Báo cáo hóa học: " Synthesis and Photoluminescence Properties of Porous Silicon Nanowire Arrays" pdf

... etching time and doping lever of the silicon wafer. The diffusion of silver ions could lead to the nucleation of silver nanoparti- cles on the nanowires and open new etching ways. Like porous silicon ... in a 1826 Nanoscale Res Lett (2010) 5:1822–1828 123 NANO EXPRESS Synthesis and Photoluminescence Properties of Porous Silicon Nanowire Arrays Linhan Lin • Sipi...

Ngày tải lên: 21/06/2014, 08:20

... measurements and data analysis, and drafted the manuscript. DG and DX made the conception and design of the manuscript. ZZ2 carried out the XPS measurements and data analysis. JLZ and ZZ1 participated ... experiment and theroy, such as, Mn [5,6], Gd [7], and Cr [8,9]. Compared with GaN, ZnO has a lot of outs tanding superiorities, as is known to all, which has a wide band-...

Ngày tải lên: 20/06/2014, 22:20

... process, corre- sponding to the one band of the v1 mode and two bands of the v3 mode (C 3v symmetry), respectively [24]. The ATR- FTIR spectra of starting materials and c-Fe 2 O 3 SNTs show similar ... physical and chemical properties based on their high intrinsic anisotropy and surface activity [4, 5]. Especially, understanding the correlation between the magnetic properties...

Ngày tải lên: 21/06/2014, 17:20

... mmol) CoCl 2 Á6H 2 O were dissolved in the solvent composed of 80 ml of water and 40 ml of ethanol. After that, 7.3 g (24 mmol) of sodium oleate and 7 ml of oleic amine were added into the above solution ... Hysteresis loop of the as-synthesized CoFe 2 O 4 nanoparticles measured at a 300 K, b 10 K Table 1 Comparison of magnetic properties of the as-synthesized cobalt fer...

Ngày tải lên: 21/06/2014, 18:20

... 323 (2000) Fig. 6 Photoluminescence spectra of b-SiC NWs 256 Nanoscale Res Lett (2010) 5:252–256 123 NANO EXPRESS Synthesis and Photoluminescence Property of Silicon Carbide Nanowires Via Carbothermic ... FE-SEM and TEM image of the wires (Fig. 4c and the inset of Fig. 5a). The chemical composition of these SiC NWs were checked by EDS, and the result is shown in Fig....

Ngày tải lên: 22/06/2014, 00:20

... Foundation of China (Grant Nos. 60778040, 10804036, 60878039), the Science and Technology Bureau of Key Program for Ministry of Education (Item No. 207025), and the Development of the Science and Technology ... surfaces. Conclusions WSe 2 nanorods of 10–50 nm in diameters and 100–400 nm in lengths were prepared successfully by solid-state reac- tion of the tungsten and s...

Ngày tải lên: 22/06/2014, 01:20

... results of XRD and TEM, the FTIR and FT-Raman spectra of the HAp show the absorption bands characteristic of hydroxyapatite. XPS results provide the additional evidence for the successful doping of ... Constantin 3 and Daniela Predoi 1* Abstract Synthesis of nanosized particle of Ag-doped hydroxyapatite with anti bacterial properties is in the great interest in the devel...

Ngày tải lên: 20/06/2014, 23:20

... arrays [13], Fe, Co, and Ni nanowires, nanotubes, and nanoparticles arrays [5,8,14-19], FeNi ferromagnetic alloy, CoPt nanotubes [9], and so on. The growth and magnetic properties of magnetic nanomaterials ... details 1 Laboratory of Condensed Matter Spectroscopy and Opto-Electronic Physics, and Key Laboratory of Artificial Structures and Quantum Control (Ministry of E...

Ngày tải lên: 21/06/2014, 04:20

... analysis, and drafted the manuscript. LS and PB conceived of the study. HA, ES, LA, and LS participated in the analysis and in the production of a final version of the manuscript. All authors read and ... the majo rity sp in and a semiconductor-like behavior for the minority spin. The band structures of the SL for spin up and spin down are depicted in Figure 2c. A band g...

Ngày tải lên: 21/06/2014, 05:20

... the growth angle effect of the films for optical properties. The thickness of the ZnO thin films was c heck ed by FE- SEM and was fixed at 100 nm. Three growth angles (0°, 15°, and 30°) of the columnar ... cross- section view of the 0° growth-angle d columnar ZnO film. Columnar ZnO f ilms with angles of 15° and 30° are shown in Figure 2b-1, c-1. To get a magnified view of t...

Ngày tải lên: 21/06/2014, 17:20