Growth of bilayer graphene with various orientation angles using high degree reduction of graphene oxide and its structural analysis
| Project/Area Number |
15K17439
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nanomaterials chemistry
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Obata Seiji 東京大学, 大学院新領域創成科学研究科, 特任助教 (90616244)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | グラフェン / 酸化グラフェン / プラズマ |
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| Outline of Final Research Achievements |
I tried to synthesize bilayer graphene with various orientation angles on insulators and improve the crystallinity of graphene made from graphene oxide(GO).Using high degree reduction of GO I had developed, I achieved high throughput synthesis of bilayer graphene on SiO2 substrate. Due to the weak interaction between GO and graphene, synthesized bilayer graphene sheets have various orientation angles. Furthermore, I found that changing the flow rate of the gases improved crystallnity of graphene in the high degree reduction method. In addition, using a tungsten filament heated to around 2000℃, instead of Cu catalysts and plasma treatment, growth temperature of graphene markedly decreased to 380℃. I also revealed the mechanism of the restoration and reduction process of GO by in-situ conductivity measurement.
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Report
(4 results)
Research Products
(22 results)
