Defects and energy transfer in Sr-=SUB=-9-=/SUB=-Lu(PO-=SUB=-4-=/SUB=-)-=SUB=-7-=/SUB=-, doped with ions Pr-=SUP=-3+-=/SUP=-

Control of dark current in photoelectrochemical (TiO₂/I⁻–I₃⁻) and dye-sensitized solar cells

The ruthenium complex bis-tetrabutylammonium cis-dithiocyanato-N,N9-bis-2,29-bipyridine-4-carboxylic acid, 49-carboxylate ruthenium(II), N-719, was found to block the dark current of dye sensitized solar cells (DSC), based on mesoporous TiO2 films deposited on a F-doped tin oxide electrode and the effect was compared to surface treatment by TiCl4 and the introduction of a compact TiO2 blocking ...

Combined Experimental and Theoretical Study on the Formation of the Elusive 2-Methyl-1-silacycloprop-2-enylidene Molecule under Single Collision Conditions via Reactions of the Silylidyne Radical (SiH; X²Π) with Allene (H₂CCCH₂; X¹A₁) and D4-Allene (D₂CCCD₂; X¹A₁)

The crossed molecular beam reactions of the ground-state silylidyne radical (SiH; XΠ) with allene (H2CCCH2; XA1) and D4-allene (D2CCCD2; X A1) were carried out at collision energies of 30 kJ mol−1. Electronic structure calculations propose that the reaction of silylidyne with allene has no entrance barrier and is initiated by silylidyne addition to the π electron density of allene either to one...

Magnetic and electronic properties of Eu₄Sr₄Ga₁₆Ge₃₀

Mesoporous Fe₂O₃–CdS Heterostructures for Real-Time Photoelectrochemical Dynamic Probing of Cu²⁺

A three-dimensional (3D) mesoporous Fe2O3−CdS nanopyramid heterostructure is developed for solar-driven, realtime, and selective photoelectrochemical sensing of Cu in the living cells. Fabrication of the mesoporous Fe2O3 nanopyramids is realized by an interfacial aligned growth and self-assembly process, based on the van der drift model and subsequent selective in situ growth of CdS nanocrystal...

One-Pot Synthesis of Single-Source Precursors for Nanocrystalline LED Phosphors M₂Si₅N₈:Eu²⁺ (M = Sr, Ba)

Highly efficient red-emitting nitridosilicate phosphors Sr2Si5N8:Eu and Ba1.5Sr0.5Si5N8:Eu (doping level 1 %) applicable to phosphor converted pc-LEDs were synthesized in nanocrystalline form at low temperatures employing a novel single-source precursor approach. Synthesis starts from nanocrystalline silicon and uses mixed metal amides M(NH2)2 with M ) Sr, Ba, Eu as reactive intermediates. In a...