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Researchers from National Tsing Hua University Detail Findings in General Science (In situ observation of step-edge in-plane growth of graphene in a...

August 15, 2014



Researchers from National Tsing Hua University Detail Findings in General Science (In situ observation of step-edge in-plane growth of graphene in a STEM)

By a News Reporter-Staff News Editor at Science Letter -- Investigators publish new report on Science. According to news originating from Hsinchu, Taiwan, by NewsRx correspondents, research stated, "It is extremely difficult to control the growth orientation of the graphene layer in comparison to Si or III-V semiconductors. Here we report a direct observation of graphene growth and domain boundary formation in a scanning transmission electron microscope, with residual hydrocarbon in the microscope chamber being used as the carbon source for in-plane graphene growth at the step-edge of bilayer graphene substrate."

Our news journalists obtained a quote from the research from National Tsing Hua University, "We show that the orientation of the growth is strongly influenced by the step-edge structure and areas grown from a reconstructed 5-7 edge are rotated by 30 degrees with respect to the mother layer. Furthermore, single heteroatoms like Si may act as catalytic active sites for the step-edge growth."

According to the news editors, the research concluded: "The findings provide an insight into the mechanism of graphene growth and defect reconstruction that can be used to tailor carbon nanostructures with desired properties."

For more information on this research see: In situ observation of step-edge in-plane growth of graphene in a STEM. Nature Communications, 2014;5():154-160. Nature Communications can be contacted at: Nature Publishing Group, Macmillan Building, 4 Crinan St, London N1 9XW, England. (Nature Publishing Group - www.nature.com/; Nature Communications - www.nature.com/ncomms/)

The news correspondents report that additional information may be obtained from Z. Liu, Natl Tsing Hua Univ, Dept. of Elect Engn, Hsinchu 30013, Taiwan. Additional authors for this research include Y.C. Lin, C.C. Lu, C.H. Yeh, P.W. Chiu, S. Iijima and K. Suenaga (see also Science).

Keywords for this news article include: Asia, Taiwan, Hsinchu, Science

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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