Molecular beam epitaxy-grown Bi4Te3 nanowires

Wang, G.; Lok, S. K.; Wong, G. K. L.; Sou, I. K.
December 2009
Applied Physics Letters;12/28/2009, Vol. 95 Issue 26, p263102
Academic Journal
With Au nanoparticles as the catalyst, the formation of Bi4Te3 nanowires was achieved at an optimized substrate temperature of around 330 °C. We found two growth mechanisms for the nanowires: a self-assembled growth mode through islands as the seed and a vapor-solid-solid growth mode through the assistance of Au catalyst nanoparticles, the decisive factor for which was identified as the density of the Au nanoparticles.


Related Articles

  • Onset of stacking faults in InP nanowires grown by gas source molecular beam epitaxy. Cornet, D. M.; Mazzetti, V. G. M.; LaPierre, R. R. // Applied Physics Letters;1/1/2007, Vol. 90 Issue 1, p013116 

    InP nanowires (NWs) were grown by gas source molecular beam epitaxy on InP (111)B substrates, using Au nanoparticles as a growth catalyst. The rod-shaped NWs exhibited hexagonal sidewall facets oriented along the {-211} family of crystal planes for all NW diameters, indicating minimal sidewall...

  • Vapor-liquid-solid growth of GaN nanowires by reactive sputtering of GaAs. Mohanta, P.; Chaturvedi, P.; Major, S. S.; Srinivasa, R. S. // AIP Conference Proceedings;Feb2013, Vol. 1512 Issue 1, p698 

    Uniformly distributed nanosized Au-Ga alloy particles were formed on ultrathin Au coated quartz substrate by sputtering of GaAs with argon at 700 °C. Subsequent deposition of GaN by reactive sputtering of GaAs in 100 % nitrogen results in the growth of GaN nanowires. X-ray diffraction...

  • Reliable solvothermal growth of diverse heterostructures based on CdS nanowires. Fan Yang; Shancheng Yan; Bojun Wang; Zhenhua Shuai; Mingxia Zhang // Advanced Materials Research;2014, Issue 887-888, p174 

    In the present study, the heterostructures of ZnO Nanoparticle (NP)/CdS nanowire (NW), SnO2NP/CdS NW, NiS NP/CdS NW, FeS NP/CdS NW, Ag2S NP/CdS NW, and Au NP/CdS NW have been successfully fabricated via the two-stage solvothermal process. Field-emission scan electron microscopy (FESEM),...

  • Size-Controlled Synthesis of Colloidal Gold Nanoparticles at Room Temperature Under the Influence of Glow Discharge. Xi Liang; Zhou-jun Wang; Chang-jun Liu // Nanoscale Research Letters;Jan2010, Vol. 5 Issue 1, p124 

    Highly dispersed colloidal gold (Au) nanoparticles were synthesized at room temperature using glow discharge plasma within only 5 min. The prepared Au colloids were characterized with UV–visible absorption spectra (UV–vis), X-ray photoelectron spectroscopy (XPS), and transmission...

  • Time-dependent growth of crystalline Au-nanoparticles in cyanobacteria as self-reproducing bioreactors: 1. Anabaena sp. Rösken, Liz; Körsten, Susanne; Fischer, Christian; Schönleber, Andreas; Smaalen, Sander; Geimer, Stefan; Wehner, Stefan // Journal of Nanoparticle Research;Apr2014, Vol. 16 Issue 4, p1 

    Customized metal nanoparticles are highly relevant in industrial processes, where they are used as catalysts and therefore needed on a large scale. An extremely economically and environmentally friendly way to produce metal nanoparticles is microbial biosynthesis, meaning the biosorption and...

  • Development of Silver-Coated Gold Nanoparticles and its Conjugation for Labeling on Lateral Flow Immunoassay. Makhsin, SITI Rabizah; Razak, KHAIRUNISAK Abdul; Noordin, Rahmah // Advanced Materials Research;2014, Vol. 1024, p273 

    This work describes the formation of silver-coated gold nanoparticles (Ag-AuNPs) using the seeding-growth method. 15 nm AuNPs seeds were synthesized using the citrate reduction method. In the growth stage, the adding sequence of seeds, ascorbic acid (AA), gold chloride (HAuCl4) and silver...

  • Molecular Beam Epitaxial Growth of GaAs on (631) Oriented Substrates. Cruz Hernández, Esteban; Pulzara Mora, Alvaro; Rojas Ramírez, Juan-Salvador; Contreras Hernández, Rocío; Méndez García, Víctor H.; López López, Máximo // AIP Conference Proceedings;2007, Vol. 885 Issue 1, p259 

    In this work, we report the study of the homoepitaxial growth of GaAs on (631) oriented substrates by molecular beam epitaxy (MBE). We observed the spontaneous formation of a high density of large scale features on the surface. The hilly like features are elongated towards the [-5, 9, 3]...

  • Stress Induced Growth of Sn Nanowires in a Single Step by Sputtering Method. Yadav, A.; Patel, N.; Miotello, A.; Kothari, D. C. // AIP Conference Proceedings;2015, Vol. 1665, p1 

    Sn nanowires in aluminum film have been synthesized in a single step by co-sputtering of Al and Sn targets. Due to immiscibility of Sn and Al, co-sputtering leads to generation of stress in the composite film. In order to attain thermodynamic equilibrium, Sn separates from Al and diffuses...

  • A 106-fold enhancement in the conductivity of a discotic liquid crystal doped with only 1% (w/w) gold nanoparticles. Holt, Lucy A.; Bushby, Richard J.; Evans, Stephen D.; Burgess, Andrew; Seeley, Gordon // Journal of Applied Physics;Mar2008, Vol. 103 Issue 6, p063712 

    The presence of 1% (w/w) of methylbenzene thiol coated gold nanoparticles increases the conductivity of the discotic liquid crystal 2,3,6,7,10,11-hexakis(hexyloxy)triphenylene (HAT6) by about two orders of magnitude in all three phases (crystal, columnar liquid crystal, and isotropic liquid)....


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics