Results 111 to 120 of about 5,753,342 (293)

Nuclear resonance small-angle scattering of X-rays

open access: yes, 1996
A small-angle scattering technique is introduced for probing spatial variation of magnetization in solids with resolution down to ∼ 1 μm−1. The technique uses nuclear resonance scattering of synchrotron radiation.
Bernhard, A.   +13 more
core   +1 more source

The nature and impacts of fines in smelter-grade alumina [PDF]

open access: yes, 2009
Fines in smelter-grade aluminas art recognized (is a significant process problem in aluminum smelting. However understanding the nature of this fine material and how it impacts the reduction process arc, less clearly understood The combination of new ...
Zujovic, Zoran D.   +4 more
core   +1 more source

Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

open access: yesAdvanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao   +8 more
wiley   +1 more source

Hopping‐Mediated Zero‐Bias Photocharge Retention in Solution‐Processed Van Der Waals Heterostructures

open access: yesAdvanced Functional Materials, EarlyView.
Liquid–liquid interface assembly enables the fabrication of solution‐processed MoS2 and WSe2 centimeter‐scale, nanometer‐thick type‐II heterostructures on paper. Interfacial charge separation and hopping‐limited recombination produce rectification and persistent photocharge retention at zero bias.
Aniello Pelella   +11 more
wiley   +1 more source

Solid-state nuclear magnetic resonance of rhodopsin and its photointermediates

open access: yes, 2010
Photoisomerization of the membrane-bound light receptor protein rhodopsin leadsto a highly energetic species called bathorhodopsin, which is stable at temperaturesbelow 125 K.
Concistre, Maria
core   +1 more source

Hybrid Ferroelectric Tunnel Junctions with Intrinsic Nonlinearity and Self‐Rectification via Interfacial Reconstruction

open access: yesAdvanced Functional Materials, EarlyView.
Rapid thermal annealing reconstructs the BCFO/Nb:STO interface into an atomically thin reconstructed interfacial layer, which reshapes the tunneling barrier and converts a high‐TER ferroelectric tunnel junction into an intrinsically nonlinear, self‐rectifying device.
Hojin Lee   +21 more
wiley   +1 more source

Angle-Resolved Optical Imaging of Interlayer Rotations in Twisted Bilayer Graphene

open access: yes
Twisted bilayer graphene (TBG) is a prototypical layered material whose properties are strongly correlated to interlayer coupling. The two stacked graphene layers with distinct orientations are investigated to generate peculiar optical and electronic ...
Shuo Mi (13216124)   +9 more
core   +1 more source

Circularly Polarized Electroluminescence and Spin‐Polarized Carrier Transport in Chiral‐Doped Polymer Films

open access: yesAdvanced Functional Materials, EarlyView.
Chiral dopants induce supramolecular chirality in an achiral polymer (PFO), generating spin‐polarized carriers via the chiral‐induced spin selectivity (CISS) and suggesting a possible contribution of Spin‐polarized carrier transport to circularly polarized electroluminescence (CPEL).
Kazuyuki Asahi   +4 more
wiley   +1 more source

Photoinduced Charge Separation in Single‐Component Squaraine Films: The Key Role of Electrostatic Disorder

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Neat films of organic dyes are an interesting technological platform for solar cells and photodetectors. Recently, the conventional biphasic bulk‐heterojunction paradigm for photoinduced charge separation was challenged by the observation that charge carriers can be photogenerated in single‐component materials. A comprehensive experimental and
Davide Giavazzi   +12 more
wiley   +1 more source

A fully automated millimetric rotary polariser quasi-optical system [PDF]

open access: yes, 2015
The thesis presents the design, construction, interfacing and performance of a "Fully Automated, Millimetric Rotary Polariser Quasi-Optical System". The system demonstrates that linear, elliptical and circular polarised millimetric radiation can be ...
Unsworth, Charles Peter
core   +1 more source

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