Results 81 to 90 of about 9,356 (243)

Broadband stimulated four-wave parametric conversion on a tantalum pentoxide photonic chip [PDF]

open access: yes, 2011
We exploit the large third order nonlinear susceptibility (?(3) or “Chi 3”) of tantalum pentoxide (Ta2O5) planar waveguides and realize broadband optical parametric conversion on-chip.
Chaneliere   +20 more
core   +1 more source

From Materials to Systems: Challenges and Solutions for Fast‐Charge/Discharge Na‐Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This review systematically analyzes the key characteristics limiting the fast‐charge/discharge capability of Na‐ion batteries (SIBs) from a multi‐scale perspective encompassing electrode materials, the electrode‐electrolyte interface, and the system. Furthermore, it presents practical solution strategies for the fundamental issues arising at each scale,
Bonyoung Ku   +5 more
wiley   +1 more source

The formation and properties of glasses based on Ga2S3-Bi2S3 system

open access: yesJournal of Asian Ceramic Societies, 2020
The formation and properties of glasses based on a stoichiometric pseudo-three-component system, Ga2 S3-Bi2 S3-SnS, were investigated for the application as an infrared transmitting material. Glasses were obtained in the compositional range from 30 to 40 
Kohei Kadono   +4 more
doaj   +1 more source

Electrical properties of Bi-implanted amorphous chalcogenide films

open access: yes, 2014
The impact of Bi implantation on the conductivity and the thermopower of amorphous chalcogenide films is investigated. Incorporation of Bi in Ge-Sb-Te and GeTe results in enhanced conductivity.
Colaux, Julien L.   +11 more
core  

Comparative analysis of different preparation methods of chalcogenide glasses: Molecular dynamics structure simulations

open access: yes, 2004
Two different preparation methods (liquid-quenching and evaporation) of chalcogenide glasses have been investigated by molecular dynamics simulations. Our particular aim was to determine how the structural changes occur due to the different preparation ...
J. Hegedüs   +7 more
core   +1 more source

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

open access: yesAdvanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim   +5 more
wiley   +1 more source

Quantification of nonlinear absorption in ternary As-Sb-Se chalcogenide glasses

open access: yes, 2018
In this article, we studied intensity dependent third order nonlinear optical response in ternary As40Sb7Se53 and As40Sb10Se50 chalcogenide glasses by employing nanosecond Z-scan technique.
Adarsh, K. V.   +6 more
core   +1 more source

Dynamics at the crystal-melt interface in a supercooled chalcogenide liquid near the glass transition. [PDF]

open access: yes, 2020
Direct quantitative measurements of nanoscale dynamical processes associated with structural relaxation and crystallization near the glass transition are a major experimental challenge.
Fluerasu, Andrei   +7 more
core   +1 more source

Neodymium Doped Chalcogenide Glass Fibre Laser [PDF]

open access: yesTechnical Digest CLEO/Pacific Rim '97 Pacific Rim Conference on Lasers and Electro-Optics, 2005
We report on laser action in a Neodymium doped Gallium Lanthanum Sulphide glass fibre. Laser action at 1080nm was obtained in a 22mm long multimode glass fibre with a neodymium doped core, fabricated by the rod-in-tube technique. The laser was pumped continuous wave with a Ti:sapphire laser at 815nm and showed a self-pulsing behaviour.
Samson, B.N.   +4 more
openaire   +2 more sources

Sulfide‐Based Electrolytes for All‐Solid‐State Sodium Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This review covers the structural features and synthesis strategies of sulfide‐based solid electrolytes, as well as critical challenges related to conductivity, interfacial and moisture stability, and scaling‐up for practical application in Sodium‐based All Solid‐State Batteries.
Han Yang   +6 more
wiley   +1 more source

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