Growth of silicon nanowires on UV structurable glass using self organized nucleation centres

... Physica E 38 (2007) 40–43 Growth of silicon nanowires on UV- structurable glass using self- organized nucleation centres K. Tonisch a,Ã , F. Weise a , M. Stubenrauch a , V. ... possibility of having grown silica or silicon nitride instead of pure silicon nanowires. However, the nanowires and the photostructurable glass were expected to contain mainly sili...

Ngày tải lên: 16/03/2014, 15:17

... investigation of Au and In as solvents for the growth of silicon nanowires on Si(1 1 1) via PVD by means of the well-known vapor–liquid–solid (VLS) me- chanism will be presented. Silicon nanowires ... the contact area between indium and silicon. This leads to larger droplets compared to those on the silicon oxide surface. The size and distribution of gold and indium d...

Ngày tải lên: 16/03/2014, 15:17

... direction. The late-stage after the creation of islands with the STM, the accumulation of silicon atoms on the tip apex wasgrowth rate was about three times lower than the early-stage growth ... distinguish mechanisms of the early stage and late stage of island growth. At the late stage, the transfer of silicon atoms from the STM tip by re-evaporation of the silicon tha...

Ngày tải lên: 16/03/2014, 15:32

... Computer simulations; Growth; Scanning tunneling microscopy; Silicon; Sputter deposition 1. Introduction clusters by Honig [14], several experimental inves- tigations on silicon clusters have ... observa- the step edge. A combination of armchair and tions on the growth of Si nanostructures on HOPG zigzag directions in the 2D-graphite hexagonal as follows. The average silicon...

Ngày tải lên: 16/03/2014, 15:34

... when using Fig. 1. Synthesis of Si nanowires using Au and Pt as catalysts. (a) Vertically-aligned Si nanowires using Au. (b) Vertically-aligned Si nanowires using Pt. Si nanowires using Pt are longer ... those for nanowires fabri- cated with Au. 2. Experimental Silicon nanowires were fabricated by the conventional CVD pro- cess using silicon tetrachloride (SiCl 4...

Ngày tải lên: 16/03/2014, 15:05

... 3. (a) Variation of wire density and diameter as a function of deposition temperature. (b) Histogram of diameter distribution of SiNWs and Au particle tips. (c) Growth direction of SiNWs deposited at ... Oriented silicon nanowires on silicon substrates from oxide-assisted growth and gold catalysts Yuan Yao a , Fanghua Li b , Shuit-Tong Lee a, * a Center of Super-Diamon...

Ngày tải lên: 16/03/2014, 15:06

... anisotropic growth of SiNW with a crystalline structure. A catalyst particle provides a site for absorption of vapor- phase silicon atoms. The continuous absorption induces the supersat- uration of the ... formed liquid alloy with silicon atoms, which leads to nucleation and growth of a SiNW [19]. Therefore, the diameter and location of the SiNW are determined by the featu...

Ngày tải lên: 16/03/2014, 15:09

... been conducted on the effects of UV irradiation on C. parvum than on bacteria and viruses because UV irradiation was not considered to be effective in inactivating C. parvum based on results of ... added to suspensions of C. parvum oocysts and the efficacy of UV irradiation in inactivating the oocysts was studied. Substances added and conditions of UV irradiation...

Ngày tải lên: 05/09/2013, 09:08

... corresponding to the (1 1 1) planes of silicon. The crystallinity of the nanowires is con- siderably higher when only argon was used instead of a mixture of argon and hydrogen. The role of hydrogen ... XRD pattern of the product, given in Fig. 2b, is char- acteristic of cubic silicon with a small impurity of silica. Reaction of silicon powder with activated car- bon i...

Ngày tải lên: 16/03/2014, 15:04

... xðqÞÞ 2 þðC 0 =2Þ 2 ; ð1Þ where xðqÞ is the phonon dispersion function, q is the normalized phonon momentum, C 0 is the natural phonon linewidth of crystalline silicon, and D is the size of crystal. Eq. (1) was used ... scattering spectra of the SiNWs and crystal silicon. A very sharp and Fig. 1. A typical SEM image of the morphology of aligned silicon nanowires of uniform...

Ngày tải lên: 16/03/2014, 15:06