这种差异性可能来源于以下几种原因之一:(1)与机械剥离的石墨烯不同,化学气相沉积法(CVD)制备的石墨烯通常具有原子尺度的缺陷,促进了质子的渗透(见图1A);(2)水溶液或质子导体中的石墨烯通过化学吸附质子发生氢化作用(见图1B),使六元环...
Here, we study the influence of commonly used etching solvents during the transfer process, i.e. ammonium persulfate, ferric chloride, and ferric nitrate, on the properties of CVD graphene by Raman spectroscopy. Obvious blue shift and broadening of Raman G and 2D peaks were observed for ...
Rodriguez CLC, Kessler F, Dubey N, Rosa V, Fechine GJM. CVD graphene transfer procedure to the surface of stainless steel for stem cell proliferation. Surf Coat Technol 2017;311:10-8.Camila L.C. Rodriguez, Felipe Kessler, Nileshkumar Dubey, Vinicius Rosa, Guilhermino J.M. Fechine, CVD ...
The quality of CVD-grown graphene is limited by the parallel nucleation of grains from surface impurities which leads to increased grain boundary densities. Currently employed cleaning methods cannot completely remove surface impurities since impurity diffusion from the bulk to the surface occurs during ...
(TMDC), in particular few-layer WSe2.;Chapter 1 introduces the band structures of graphene and TMDC, as well as the novel physics and potential applications of both materials.;Chapter 2 describes the chemical vapor deposition (CVD) synthesis of graphene on copper using gaseous precursors of ...
Mono-, few-, and multilayer graphene is explored towards the electrochemical Hydrogen Evolution Reaction (HER). Careful physicochemical characterisation is undertaken during electrochemical perturbation revealing that the integrity of graphene is structu
The separation of chemical vapor deposited (CVD) graphene from the metallic catalyst it is grown on, followed by a subsequent transfer to a dielectric substrate, is currently the adopted method for device fabrication. Most transfer techniques use a chemical etching method to dissolve the metal catal...
graphene wrinklessite‐selective passivationwater impermeabilityIn article number 1800022, Jinsung Kwak, Soon‐Yong Kwon, and co‐workers demonstrate that water‐permeable routes concentrated on graphene wrinkles are predominantly induced by the delamination of graphene on Cu during the cooling stage, ...
1. Firstly, CVD monolayer graphene grown on a copper substrate was coated with poly(methyl methacrylate) (PMMA) film. The copper substrate was then etched completely using saturated K2S2O8 solution and HCl-H2O2-H2O (1:1:20) sequentially for 12 h. The resulting PMMA/MLG block was washed ...
electronics, but difficult to manufacture. Scientists at Linköping University, Sweden, have developed a new molecule that can be used to create high-quality indium nitride, making it possible to use it in, for example, high-frequency electronics. The results have been published inChemistry of ...