Title |
Controlling Hydrogenation of Graphene on Ir(111)
|
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Published in |
ACS Nano, April 2013
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DOI | 10.1021/nn400780x |
Pubmed ID | |
Authors |
Richard Balog, Mie Andersen, Bjarke Jørgensen, Zeljko Sljivancanin, Bjørk Hammer, Alessandro Baraldi, Rosanna Larciprete, Philip Hofmann, Liv Hornekær, Silvano Lizzit |
Abstract |
Combined fast X-ray photoelectron spectroscopy and density functional theory calculations reveal the presence of two types of hydrogen adsorbate structures at the graphene/Ir(111) interface, namely, graphane-like islands and hydrogen dimer structures. While the former give rise to a periodic pattern, dimers tend to destroy the periodicity. Our data reveal distinctive growth rates and stability of both types of structures, thereby allowing one to obtain well-defined patterns of hydrogen clusters. The ability to control and manipulate the formation and size of hydrogen structures on graphene facilitates tailoring of its properties for a wide range of applications by means of covalent functionalization. |
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Researcher | 19 | 15% |
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Student > Master | 11 | 9% |
Student > Bachelor | 8 | 6% |
Other | 24 | 19% |
Unknown | 8 | 6% |
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Unspecified | 2 | 2% |
Other | 1 | <1% |
Unknown | 14 | 11% |