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Now showing items 451-460 of 2111
"Two-Dimensional Nanosheets Produced by Liquid Exfoliation of Layered Materials"
(2011)
If they could be easily exfoliated, layered materials would become a diverse source
of 2-dimensional crystals whose properties would be useful in applications from
electronics to energy storage. We show that layered ...
Epitaxial molybdenum oxide grown on MO (110): LEED, STM, and density functional theory calculations
(American Physical Society, 2007)
The oxidation of Mo(110) was studied at 1000 ?C and 1?10?6 Torr oxygen. Low energy electron diffraction and scanning tunneling microscopy data were used to give a detailed analysis of the oxide surface structure. From ...
Nonradiative Energy Transfer and Photocurrent Enhancements in Hybrid Quantum Dot-MoS<inf>2</inf> Devices
(2018)
The energy transfer mechanism leading to highly efficient nonradiative energy transfer (NRET) from quantum dots (QDs) to monolayer MoS 2 devices has been investigated via a spectral dependence study. The spectral dependence ...
Contemporaneous ultraviolet and optical observations of direct and Raman-scattered O VI lines in symbiotic stars
(American Astronomical Society, 2000)
The optical spectra of some symbiotic binaries show two lines in the red region of the spectrum that cannot be
identified with any known allowed or forbidden transitions. A case has been made that these lines are
Raman-scattered ...
Optically pumped ZnCdSe-ZnSe quantum wells
(1996)
We have measured the gain spectrum of an optically pumped 40A ZnCdSe-ZnSe multiple quantum
well. Our calculation, which includes many body effects such as Coulomb enhancement and spectral
broadening due to carrier ...
Optical Transmitters based on High-Order Surface Grating Lasers for Applications in Communication Systems
(Trinity College Dublin. School of Physics. Discipline of Physics, 2021)
Optical communication is the forefront of modern communication systems and is unarguably
the leading technology for information sharing and transmission of large amounts of data over longer distances with low latency. Since ...
Origin of ferroelectricity in the multiferroic barium fluorides BaM F4: A first principles study
(American Physical Society, 2006)
We present a first-principles study of the series of multiferroic barium fluorides with the composition BaM F4, where M is Mn, Fe, Co, or Ni. We discuss trends in the structural, electronic, and magnetic properties, and ...
Edge and confinement effects allow in situ measurement of size and thickness of liquid-exfoliated nanosheets
(2014)
Two-dimensional nanomaterials such as MoS2 are of great interest both because of their novel physical properties and their applications potential. Liquid exfoliation, an important production method, is limited by our ...
Quantifying the Effect of Separator Thickness on Rate Performance in Lithium-Ion Batteries
(2022)
In addition to improving parameters such as energy density and stability, it is important to maximise rate performance in lithium ion batteries. While much work has focused on rate-limiting factors associated with the ...