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In this work we present a simple pathway to obtain large single-crystal graphene on copper (Cu) foils with high growth rates using a commercially available cold-wall chemical vapour deposition (CVD) reactor. We show that graphene nucleation…

Graphene has attracted a lot of research interests due to its exotic properties and a wide spectrum of potential applications. Chemical vapor deposition (CVD) from gaseous hydrocarbon sources has shown great promises for large-scale…

The fundamental properties of graphene are making it an attractive material for a wide variety of applications. Various techniques have been developed to produce graphene and recently we discovered the synthesis of large area graphene by…

We demonstrate rapid deterministic (seeded) growth of large single-crystals of graphene by chemical vapour deposition (CVD) utilising pre-patterned copper substrates with chromium nucleation sites. Arrays of graphene single-crystals as…

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…

We report high room-temperature mobility in single layer graphene grown by Chemical Vapor Deposition (CVD) after wet transfer on SiO$_2$ and hexagonal boron nitride (hBN) encapsulation. By removing contaminations trapped at the interfaces…

We report that graphene films with thickness ranging from 1 to 7 layers can be controllably synthesized on the surface of polycrystalline copper by a chemical vapour deposition method. The number of layers of graphene is controlled…

Chemical Vapor Deposition (CVD) of graphene on copper is one of the most efficient technologies for producing high quality graphene for large areas. Nevertheless, still high pressures and big quantities of precursor gas are currently…

材料科学 · 物理学 2014-09-18 V-M. Freire , A. Ramirez , E. Pascual , E. Bertran , J-L. Andujar

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 discovery of graphene, a single layer of covalently bonded carbon atoms, has attracted intense interests. Initial studies using mechanically exfoliated graphene unveiled its remarkable electronic, mechanical and thermal properties.…

材料科学 · 物理学 2013-07-23 Ting Fung Chung , Tian Shen , Helin Cao , Luis A. Jauregui , Wei Wu , Qingkai Yu , David Newell , Yong P. Chen

By limiting the carbon segregation at the copper surface defects, a pulsed chemical vapor deposition method for single layer graphene growth is shown to inhibit the formation of few-layer regions, leading to a fully single-layered graphene…

We have used Low Energy Electron Microscopy (LEEM) and Photo Emission Electron Microscopy (PEEM) to study and improve the quality of graphene films grown on Ir(111) using chemical vapor deposition (CVD). CVD at elevated temperature already…

Chemical vapor deposition (CVD) has been proposed for large-scale graphene synthesis for practical applications. However, the inferior electronic properties of CVD graphene are one of the key problems to be solved. In this study, we present…

介观与纳米尺度物理 · 物理学 2016-06-01 Shaohua Xiang , Vaidotas Miseikis , Luca Planat , Stefano Guiducci , Stefano Roddaro , Camilla Coletti , Fabio Beltram , Stefan Heun

We evaluate how a second graphene layer forms and grows on Cu foils during chemical vapor deposition (CVD). Low-energy electron diffraction and microscopy is used to reveal that the second layer nucleates and grows next to the substrate,…

材料科学 · 物理学 2015-06-04 Shu Nie , Wei Wu , Shirui Xing , Qingkai Yu , Jiming Bao , Shin-shem Pei , Kevin F. McCarty

Emerging flexible and wearable technologies such as healthcare electronics and energy-harvest devices could be transformed by the unique properties of graphene. The vision for a graphene-driven industrial revolution is motivating intensive…

材料科学 · 物理学 2015-06-30 Thomas H. Bointon , Matthew D. Barnes , Saverio Russo , Monica F. Craciun

Chemical vapor deposition (CVD) is an important method to synthesis grapheme on a substract. Recently, Cu becomes the most popular CVD substrate for graphene growth. Here, we combine electronic structure calculation, molecular dynamics…

材料科学 · 物理学 2011-09-14 Wenhua Zhang , Ping Wu , Zhenyu Li , Jinlong Yang

This work reports the peculiar properties of a graphene film prepared by the chemical vapor deposition (CVD) of ethylene in high vacuum on a well oriented and carefully cleaned Pt(111) crystal surface maintained at high temperature. In-situ…

介观与纳米尺度物理 · 物理学 2015-06-15 E. Cazzanelli , T. Caruso , M. Castriota , A. R. Marino , A. Politano , G. Chiarello , M. Giarola , G. Mariotto

A bottom-up chemical vapor deposition (CVD) process for the growth of graphene nanomesh films is demonstrated. The process relies on silicon nanospheres to block nucleation sites for graphene CVD on copper substrates. These spheres are…

材料科学 · 物理学 2016-09-16 Matthias König , Günther Ruhl , Joerg-Martin Batke , Max C. Lemme

Steeping interest on graphene research in basic sciences and applications emphasizes the need for an economical means of synthesizing it. We report a method for the synthesis of graphene on commercially available stainless steel foils using…

介观与纳米尺度物理 · 物理学 2011-09-22 Robin John , A Ashokreddy , C Vijayan , T Pradeep

A high temperature for some catalytic reactions like synthesis of large area and high quality graphene is required. The mentioned graphene can be obtained by a chemical vapour deposition (CVD) process on copper foil at 800 1000. Here, we…

材料科学 · 物理学 2016-08-15 Morteza Hajian , Mehdi Zareie , Davood Hashemian , Mohammad bahrami
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