Results 151 to 160 of about 3,218,036 (364)

Photocatalytic Activity of Ionic Carbon Nitrides is Governed by Cation‐Modulated Dark Exciton Dynamics

open access: yesAdvanced Science, EarlyView.
This study establishes a direct link between photocatalytic activity, spectroscopic properties, and theoretical analysis of structural effects on exciton behavior in ionic carbon nitrides with different cations. The exciton lifetimes and photocatalytic activity are shown to be primarily related to different dark exciton dynamics governed by changes in ...
Arindam Konar   +12 more
wiley   +1 more source

Doctrina y tradición en el pensamiento temprano de W. Benjamin. Un capítulo relegado en el estudio de su recepción de I. Kant

open access: yesIdeas y Valores, 2013
Se examina el significado de los conceptos de “doctrina” y “tradición” en las reflexiones de W. Benjamin hacia 1917, íntimamente vinculados con su recepción de Kant. Los escasos análisis de tal apropiación relegan este aspecto.
Florencia Abadi
doaj  

A Reaction‐Diffusion Frame for Accessing Metabolic O2 Fluxes in Single Microalgal Cells with Low‐Cost Wide‐Field Imaging of Nanosensor Luminescence Lifetime

open access: yesAdvanced Science, EarlyView.
Individual Chlamydomonas reinhardtii (C. reinhardtii) living cells on an agarose pad containing luminescent O2 nanosensors are imaged with a simple wide‐field protocol of lifetime imaging. The resulting maps of phosphorescence lifetime are analyzed within a reaction‐diffusion frame to access the distribution of metabolic O2 fluxes generated by single ...
Hélène Merceron   +11 more
wiley   +1 more source

Das Unabgeschlossene (das Glück). Walter Benjamin’s “Idea of Happiness”

open access: yesOpen Philosophy
The considerable literature discussing Walter Benjamin’s “idea of happiness” points both to the important role it plays in his thought and, in this context, to the diversity of interpretations his elliptic style has generated.
Liska Vivian
doaj   +1 more source

Photopolymerized Mixed Matrix Membranes for Liquid Organic Hydrogen Carrier Separation

open access: yesAdvanced Science, EarlyView.
Photopolymerized membranes with high metal organic framework (MOF)/Pd activated carbon loading enable selective separation of hydrogen‐rich/lean liquid organic hydrogen carriers (LOHCs) under mild operational conditions. The employed fabrication approach yields stratified, multilayer structures with enhanced aromatic/aliphatic (toluene ...
Abdollah Khosravanian   +8 more
wiley   +1 more source

Dendronized Encapsulation with Hierarchical Rigidification Enabling Robust Solution Room‐Temperature Phosphorescence, Efficient Electroluminescence and Ultralong Afterglow

open access: yesAdvanced Science, EarlyView.
The organic RTP's rigidity‐flexibility conflict via multiscale confinement is resolved. Dendronized donor‐acceptor with alkyl carbazoles enables intramolecular encapsulation and stability of triplet excitons, achieving 9 ms solution RTP. Combined with aggregation/PMMA doping, this suppresses nonradiative decay, achieving 72% film PLQY/17.2% OLED EQE ...
Chensen Li   +8 more
wiley   +1 more source

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