetime. [8][9][10][11][12][13][14] However, the limited availability of iridium and ruthenium in the Earth's crust motivated the search for alternative emissive materials.…”

Compostos de coordenação de Ir(III), Re(I) e Ru(II) para aplicações em dispositivos moleculares

“…Por sua vez, os LECs, principalmente os de complexos iônicos de metais de transição (iTMC-LECs -ionic transition metal complex LECs), são fabricados em arquiteturas menos elaboradas, com apenas uma única camada ativa [19,40,51,59]. A aplicação de potencial leva à redistribuição dos ânions e cátions que migram para as interfaces dos ânodos e cátodos, respectivamente, onde formam dupla camada eletrônica.…”