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Experimental

Experimental. Al 2 O 3 - Bandgap opening of bilayer graphene High breakdown voltage but operating voltage is limited by leakage current (~5V). 1L. 2L. 3L. Experimental. Al 2 O 3 - Bandgap opening of bilayer graphene Preheating temperature 200 ˚ C → 160 ˚C:

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Experimental

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  1. Experimental Al2O3 - Bandgapopening of bilayer graphene High breakdown voltage but operating voltage is limited by leakage current (~5V) 1L 2L 3L

  2. Experimental Al2O3 - Bandgapopening of bilayer graphene Preheating temperature 200 ˚C → 160 ˚C: Improving coating quality, increases breakdown voltage at thinner films

  3. Experimental Al2O3 - Bandgapopening of bilayer graphene Reduce PEG quantity 40 mg/ml → 20 mg/ml Finally reduces leakage current density (Further reducing to 10 mg/ml reduces film capacitance from 1.2 nF to 400pF)

  4. Experimental HfO2 – additional data XRD – HfO2 maintains amorphous phase up to 400 ˚C It is known that HfO2 crystallizes at 450 ~ 500 ˚C

  5. Experimental BaTiO3-PVDF nanocomposite Surface treatment by phosphonic acid (x) → by H2O2 BaTiO3 NP + H2O2 Reflux at 106 ˚C, 12 hrs Centrifuge, Baking at 80 ˚C, 6 hrs Dispersion in DMF PVDF addition High loading nanocomposite (~30%) with simple method Some glass components are require for reflux

  6. Experimental Future works Reflux device setup HfO2 – XPS ZTO – currently have I-V, XPS, TG-DTA MS-related experiment (Alkyl halide inspection) 4. ITO – NMR using 2-ME isotope

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