Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 7
Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 7
... molybdenum oxide -coated carbon nanotubes core- shell nanostructures” Journal of Materials Science 46, 4858 (2011) Jun Yu, and Daniel H C Chua “Enhanced field emission properties of hydrogenated ... H C Chua “Hydrogenation and its effects on the field emission characteristics of tetrahedral amorphous carbon coated carbon nanotubes Journal of Physical Chemistry...
Ngày tải lên: 11/09/2015, 10:18
Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 1
... Background 1. 2 Carbon Nanotubes 1. 2 .1 Discovery of Carbon Nanotubes 1. 2.2 Bonding Structures of Carbon Nanotubes 1. 2.3 Properties of Carbon Nanotubes 1. 2.4 Applications of Carbon Nanotubes 2 13 1. 3 ... Nanostructures 10 6 5.2.5 FE Study of Tungsten Oxides Coated CNT Nanostructures 11 0 5.2.6 Summary 11 4 References 11 5 CHAPTER FIELD E...
Ngày tải lên: 11/09/2015, 10:17
Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 2
... [9-13] 22 Chapter Physics of Field Emission -4 ln ( J/E2) Current density, J ( mA/cm2) -2 -6 -8 -10 - 12 -14 0 .2 0.3 0.4 0.5 1/E 0 Applied electric field, E ( V/µm) Fig 2. 2 The electron emission ... Proc 91, 429 (20 08) 29 Chapter Physics of Field Emission 20 C S Chang, S Chattopadhyay, L C Chen, K H Chen, C W Chen, Y F Chen, R Collazo, and Z Sitar, Phys Rev B 68, 125...
Ngày tải lên: 11/09/2015, 10:17
Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 3
... the acquisition time per spectrum of ~150 s 3. 4 Field Emission Apparatus Field emission testing of the samples was carried out with a custom-designed field emission system, using parallel plate ... ionization and emission of a core (inner shell) electron whereas in UPS the photon interacts with valence levels of the molecule or solid, leading to ionization by remova...
Ngày tải lên: 11/09/2015, 10:17
Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 4
... heater Fig 4. 1 Schematic setup of the PECVD system used 55 Chapter Synthesis of Vertically-Aligned Carbon Nanotubes 4. 3 Results and Discussion 4. 3.1 Characterization of the As-Grown Carbon Nanotubes ... covered with amorphous carbon, which is the product of the thermal deposition of hydrocarbon [3] 52 Chapter Synthesis of Vertically-Aligned Carbon Nanotubes...
Ngày tải lên: 11/09/2015, 10:18
Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 6a
... these core- shell nanostructures, consisting of core CNTs and shell DLC films The average shell films 125 Chapter Field Emission Study of Hydrogenated Tetrahedral Amorphous Carbon Coated Carbon Nanotubes ... multilayer thin film structures or core- shell structures, the FE 132 Chapter Field Emission Study of Hydrogenated Tetrahedral Amorphous Carbon...
Ngày tải lên: 11/09/2015, 10:18
Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 6b
... Chapter Field Emission Study of Hydrogenated Tetrahedral Amorphous Carbon Coated Carbon Nanotubes Core- Shell Nanostructures with the increase of ambient temperature during emission process, ... average diameter of these nanotubes is comparable to that 136 Chapter Field Emission Study of Hydrogenated Tetrahedral Amorphous Carbon Coated Carbon Nanotube...
Ngày tải lên: 11/09/2015, 10:18
Study of field emission characteristics of ultrathin film coated carbon nanotubes core shell structures 6c
... Chapter Field Emission Study of Hydrogenated Tetrahedral Amorphous Carbon Coated Carbon Nanotubes Core- Shell Nanostructures Fig 6.15 Carbon 1s core level XPS spectra of the (a) 50 nm ta C coated ... trend of the threshold fields exhibited by these samples during FE process, 142 Chapter Field Emission Study of Hydrogenated Tetrahedral Amorphous Carbon C...
Ngày tải lên: 11/09/2015, 10:18
Báo cáo hóa học: " A Study on Field Emission Characteristics of Planar Graphene Layers Obtained from a Highly Oriented Pyrolyzed Graphite Block" potx
... electrons are emitted from the graphene tip creating an electron current that can be modulated on and off Fig Fabrication process of graphene sheets using a mechanical exfoliation method The graphene ... vacuum chamber, two tungsten tips were located on the graphene sample; one was contacted directly to the sample and grounded as a cathode, and the other was placed an arbi...
Ngày tải lên: 22/06/2014, 00:20
A discrete dislocation study of thin film interfacial fracture
... bimaterial fracture studies of O'Day and Curtin (2005) to thin film interfacial fracture Lengthscale dependent plasticity, an important feature of plasticity in micrometer-sized films, naturally ... A DISCRETE DISLOCATION STUDY OF THIN FILM INTERFACIAL FRACTURE Chng Chia-K'ai Audrey (B Eng (Hons.), M Eng, NUS) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF...
Ngày tải lên: 11/09/2015, 21:37
Study of oxide film on copper electrode by in situ photothermal spectroscopy
... behavior of an oxide film on a copper electrode in a 0.1 N NaOH solution has been studied by the in- situ photothermal spectroscopy (PTS) method using a polyvinylidene difluoride (PVDF) pyroelectric film ... yield information regarding only the rate of reaction, the influence of diffusion, concentration, temperature, and so on They cannot give information about...
Ngày tải lên: 17/09/2015, 17:20
Polymer assisted synthesis of aligned amorphous silicon nanowires and their core shell structures with au nanoparticles
... surface of the SiNWs Because of the high standard electrode potential of the Au3 + /Au0 couple, Au3 + has high polarization and high chemical reactivity Au3 + could be easily reduced to Au0 in air ... mass-production of highly aligned SiNWs and their core/ shell structures with metal nanoparticles for the future applications in microelectronic and optoelectronic...
Ngày tải lên: 16/03/2014, 15:06
sensor response of sol–gel multiwalled carbon nanotubes-tio2 composites
... gas sensor for monitoring ammonia, Mater Char 58 (2007) 680–684 Please cite this article in press as: M Sánchez, M.E Rincón, Sensor response of sol–gel multiwalled carbon nanotubes-TiO2 composites ... doctorate degree under Prof Rincón’s surpevision Please cite this article in press as: M Sánchez, M.E Rincón, Sensor response of sol–gel multiwalled carbon nanotub...
Ngày tải lên: 20/03/2014, 13:07
báo cáo hóa học:" Optimizing the thermoelectric performance of zigzag and chiral carbon nanotubes" pdf
... out 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 ... method to study the thermoelectric properties of a serial of CNTs with different diameters and chiralities They are the zigzag (7,0), (8,0), (10,0), (11,0), (1...
Ngày tải lên: 21/06/2014, 17:20
Modeling and simulation of buckling of pristine and defective carbon nanotubes
... properties of carbon nanotubes 1.1.3 Applications of carbon nanotubes 1.2 Motivation 1.3 Objective and scope of work 11 1.4 Layout of the thesis 13 CHAPTER 2: LITERATURE REVIEW 2.1 Buckling of CNTs ... in armchair and zigzag CNTs 146 Figure 6.7: Effect of temperature on pristine and defective CNTs 147 Figure 6.8: Buckling mode shapes of pristine and de...
Ngày tải lên: 09/09/2015, 18:54