Ferroelectric gating of graphene 5

... over 50 - 350 K and 1012 cm−2 ranges (Fig 5. 5e and 5. 5f) [34] a c 12 e -2 2.0 x 10 cm , S1 -2 -2 12 -2 12 400 50 40 12 12 60 -2 2.0 x 10 cm , S2 200 400 20 2 .5 x 10 cm 100 -3 -4 -2 -1 12 150 200 250 ... γT /ne, and 70 SLG 16 B=9T T = 3 .5 K c e 1.8 SLG 60 1.6 40 -0.3 0.0 40 -3 60 d -8 20 VBG (V) 40 60 -2 12 -2 -2 3.8 (10 cm ) 0.2 0.4 50 150 250 -2 350 50 150 250 T (K) f BLG 400 BLG...

Ngày tải lên: 09/09/2015, 10:22

... 199 3 [5] S Iijima Helical microtubules of graphitic carbon Nature, 354:56, 199 1 [6] P R Wallace The band structure of graphite Phys Rev, 71:622, 194 7 [7] A K Geim and K S Novoselov The rise of ... potential research topics involving graphene and ferroelectric material 9. 3.1 Gate-tunable graphene -ferroelectric photonics Over the past seven years, the main focus of graphen...

Ngày tải lên: 09/09/2015, 10:18

... that we are using is ferroelectric copolymer P(VDF-TrFE) 31 a b Figure 3. 5: (a) Schematics of a graphene -ferroelectric p-n-p junctions; (b) Optical image of a graphene -ferroelectric p-n-p junction ... lattice [49, 50, 80] 30 3. 2 Fabrication of graphene field effect transistor GFET 3. 2.1 GFET devices using mechanically exfoliated graphene After graphene is transferr...

Ngày tải lên: 09/09/2015, 10:21

... 11 5 11 6 11 6 11 7 11 8 Bibliography 11 9 Publications 14 1 Patents 14 3 vii Acknowledgements Over my four-year Ph.D time, I would like to express my deep thanks to my advisor, ¨ Prof Barbaros ... 10 9 10 9 11 1 11 1 11 3 9.2.3 Can we achieve less than 10 0 Ω/2 sheet resistance in CVD graphene? 9.3 Future outlook 9.3 .1 Gate-tunable graphene -ferroelectric ... 12 12 1...

Ngày tải lên: 09/09/2015, 10:21

... Intensity (a.u.) a G P(VDF-TrFE) 1530 1 560 1590 162 0 165 0 Raman Shift (cm -1 ) 168 0 c 1.0 0.0 -1.0 -2.0 -1.0 -0.5 0.0 0.5 1.0 Voltage (V) Figure 6. 6: (a) XRD results of both P(VDF-TrFE) foil and house-produced ... excellent mechanical support for graphene (Fig 6. 3a) Fig 6. 3b shows the graphene- P(VDF-TrFE) hybrid structure on top of PET substrates The transmission spectra as...

Ngày tải lên: 09/09/2015, 10:21

... ferroelectric thin film of poly(vinylidene fluoride-trifluoroethylene) 44 Figure 4. 3: (a) Sample geometry of a finished graphene -ferroelectric memory device (b) Optical image of a graphene samples showing ... linear slope of the R vs VBG 45 Rmax R (k ) R/R>350% RPr Rmin -1 =700 cm V s -80 -40 V TG -1 40 80 (V) Figure 4. 4: Electric hysteresis loop; R as a function of VTG f...

Ngày tải lên: 09/09/2015, 10:22

... Cu-CVD graphene on PZT As shown in Fig 7. 1e, G peaks of Cu-CVD graphene on PZT show a noticeable red shift of ∼ 10 cm−1 and broadening of full width at half maximum (FWHM), compared to CVD graphene ... cm−2 (Fig 7. 2b and 7. 2c) This indicates the electron-hole puddle intensity of graphene on PZT is an order -of- magnitude higher than graphene on SiO2 The strong charge i...

Ngày tải lên: 09/09/2015, 10:22

... Fig 8. 7a Fig 8. 7b shows the pure PET substrate signal 1 08 (b) Transmittance Transmittance (a) Figure 8. 7: a: Optical transmittance of graphene as a function of strain and polarization angle of ... image of graphene sample after partially define HSQ layer (d) AFM image of graphene sample after P(VDF-TrFE) spin coating (e) R vs VBG of graphene samples before patterni...

Ngày tải lên: 09/09/2015, 10:22

... 50 o h 350 eV 50 o C 1s h 350 eV 50 o o 50 153 Intensity (a.u.) Intensity (a.u.) 2 85 B2 0o C6 C5 0o B1 30 Co 156 154 152 Binding energy (eV) 10 Co Co Graphene 158 30 Co 10 Co C4 C3 C2 Co 150 Graphene ... Adsorption of Co at room temperature (a) (b) 50 o Co 3p h 350 eV 50 o Si 2p h 350 eV 60 50 o 102 A1 o Intensity (a.u.) Intensity (a.u.) 50 0o 0o 30 Co 30 Co 10 Co Co Grap...

Ngày tải lên: 11/09/2015, 09:59

... connections Because of the increasing incidents of virus infiltration, businesses and agencies are becoming wary of sharing software Security policies need to be increased as immunity programs are ... Hanoi, that is the capital of our country, is a city of peace A B C D 57 Have you finish the report yet? A B C D 58 He has made a lot of mistakes in his writing because of his care...

Ngày tải lên: 05/09/2013, 22:10

... average of 22 hours of (49) _, during the last years children receive an average of 25 hours per week Schools are open days a week, but children are free on Wednesday afternoon At the end of primary ... is open _ all of the students and the teaching staff of the school a for b over c to d among I have just taken a Test of English as a Foreign Language or TOEFL _ short a of b i...

Ngày tải lên: 18/10/2013, 07:11

... decisions? Will they if you change in the future? 1 058 9$ $CH3 02-23-04 16:44:29 PS 36 Golf and the Game of Leadership The Sense of Integrity The professional golfer’s sense of integrity is ... Ultimate Golf Techniques, writes: To be a golfer rather than just a hitter of golf balls is to understand and respect the values that set the game of golf apart...

Ngày tải lên: 21/01/2014, 21:20

... average lifetime of the proton is at least 10 35 years (the number 10 35 means a followed by 35 zeros) This may appear to be an odd answer, since the age of the universe is only about 15 x 109 years ... the second and third generation of particles exist at all They look for connections between the four forces in the universe and continue their quest for a theory of everything...

Ngày tải lên: 26/01/2014, 00:20

Ngày tải lên: 08/02/2014, 18:04

... structure of cN-II showing interfaces A and B and the Mg2+ site The inset shows the tertiary structure of each subunit Effector sites and and the active site are shown Table Effect of point mutations ... the members of the haloacid dehalogenase (HAD) superfamily, including the soluble 5¢-nucleotidase family: cytosolic 5¢-nucleotidases cN-II, cN-III, cN-IA and cN-IB, a...

Ngày tải lên: 15/02/2014, 01:20