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Affichage des publications 541 à 550 sur 858 au total

Physique Nucléaire Expérimentale

Neutron/gamma pulse shape discrimination in plastic scintillators: Preparation and characterization of various compositions

This work deals with the preparation and evaluation of plastic scintillators for neutron/gamma pulse shape discrimination (PSD). We succeeded in developing a plastic scintillator with good neutron/gamma discrimination properties in the range of what…

Pauline Blanc, Matthieu Hamel, Chrystèle Dehé-Pittance, Licinio Rocha, Robert B. Pansu, Stéphane Normand

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment -

Chimie de coordination

Synthesis, X-ray diffraction analysis and nonlinear optical properties of hexacoordinated organotin compounds derived from Schiff bases

The reaction of N,N-bis(2-hydroxy-4-R-benzylidene)-1,2-phenylendiimine (1 R = OH, 2 R = OMe) with R′2SnO (R′ = Me, n-Bu, Ph) provided six new organotin derivatives: dimethyl-di-n-butyl- and diphenyl[N,N′-bis(3-hydroxysalicylaldehyde)-1,2…

B. M. Munoz-Flores, R. Santillan, N. Farfan, V. Alvarez-Venicio, V. M. Jimenez-Perez, M. Rodriguez, O. G. Morales-Saavedra, P.G. Lacroix, Christine Lepetit, K. Nakatani

Journal of Organometallic Chemistry -

ou physique

Efficient Sensing of Explosives by Using Fluorescent Nonporous Films of Oligophenyleneethynylene Derivatives Thanks to Optimal Structure Orientation and Exciton Migration

The fluorescence of thin films of a diimine-substituted phenyleneethynylene compound can be efficiently quenched by nitroaromatic vapors, which is not the case for the unsubstituted parent compound. Thin-film porosity is usually considered to be an…

Thomas Caron, Eric Pasquinet, Arie Van der lee, Robert B. Pansu, V. Rouessac, Simon Clavaguera, Myriam Bouhadid, Françoise Serein-Spirau, Jean-Pierre Lère-Porte, Pierre Montméat

Chemistry - A European Journal -

Chimie organique

2-Substituted vs 4-substituted-9,9′-spirobifluorene host materials for green and blue phosphorescent OLEDs: a structure-property relationship study

We report a structure-property relationship study of four 9,9′-spirobifluorene (SBF) derivatives (4-5Pm-SBF, 2-5Pm-SBF, 4-Ph-SBF and 2-Ph-SBF), substituted with either phenyl or pyrimidine at the \C2\ or \C4\ position of the \SBF\ core. Structural,…

Sebastien Thiery, Céline Declairieux, Denis Tondelier, Gijun Seo, Bernard Geffroy, Olivier Jeannin, Rémi Métivier, Joëlle Rault-Berthelot, Cyril Poriel

Tetrahedron -

Chimie organique

9,9'-Spirobifluorene and 4-phenyl-9,9'- spirobifluorene: pure hydrocarbon small molecules as hosts for efficient green and blue PhOLEDs

We report herein a new pure hydrocarbon material, 4-phenyl-9,9′-spirobifluorene (4-Ph-SBF), with a high triplet energy level (ET: 2.77 eV) as a host for blue phosphorescent organic light-emitting diodes (PhOLEDs). Structural, thermal,…

Sebastien Thiery, Denis Tondelier, Ce Declairieux, Seo Gijun, Bernard Geffroy, Olivier Jeannin, Joëlle Rault-Berthelot, Rémi Métivier, Cyril Poriel

Journal of Materials Chemistry C -

ou physique

Visible-emitting hybrid sol–gel materials comprising lanthanide ions: thin film behaviour and potential use as phosphors for solid-state lighting

The synthesis and characterization, as well as the film-forming and luminescent properties of four visible-emitting hybrid organic-inorganic sol-gel materials are reported. They show thermal stability up to 165°C. Deposition conditions were…

Xiaoguang Huang, Gaël Zucchi, Jacqueline Tran, Robert B. Pansu, Arnaud Brosseau, Bernard Geffroy, François Nief

Journal of new materials for electrochemical systems -

Matériaux

A spiral designed surface based on amino-perylene grafted polyacrylic acid

This communication shows the possibility to induce spontaneous special surface organisation by means of grafting f luorescent aminobenzo[g,h,i]perylene derivative onto surface grown polyacrylic chains

Elena Celia, Sonia Amigoni, Elisabeth Taffin de Givenchy, Grégory Pieters, Anne Gaucher, Damien Prim, Jean-Frédéric Audibert, Rachel Méallet-Renault, Robert Pansu, Frédéric Guittard

Chemical Communications -

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