Photoluminescence of silicon nanowires obtained by epitaxial chemical vapor deposition

... 2008 PACS: 71.35.Ee 78.55.Ae 78.67.Àn Keywords: Nanowires Silicon Photoluminescence Exciton Electron-hole-plasma abstract We have carried out photoluminescence measurements of silicon nanowires (SiNWs) obtained by the chemical vapor deposition ... Photoluminescence of silicon nanowires obtained by epitaxial chemical vapor deposition O. Demichel a, Ã...

Ngày tải lên: 16/03/2014, 15:19

... (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 ... evolution of silicon nanowires (Si-NWs) on Si (0 0 1) and (1 1 1) substrates synthesized using nanoscale Au–Si island-catalyzed rapid thermal chemical vapor deposit...

Ngày tải lên: 16/03/2014, 15:15

... oxide exceeded the growth rate of crystal silicon, outer layer of silicon oxide will surround the crystal sil- icon. As a result, the growth of crystal silicon ceased and silicon oxide of outer layer coalesced together ... The peculiar feature of the branch suggests that there may exist a competitive growth between crystal silicon core and outer layer of silicon oxide....

Ngày tải lên: 16/03/2014, 15:09

... Iron-catalytic growth of prism-shaped single-crystal silicon nanowires by chemical vapor deposition of silane Chen Li a,b,1 , Chi Gu a,b,1 , Zengtao Liu a,b , ... 2005 Abstract Single-crystal silicon nanowires with the prism structures were synthesized by chemical vapor deposition of SiH 4 gas at 450 °C. Fe particles which were located at the tip of the CNTs we...

Ngày tải lên: 16/03/2014, 15:06

... Deposition of carbon nanotubes on Si nanowires by chemical vapor deposition Y.F. Zhang, Y.H. Tang, Y. Zhang, C.S. Lee, I. Bello, S.T. Lee * Center of Super-Diamond & ... SiC can be formed by carbon atoms diusing into the Si NWs, CNTs could not be formed very well on the surface of nanowires because of both the volume change of the nanowires and breaking of t...

Ngày tải lên: 16/03/2014, 15:04

... HRTEM image of Si nanowire using Au. (d) HRTEM image of Si nanowire using Pt. Both were single crystal. (e) EDS line mapping of Si nanowires using Au catalyst. (f) EDS line mapping of Si nanowires ... Au, without loss of components by chemical reaction or evaporation. Thus, it has been demonstrated that Pt is a stable catalyst for the VLS mechanism. The growth rate of Si...

Ngày tải lên: 16/03/2014, 15:05

... 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 ... ther- mal evaporation [14±17] are two methods nor- mally used for the synthesis of SiNWs. The key point in these two methods is the formation of a sucient amount of silicon...

Ngày tải lên: 16/03/2014, 15:06

... Characterization of Tin-catalyzed silicon nanowires synthesized by the hydrogen radical-assisted deposition method Minsung Jeon ⁎ , Hisashi Uchiyama, Koichi Kamisako Department of Electronic and ... been synthesized by using various methods, such as chemical vapor deposition (CVD) [9], oxide-assisted [10], template-assisted [11] and laser ablation method [12] via well-know...

Ngày tải lên: 16/03/2014, 15:10

... crystalline silicon nanowires (SiNWs) with a diameter of ∼30 nm and length of tens of micrometers on Al 2 O 3 templates and silicon wafers were synthesized by the thermal evaporation of silicon monoxide ... 134 www.elsevier.com/locate/physe Silicon nanowires fabricated by thermal evaporation of silicon monoxide Junjie Niu a , Jian Sha a; b , Deren Yang a;∗ a State...

Ngày tải lên: 16/03/2014, 15:21

... synthesis of Si nanowires, devoid of metallic impurities. Fig. 3. (a) TEM image of a Si nanojunction obtained by procedure (i) with Si:C ratio of 1:1. (b) TEM image of a nanowire obtained by procedure ... SiNWs obtained by procedure (i) with a Si:C ratio of 1:1, (c) SiNWs obtained by procedure (i) with Si:C ratio of 1:0.5 and (d) SiNWs obtained in the grey po...

Ngày tải lên: 16/03/2014, 15:04