Highly impermeable and transparent graphene as an ultra-thin protection barrier for Ag thin films

Structural, morphological and optical properties of Ag–AgO thin films with the effect of increasing film thickness and annealing temperature

“…Raman mode shifts towards higher wave number at 234 cm À1 because of an increase of film thickness and the oxidation rate [12]. Raman modes observed at 230 and 234 cm À1 correspond to the stretching modes of Ag and O [29]. XRD confirms the formation of Ag structure while Raman study proves the oxidation of Ag films.…”

Multilayer graphene for long-term corrosion protection of stainless steel bipolar plates for polymer electrolyte membrane fuel cell

“…In addition, while they are investigating the properties of a single-layer graphene coating, here we propose to use a multilayer graphene film. This film is much thicker than single or fewlayer graphene coatings previously reported in literature [22,23], but still extremely thin if compared to standard, industrially available composite coatings [24e26]. This greatly minimises the influence on mechanical tolerances of coated items.…”

Keeping argon under a graphene lid—Argon intercalation between graphene and nickel(111)

“…Besides its 33 electronic structure, also the mechanical and chemical properties of 34 graphene are of interest: The atomic structure of graphene, that is, 35 close packed six membered rings of carbon atoms, is proposed to be 36 helium leak tight, and it was therefore suggested to be used as a gas bar-37 rier [9]. In this context, applications for gas containment, gas separation 38 [10][11][12], or protective coatings are discussed [13][14][15]. Gas separation 39 with modified graphene membranes was proposed to allow helium 40 separation from other gases, and helium isotope separation [16,17].…”

“…Furthermore, up to now, 70 researchers mostly used either graphene prepared with the scotch 71 tape method [9], transferred graphene (which was grown on other sub-72 strates) [13], or graphene grown at high pressures in inert atmosphere Herein, we report on the intercalation of argon under a graphene 77 layer on Ni(111). Using a surface science approach that allows for The sample was prepared in the following way: It was sputtered at In Fig.…”