Core/shell nanowires

Goebl JA, Black RW, Puthussery J, Gibhn J, Kosel TH, Kuno M (2008) Solution-based II-VI core/shell nanowire heterostructures. J Am Chem Soc 130 14822-14833 Hoffmann MR, Martin ST, Choi W, Bahnemann DW (1995) Environmental applications of semiconductor photocatalysis. Chem Rev 95 69-96... 

Luo T, Ai Z, Zhang L (2008) Fe Fe203 core-shell nanowires as iron reagent. 4. Sono-Fenton degradation of pentachlorophenol and the mechanism analysis. J Phys Chem C 112(23) 8675-8681... 

The fundamental physical properties of nanowire materials can be improved even more to surpass their bulk counterpart using precisely engineered NW heterostructures. It has been recently demonstrated that Si/Ge/Si core/shell nanowires exhibit electron mobility surpassing that of state-of-the-art technology.46 Group III-V nitride core/shell NWs of multiple layers of epitaxial structures with atomically sharp interfaces have also been demonstrated with well-controlled and tunable optical and electronic properties.47,48 Together, the studies demonstrate that semiconductor nanowires represent one of the best-defined nanoscale building block classes, with well-controlled chemical composition, physical size, and superior electronic/optical properties, and therefore, that they are ideally suited for assembly of more complex functional systems. 

ZnO A1203 and ZnO-Ti02 core-shell nanowire dye-sensitized solar cells,... 

Hsu, C.-Y., et ah, Supersensitive, ultrafast, and broad-band tight-harvesting scheme employing carbon nanotube/Ti02 core-shell nanowire geometry. ACS Nano, 2012. 6(8) p. 6687-6692. 

Parkinson P, Joyce HJ, Gao Q, Tan HH, Zhang X, Zon J, Jagadish C, Heiz LM, Johnston MB (2009) Carrier lifetime and mobility enhancement in nearly defect-free core-shell nanowires measured using time-resolved terahertz spectroscopy. Nano Lett 9 3349... 

Spectroscopy of lanthanides doped in core-shell, nanowires, nanotubes, and other... 

Montazeri M, Fichenscher M, Smith LM, Jackson HE, Yarrison-Rice J, Kang JH, Gao Q, Tan HH, Jagadish C, Guo YN, Zou J, Pistol ME, Pryor CE (2010) Direct measure of strain and electronic stmcture in GaAs/GaP core-shell nanowires. Nano Lett 10 880-886... 

Cao J, Sun J-Z, Hong J, Li H-Y, Chen H-Z, Wang M (2004) Carbon nanotube/CdS core-shell nanowires prepared by a simple room-temperature chemical reduction method. Adv Mater 16 84... 

Son, M., Jeong, S., Jang, D.J., 2014. Laser-induced nanowelding of linearly assembled and silica-coated gold nanorods to fabricate Au Si02 core—shell nanowires. J. Phys. Chem. C 118 (11), 5961-5967. 

Zheng, H. M., T. Zhai, M. H. Yu et al. 2013. Ti02 C core-shell nanowires for high-performance and flexible solid-state supercapacitors. Journal of Materials Chemistry C 1 225-229. 

Wang, J., Du, N., Zhang, H., Yu, J., and Yang, D. [2011]. Cu-Sn core-shell nanowire arrays as three-dimensional electrodes for lithium-ion batteries,/ Phys. Chem. C, 115, pp. 23620-23624. 

Hwang, Y.J., Boukai, A., Yang, P.D. High density n-Si/n-Ti02 core/shell nanowire arrays with enhanced photoactivity. Nano Lett. 9, 410 15 (2009)... 

Fig. 10 (A) Schematic illustration of the in situ oxidation process for Ag/AgCl core-shell nanowires (B) Photocatalytic activities of Ag/AgCI core-shell nanowires...

Cui LF, Yang Y, Hsu CM, Cui Y (2009) Carbon - silicon core - shell nanowires as high capacity electrode for lithium ion batteries. Nano Lett 9 3370-3374... 

Wang H, Xu C, Cheng E, Zhang M, Wang S, Jiang SP (2008) Pd/Pt core-shell nanowire arrays as highly effective electrocatalysts for methanol electrooxidation in direct methanol fuel cells. Electrochem Commun 10(10) 1575-1578... 

PtML/Pd interlayer/IrCo Pt hollow spheres (from dealloying PtML/Ag) Pd-Pt bimetallic nanodendrites Pt-Pd core-shell nanowires ... 

Kotmigsmaim C, Santnlli AC, Gmig K, Vukmirovic MB, Zhou W-P, Sutter E, Wong SS, Adzic RR (2011) Enhanced electrocatalytic performance of processed, ultrathin supported Pd-Pt core-shell nanowire catalysts fm the oxygen reduction reactiorr J Am Chem Soc 133 9783—9795... 

Kim H, Cho J (2008) Superior lithium electroactive mesoporous Si carbon core-shell nanowires for lithium battery anode material. Nano Lett 8 3688-3691. doi 10.1021/nl801853x... 

Mesoporous Si-C core-shell nanowires (NWs) were prepared by using a SBA-15 template. As-prepared NWs exhibit excellent first reversible capacity of 3136 mAh/g and a coulombic efficiency of 86% at a rate of 0.2C (600 mA/g) between 1.5 and 0 V. After 80 cycles, the capacity remains at about 2700 mAh/g at 0.2C. The rate performance is good and the capacity at 2C (6000 mA/g) is about 2500 mAh/g. ... 

In recent decades, there have been many attempts to fabricate CNT/PANI composites [329-337]. The incorporation of nanotubes into PANI can result in novel composite materials with enhanced electrical, electrochemical, and mechanical properties. Eor example, Yu et al. prepared MWCNT/PANI nanocomposites through in situ inverse microemulsion synthesis [334]. Such nanocomposites are characterized by very strong interaction between MWCNTs and conducting polymers. Moreover, MWCNT/PANI core-shell nanowires exhibited better thermal stability and electrical conductivity than the pure PANI. The electrical conductivity of MWCNT/PANI composite containing 1 wt% of MWCNTs increased by one order of magnitude (pure PANI 0.02Scm MWCNT/PANI composite 0.20Scm-i) [334]. 

Veiy recently, CdSe/CdS core-shell nanowires have been studied aimed at photocatalytic generation of hydrogen, which indicated that the photo-catalytic efficiency follows an order CdSe/Au NP[Pg.105]

Chen, X.Q. et al Carbide-derived nanoporous carbon and novel core-shell nanowires. Chemistry of Materials 18, 753-758, 2006. 

Yang et alP studied core-shell nanowires formed by Si and Ge and constructed as cut-outs of the crystal. They used ab initio, density-fimctional calculations and considered wires with a diameter up to about 4 mn. They found indeed that, for some cases, some of the orbitals are confined to one or the other of the two components. 

A copredpitation route to LaP04 Ln + nanowires and LaP04 Ln / LaP04 core-shell nanowires (where La = Ce +, Tb ) has recently been reported by Yang et Rare earth-doped nanomaterials are of considerable interest due to their photoluminescent properties, making them... 

Fig. 1 (a) ZnSe Nanowires with Bi seeds and (b) ZnSe/CdSe core/shell nanowires. Reproduced with pemrission from reference 7. Copyright The Royal Society of Chemistry 2011. 

OA) and OAm and heated to 90 °C to produce a CdS shell of desired thickness. Then the reaction mixture was heated to 130 °C to obtain CdSe/ CdS core/shell nanowires of ca. 35 nm core and ca. 4nm shell thickness. The mechanism of the formation of CdSe/CdS consists of two steps nucleation and growth of the CdS nanorods over CdSe NWs followed by the CdS intrarod ripening to form ribbon-like structures. 

Zhang, H.F., Wang, C.M. and Wang, L.S. (2002) Helical crystalline SiC/Si02 core shell nanowire. Nano Letters, 2, 941. 

Synthesis and Growth Mechanism of SiC/Si02 Core-Shell Nanowires by Thermal Evaporation Method... 

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