期刊
NANO LETTERS
卷 17, 期 3, 页码 1711-1718出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.6b04989
关键词
Graphene; transparency; ZnO nanorod; hydrothermal growth; lattice
类别
资金
- Korea Research Council of Fundamental Science and Technology - Ministry of Science, ICT and Future Planning [CAP-12-1]
- Focused Research Program - KRICT
- Next-generation Medical Device Development Program for the Newly Created Market of the National Research Foundation (NRF) - Korean government, MSIP [NRF-2015M3D5A1065907]
- National Research Council of Science & Technology (NST), Republic of Korea [CAP-12-1] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Here, we demonstrated the transparency of graphene to the atomic arrangement of a substrate surface, i.e., the lattice transparency of graphene, by using hydrothermally grown ZnO nanorods as a model system. The growth behaviors of ZnO nanocrystals on graphene-coated and uncoated substrates with various crystal structures were investigated. The atomic arrangements of the nucleating ZnO nanocrystals exhibited a close match with those of the respective substrates despite the substrates being bound to the other side of the graphene. By using first-principles calculations based on density functional theory, we confirmed the energetic favorability of the nucleating phase following the atomic arrangement of the substrate even with the graphene layer present in between. In addition to transmitting information about the atomic lattice of the substrate, graphene also protected its surface. This dual role enabled the hydrothermal growth of ZnO nanorods on a Cu substrate, which otherwise dissolved in the reaction conditions when graphene was absent.
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