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Title: Graphene layer formation at low substrate temperature on a metal and carbon based substrate

Abstract

A system and method for forming graphene layers on a substrate. The system and methods include direct growth of graphene on diamond and low temperature growth of graphene using a solid carbon source.

Inventors:
;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1417969
Patent Number(s):
9,875,894
Application Number:
14/563,201
Assignee:
UChicago Argonne, LLC (Chicago, IL) ANL
DOE Contract Number:
AC02-06CH11357
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Dec 08
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Sumant, Anirudha V., and Berman, Diana. Graphene layer formation at low substrate temperature on a metal and carbon based substrate. United States: N. p., 2018. Web.
Sumant, Anirudha V., & Berman, Diana. Graphene layer formation at low substrate temperature on a metal and carbon based substrate. United States.
Sumant, Anirudha V., and Berman, Diana. 2018. "Graphene layer formation at low substrate temperature on a metal and carbon based substrate". United States. doi:. https://www.osti.gov/servlets/purl/1417969.
@article{osti_1417969,
title = {Graphene layer formation at low substrate temperature on a metal and carbon based substrate},
author = {Sumant, Anirudha V. and Berman, Diana},
abstractNote = {A system and method for forming graphene layers on a substrate. The system and methods include direct growth of graphene on diamond and low temperature growth of graphene using a solid carbon source.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2018,
month = 1
}

Patent:

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  • A system and method for forming graphene layers on a substrate. The system and methods include direct growth of graphene on diamond and low temperature growth of graphene using a solid carbon source.
  • Disclosed is monolayer and/or few-layer graphene on metal or metal-coated substrates. Embodiments include graphene mirrors. In an example, a mirror includes a substrate that has a surface exhibiting a curvature operable to focus an incident beam onto a focal plane. A graphene layer conformally adheres to the substrate, and is operable to protect the substrate surface from degradation due to the incident beam and an ambient environment.
  • Described is an article comprising a biaxially textured metal substrate and a layer of palladium deposited on at least one major surface of the metal substrate; wherein the palladium layer has desired in-plane and out-of-plane crystallographic orientations, which allow subsequent layers that are applied on the article to also have the desired orientations.
  • The method described is stated to be particularly applicable in the manufacture of target electrodes for x-ray tubes, such electrodes comprising a W layer deposited on a refractory substrate. A solid metal oxide that shows enhanced volatility in the presence of water vapour is heated, and water vapour carried by an inert gas stream is passed over or through the heated oxide, the stream subsequently being mixed with a reducing gas in the neighbourhood of the heated substrate, resulting in the deposition of a layer of the metal on the aubstrate. The reducing gas is preferably H/sub 2/, and suitablemore » metals are W, Re, Mo, etc. If the metal oxide is tungstic oxide it should be heated to 1200 deg to 1400 deg C, and the substrate heated to about 1200 deg C. The inert gas stream may comprise N/sub 2/. The rate of deposition is determined by the gas flow rate and the time the gas spends in the vicinity of the metal oxide. The substrate may comprise W, Mo, or W--No alloy. The metal oxide may be replaced by the solid metal, in which case the gas may carry an oxidising agent for the metal; if the metal is W the water vapour may constitute the oxidising agent. (UK)« less
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