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Shahana Chatterjee
다차원 탄소재료 연구단
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Synthesis of Highly Oriented Graphite Films with a Low Wrinkle Density and Near-Millimeter-Scale Lateral Grains

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Title
Synthesis of Highly Oriented Graphite Films with a Low Wrinkle Density and Near-Millimeter-Scale Lateral Grains
Author(s)
Shahana Chatterjee; Na Yeon Kim; Pugno N.M.; Mandakini Biswal; Benjamin V. Cunning; Min Goo; Sunghwan Jin; Sun Hwa Lee; Zonghoon Lee; Rodney S. Ruoff
Publication Date
2020-04
Journal
CHEMISTRY OF MATERIALS, v.32, no.7, pp.3134 - 3143
Publisher
AMER CHEMICAL SOC
Abstract
© 2020 American Chemical Society.Principal defects found in graphite films include grain boundaries and wrinkles. These defects are well known to have detrimental effects on properties such as thermal and electrical conductivities as well as mechanical properties. With a two-fold objective of synthesizing graphite films with large single crystal grains and no wrinkles, we have developed a relatively lowerature (<1150 °C) process that involves the precipitation of graphite films from nickel-carbon solid solutions followed by in-situ etching of the nickel foil substrates with anhydrous chlorine gas to obtain near wrinkle-free continuous graphite films. The size (La) distribution of lateral grains (or single crystal regions) in these highly oriented graphite films has been found to be asymmetric with the largest grains about 0.9 mm in diameter, as determined by electron backscatter diffraction (EBSD). Thus, the growth of large-area graphite films with grains much larger than those reported for highly oriented pyrolytic graphite (HOPG, â¼20 to 30 μm), and with a low density of wrinkles, as in the case of HOPG, but prepared at much lower temperatures, is reported here
URI
https://pr.ibs.re.kr/handle/8788114/7132
ISSN
0897-4756
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > Journal Papers (저널논문)
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