Results 111 to 120 of about 10,693 (226)

Room Temperature Wafer‐Scale Synthesis of Highly Transparent and Conductive p‐Type Sulfur‐Doped Copper Iodide

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Wafer‐scale, room temperature synthesis of S‐doped CuI achieves high‐performance transparent p‐type electrodes. Pre‐doping enables precise control of crystallinity and hole density, yielding 86% transmittance and 75 Ω sq−1 sheet resistance. A record‐high figure of merit of 95 000 MΩ−1 and excellent flexibility across diverse substrates are demonstrated.
Sungsan Kang   +13 more
wiley   +1 more source

Intramolecular Matere Bonds in Isostructural Rubidium (18‐Crown‐6) Pertechnetate and Perrhenate Dimers

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
Two rubidium cations that are not fully encapsulated by 18‐crown‐6 are bridged by two pertechnetate units to form a dimer. These two pertechnetate units are nearly linearly aligned to each other to form Matere bonds (MaBs), a type of noncovalent σ‐hole interaction.
Clarence Yong   +7 more
wiley   +1 more source

A new type of charged defect in amorphous chalcogenides

open access: yes, 2004
We report on density-functional-based tight-binding (DFTB) simulations of a series of amorphous arsenic sulfide models. In addition to the charged coordination defects previously proposed to exist in chalcogenide glasses, a novel defect pair, [As4]--[S3]+
A. Feltz   +8 more
core   +1 more source

Phosphoryl Halogen and Hydrogen Bonding Controls the Solid‐State Structures of Aryl Halide‐Containing Phosphonates

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
Intramolecular (RO)2PO→Halogen interaction versus intermolecular (RO)2PO···HOH hydrogen bonds. Although the O···I distance is shorter than the sum of the van der Waals radii of the atoms involved, there is no covalency involved in this interaction.
David Mross   +6 more
wiley   +1 more source

Stacking sequence determines Raman intensities of observed interlayer shear modes in 2D layered materials - A general bond polarizability model

open access: yes, 2015
2D layered materials have recently attracted tremendous interest due to their fascinating properties and potential applications. The interlayer interactions are much weaker than the intralayer bonds, allowing the as-synthesized materials to exhibit ...
Cong, Chunxiao   +5 more
core   +1 more source

Heteroatom location‐ and orientation mode‐dependent reverse intersystem crossing rate in multiple resonance emitters

open access: yesFlexMat, EarlyView.
By constructing two pairs of isomers with different heteroatom anchoring positions, the relationship between heteroatom location and orientation mode and reverse intersystem crossing rate constant (kRISC) in multiple resonance (MR) emitters is systematically investigated.
Tingting Huang   +5 more
wiley   +1 more source

Control of tetrahedral coordination and superconductivity in FeSe0.5Te0.5 thin films

open access: yes, 2010
We demonstrate a close relationship between superconductivity and the dimensions of the Fe-Se(Te) tetrahedron in FeSe0.5Te0.5. This is done by exploiting thin film epitaxy, which provides controlled biaxial stress, both compressive and tensile, to ...
Broholm, C.   +3 more
core   +1 more source

Isolation and Structural Characterization of Se‐Hügerschoff Intermediates Derived From 4‐Bromoaniline

open access: yesJournal of Heterocyclic Chemistry, EarlyView.
Isolation and characterization of Se‐brominated Hügerschoff intermediates enable structural and mechanistic insight into seleno‐Hügerschoff cyclization to 2‐aminobenzoselenazoles. ABSTRACT A brominated intermediate within the Hügerschoff reaction has long been postulated but never directly observed.
Adam W. E. Stewart   +5 more
wiley   +1 more source

Charge density wave and spin $1/2$ insulating state in single layer 1T-NbS$_2$

open access: yes, 2019
In bulk samples and few layer flakes, the transition metal dichalcogenides NbS$_2$ and NbSe$_2$ assume the H polytype structure with trigonal prismatic coordination of the Nb atom.
Calandra, Matteo, Tresca, Cesare
core   +2 more sources

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