properties of buckytubes and derivatives

CARBON NANOTUBES 2012 pptx

Ngày tải lên : 05/03/2014, 15:21

... DRAVID, J B KETTERSON and R P H CHANG: Properties of buckytubes and derivatives 111 J.-P ISSI, L LANGER, J HEREMANS and C H OLK: Electronic properties of carbon nanotubes: Experimental ... contribute to the dissemination of present understanding of the subject and to future developments in the science and technology of carbon nanotubes and fullerenes, and of carbon science more generally ... properties of carbon nanotubes Most of these unusual properties are a direct consequence of their 1D quantum behavior and symmetry properties, including their unique conduction properties[ l and...

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CARBON NANOTUBES ppt

Ngày tải lên : 14/03/2014, 16:20

... DRAVID, J B KETTERSON and R P H CHANG: Properties of buckytubes and derivatives 111 J.-P ISSI, L LANGER, J HEREMANS and C H OLK: Electronic properties of carbon nanotubes: Experimental ... contribute to the dissemination of present understanding of the subject and to future developments in the science and technology of carbon nanotubes and fullerenes, and of carbon science more generally ... properties of carbon nanotubes Most of these unusual properties are a direct consequence of their 1D quantum behavior and symmetry properties, including their unique conduction properties[ l and...

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CARBON NANOTUBES pot

Ngày tải lên : 27/06/2014, 17:20

... DRAVID, J B KETTERSON and R P H CHANG: Properties of buckytubes and derivatives 111 J.-P ISSI, L LANGER, J HEREMANS and C H OLK: Electronic properties of carbon nanotubes: Experimental ... contribute to the dissemination of present understanding of the subject and to future developments in the science and technology of carbon nanotubes and fullerenes, and of carbon science more generally ... properties of carbon nanotubes Most of these unusual properties are a direct consequence of their 1D quantum behavior and symmetry properties, including their unique conduction properties[ l and...

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CARBON NANOTUBES.Elsevier Journals of Related Interest Applied Superconductivity Carbon Journal pdf

Ngày tải lên : 27/06/2014, 17:20

... DRAVID, J B KETTERSON and R P H CHANG: Properties of buckytubes and derivatives 111 J.-P ISSI, L LANGER, J HEREMANS and C H OLK: Electronic properties of carbon nanotubes: Experimental ... contribute to the dissemination of present understanding of the subject and to future developments in the science and technology of carbon nanotubes and fullerenes, and of carbon science more generally ... properties of carbon nanotubes Most of these unusual properties are a direct consequence of their 1D quantum behavior and symmetry properties, including their unique conduction properties[ l and...

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sensor response of sol–gel multiwalled carbon nanotubes-tio2 composites

Ngày tải lên : 20/03/2014, 13:07

... sensor response, and times of adsorption/desorption of screenprinted and dip-coated films sensing a flux of 150 mL of N2 with a charge of 1% NH3 Material Fig Optical properties of: (a) dip-coated ... adsorption/desorption, and the direction and amount of charge transfer Fig Photocurrent ratio of dip-coated TiO2 –MWCNT films and TiO2 films as a function of wavelenght The spectral response of TiO2 (broken line) and ... dip-coated and screen-printed composites with their sensing performance The color and size of titania symbols are representative of the lack (white) or abundance (yellow) of Ti3+ states and of the...

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Báo cáo hóa học: " Multiscale investigation of graphene layers on 6H-SiC(000-1)" pot

Ngày tải lên : 21/06/2014, 05:20

... to 60 nm (c, d) Raman shift of the G and 2D bands, respectively The positions of both bands are shifted to higher energies The G band is around 1610 cm-1 and the 2D band around 2750 cm-1 This high ... centered at 1582 cm-1, and a 2D band at 2690 cm-1 The average up shift is then of 28 cm-1 for the G band, and of 60 (30) cm-1 for the 2D (D) band, respectively The G and 2D band Raman shift maps are ... D band lies around 1380 cm-1, the G band around 1610 cm-1, and the 2D band around 2750 cm-1 whereas neutral relaxed graphene has a D band around 1350 cm-1, a G band centered at 1582 cm-1, and...

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báo cáo hóa học:" Optimizing the thermoelectric performance of zigzag and chiral carbon nanotubes" pdf

Ngày tải lên : 21/06/2014, 17:20

... the NEGF and NEMD calculations HJL participated in the design of the study and discussions of the theoretical results YWW, HYL, and LP participated in the implementation of the LAMMPS and ATK ... Nano-structures of Ministry of Education and School of Physics and Technology, Wuhan University, Wuhan, 430072, China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan ... simulations and nonequilibrium Green's function method, we investigate the thermoelectric properties of a series of zigzag and chiral carbon nanotubes which exhibit interesting diameter and chirality...

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Modeling and simulation of buckling of pristine and defective carbon nanotubes

Ngày tải lên : 09/09/2015, 18:54

... missing atoms and the shape of defects, on the buckling properties of SWNTs and DWNTs are studied The cumulative effect of defects and temperature on SWNTs is also assessed 12 1.4 Layout of the thesis ... the buckling of defective freestanding CNTs Here, effects of different defect parameters, such as number of missing atoms, number of dangling bonds, asymmetry of defects and number of vacancy clusters, ... effect of SW defects on tensile behavior and fracture of achiral and chiral SWNTs They found that the effect of SW defect on the tensile properties of armchair tubes is higher than that of zigzag...

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Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 1

Ngày tải lên : 11/09/2015, 10:17

... support and great confidence in me all through these years ii Table of Contents Table of Contents ACKNOWLEDGEMENTS TABLE OF CONTENTS ABSTRACT I III VII LIST OF TABLES IX LIST OF FIGURES X LIST OF ... the tube axis, and a1 and a2 are the unit vectors of graphene in real space Fig 1.4 Schematic illustration of sp1, sp2 and sp3 hybrid carbon orbitals Fig 1.5 Illustration of energy of the electrons ... the conduction band minimum, and VBM is the valence band maximum 134 Fig 6.10 Top and cross-sectional view SEM images of composite emitters (a) and (b) 50 nm ta-C coated CNTs; (c) and (d) 50 nm...

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Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 2

Ngày tải lên : 11/09/2015, 10:17

... emission mass, barrier height of the emitter F is the local field, ε0 is the permittivity of free space, emitters, 21 Chapter Physics of Field Emission and t(y) and υ(y) are the Nordheim elliptic ... electron emission mechanism The slope of the linear region of the F-N plot is a function of both β and Ø, which can be expressed as below by transformation of the Eq (2.3): φ3/ Slope = −6.83 × ... low and high electrical field This deviation might be due to the space charge effects, overheating of the emitter tips or the low concentration of the carriers in the tips, conduction band of...

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Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 3

Ngày tải lên : 11/09/2015, 10:17

... representing the order of diffraction, λ is the wavelength, d is the interplanar spacing of the reflecting (diffracting) plane, and θ is the angle of the incidence and of the diffraction of the radiation ... measurements of the work functions and band structures of the solid, the surface and adsorbed layers [27, 28] In this study, UPS technique was used to measure the work functions of the samples Photons of ... Santos, Principles and Applications of NanoMEMS Physics (Springer, Netherlands, 2005) pp 15 S Zhang and N Ali, Nanocomposite Thin Films and Coatings: Processing, Properties and Performance (Imperial...

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