Synthesis and characterization of silicon nanowires using tin catalyst for solar cells application

... Synthesis and characterization of silicon nanowires using tin catalyst for solar cells application Minsung Jeon⁎, Koichi KamisakoDepartment of Electronic and Information Engineering, ... SiNWsReflectance Solar cells Phosphorous diffusionVLS mechanismHydrogen radicals Tin- catalyzed silicon nanowires were synthesized for solar cells application. Voluminous silicon nanowires were ... single crystalline silicon wafer. Optical reflectance and solar cell efficiency of thesynthesized silicon nanowires were explored. The reflectance of as-synthesized silicon nanowires wasobtained...

Synthesis and characterization of semiconducting nanowires for gas sensing

... one-dimensional nanostructures of semiconducting metal oxides are promising for the development of nano-devices. Tin, indium, and zincoxides were produced in form of single-crystalline nanowires through ... image of a nanowire, and (e) linescan of theHAADF signal (solid line) and numerical ﬁt of the shape of the nanowire (dashed line).As both composition and phase can be considered uniform for the ... promising for nanostructure fabrication, due to its simplicity and low cost withrespect to the technology of silicon processing and to other top-down approaches.A potential application of nanowires...

Structural investigation of silicon nanowires using GIXD and GISAXS evidence of complex saw tooth faceting

... appears with alternating upward and down-ward orientations on each side of the nanowires, reﬂecting the trigonal symmetry of the nanowires. The crystallographic orientation of some of these facets ... wire axis,aR and aM, respectively the real and measured anglesbetween~q and the vertical and u the angle between the normal of the facet and theCCD plane.Fig. 6. Model of the nanowires. ... Wagner and Ellis [1], the authorsclearly demostrate the growth of silicon wires on silicon h111i sub-strate using gold as a catalyst. Alternatively, {2 1 1} and {110} fac-ets are observed resulting...

thermal oxide synthesis and characterization of fe3o4 nanorods and fe2o3 nanowires

... oxide synthesis and characterization of Fe3O4 nanorods and Fe2O3 nanowires JIAO Hua1,2† & YANG HeQing1 1 Key Laboratory of Macromolecular Science of Shaanxi Province, School of ... media and biomedical fields[6－9], because of its good compatibility with organism and its electrical and magnetic characteristics of its size and morphology. Therefore, the preparation of ... composition of the sample, and the results can be seen in Figure 4(d). It can be clearly identified that the nanorods were composed of Fe and O elements, and the ratio of the number of atoms Fe and...

Tài liệu Báo cáo khoa học: Specific targeting of a DNA-alkylating reagent to mitochondria Synthesis and characterization of [4-((11aS)-7-methoxy-1,2,3,11a-tetrahydro-5H-pyrrolo[2,1-c][1,4]benzodiazepin-5-on-8-oxy)butyl]-triphenylphosphonium iodide doc

... class of alky-lating reagent. This inability to alkylate mtDNA in situhas signiﬁcant implications for the design of therapies for mtDNA diseases and for studies on the packaging,expression and ... the vicinity of mtDNA with the resultant binding and selective alkyla-tion leading to a depletion of mtDNA in intact cells (Fig. 1). Here we report the synthesis and characterization of a novel ... implications for the development of antigenomic therapies for mtDNAdiseases.Fig. 1. Selective uptake of mitoDC-81 by mitochondria and subsequentalkylation of mtDNA. The uptake of mitoDC-81 into cells...

Báo cáo khoa học: Synthesis and characterization of a new and radiolabeled high-afﬁnity substrate for H+/peptide cotransporters pdf

... concentrations and atincreasing Bip-Pro concentrations. The diffusional component of [14C]Gly-Sar uptake, of 8% in Caco-2 cells and of 4% in SKPT cells, measured in the presence of excess of Gly-Sar ... parameters and transport characteristics of Bip-[3H]Pro.Results and Discussion Synthesis, chemical characterization and stability of Bip-ProFigure 1 shows the structure (Fig. 1A) and the synthe-sis ... trans conformers of their substrates [22,23]. Tak-ing the cis⁄ trans content of Bip-Pro (78% ⁄ 22%) intoaccount, we obtained Ki transvalues for Bip-Pro of 5.2 lm in Caco-2 cells and of 0.75...

Temperature dependence of morphology and diameter of silicon nanowires synthesized by laser ablation

... evaporation of SiO powdersshowed that the temperature of substrate for col-lecting SiNWs played a dominant role in control-ling the diameter of SiNWs and the formation of various kinds of silicon ... rate of crystal silicon, outerlayer of silicon oxide will surround the crystal sil-icon. As a result, the growth of crystal silicon ceased and silicon oxide of outer layer coalescedtogether and ... Thepeculiar feature of the branch suggests that theremay exist a competitive growth between crystal silicon core and outer layer of silicon oxide. Whenthe forming rate of outer layer of silicon oxideexceeded...

Báo cáo khoa học: Synthesis and characterization of Pi4, a scorpion toxin from Pandinus imperator that acts on K+ channels doc

... side-chain protecting groups of sPi4 trifunctional residues were:tert-butyl (t-Bu) for Ser, Thr, Tyr, Asp, and Glu; trityl (Trt) for Cys, Asn, and Gln; pentamethylchroman (Pmc) for Arg, and tert-butyloxycarbonyl ... thesidechains of Glu332 of each rat Kv1.2 a-subunit(Kv1.2 channel is composed of four a-subunits) and Arg10, Arg19, Lys30 and Lys33 of Pi4. The Lys26 sidechain of Pi4 enters into the ion channel pore and ... atoms of the P-domainselectivity ﬁlter. Residue Tyr35 of Pi4 is involved in ahydrophobic cluster of aromatic residues consisting of Trp344, from one of the four Kv1.2 a-subunits, and Trp345and...

facile synthesis and characterization of novel nanocomposites

... Chemistry and Physics 100 (2006) 507–512Facile synthesis and characterization of novel nanocomposites of titanate nanotubes and rutile nanocrystalsJiaguo Yu∗, Huogen YuState Key Laboratory of Advanced ... nanocrystal particles of about 5 nm could uniformly attach to the outersurface and in the inner of the titanate nanotubes, forming an interesting and novel nanocomposite structure. Adjusting reaction ... before the actual measurements.3. Results and discussionFig. 1 shows the TEM, HRTEM images and SAED pattern of the starting material (rutile) and the products. The particle size of the starting...

hydrothermal synthesis and characterization of - feooh and fe2o3 uniform nanocrystallines

... Journal of Alloys and Compounds 433 (2007) 216–220Hydrothermal synthesis and characterization of ␣-FeOOH and ␣-Fe2O3uniform nanocrystallinesXiaohe Liua,b, ... crystal.Fig. 5A and B shows scanning electron microscope images of a typical sample of fusiform ␣-Fe2O3nanocrystallines obtainedat 140◦C for 24 h and indicate the large quantity and gooduniformity ... con-trolled size and shape have attracted vast attention because of their size and shape-dependent properties and great potentialapplications. Considerable effort has been devoted to the design and controlled...

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