Publications associées à Triiodure

Controlling PbI2 Stoichiometry during Synthesis to Improve the Performance of Perovskite Photovoltaics

Over the past decade, remarkable progress has advanced the field of perovskite solar cells to the forefront of thin film solar technologies. The stoichiometry of the perovskite material is of paramount importance as it determines the optoelectronic propert ...

2021

The Nature of Ion Conduction in Methylammonium Lead Iodide: A Multimethod Approach

Michael Graetzel, Joachim Maier, Alessandro Senocrate

By applying a multitude of experimental techniques including H-1, N-14, Pb-207 NMR and I-127 NMR/NQR, tracer diffusion, reaction cell and doping experiments, as well as stoichiometric variation, conductivity, and polarization experiments, iodine ions are u ...

Wiley-Blackwell2017

A new formation strategy of hybrid perovskites via room temperature reactive polyiodide melts

Michael Graetzel, Shaik Mohammed Zakeeruddin, Andrey Petrov

Here we introduce a new solvent-free preparation method for hybrid metal halide perovskites involving the direct reaction of metallic lead with polyiodide melts. We discovered new reactive polyiodide melts (RPMs) that can be prepared simply by adding eleme ...

Royal Soc Chemistry2017

Cyclic Hypervalent Iodine Reagents for Atom-Transfer Reactions: Beyond Trifluoromethylation

Jérôme Waser, Durga Prasada Rao Hari, Yifan Li, Maria Victoria Vita

Hypervalent iodine compounds are privileged reagents in organic synthesis because of their exceptional reactivity. Among these compounds, cyclic derivatives stand apart because of their enhanced stability. They have been widely used as oxidants, but their ...

Wiley-Blackwell2016

Uranium(IV) Terminal Hydrosulfido and Sulfido Complexes: The Nature of the Uranium–Sulfur Bond

Marinella Mazzanti, Julie Renée Michelle Andrez

Herein, we report the synthesis and characterization of a series of terminal uranium(IV) hydrosulfido and sulfido complexes, supported by the hexadentate, tacn-based ligand framework (Ad,MeArO)3tacn3– (= trianion of 1,4,7-tris(3-adamantyl-5-methyl-2-hydrox ...

Royal Soc Chemistry2016

Influence of Elemental Iodine on Imidazolium-Based Ionic Liquids: Solution and Solid-State Effects

Paul Joseph Dyson, Rosario Scopelliti, Zhaofu Fei, Felix Daniel Bobbink, Emilia Paunescu

Ionic liquids doped with I-2, usually resulting in the formation of polyiodide anions, are extensively used as electrolytes and in iodination reactions. Herein, NMR spectroscopy and single-crystal X-ray diffraction were used to rationalize the structures o ...

2015

Nanocomposite Semi-Solid Redox Ionic Liquid Electrolytes with Enhanced Charge-Transport Capabilities for Dye-Sensitized Solar Cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Magdalena Anna Marszalek

The ability of Pt nanostructures to induce the splitting of the I-I bond in iodine (triiodide) molecules is explored here to enhance electron transfer in the iodine/iodide redox couple. Following the dispersal of Pt nanoparticles at 2% (weight) level, char ...

Wiley-VCH Verlag Berlin2015

Raman Spectroscopy of Organic-Inorganic Halide Perovskites

Christophe Ballif, Jun Ho Yum, Stefaan De Wolf, Björn Niesen, Soo-Jin Moon, Jakub Holovsky, Martin Ledinsky

Micro-Raman spectroscopy provides laterally resolved microstructural information for a broad range of materials. In this Letter, we apply this technique to tri-iodide (CH3NH3PbI3), tribromide (CH3NH3PbBr3), and mixed iodide-bromide (CH3NH3PbI3-xBrx) organi ...

Amer Chemical Soc2015

Kinetics of the Regeneration by Iodide of Dye Sensitizers Adsorbed on Mesoporous Titania

Shaik Mohammed Zakeeruddin, Jacques-Edouard Moser, Arianna Marchioro, Julien Alexandre Andres, Peng Wang, Joël Teuscher

Regeneration of dye sensitizer molecules by reducing species contained in the electrolyte is a key mechanism in liquid dye-sensitized solar cells because it competes kinetically with a detrimental charge recombination process. Kinetics of the reduction by ...

Amer Chemical Soc2014

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Triiodure

Controlling PbI2 Stoichiometry during Synthesis to Improve the Performance of Perovskite Photovoltaics

The Nature of Ion Conduction in Methylammonium Lead Iodide: A Multimethod Approach

A new formation strategy of hybrid perovskites via room temperature reactive polyiodide melts

Cyclic Hypervalent Iodine Reagents for Atom-Transfer Reactions: Beyond Trifluoromethylation

Uranium(IV) Terminal Hydrosulfido and Sulfido Complexes: The Nature of the Uranium–Sulfur Bond

Influence of Elemental Iodine on Imidazolium-Based Ionic Liquids: Solution and Solid-State Effects

Nanocomposite Semi-Solid Redox Ionic Liquid Electrolytes with Enhanced Charge-Transport Capabilities for Dye-Sensitized Solar Cells

Raman Spectroscopy of Organic-Inorganic Halide Perovskites

Peracetic Acid Oxidation of Saline Waters in the Absence and Presence of H2O2: Secondary Oxidant and Disinfection Byproduct Formation

Kinetics of the Regeneration by Iodide of Dye Sensitizers Adsorbed on Mesoporous Titania

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Chattez avec Graph Search

Controlling PbI2 Stoichiometry during Synthesis to Improve the Performance of Perovskite Photovoltaics

The Nature of Ion Conduction in Methylammonium Lead Iodide: A Multimethod Approach

A new formation strategy of hybrid perovskites via room temperature reactive polyiodide melts

Influence of Elemental Iodine on Imidazolium-Based Ionic Liquids: Solution and Solid-State Effects

Raman Spectroscopy of Organic-Inorganic Halide Perovskites

Nanocomposite Semi-Solid Redox Ionic Liquid Electrolytes with Enhanced Charge-Transport Capabilities for Dye-Sensitized Solar Cells

Peracetic Acid Oxidation of Saline Waters in the Absence and Presence of H2O2: Secondary Oxidant and Disinfection Byproduct Formation

Kinetics of the Regeneration by Iodide of Dye Sensitizers Adsorbed on Mesoporous Titania

Cyclic Hypervalent Iodine Reagents for Atom-Transfer Reactions: Beyond Trifluoromethylation

Uranium(IV) Terminal Hydrosulfido and Sulfido Complexes: The Nature of the Uranium–Sulfur Bond