摘要
Silica (SiO2) islands with a dendritic structure were prepared on polycrystalline copper foil, using silane (SiH4) as a precursor, by annealing at high temperature. Assisted by copper vapor from bare sections of the foil, single-layer hexagonal graphene domains were grown directly on the SiO2 islands by chemical vapor deposition. Scanning electron microscopy, atomic force microscopy, Raman spectra, and X-ray photoelectron spectroscopy confirm that hexagonal graphene domains, each measuring several microns, were synthesized on the silica islands.
源语言 | 英语 |
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文章编号 | 023106 |
期刊 | Applied Physics Letters |
卷 | 109 |
期 | 2 |
DOI | |
出版状态 | 已出版 - 11 7月 2016 |
已对外发布 | 是 |