Temperature dependence of morphology and diameter of silicon nanowires synthesized by laser ablation
Temperature dependence of morphology and diameter of silicon nanowires synthesized by laser ablation
... Temperature dependence of morphology and diameter of silicon nanowires synthesized by laser ablation Y.Q. Chen, K. Zhang, B. Miao, B. Wang, J.G. ... the temperature 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...
Ngày tải lên: 16/03/2014, 15:09
Si nanowires synthesized by laser ablation of mixed sic and sio2 powders
... 16–20 www.elsevier.nlrlocatercplett Si nanowires synthesized by laser ablation of mixed SiC and SiO powders 2 Y.H. Tang, Y.F. Zhang, H.Y. Peng, N. Wang, C.S. Lee, S.T. Lee ) () Center of Super-Diamond and AdÕanced Films COSDAF and ... The morphology is a common characteristic of wx various nanowires, such as SiC nanowires 15 and wx carbon nanowires 16 . Although...
Ngày tải lên: 16/03/2014, 15:08
Morphology and growth mechanism study of self assembled silicon nanowires synthesized by thermal evaporation
... Morphology and growth mechanism 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 ... synthesis of SiNWs. The key point in these two methods is the formation of a sucient amount of silicon atoms and/ or silicon oxide clusters in gas phase from the target powd...
Ngày tải lên: 16/03/2014, 15:06
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 Information ... 1. FE-SEM images of the as -synthesized SiNWs at hydrogen gas flow of (a) 130 sccm, (b) 150 sccm and (c) 180 sccm. All the scale bars represent 2.5 µm. (d) XRD patt...
Ngày tải lên: 16/03/2014, 15:10
Dimensional evolution of silicon nanowires synthesized by au–si island catalyzed chemical vapor deposition
... materials [3]. In metal island-catalyzed growth of Si-NWs via the VLS processes, the diameter and alignment of the NWs can be readily controlled by the size of the catalytic metal islands and the substrate ... 1.2 nm and (b) 3.0 nm of Au deposited at room temperature and followed by annealing at 700 1C. (c) and (d) Tilted SEM images of the (a) and (b) substrates...
Ngày tải lên: 16/03/2014, 15:15
Morphology and physiology of viruses
... Chair of Medical Biology, Microbiology, Virology, and Immunology STRUCTURE, CLASSIFICATION AND PHYSIOLOGY OF VIRUSES Measuring the Size of Viruses A. Filtration Through Collodion Membranes of ... Fibroblasts of human embryou, Kidney of rhesus monkey, WI-38, RD, Primary cultures of chiken fibroblasts Cell Cultures Morphologic and Structural Effects 1 The cytopathic...
Ngày tải lên: 15/03/2014, 12:59
Synthesis and photoluminescence property of silicon carbon nanowires synthesized by the thermal evaporation method
... consist of nanowires, which are single-crystalline b -SiC with diameters of about 50 nm and tens of micrometers long. The nanowires axes lie along the /111S direction and possess a high density of ... 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
the role of morphology and crystallographic structure of metal oxides
... of this statement. It was established that the decrease of Ag, Bi, Sn, and Pb films’ thickness to 5 nm was accompanied by temperature decrease of crystallization up to 0.6–0.7 of the melting temperature ... areas of the SnO 2 sensors and their sensitivity to 500 ppm of H 2 and CO at 300 8C. Sensors were fabricated by pressing and annealing at 450 8C calcined SnO 2 p...
Ngày tải lên: 20/03/2014, 13:11
Báo cáo khoa học: "A Part of Speech Estimation Method for Japanese Unknown Words using a Statistical Model of Morphology and Context" pptx
... a combination of its surface form and part of speech. Two words are considered to be equal only if they have the same surface form and part of speech. 277 Table 1: Examples of word bigrams ... on their part of speeches 2 Table 1 shows examples of word bigrams including unknown word tags. Here, a word is represented by a list of surface form, pronunciation, and p...
Ngày tải lên: 23/03/2014, 19:20
energy relaxation in cdse nanocrystals the effects of morphology and film preparation
... Results and discussion Analysis of TEM images shown in Figs. 1(a) and 1(d) show average QD diameters of ~4.0 nm with a standard deviation of 7% and average QR diameters of ~4.0 nm and lengths of ... Steigerwald, and I. P. Herman, “Ligand control of growth, morphology, and capping structure of colloidal CdSe nanorods,” Chem. Mater. 19(10), 2573–2580 (2007). 15. J...
Ngày tải lên: 06/05/2014, 08:53