| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
The aim of our study is to develop the synthesis process of the multilayer graphene nanoribbon (multi-GNR) which is expected as excellent channel materials in the field effect transistors (FETs). In order to achieve the purpose, chemical vapor deposition (CVD) is used for synthesis of the multi-GNRs on the double-layers GNR prepared by unzipping method as a template. Structural analysis for the same GNR before/after CVD growth using Raman spectroscopy reveals that the grown graphene layers have a turbostratic structure. We also observed that the ON current (~600 nA) evaluated from the FETs with the grown GNR channel is larger than that (~100 nA) valuated from the FETs with the pristine GNR channel. This indicates that the grown graphene layers contributes to an additional channel pass including the pristine GNR as a template, and is a significant result that the electrical transport properties of the multi-GNRs are experimentally observed for the first time.
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