Lithium-ion batteries (LIB) have developed into the mainstream power source of energy storage devices due to their advantages: high power density, high power, long service life, and less pollution. This materials deve...
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Due to extraordinary electronic and optoelectronic properties, large-scale single-crystal two-dimensional (2D) semiconducting transition metal dichalcogenide (TMD) monolayers have gained significant interest in the de...
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Magneto-optical techniques have become essential tools in spintronics, enabling the investigation of spin dynamics in the ultrafast regime. A key challenge in this field has been to accurately isolate the contribution...
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Modulation of electronic properties of materials by electric fields is central to the operation of modern semiconductor devices, providing access to complex electronic behaviors and greater freedom in tuning the energ...
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Modulation of electronic properties of materials by electric fields is central to the operation of modern semiconductor devices, providing access to complex electronic behaviors and greater freedom in tuning the energy bands of materials. Here, we explore one-dimensional superlattices induced by a confining electrostatic potential in monolayer MoS2, a prototypical two-dimensional semiconductor. Using first-principles calculations, we show that periodic potentials applied to monolayer MoS2 induce electrostatic superlattices in which the response is dominated by structural distortions relative to purely electronic effects. These structural distortions reduce the intrinsic band gap of the monolayer substantially while also polarizing the monolayer through piezoelectric coupling, resulting in spatial separation of charge carriers as well as Stark shifts that produce dispersive minibands. Importantly, these minibands inherit the valley-selective magnetic properties of monolayer MoS2, enabling fine control over spin-valley coupling in MoS2 and similar transition-metal dichalcogenides.
In this paper, Graphene Aerogel (GA) is prepared and investigated for its potential employment for solar energy harvesting applications. GA can be applied in solar cells applications as an absorption material and as a...
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Acoustoelastic metamaterials are widely used as composite cores in sandwich beams. However, discussions on the application of metamaterials in face sheets have been sporadic. In this work, we parametrically explore th...
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Direct imaging of transient electronic coherences in molecules has been challenging, with the potential to control electron motions and influence reaction outcomes. We propose a novel time-resolved vortex electron dif...
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Direct imaging of transient electronic coherences in molecules has been challenging, with the potential to control electron motions and influence reaction outcomes. We propose a novel time-resolved vortex electron diffraction technique to spatially resolve transient electronic coherences in isolated molecules. By analyzing helical dichroism diffraction signals, the contribution of electronic populations cancels out, isolating the purely electronic coherence signals. This allows direct monitoring of the time evolution and decoherence of transient electronic coherences in molecules.
This study reports on the fabrication and characterization of a copper oxide (CuO)-based photoactive cell. Copper was thermally evaporated onto two substrates and post-treated using chemical and thermal treatments to ...
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We report a split ring photonic crystal that demonstrates an order of magnitude larger peak energy density compared to traditional photonic crystals. The split ring offers highly focused optical energy in an accessibl...
The Ni-rich LiNi1-x-yMnxCoyO2 (NMC) layered oxides have been promising materials to replace the LiCoO2 commercial cathode due to their high operation voltages, low cost, and enhanced capacity. However, structural inst...
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