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Insights into enhanced electrochemiluminescence of a multiresonance thermally activated delayed fluorescence molecule

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SmartMat 2023年第2期4卷 106-119页

作者： Liuqing Yang Lihui Dong David Hall Mahdi Hesari yoann olivier Eli Zysman‐Colman Zhifeng Ding Department of Chemistry Western UniversityOntarioLondonCanada Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology School of Chemistry and Chemical EngineeringGuangxi UniversityNanningChina Organic Semiconductor Centre EaStCHEM School of ChemistryUniversity of St AndrewsSt AndrewsFifeUK Laboratory for Chemistry of Novel Materials University of MonsMonsBelgium Laboratory for Computational Modeling of Functional Materials Namur Institute of Structured MatterUniversity of NamurNamurBelgium

The electrochemiluminescence(ECL)behavior of a multiresonance thermally activated delayed fluorescence molecule has been investigated for the first time by means of ECL‐voltage curves,newly designed ECL‐time observatory,and ECL *** compound,Mes3DiKTa,shows complex ECL behavior,including a delayed onset time of 5 ms for ECL generation in both the annihilation pathway and the coreactant route,which we attribute to organic long‐persistent ECL(OLECL).Triplet‐triplet annihilation,thermally activated delayed fluorescence and uncompensated solution resistance cannot be ruled out as contributing mechanisms to the ECL.A very long ECL emission decay was attributed to OLECL as *** absolute ECL efficiencies of Mes3DiKTa were enhanced and reached 0.0013%in annihilation route and 1.1%for the coreactant system,which are superior to those of most other organic ECL *** is plausible that ECL materials with comparable behavior as Mes3DiKTa are desirable in applications such as ECL sensing,imaging,and light‐emitting devices.

关键词： electrochemiluminescence multiresonant thermally activated delayed fluorescence organic long‐persistent electrochemiluminescence triplet‐triplet annihilation

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Control of light emission of quantum emitters coupled to silicon nanoantenna using cylindrical vector beams

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Light(Science & Applications) 2023年第10期12卷 2248-2255页

作者： Martin Montagnac yoann Brûlé Aurélien Cuche Jean-Marie Poumirol Sébastien J.Weber Jonas Müller Guilhem Larrieu Vincent Larrey Franck Fournel olivier Boisron Bruno Masenelli Gérard Colas des Francs Gonzague Agez Vincent Paillard CEMES-CNRS Universitéde ToulouseToulouseFrance ICB Universitéde BourgogneCNRSDijonFrance LAAS-CNRS Universitéde ToulouseToulouseFrance CEA-LETI UniversitéGrenoble-AlpesGrenobleFrance Universitéde Lyon UniversitéLyon 1CNRS UMR 5510ILMVilleurbanneFrance Universitéde Lyon INSA LyonCNRSEcole Centrale de LyonUniversitéLyon 1CPEUMR 5270INLVilleurbanneFrance Bruno Masenelli

Light emission of europium(Eu^(3+))ions placed in the vicinity of optically resonant nanoantennas is usually controlled by tailoring the local density of photon states(LDOS).We show that the polarization and shape of the excitation beam can also be used to manipulate light emission,as azimuthally or radially polarized cylindrical vector beam offers to spatially shape the electric and magnetic fields,in addition to the effect of silicon nanorings(Si-NRs)used as *** photoluminescence(PL)mappings of the Eu^(3+)transitions and the Si phonon mappings are strongly dependent of both the excitation beam and the Si-NR *** experimental results of Raman scattering and photoluminescence are confirmed by numerical simulations of the near-field intensity in the Si nanoantenna and in the Eu^(3+)-doped film,*** branching ratios obtained from the experimental PL maps also reveal a redistribution of the electric and magnetic emission *** results show that it could be possible to spatially control both electric and magnetic dipolar emission of Eu^(3+)ions by switching the laser beam polarization,hence the near field at the excitation wavelength,and the electric and magnetic LDOS at the emission *** paves the way for optimized geometries taking advantage of both excitation and emission processes.

关键词： excitation cylindrical spatially

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Right coronary artery from the left sinus of valsalva:Multislice CT and transradial PCI

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World Journal of Cardiology 2011年第2期3卷 54-56页

作者： Rodrigo Bagur Onil Gleeton yoann Bataille Sylvie Bilodeau Josep Rodés-Cabau olivier F Bertrand Interventional Cardiology Laboratories Quebec Heart and Lung InstituteLaval UniversityQuebec CityQuebec G1V4G5Canada

A 42-year-old-woman presented with de novo crescendo ***-scintigraphy showed inferior *** angiogram revealed a right coronary artery(RCA),originating from the left sinus of Valsalva with a severe proximal systolic *** underwent successful transradial percutaneous coronary intervention with stent ***-computed tomography(MSCT) is usually used to evaluate coronary artery anomalies and can effectively show the anomalous RCA and the inter-arterial trajectory between the aorta and pulmonary *** of the origin of the coronary arteries are rare,but can produce specific clinicopathological entities that should be diagnosed with *** case report illustrates the role of MSCT in the detailed description of an abnormal coronary artery and the use of stenting for symptoms relief.

关键词： Coronary vessel anomalies Computed tomography Coronary angioplasty Percutaneous coronary angioplasty

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