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We synthesized three-dimensional nanoporous graphene films by a chemical vapor deposition method with nanoporous copper as a catalytic substrate. The resulting nanoporous graphene has the same average pore size as the underlying copper…

Materials Science · Physics 2015-04-20 Zhiqiang Tu , Shangfei Wu , Fan Yang , Yongfeng Li , Liqiang Zhang , Hongwen Liu , Hong Ding , Pierre Richard

The ability to protect refined metals from reactive environments is vital to many industrial and academic applications. Current solutions, however, typically introduce several negative effects, including increased thickness and changes in…

High-quality nitrogen-doped graphene on nickel is prepared by exploiting both the catalytic properties of nickel and the solubility of nitrogen atoms into its bulk. Following the standard chemical vapor deposition procedure, a previously…

Few-layer graphene (FLG) is grown on copper and nickel substrates at high rates using a novel flame synthesis method in open-atmosphere environments. Transmittance and resistance properties of the transferred films are similar to those…

Non-conventional epitaxial techniques, such as van der Waals epitaxy (vdWE) and remote epitaxy, have attracted substantial attention in the semiconductor research community for their capability to repeatedly produce high-quality…

Hydrogenation of graphene on the \alpha-quartz (0001) SiO_2 substrate is studied, considering different surface terminations in order to take into account the amorphic nature of the material. Our ab initio calculations show that the…

Mesoscale and Nanoscale Physics · Physics 2012-01-16 P. Havu , M. Ijäs , A. Harju

Graphene stands as a promising material with vast potential across energy storage, electronics, etc. Here, we present a novel mechanical approach utilizing ultrasonic high-energy intercalation exfoliation to extract monolayer graphene from…

Materials Science · Physics 2025-01-15 Kaitong Sun , Si Wu , Junchao Xia , Yinghao Zhu , Guanping Xu , Hai-Feng Li

We have demonstrated a method to disperse and exfoliate graphite to give graphene suspended in water-surfactant solutions. Optical characterisation of these suspensions allowed the partial optimisation of the dispersion process.…

Materials Science · Physics 2008-09-17 Y Hernandez , M Lotya , V Nicolosi , FM Blighe , S De , G Duesberg , JN Coleman

We report graphene films composed mostly of one or two layers of graphene grown by controlled carbon precipitation on the surface of polycrystalline Ni thin films during atmospheric chemical vapor deposition(CVD). Controlling both the…

The outstanding electrical and mechanical properties of graphene make it very attractive for several applications, Nanoelectronics above all. However a reproducible and non destructive way to produce high quality, large-scale area, single…

Mesoscale and Nanoscale Physics · Physics 2015-12-11 Marco Piazzi , Luca Croin , Ettore Vittone , Giampiero Amato

The current method of growing large-area graphene on Cu surfaces (polycrystalline foils and thin films) and its transfer to arbitrary substrates is technologically attractive. However, the quality of graphene can be improved significantly…

Materials Science · Physics 2011-03-21 Kongara M. Reddy , Andrew D. Gledhill , Chun-Hu Chen , Julie M. Drexler , Nitin P. Padture

Direct growth of flat micrometer-sized bilayer graphene islands in between molybdenum disulfide sheets is achieved by chemical vapor deposition of ethylene at about 800 {\deg}C. The temperature assisted decomposition of ethylene takes place…

The interaction between graphene and metals represents an important issue for the large-area preparation of graphene, graphene transfer and the contact quality in graphene devices. We demonstrate a simple method for estimating and…

Materials Science · Physics 2023-03-06 Sara D. Costa , Johan Ek Weis , Otakar Frank , Martin Kalbac

Graphene growth by chemical vapor deposition has received a lot of attention recently owing to the ease with which large area films can be grown, but growth of large domain or equivalently large grain size has not been reported yet. In this…

Materials Science · Physics 2010-10-20 Xuesong Li , Carl W. Magnuson , Archana Venugopal , Eric M. Vogel , Rodney S. Ruoff , Luigi Colombo

Understanding the competition between first-layer lateral expansion and second-layer nucleation is essential for layer-controlled graphene growth via chemical vapor deposition (CVD). Building on our previous phase diagram framework based on…

Materials Science · Physics 2026-05-21 Tongtong Wang , Ke Jin , Yishi Zhang , Dajun Shu

Graphene has been suggested as an ultimately thin functional coating for metallurgical alloys such as steels. However, even on pure iron (Fe), the parent phase of steels, growth of high quality graphene films remains largely elusive to…

The industrial realization of graphene has so far been limited by challenges related to the quality, reproducibility, and high process temperatures required to manufacture graphene on suitable substrates. We demonstrate that epitaxial…

Patterned graphene shows substantial potential for applications in future molecular-scale integrated electronics. Environmental effects are a critical issue in a single layer material where every atom is on the surface. Especially…

The practical difficulties to use graphene in microelectronics and optoelectronics is that the available methods to grow graphene are not easily integrated in the mainstream technologies. A growth method that could overcome at least some of…

As undesirable defects, grain boundaries (GBs) are widespread in epitaxial graphene using existing growth methods on metal substrates. Employing density functional theory calculations, we first identify that the misorientations of carbon…

Materials Science · Physics 2015-06-03 Wei Chen , Hua Chen , Haiping Lan , Ping Cui , Tim P. Schulze , Wenguang Zhu , Zhenyu Zhang