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In this review we discuss spin and charge transport properties in graphene-based single-layer and few-layer spin-valve devices. We give an overview of challenges and recent advances in the field of device fabrication and discuss two of our…

Mesoscale and Nanoscale Physics · Physics 2016-02-24 F. Volmer , M. Drögeler , G. Güntherodt , C. Stampfer , B. Beschoten

Integrated waveguide polarizers and polarization-selective micro-ring resonators (MRRs) incorporated with graphene oxide (GO) films are experimentally demonstrated. CMOS-compatible doped silica waveguides and MRRs with both uniformly coated…

We investigate diffusion of a peptide drug through Graphene Oxide (GO) membranes that are modeled as a porous layered laminate constructed from aligned flakes of GO. Our experiments using a peptide drug show a tunable non-linear dependence…

Materials Science · Physics 2015-12-29 T. M. Puvirajesinghe , Z. L. Zhi , R. V. Craster , S. Guenneau

Graphene oxide (GO) raised substantial interest in the last two decades thanks to its unique properties beyond those of pristine graphene, including electronic energy band-gap, hydrophilic behavior and numerous anchoring sites required for…

Applied Physics · Physics 2021-04-07 O. Seri-Livni , C. Saguy , F. Horani , E. Lifshitz , D. Cheskis

Graphene oxide (GO) is one of chemically modified graphenes and has been extensively investigated worldwide. A monolayer sheet of GO can be chemically produced in solution and it has been expected to be adaptable to a wide variety of…

Materials Science · Physics 2011-02-11 Yoshio Kanamori , Seiji Obata , Koichiro Saiki

In this paper, 6 different reduced graphene oxide (rGO) were prepared by a modified Hummers method and reduced by thermochemical methods. rGO materials were intentionally prepared to obtain different BET and thickness and oxygen content…

Materials Science · Physics 2018-04-26 Julio Gómez , Elvira Villaro , Ana Navas , Imanol Recio

We investigate the carrier mobility in mono- and bi-layer graphene with a top HfO2 dielectric, as a function of the HfO2 film thickness and temperature. The results show that the carrier mobility decreases during the deposition of the first…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Babak Fallahazad , Seyoung Kim , Luigi Colombo , Emanuel Tutuc

Symmetry-breaking phase transitions analogous to superconductivity (SC), charge ordering (CO) etc. in metal-intercalated graphene are favorable resulting from modified electronic and phonon band structures. Strong carrier-lattice…

With a swift progress in modern high-throughput communication systems, security, sensing and medicine utilizing THz range technologies, the demand for easy-to-fabricate, lightweight and high-performance absorbing materials has increased…

Materials Science · Physics 2025-07-30 A. Vasilev , M. Zhezhu , H. Parsamyan , G. Baghdasaryan , M. Sargsyan , D. A. Ghazaryan , H. Gharagulyan

We perform a density functional theory study of the effects of oxygen adsorption on the structural and electronic properties of Gr/Co(0001) and Gr/Co/Ir(111) interfaces. In both interfaces, the graphene-Co distance increases with increasing…

Materials Science · Physics 2022-08-05 Dario A. Leon , Andrea Ferretti , Daniele Varsano , Elisa Molinari , Claudia Cardoso

Nonlinear optical phenomena play a critical role in understanding microscopic light-matter interactions and have far-reaching applications across various fields, such as biosensing, quantum information, optical switching, and all-optical…

Large variety of structure and chemical-composition of reduced graphene oxide (RGO) is explained from a quantum-chemical standpoint. The related molecular theory of graphene oxide, supported by large experience gained by the modern graphene…

Materials Science · Physics 2016-11-10 Elena F. Sheka

The present work reports the effect of adding Graphene Oxide (GO) and reduced Graphene Oxide (rGO) in the corrosion protection provided by a water-borne resin applied on a galvanized steel substrate. Three concentrations, 0.05, 0.1 and 0.15…

Materials Science · Physics 2024-01-30 A. Collazo , B. Díaz , R. Figueroa , X. R. Nóvoa , C. Pérez

The electronic and transport properties of aluminum-graphene composite materials were investigated using ab initio plane wave density functional theory. The interfacial structure is reported for several configurations. In some cases, the…

Materials Science · Physics 2024-02-12 K. Nepal , C. Ugwumadu , K. N. Subedi , K. Kappagantula , D. A. Drabold

Integrated photonic devices operating via optical nonlinearities offer a powerful solution for all optical information processing, yielding processing speeds that are well beyond that of electronic processing as well as providing the added…

Optics · Physics 2023-01-06 David J. Moss

Graphene Oxide and reduced Graphene Oxide are intriguing materials for photonics and electronic devices both for intrinsic characteristics and as precursors for the synthesis of graphene. Whatever the application and the engineering…

With superior optical properties, high flexibility in engineering its material properties, and strong capability for large-scale on-chip integration, graphene oxide (GO) is an attractive solution for on-chip integration of two-dimensional…

Optics · Physics 2021-02-16 Jiayang Wu , Linnan Jia , Yuning Zhang , Yang Qu , Baohua Jia , David J. Moss

Low-density, highly porous graphene/graphene oxide (GO) based-foams have shown high performance in energy absorption applications, even under high compressive deformations. In general, foams are very effective as energy dissipative…

Water transport through graphene-derived membranes has gained much interest recently due to its promising potential in filtration and separation applications. In this work, we explore water permeation in graphene oxide membranes using…

Mesoscale and Nanoscale Physics · Physics 2014-06-05 Ning Wei , Xinsheng Peng , Zhiping Xu

Graphene oxide is a rising star among 2D materials, yet its interaction with liquid water remains a fundamentally open question: experimental characterization at the atomic scale is difficult, and modelling by classical approaches cannot…

Materials Science · Physics 2020-03-27 Félix Mouhat , François-Xavier Coudert , Marie-Laure Bocquet