Ferroelectric gating of graphene 9

... 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

... 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

... 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

... faster and more reliable 89. I findthis mgazine (inform) It’s full of rubbish 90 .Rading newspapers every day is an effective means of keeping up with the (late) and (globe) 91 W website is a place ... to see the volcanic (erup) of Mt Vesuvius 1 89 The mountain was full of (volcano) rock and ash when the eruption was over 190 When the fire occured, I was fast (sleep) 191 Mr Rob...

Ngày tải lên: 20/09/2013, 12:10

... (S) for the same and (D) for the different a The frictional force is greater when the contact force is greater b The greater the contact force, the greater the frictional force a When the mass of ... and therefore has the same mass The equal- arm balance gives us a way of comparing masses of objects of any kind, regardless of their shape, form, color, or what substance they are...

Ngày tải lên: 20/10/2013, 03:15

Ngày tải lên: 11/11/2013, 01:11

... 2-decided learned 3-cap paddy 4-skirt fish 5-cheap eat 6-touch watch 7-uncle turtle 8-local improve 9- dress pretty 10- material shark * Write : stayed collected woman exit teacher armchair cut buffalo ... Nam / be / school library / three hours ago / borrow / comics ……………………………………………………………………………………… 9- Mr Nam /learn /English last week but he / not / know / read it …………………………………………………………………...

Ngày tải lên: 27/11/2013, 02:11

... shortage of water unless it rains A If it doesn’t rain, there will be a shortage of water B There will be a shortage of water if it rains C It doesn’t rain, there would be a shortage of water ... (want) (find) _ a good English dictionary At last both of us (buy) the same ones after we (look) for many kinds of dictionary carefully V- Choose the sentence (A, B, C or D) ... hurry up...

Ngày tải lên: 27/11/2013, 13:11

... lot of funny things to make people laugh 10 There is a game on television tonight B Answer the questions Can dolphin talk with words like people? What dolphins talk about? What is a school of ... see them d A dolphin can talk with sound The word “school” in line of the passage means a A place to teach children b A group of dolphins a big house The dolphins like to be a At an aquarium...

Ngày tải lên: 27/11/2013, 13:11

... 02-23-04 16:44:46 PS 72 Golf and the Game of Leadership refer to this as a bringing together of the elements of the game, whether golf or leadership, for a shot at the target All the pieces— values, ... from the ball on the tee and from the club face to the target The other track is a parallel alignment of the shoulders, hips, and feet There is a...

Ngày tải lên: 21/01/2014, 21:20