hydrothermally synthesized wo3 nanowire arrays with highly improved

... Hydrothermally synthesized WO 3 nanowire arrays with highly improved electrochromic performance† Jun Zhang, Jiang-ping Tu, * Xin-hui ... utilized due to the compact stacking. Growing the nanowires vertically onto the substrate to form the WO 3 arrays (so each nanowire has good contact with both the substrate and the electrolyte) would ... on FTO-coated glass. Nanowire a...

Ngày tải lên: 20/03/2014, 13:04

... tungsten nanowire array was successfully synthesized under a pressure of 13–15 Torr with an air flow of 200 sccm at a temperature of 1000  C. Fig. 1 shows typical FESEM images of an as -synthesized nanowire ... quasi-aligned, single crystal WO 3 nanowire array using tungsten powder as the source material. In addition, the gas sensors based on such WO 3 nanowire arrays demonstra...

Ngày tải lên: 19/03/2014, 16:48

... properties observed for WO 3 films deposited with three interruptions were highly enhanced for oxidizing gases in comparison with those sensing films prepared without interruptions [10]. For instance, ... substrate arrays and (2) the deposition of WO 3 thin films by rf sputtering. 2.1. Micro-machined substrate arrays The sensor substrate consisted of four-element integrated micro-hotpl...

Ngày tải lên: 20/03/2014, 13:04

... to our knowledge. We have synthesized homogeneous morphology and highly ordered SnO 2 /Fe 2 O 3 composite nanowire arrays by combining sol-gel template processing with electrophoretic deposition. ... ɑ-Fe 2 O 3 with diameters of 10－15 nm. The SnO 2 /Fe 2 O 3 com- posite nanowires are formed by a series of chemical reac- tions. Keywords: SnO 2 /Fe 2 O 3 composite nanowir...

Ngày tải lên: 20/03/2014, 13:08

... Computational Linguistics Minimized models and grammar-informed initialization for supertagging with highly ambiguous lexicons Sujith Ravi 1 Jason Baldridge 2 Kevin Knight 1 1 University of Southern ... This generally involves working with the standard set of 45 POS-tags employed in the Penn Treebank. The most ambiguous word has 7 dif- ferent POS tags associated with it. Most methods...

Ngày tải lên: 07/03/2014, 22:20

... October 2005 Abstract Arrays of aligned silicon nanowire (SiNW) were synthesized on a silicon (1 0 0) substrate by self-assembling electroless nanoelectrochemistry. Compared with that of bulk crystal ... single-crystal SiNW arrays. In this work, SiNW arrays have been synthesized by self- assembly of EMD nanoelectrochemistry. The silver nano- caps were removed by post-deposition...

Ngày tải lên: 16/03/2014, 15:19

... pore arrays with a 50–420 nm interpore distance in anodic alumina have been obtained by anodizing aluminum in oxalic, sulfuric, and phosphoric acid solutions. Hexagonally ordered pore arrays with ... in- creases linearly with voltage. 8 For our ordered pore arrays, the dependence of pore distance on the anodic voltage is compared with reported data on disordered pore arrays in...

Ngày tải lên: 19/03/2014, 16:48

... 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 nanowires; (e) XRD pattern of WO 3 nanowires; and (f) the ... processes including of (i) growth of nanowires, (ii) collection of nanowires, (iii) dispersal of the nano- wires on solution, and (iv) deposition or alignment of nanowires on patterned metal electro...

Ngày tải lên: 20/03/2014, 13:06

... WO 3 nanoparticles have been investigated with X-ray diffraction (XRD), transmission electron microscopy (TEM), variable pressure scanning electron microscope (SEM) equipped with energy dispersive X-ray analysis (EDX) ... and size range between 10 and 50 nm. The WO 3 nanoparticles prepared with the CTAB micelle solution show spherical shape with the size range average of 25–50 nm. © 2...

Ngày tải lên: 20/03/2014, 13:08

... resulting nanowires were organized in parallel arrays of 100 ± 1000 wires. These nanowires were long (some > 500 mm), poly- crystalline, and approximately hemicylindrical in cross-section. The nanowire ... cross-section. The nanowire arrays prepared by electrodeposition were also ™port- able∫: After embedding the nanowires in a polymer or cyanoacry- late film, arrays of nanowires...

Ngày tải lên: 21/03/2014, 12:17