Results 21 to 30 of about 589,919 (368)

Graphene–Graphene Interactions: Friction, Superlubricity, and Exfoliation [PDF]

open access: yesAdvanced Materials, 2018
AbstractGraphite's lubricating properties due to the “weak” interactions between individual layers have long been known. However, these interactions are not weak enough to allow graphite to readily exfoliate into graphene on a large scale. Separating graphite layers down to a single sheet is an intense area of research as scientists attempt to utilize ...
Robert C. Sinclair   +2 more
openaire   +2 more sources

Applications of Raman spectroscopy in graphene-based polymer nanocomposites

open access: yesCailiao gongcheng, 2020
Raman spectroscopy is well-known for its capability of detecting the physical properties, level of defects and number of layers for graphene-based materials, but far more than that, it's proven to be a versatile and promising tool for characterizing ...
HAO Si-jia   +6 more
doaj   +1 more source

Water friction in nanofluidic channels made from two-dimensional crystals

open access: yesNature Communications, 2021
Flow through nanometer scale channels facilitates an unmasked study of water-surface molecular interactions. Here, Keerthi et al. show with conduits made from graphite and hexagonal boron nitride that strong hydrophobicity does not rule out enhanced ...
Ashok Keerthi   +6 more
doaj   +1 more source

Weak mismatch epitaxy and structural feedback in graphene growth on copper foil [PDF]

open access: yes, 2013
Graphene growth by low-pressure chemical vapor deposition on low cost copper foils shows great promise for large scale applications. It is known that the local crystallography of the foil influences the graphene growth rate.
Wilson, Neil R.   +30 more
core   +1 more source

Review and recent development of lithium-sulfur batteries

open access: yesJournal of Aeronautical Materials, 2022
Lithium-sulfur battery is a kind of energy storage system with high specific capacity, low production cost and environmental friendliness. It has great development potential and application prospect in portable electronic device energy storage.
YAN Shaojiu   +6 more
doaj   +1 more source

Efficient phonon cascades in WSe2 monolayers

open access: yesNature Communications, 2021
The primary stages of carrier relaxation in atomically thin transition metal dichalcogenides are hardly accessible due to their fast timescales. Here, the authors measure the first stages of carrier–phonon interaction in monolayer WSe2 via a series of ...
Ioannis Paradisanos   +7 more
doaj   +1 more source

Investigations of Vacancy Structures Related to Their Growth in h-BN Sheet

open access: yesNanoscale Research Letters, 2017
The atomic, electronic, and magnetic properties of vacancy structures with triangular shape related to their growth in single hexagonal boron nitride (h-BN) sheet are investigated using density functional theory calculations.
Junga Ryou, Jinwoo Park, Suklyun Hong
doaj   +1 more source

Graphene nanoplatelets in epoxy system: dispersion, reaggregation, and mechanical properties of nanocomposites [PDF]

open access: yes, 2015
The use of graphene nanocomposites in advanced applications has attracted much attention in recent years. However, in order to substitute traditional epoxy reinforcements with graphene, there are still some issues like dispersion, homogenization, and ...
Wei, Jiacheng   +3 more
core   +1 more source

Graphene Reinforced Aluminum Matrix Nanocomposites

open access: yesJournal of Aeronautical Materials, 2016
Graphene materials with excellent mechanical and physical properties as well as two-dimensional flexible morphology are ideal reinforcement nanofillers for aluminum matrix nanocomposites.
YAN Shaojiu   +9 more
doaj   +1 more source

Raman spectroscopy of graphene under ultrafast laser excitation [PDF]

open access: yesEPJ Web of Conferences, 2019
The out-of-equilibrium Raman response of graphene is addressed by pulsed laser excitation. Phonon spectrum is rationalized by revisiting the electron-phonon picture in the light of a transient broadening of the Dirac cone.
Ferrante Carino   +13 more
doaj   +1 more source

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