Ferroelectric gating of graphene 7
Ferroelectric gating of graphene 7
... 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
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
Ferroelectric gating of graphene chap 3
... 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
Ferroelectric gating of graphene 1
... 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
Ferroelectric gating of graphene 6
... 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 gating of graphene 4
... 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
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
Ferroelectric gating of graphene 8
... 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
Dynamics of epitaxial graphene growth and adsorptions of cobalt 7
... length of Si-C (1.89 Å) Because of this large separation between graphene and 6x6 maxima, we believe the graphene monolayer interact weakly with the underlying interface (iii) nucleation dynamics of ... nucleation of 63 surface 250 Conclusions (iv) surface intercalation of Co on graphene and 63 surface Co deposited at elevated temperature exhibits a completely differen...
Ngày tải lên: 11/09/2015, 09:59
English for students of Physics_Unit 7
... forces (This is an example of a pair of equal and opposite forces, as required by Newton’s third law of motion) The Earth pulls on you with a force (your weight) directed towards the center of ... substances independently of their volumes 12 The density of a mixture of two liquids usually depends on the ratio in which they are mixed The same is true for the density of a solu...
Ngày tải lên: 17/10/2013, 16:15
45'''' Test of English 7 No.2 (Excellent)
... They often play soccer, tennis or badminton They sometimes go swimming (Sometimes they go swimming) They often play musical instruments in the music room They usually rehearse plays They often ... Answers I Choose the correct answers (2 pts) c a c d d d a c II Supply the correct tense of the verbs in brackets (2 pts) play is reading When will she leave for Hanoi? study IV) Write
Ngày tải lên: 04/11/2013, 20:11
English 10. rivison of unit 7,8
... coffee?' Peter asked me a Peter asked me if I liked coffee b Peter offered to give me some coffee c Peter asked me to make him a cup of coffee d Peter wanted to know if I-would like to make coffee ... b have gone c went d will go 11 a they had often done b they often had done c had they often done d often had they done VIII Choose the correct form of the verbs to complete these sentences...
Ngày tải lên: 05/11/2013, 13:11
Tài liệu Golf and the game of leadership 7 ppt
... If yes, they see it in black -and- white or Technicolor? Finally, you have a vision for yourself and your future in the game of leadership, much as Woods, Sorenstam, and the other stars of the sport ... point of the organization’s activities It is the job of the ‘‘leaders in the middle’’ to knit these two elements together Organizational vision and values are es...
Ngày tải lên: 21/01/2014, 21:20