structure of alumina nanowires synthesized by chemical etching
structure of alumina nanowires synthesized by chemical etching
... the structure of alumina nanowires (ANWs) synthesized by the chemical etching of an anodic alumina membrane (AAM). The AAM was prepared by the two-step anodization method followed by the lift-off ... surrounded by the byproducts of the reaction between alumina and NaOH, and (d) core-shell structured ANWs. Fig. 7. XPS spectra of ANWs. The ANWs were synthesized...
Ngày tải lên: 20/03/2014, 13:08
Dimensional evolution of silicon nanowires synthesized by au–si island catalyzed chemical vapor deposition
... (2007) 153–157 Dimensional evolution of silicon nanowires synthesized by Au–Si island-catalyzed chemical vapor deposition D.W. Kwak, H.Y. Cho, W C. Yang à Department of Physics and Quantum-Functional ... transformation of the liquid into Au–Si alloy droplet structures, whose shape is determined by minimization of the surface and interface energy of the liquid/substrate. Al...
Ngày tải lên: 16/03/2014, 15:15
Temperature dependence of morphology and diameter of silicon nanowires synthesized by laser ablation
... dependence of the morphology of SiNWs synthesized by laser abla- tion. In this Letter, we present the results on this project. Our results show that the morphology and diameter of SiNWs synthesized by ... Temperature dependence of morphology and diameter of silicon nanowires synthesized by laser ablation Y.Q. Chen, K. Zhang, B. Miao, B. Wang, J.G. Hou * Structure Res...
Ngày tải lên: 16/03/2014, 15:09
Morphology and growth mechanism study of self assembled silicon nanowires synthesized by thermal evaporation
... study of self-assembled silicon nanowires synthesized by thermal evaporation Z. Zhang 1 , X.H. Fan, L. Xu, C.S. Lee, S.T. Lee * Center of Super-Diamond and Advanced Films & Department of Physics ... precipitation of silicon nanowires from the droplet can be induced. Based on a systematic analysis of the growth mechanism of semi-conductor nanowires, Lee et al. [18] pro...
Ngày tải lên: 16/03/2014, 15:06
Si nanowires synthesized by laser ablation of mixed sic and sio2 powders
... typical morphology of the materials in the yellow web. It can be seen that the product consists of nanowires with an average diameter of 14 nm. Most of the SiNWs are consist of straight and smoothly ... morphology is a common characteristic of wx various nanowires, such as SiC nanowires 15 and wx carbon nanowires 16 . Although the nanowires have a high ratio of length t...
Ngày tải lên: 16/03/2014, 15:08
Characterization of tin catalyzed silicon nanowires synthesized by the hydrogen radical assisted deposition method
... Characterization of Tin-catalyzed silicon nanowires synthesized by the hydrogen radical-assisted deposition method Minsung Jeon ⁎ , Hisashi Uchiyama, Koichi Kamisako Department of Electronic and ... e lectronic, optoelectronic and electrochemical devices with low-dimensional structures. In recent years, silicon nanowires (SiNWs) as one-dimensional structure have attracted due to...
Ngày tải lên: 16/03/2014, 15:10
Photoluminescence of silicon nanowires obtained by epitaxial chemical vapor deposition
... on insulator thin films [8–10]. Simulation of the emission spectrum of an ehp by a convolu- tion product of the density of states of the carriers affected by the Fermi–Dirac distribution is performed: Iðh u Þ¼ Z 1 À1 r e ðÞ r h ð ... 2008 PACS: 71.35.Ee 78.55.Ae 78.67.Àn Keywords: Nanowires Silicon Photoluminescence Exciton Electron-hole-plasma abstract We have carried out ph...
Ngày tải lên: 16/03/2014, 15:19
Synthesis and photoluminescence property of silicon carbon nanowires synthesized by the thermal evaporation method
... 1. Schematic illustration of synthesized b-SiC nanowires. Fig. 2. SEM image of the nanoporous AAO template surface. Fig. 3. SEM image of b-SiC nanowires synthesized by thermal evaporation: (a) with ... several pure nanowires (Fig. 5b). The presence of peaks demonstrates that the nanowires are composed of Si, C and small amount of O. It is found that the molecular rat...
Ngày tải lên: 16/03/2014, 15:21
Báo cáo " Growth of CdS thin films by chemical bath deposition technique " pptx
... VNU Journal of Science, Mathematics - Physics 24 (2008) 119-123 119 Growth of CdS thin films by chemical bath deposition technique Be Xuan Hop*, Ha ... [4], molecular beam epitaxy [5], spray pyrolysis [6], chemical bath deposition [7]. Chemical bath deposition is a method of growing thin films of certain materials on a substrate immersed in an ... preparation of large...
Ngày tải lên: 14/03/2014, 13:20
Silicon quantum wires arrays synthesized by chemical vapor deposition and its micro structural properties
... would be expected, the nanowires are of a uniform diameter of about 50 nm, which is consistent with the pore diameter of the alumina template. A sharp tip is found at the end of each nanowire, which ... presence of trace of P confirms our previous M. Lu et al. / Chemical Physics Letters 374 (2003) 542–547 543 finding that anion ions of anodizing electrolytes are incorporated...
Ngày tải lên: 16/03/2014, 15:08