Báo cáo hóa học: "Selective Growth of Vertical-aligned ZnO Nanorod Arrays on Si Substrate by Catalyst-free Thermal Evaporation" ppt

... layer, vertical-aligned ZnO nanorods have been grown on silicon substrate by thermal evaporation of ZnO C powder mixture [13–15]. Since the type of such nanorods growth is dominated by the carbothermal ... of electrons paralleling the cross-section of the nanorod Nanoscale Res Lett (2008) 3:309–314 311 123 NANO EXPRESS Selective Growth of Vertical-aligned ZnO...

Ngày tải lên: 22/06/2014, 01:20

... on a GaN -on- silicon substrate by a combination of electron beam (EB) lithography, fast atom beam (FAB) etching of GaN, and deep reactive ion etching (DRIE) of silicon. The patterned growth by ... fabricated on a GaN -on- silicon substrate by a combination of E B litho- graphy, FAB etching of GaN and DRIE of silicon [20]. Figure 2 illustrates scanning electron mi...

Ngày tải lên: 21/06/2014, 05:20

... power factor. Conclusions CMOS compatible process is adopted to implement the real silicon thermoelectric device. By using conventional CMOS process, we have manufactured n-/p-type silicon nanowires. ... Thus, sili- con has been considered as the impropriate material for the thermoelectric applications. However, recent research revealed the possibility of silicon as thermoelectric mate- r...

Ngày tải lên: 21/06/2014, 17:20

... dispersion of the tube during imidiza- tion process which resulted in strong bonding and thick coating of the matrix. The fracture behaviour of amine functionalized MWCNT nanocomposites show a strong bonding ... in Fig. 2. Characterization Fourier Transform Infrared Spectroscopy Functionalization of MWCNTs and conversion of polya- mic acid to polyimide (imidization) was confirmed by...

Ngày tải lên: 22/06/2014, 01:20

... may be helpful to create ver- satile one-dimensional Si nanostructures. Conclusion The bulk of previous studies have reported the growth of one-dimensional Si nanostructures (i.e., nanowires and NRs) ... Combinatorial Growth of Si Nanoribbons. Supporting Information Acknowledgements This research was supported by the Second Stage of Brain Korea 21 project in Division of...

Ngày tải lên: 21/06/2014, 01:20

... thickness gold are ‘XRD amorphous’. Conclusions In summary, experiments addressing a possible cata- lytic effect of gold on ZnO growth by r.f. magnetron sputtering under UHV conditions are presented. A moderate ... (Al 2 O 3 ) substrates by a ZnO target magnetron sputtering. The stoichiometry of the films was checked under different growth conditions by non-RBS spectro- sc...

Ngày tải lên: 21/06/2014, 02:20

... electrodeposition. a ions reduction on the Au electrode and random nucleation, b and c formation of several nanocrystals and growth in size, d preferred growth of a single crystal along a preferential ... group addressed this issue by using an in situ transmission electron microscope (TEM) technique, upon which some information on the in real growth and diffusion dynamics of...

Ngày tải lên: 21/06/2014, 18:20

... way of aggregating during reactive pro- cesses, which leads to the formation of various textures. By modification of reaction conditions and design of appro- priate reaction route, it may be possible ... 5). Conclusions We have demonstrated a convenient chemical route to synthesize carbon hollow spheres, hollow capsules and solid spheres by Mg-reduction of hexachlorobutadiene. Th...

Ngày tải lên: 22/06/2014, 00:20

... term antitumor protection in a significant proportion of mice. Conclusion: These data demonstrate that Doxil favorably changes the immunophenotype of a large fraction of the tumor that escapes ... therapy and suggest that this positive drug interaction results in significant expansion of the tumor fraction that is killed by the combined therapy. The favorable safety profiles of bo...

Ngày tải lên: 18/06/2014, 15:20

... describing similar qual- ity of life scales of patients with hypertension and those without any chronic condition [28,29]. One reason for this finding may be that hypertension is often asympto- matic ... the analysis of an additional impact of spe- cific comorbid conditions on QoL we selected patient groups with one single comorbid condition. Differences between these groups were an...

Ngày tải lên: 18/06/2014, 19:20