Results 31 to 40 of about 607,889 (218)

Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes

open access: yesAdvanced Materials, EarlyView.
Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti   +11 more
wiley   +1 more source

Phase‐Pure and Size‐Tunable Tin Halide Perovskite Quantum Dots

open access: yesAdvanced Materials, EarlyView.
A trioctylphosphine oxide modulated protocol allows for the synthesis and study of the optical properties of a broad library of tin halide perovskite quantum dots across multiple A‐ and X‐site compositions with precise size tuning while eliminating unwanted 2D phases.
Ole F. Dressler   +7 more
wiley   +1 more source

Femtosecond time-resolved photodissociation dynamics of methyl halide molecules on ultrathin gold films

open access: yesBeilstein Journal of Nanotechnology, 2011
The photodissociation of small organic molecules, namely methyl iodide, methyl bromide, and methyl chloride, adsorbed on a metal surface was investigated in real time by means of femtosecond-laser pump–probe mass spectrometry.
Mihai E. Vaida   +2 more
doaj   +1 more source

Resolving Nanoscale Heterogeneities in Lead Halide Perovskites Through Low‐Dose Concurrent 4D‐STEM‐EDX Mapping

open access: yesAdvanced Materials, EarlyView.
Mixed‐cation lead mixed‐halide perovskites suffer from structural instabilities linked to nanoscale heterogeneity. To probe this non‐destructively, a low‐dose, concurrent 4D‐STEM and EDX methodology has been developed. Examining a (FA0.83Cs0.17)Pb(I0.8Br0.2)3 film revealed a complex mosaic of coexisting crystal structures. Crucially, local deficiencies
Jinseok Ryu   +6 more
wiley   +1 more source

Polymer–ionic liquid interactions in aqueous media: A viscosity, conductivity, and UV–Vis study of poly(ethylene oxide) and 1-alkyl-4-methylpyridinium bromide

open access: yesChemical Thermodynamics and Thermal Analysis
Viscosity and electrical conductivity of ternary systems (poly(ethylene oxide) + 1-alkyl-4-methyl pyridinium bromide + water) were studied. The results imply that thermodynamic quality of solvent (1-alkyl-4-methyl pyridinium bromide aqueous solutions) is
Abbas Mehrdad   +2 more
doaj   +1 more source

Diketopyrrolopyrrole‐Based Cation as a Semiconducting Spacer in Layered Perovskite

open access: yesAdvanced Materials, EarlyView.
Diketopyrrolopyrrole cation incorporated layered perovskites exhibiting extended absorption profiles and enhanced charge carrier mobility with type‐II energy alignment. The improved photoconversion efficiency demonstrates the critical role of incorporating organic semiconductors in optimizing layered perovskite performance.
Waygen Thor   +8 more
wiley   +1 more source

Researchers develop alternatives to methyl bromide fumigation

open access: yesCalifornia Agriculture, 2013
California Agriculture - All ...
R Meadows
doaj   +2 more sources

Alternatives to Methyl bromide in Strawberry Production in the United States of America and the Mediterranean Region

open access: yesPhytopathologia Mediterranea, 2003
Methyl bromide (MB) is a broad-spectrum soil fumigant, which has been critical in strawberry production for forty years. Strawberry and other high-value cash crops benefit from pre-plant soil fumigation with MB and chloropicrin (Pic).
H.A. Ajwa   +6 more
doaj   +1 more source

Application of copper(II)-based chemicals induces CH3Br and CH3Cl emissions from soil and seawater

open access: yesNature Communications, 2022
Halogenated compounds impact stratospheric ozone. This study suggests agricultural application of Cu(II) chemicals induces abiotic production of methyl bromide and methyl chloride from soil and seawater, contributing to the atmospheric halogen load.
Yi Jiao   +5 more
doaj   +1 more source

Esterified Cholesterol Conjugates Enable LNP‐Mediated mRNA Delivery to the Blood–Brain Barrier Following Intravenous Administration

open access: yesAdvanced Materials, EarlyView.
A cholesterol‐conjugated lipid library enabled the identification of a ligand‐free LNP platform for efficient mRNA delivery to brain endothelial cells via systemic administration. This platform achieves selective BBB targeting without disrupting barrier integrity, and enables modulation of neuroinflammation and vascular function without requiring trans‐
Zeru Tian   +7 more
wiley   +1 more source

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