Results 71 to 80 of about 4,739 (252)

Flicker Noise in Bilayer Graphene Transistors

open access: yes, 2008
We present the results of the experimental investigation of the low - frequency noise in bilayer graphene transistors. The back - gated devices were fabricated using the electron beam lithography and evaporation.
Balandin, A. A.   +6 more
core   +1 more source

Optical Skyrmions with Tunable or Reconfigurable Topology Using Spin‐Decoupled Metaoptics

open access: yesLaser &Photonics Reviews, EarlyView.
The work introduces advanced optical elements capable of generating and dynamically reconfiguring complex light patterns known as optical skyrmions. By precisely shaping light polarization at the nanoscale, a single engineered metasurface can generate and manipulate robust and tunable polarization textures in an efficient and scalable way.
Andrea Vogliardi   +5 more
wiley   +1 more source

Bioaffinity detection of pathogens on surfaces [PDF]

open access: yes, 2010
The demand for improved technologies capable of rapidly detecting pathogens with high sensitivity and selectivity in complex environments continues to be a significant challenge that helps drive the development of new analytical techniques. Surface-based
Faisal, S. N.   +4 more
core   +1 more source

Lanthanide‐Doped NaGdF4 Nanoparticles as Versatile Luminescent Labels for Cathodoluminescence Mapping

open access: yesphysica status solidi (b), EarlyView.
This study presents a synthesis method for lanthanide‐doped NaGdF4 particles in an aqueous environment. Clearly distinct cathodoluminescence (CL) spectra were observed for europium‐ and thulium‐doped nanoparticles, stable for up to 100 s of excitation time.
Jörgen Jungclaus   +5 more
wiley   +1 more source

Analytical and Electrochemical Characterization of Mechanochemically Recovered Graphite from Spent Lithium‐Ion Batteries for Anode Additive Applications

open access: yesAdvanced Sustainable Systems, Volume 10, Issue 2, February 2026.
We introduce a new, energy efficient chemical treatment to recover graphite from Li‐ion battery waste. The graphite recovered this way can be re‐introduced in shares up to 50% in new anodes without neither capacity loss nor increased aging effects compared to “fresh” graphite.
Slaheddine Jabri   +9 more
wiley   +1 more source

Mueller Matrix Ellipsometric Approach on the Imaging of Sub-Wavelength Nanostructures

open access: yesFrontiers in Physics, 2022
Conventional spectroscopic ellipsometry is a powerful tool in optical metrology. However, when it comes to the characterization of non-periodic nanostructures or structured fields that are much smaller than the illumination spot size, it is not well ...
Tim Käseberg   +10 more
doaj   +1 more source

Size-selective nanoparticle growth on few-layer graphene films

open access: yes, 2010
We observe that gold atoms deposited by physical vapor deposition onto few layer graphenes condense upon annealing to form nanoparticles with an average diameter that is determined by the graphene film thickness.
Adam S.   +18 more
core   +2 more sources

The next generation of advanced spectroscopy : surface enhanced raman scattering from metal nanoparticles [PDF]

open access: yes, 2010
Surface enhanced Raman scattering (SERS) has enjoyed an ever growing research base since its discovery with the number of papers published using the technique and investigating the basis behind it growing exponentially year by year.[1] SERS is an ...
Graham, Duncan
core   +1 more source

Nanometrology and super-resolution imaging with DNA [PDF]

open access: yesMRS Bulletin, 2017
Abstract
Graugnard, Elton   +5 more
openaire   +5 more sources

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