Interconnection of electrodes using field emission induced growth of nanowires

... consisted of the a-Fe2O3 Fig The I–V characteristics of (a) the ITO /a-Fe2O3 film /a-Fe2O3 NW/ CAFM-tip structure and (b) the ITO /a-Fe2O3 film /CAFM-tip structure Fig The CAFM images of (a) morphology and ... 108 NWs/cm2 123 332 Fig (a) TEM image of an a-Fe2O3 NW, (b) HR-TEM image of the a-Fe2O3 nanowire, and the SAED pattern of the a-Fe2O3 NW (inset) for sample C,...

Ngày tải lên: 20/03/2014, 13:08

... at half length and radii (solid circles) of tangent circles of the tips as a function of heating temperatures FIGURE ZHENG et al Ultra-sharp α-Fe2 O3 nanoflakes: growth mechanism and field-emission ... 245, 291, 408 and 499 cm−1 correspond to the α-Fe2 O3 phase [20], namely two A1g modes (225 and 499 cm−1 ) and three Eg modes (245, 291 and 408 cm−1 ) Those peaks locating at 55...

Ngày tải lên: 20/03/2014, 13:11

... doi:10.1186/1556-276X-6-550 Cite this article as: Ahn et al.: Nano-structure fabrication of GaAs using AFM tip-induced local oxidation method: different doping types and plane orientations Nanoscale Research Letters ... height profiles of p -GaAs( 100), n -GaAs( 100), pGaAs(711), and n -GaAs( 711) As a function of the applied bias voltages and the loading...

Ngày tải lên: 20/06/2014, 22:20

... nanotube nanoneedle (a) Carbon nanotube nanoneedle before Au nanoparticle coating and (b) after Au nanoparticle coating (scale bar: μm) (c) Magnified view of Au nanoparticle-coated nanoneedle (scale ... Figure Schematic diagram of the nanoneedle fabrication process (a) A carbon nanotube nanoneedle using dielectrophoresis and (b) a functional material-coat...

Ngày tải lên: 21/06/2014, 04:20

... electron field emission characteristics Appl Surf Sci 2004, 221:38 doi:10.1186/1556-276X-6-176 Cite this article as: Zhao et al.: Field emission enhancement of Au-Si nano-particle-decorated silicon ... potential barrier height of emitter Conclusions Au film coating on the tip of SiNWs reduces the FE properties of SiNWs because of Au having high work function Well-ali...

Ngày tải lên: 21/06/2014, 05:20

... field emitters Adv Mater 2007, 19:2593 30 Zhang Y, Lee CT: Site-controlled Growth and Field Emission Properties of ZnO Nanorod Arrays J Phys Chem C 2009, 113:5920 31 Patra SK, Rao GM: Field emission ... Cooperative and Anisotropic wetting for Liquid Reprography Adv Mater 2009, 21:1 doi:10.1186/1556-276X-6-74 Cite this article as: Yao et al.: Morphology-dependent field...

Ngày tải lên: 21/06/2014, 06:20

... that the emission area in this high field region not changed, and the stability of field emission is high The slopes and intercedes of these plots in the high field region are the same, showing the ... AlQ3 Conclusions In conclusion, the field emission properties for Ag-TCNQ nanostructured array were dependent on the structure and morphology determined by th...

Ngày tải lên: 21/06/2014, 17:20

... Paradox of low field enhancement factor for field emission nanodiodes in relation to quantum screening effects Tsung-Chieh Cheng*1, Pai-Yen Chen2, and Shen-Yao Wu1 Department of Mechanical ... wuman0802@msn.com Abstract We put forward the quantum screening effect in field emission [FE] nanodiodes, explaining relatively low field enhancement fac...

Ngày tải lên: 21/06/2014, 17:20

... ratio 0.90 0.87 0.92 and the strong band around 1,335 cm-1 is referred to the D-band The D-band corresponds to the defects and disordered in the graphene sheets, and the G-band is attributed to ... Conclusions Thin-walled, open-ended, and well-aligned N-doped CNTs were synthesized by using acetonitrile as a carbon source Temperature effects on diameter, TWI of as-produced...

Ngày tải lên: 21/06/2014, 18:20

... the FE properties of CdS nanotube arrays The FE properties of CdS nanotube arrays increase with the increase of l/t The length of samples A, B, and C are almost same, so the arrays of CdS nanotube ... images of b, c, and d are high magnification TEM images of A, B, and C, respectively The inset images are SAED patterns of corresponding CdS nanotube Fig...

Ngày tải lên: 22/06/2014, 00:20

... 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

... variety of nanostructured carbon films ranging from diamond [24], carbon nanosheets [25] CNTs [20, 23], and carbon nanobells [26, 27] to monochiral MWNTs [28] on Si substrates This technique offers ... treatment of Fe film on such substrates These particles probably seeded the nucleation and growth of CNTs Surface morphology of CNT films deposited on such substrates i...

Ngày tải lên: 22/06/2014, 01:20

... consisted of the a-Fe2O3 Fig The I–V characteristics of (a) the ITO /a-Fe2O3 film /a-Fe2O3 NW/ CAFM-tip structure and (b) the ITO /a-Fe2O3 film /CAFM-tip structure Fig The CAFM images of (a) morphology and ... 108 NWs/cm2 123 332 Fig (a) TEM image of an a-Fe2O3 NW, (b) HR-TEM image of the a-Fe2O3 nanowire, and the SAED pattern of the a-Fe2O3 NW (inset) for sample C,...

Ngày tải lên: 22/06/2014, 01:20

... resolution of 0.25 nm One of the tungsten tips is landed on a platinum contact which ends at the base of the nanostructure and the other is positioned close to the outer branches of the nanostructure ... silica /carbon heterostructures [16] and arrays of fractal-like a-C nanotips [11] RDF Studies Previous to the FE experiments we made energy-filtered convergent-beam electron...

Ngày tải lên: 22/06/2014, 01:20

... stress during growth from the high electric field Cold -field emission induced growth of single ultrathin nanowires of tens of microns long was first reported by Thong et al (2002) By using high ... nanotube) through the technique of field emission induced growth (FEIG), as shown in Figure 1.4 In FEIG of nanowires, an electric field high enough for field...

Ngày tải lên: 08/11/2015, 16:38