Scientists found a way to create nanopores in graphene using ions
The international research group with the scientists from the National University of Science and Technology “MISiS” found the way to create nanopores in graphene bombarding the material with high-speed ions. Further research will provide the ordered structure of pores making. Also, it will help create materials with new characteristics.
During the study, the two-dimensional carbon material was bombarded by high-energy ions set of different masses: carbon, oxygen, iodine, silicon, xenon, gold, tantalum ions. According to the measurements, under affection there were pores in graphene with a size up to 4 nm. The pores characteristics depended on the ions and energy used.
Nanopores in the graphene structure can change its characteristics. As a result, the scientists can create new materials, said Arkadij Krasheninnikov, the MISiS professor. «It is expected that with a regular spread of pores in graphene its spectrum will be reorganized into a semiconductor one. It will allow to use graphene in electronics,» the researcher explained. In addition, it is possible with the use of pores to create membranes for cleaning liquids and devices for studying nucleic acids.
The research results are published in Carbon. The research involved scientists from the University of Helsinki, Aalto University (Finland), University of Nottingham (the UK), University of Duisburg-Essen (Germany), University of Vienna, Center of Research on Ions Materials and Photonics «CIMAP»(France), Rudzher Boskovic Institute and GSI Helmholtz Centre for Heavy Ion Research (Germany).
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