A nacre-inspired, centimetre-sized bulk material is prepared by assembling graphene oxide and microscale amorphous/crystalline heterophase reinforcing platelets adhered together with polymer-based crosslinkers, which shows high flexural strength and fracture toughness. ...
Herein, a microwave irradiation strategy is developed to construct reduced graphene oxide supported crystalline Ni 2 P/amorphous FePO x heterostructure (Ni 2 P/FePO x /RGO) as an efficient OER electrocatalyst. The formation of this heterostructure can induce electron redistribution, optimize adsorption...
Here, inspired by the amorphous/crystalline feature of the heterophase within nacreous platelets, we present a centimetre-sized, GO-based bulk material consisting of building blocks of GO and amorphous/crystalline leaf-like MnO2 hexagon nanosheets adhered together with polymer-based crosslinkers. These ...
Graphene was deposited onto a glass substrate. The ultrathin layer is but one atomic layer thick (0.3 Angström, or 0.03 nanometers), although charge carriers are able to move about freely within this layer. This property is retained even if the graphene layer is covered with amorphous or p...
van der Waals epitaxy of CdS thin films on single-crystalline graphene. van der Waals epitaxy (vdWE) of three-dimensional CdS thin films on both single-crystalline graphene/Cu(111)/spinel(111) and single-crystalline graphene/Si... X Sun,Z Lu,W Xie,... - 《Applied Physics Letters》 被...
However, the solution processing of perovskite solar cells directly onto the textured front surface of high-efficiency amorphous/crystalline silicon heterojunction cells is the main bottleneck. Our simple two-terminal mechanical stacking of the sub-cells helps achieve highly performant PV devices. Its ...
’s mobility is a decent 100 or so centimeters squared per volt second (cm 2 /vs). That’s well below the 1400 cm 2 /vs mobility of crystalline silicon, but it’s better than the number for amorphous silicon and many other ultrathin semiconductors be- ...
implemented by commercial devices, like Thermo Fisher Scientific Vitrobot, Gatan CP3 or Leica GP. In the most popular practice, a small volume of liquid solution containing macromolecules is applied to a metal grid covered with a thin layer of holey amorphous carbon film that is glow- ...
Wu, T. et al. Fast growth of inch-sized single-crystalline graphene from a controlled single nucleus on Cu-Ni alloys.Nat. Mater.15, 43–47 (2016). ArticleCASGoogle Scholar Luo, D. et al. Adlayer-free large-area single crystal graphene grown on a Cu(111) foil.Adv. Mater.31, 1903615...
Raman spectroscopy was then utilized to determine the type of carbon that is present, e.g., graphene, graphite or amorphous carbon. Figure 2b shows the Raman spectrum that was acquired on the tip surface of the CVD-coated wire cathode. Three characteristic peaks are clearly observed: a D ...