000153018 001__ 153018
000153018 005__ 20251017144633.0
000153018 0247_ $$2doi$$a10.1002/adom.202500051
000153018 0248_ $$2sideral$$a143494
000153018 037__ $$aART-2025-143494
000153018 041__ $$aeng
000153018 100__ $$aRoy, Jorge$$uUniversidad de Zaragoza
000153018 245__ $$aSurfing the color map with Carbazole‐Appended Cyclometalated N‐Heterocyclic Carbene Pt Complexes and their application in green organic Light‐Emitting Devices
000153018 260__ $$c2025
000153018 5060_ $$aAccess copy available to the general public$$fUnrestricted
000153018 5203_ $$aThis paper describes the stage‐wise synthesis of the new carbazole‐appended platinum (II) cyclometalated N‐heterocyclic carbene complex, [Pt(Cbz‐C^C*bzim)Cl(NCCH3)] (A) (HC^C* = 1‐(4‐(9H‐carbazol‐9‐yl)phenyl)‐3‐methyl‐1H‐benzimidazol‐2‐ylidene) from 9‐(4‐bromo‐phenyl)‐9H‐carbazole, benzimidazole and [{Pt(μ‐Cl)(ƞ3‐2‐Me‐C3H4)}2]. Complex A, and the analogous imidazole derivative [Pt(Cbz‐C^C*im)Cl(NCCH3)] (B), are the precursors of the neutral complexes [Pt(Cbz‐C^C*bzim/im)(acac)] (1A/B, acac: acetylacetonate), [Pt(Cbz‐C^C*bzim/im)(P^O1)] (2A/B, P^O1: 2‐diphenylphosphinobenzoate) and [Pt(Cbz‐C^C*bzim/im)(P^O2)] (3A/B, P^O2: 2‐diphenylphosphinophenolate). At low doping concentration in poly(methylmethacrylate (PMMA) films (1% for 1A/B and 5% for 2A/B and 3A/B), they show a bright phosphorescent emission, peaking in the blue (1B‐3B) or blue–green (1A‐3A) spectral range. The planar structure of 1A and 1B enables intermolecular interactions, especially for 1A, with a more extended π–system, which changes the color from blue to yellowish–green at higher doping concentration. Organic Light‐Emitting Diodes (OLEDs) using 1A and 1B as emitters in thick doped and in ultrathin non‐doped emitting layers show aggregate‐derived emission even at very low concentrations. The best performing devices in this work use 1A and 3A and show a turn‐on voltage of 2.99 and 2.55 V, a peak luminance of 39208 and 25837 cd m−2, and a peak current efficiency of 44.9 and 40.0 cd A−1 (12.8% and 13.4% EQE).
000153018 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E17-23R$$9info:eu-repo/grantAgreement/EC/HORIZON EUROPE/101073045 /EU/- addressing the challenges of high-performance solut$$9info:eu-repo/grantAgreement/ES/MICINN/PID2021-122869NB-I00
000153018 540__ $$9info:eu-repo/semantics/embargoedAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000153018 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000153018 700__ $$aForzatti, Michele
000153018 700__ $$aMartín, Antonio
000153018 700__ $$0(orcid)0000-0002-5881-9698$$aAra, Irene$$uUniversidad de Zaragoza
000153018 700__ $$aStanzani, Edoardo
000153018 700__ $$aJenatsch, Sandra
000153018 700__ $$aBolink, Henk J.
000153018 700__ $$0(orcid)0000-0003-1812-3175$$aFuertes, Sara
000153018 700__ $$aTordera, Daniel
000153018 700__ $$0(orcid)0000-0002-0257-0483$$aSicilia, Violeta$$uUniversidad de Zaragoza
000153018 7102_ $$12010$$2760$$aUniversidad de Zaragoza$$bDpto. Química Inorgánica$$cÁrea Química Inorgánica
000153018 773__ $$g(2025), 2500051 [13 pp.]$$pAdv. opt. mater.$$tAdvanced Optical Materials$$x2195-1071
000153018 8564_ $$s3726985$$uhttps://zaguan.unizar.es/record/153018/files/texto_completo.pdf$$yVersión publicada$$zinfo:eu-repo/date/embargoEnd/2026-03-17
000153018 8564_ $$s2575302$$uhttps://zaguan.unizar.es/record/153018/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada$$zinfo:eu-repo/date/embargoEnd/2026-03-17
000153018 909CO $$ooai:zaguan.unizar.es:153018$$particulos$$pdriver
000153018 951__ $$a2025-10-17-14:27:21
000153018 980__ $$aARTICLE