growth of monoclinic wo3 nanowire array for highly

... the nanowire array growth. The nanowire array was employed directly for gas sensor fabrication using photolithography. The gas sensing experiments revealed that the nanowire array sensors are highly ... temperature. The nanowire grew on top of WO 3 nanoparticle seed layers, forming a quasi- aligned nanowire array. The nanowires were single crystalline with monoclinic...

Ngày tải lên: 19/03/2014, 16:48

... WO 3 film, the highly porous and well-aligned WO 3 nanowire array film exhibited a much better electrochromic performance. The WO 3 nanowire array film showed a transmittance modulation of up to 58% ... Digital photographs of the WO 3 nanowire array film at different stages: (a) as-prepared; (b) colored at À1.0 V for 30 s; (c) colored at À2.0 V for 30 s; (d) bleached at 2.0...

Ngày tải lên: 20/03/2014, 13:04

... ZT nw is the ZT value of the nanowire, ␬ m is the thermal conductivity of the matrix, ␬ nw is thermal conductivity of the nanowire, and f nw is the volume filling fraction of the nanowires in the composite. ... the nanowire array composites by fabricating dense, textured, nanowire arrays in a PAA matrix and then replacing the PAA matrix with epoxy resin. The criteria for sel...

Ngày tải lên: 06/05/2014, 08:54

... ZT nw is the ZT value of the nanowire, ␬ m is the thermal conductivity of the matrix, ␬ nw is thermal conductivity of the nanowire, and f nw is the volume filling fraction of the nanowires in the composite. ... the nanowire array composites by fabricating dense, textured, nanowire arrays in a PAA matrix and then replacing the PAA matrix with epoxy resin. The criteria for sel...

Ngày tải lên: 06/05/2014, 08:58

... Controlled growth of the nanowires in their morphology, orientation, for example, is the key to success both for characterization of physical properties and exploration of device ap- plication of the nanowires; ... point of Fig. 2. SEM images showing the high orientation of the nanowire films. (a) Edge of the film showing a wide-spread orientation of the nanowires. (b) D...

Ngày tải lên: 16/03/2014, 15:07

... the nanowire- array- template using xenon difluoride (XeF 2 ). Pore size and density using the described technique are controllable. The former is dependent on nanowire diameter and the duration of ... describe the preparation of a porous polyimide membrane using a vertically oriented silicon nanowire (SiNW) array as a template. Since the diameters and densities of silicon nanowi...

Ngày tải lên: 16/03/2014, 15:10

... 2462–2467 Investigation of Au and In as solvents for the growth of silicon nanowires on Si(1 1 1) Andrea Kramer à , Torsten Boeck, Peter Schramm, Roberto Fornari Institute for Crystal Growth, Berlin 12489, ... which is essential for most of the applications. In this work, the investigation of Au and In as solvents for the growth of silicon nanowires on Si(1 1 1) via PVD...

Ngày tải lên: 16/03/2014, 15:17

... Modeling Research Group of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, H-1111 Budapest, Szt. Gelle ´ rt te ´ r4, Hungary b Department of Materials Science ... promoting reactants) of alkali tungstates [9–13]. However, since a hydrothermal step is involved, the small dimension of autoclaves used for research purposes limits the yield of h...

Ngày tải lên: 20/03/2014, 13:06

... fabrication, especially for mass production because they require multiples synthesis processes including of (i) growth of nanowires, (ii) collection of nanowires, (iii) dispersal of the nano- wires ... image of SWCNTs templates; (b) FE-SEM image of WO 3 nanowires; (c) TEM image of single WO 3 nanowires; (d) High-resolution TEM lattice image and SAED pattern of WO 3 nanowir...

Ngày tải lên: 20/03/2014, 13:06

... The bundles of TiO 2 nanotubes consist of separated tubes with diameters in the range of approximately 20–40 nm and the WO 3 nanopores consist of pores with diameters in the range of 30–50 nm. Growth ... usually takes up to several hours. For instance, in case of Ti, it has been shown that the growth of nanotubes with different diameters and lengths up to aspect ratios of...

Ngày tải lên: 20/03/2014, 13:06