Started in 1985 Semimonthly
ISSN 1005-0302
CN 21-1315/TG
Impact factor:6.155

The journal has been awarded the excellent periodical in China, and its articles are covered by SCI, EI, CA, SA, JST, RJ, CSA, MA, EMA, AIA etc., PASCAL web. ISI web of Science,SCOPUS.

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      20 June 2015, Volume 31 Issue 6 Previous Issue    Next Issue
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    Orginal Article
    Mass Transport in Nanowire Synthesis: An Overview of Scalable Nanomanufacturing
    Matthew J. Crane, Peter J. Pauzauskie
    J. Mater. Sci. Technol., 2015, 31 (6): 523-532.  DOI: 10.1016/j.jmst.2015.01.009
    Abstract   HTML   PDF
    The ability to rationally engineer the growth and nanomanufacturing of one-dimensional nanowires in high volumes has the potential to enable applications of nanoscale materials in a diverse range of fields including energy conversion and storage, catalysis, sensing, medicine, and information technology. This review provides a roadmap for the development of large-scale nanowire processing. While myriad techniques exist for bench-scale nanowire synthesis, these growth strategies typically fall within two major categories: 1) anisotropically-catalyzed growth and 2) confined, template-based growth. However, comparisons between growth methods with different mass transport pathways have led to confusion in interpreting observations, in particular Gibbs-Thomson effects. We review mass transport in nanowire synthesis techniques to unify growth models and to allow for direct comparison of observations across different methods. In addition, we discuss the applicability of nanoscale, Gibbs-Thomson effects on mass transport and provide guidelines for the development of new growth models. We explore the scalability of these complex processes with dimensionless numbers and consider the effects of pressure, temperature, and precursor material on nanowire growth.
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    Tailoring Optical and Plasmon Resonances in Core-shell and Core-multishell Nanowires for Visible Range Negative Refraction and Plasmonic Light Harvesting: A Review
    Sarath Ramadurgam, Tzu-Ging Lin, Chen Yang
    J. Mater. Sci. Technol., 2015, 31 (6): 533-541.  DOI: 10.1016/j.jmst.2015.01.004
    Abstract   HTML   PDF
    Semiconductor nanowires (NWs) are sub-wavelength structures which exhibit strong optical (Mie) resonances in the visible range. In addition to such optical resonances, the localized surface plasmon resonances (LSPRs) in metal-semiconductor core-shell (CS) and core-multishell (CMS) NWs can be tailored to achieve novel negative-index metamaterials (NIM), extreme absorbers, invisibility cloaks and sensors. Particularly, in this review, we focus on our recent theoretical studies which highlight the versatility of CS and CMS NWs for: 1) the design of negative-index metamaterials in the visible range and 2) plasmonic light harvesting in ultrathin photocatalyst layers for water splitting. Utilizing the LSPR in the metal layer and the magnetic dipole (Mie) resonance in the semiconductor shell under transverse electric (TE) polarization, semiconductor-metal-semiconductor CMS NWs can be designed to exhibit spectrally overlapping electric and magnetic resonances in the visible range. NWs exhibiting such double resonances can be considered as meta-atoms and arrayed to form polarization dependent, low-loss NIM. Alternatively, by tuning the LSPR in the TE polarization and the optical resonance in the transverse magnetic (TM) polarization of metal-photocatalyst CS and semiconductor-metal-photocatalyst CMS NWs, the absorption within ultrathin (sub-50 nm) photocatalyst layers can be substantially enhanced. Notably, aluminum and copper based NWs provide absorption enhancement remarkably close to silver and gold based NWs, respectively. Further, such absorption is polarization independent and remains high over a large range of incidence angles and permittivity of the medium. Therefore, due to the tunability of their optical properties, CS and CMS NWs are expected to be vital components for the design of nanophotonic devices.
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    InAs Nanowire Devices with Strong Gate Tunability: Fundamental Electron Transport Properties and Application Prospects: A Review
    Dong Liang, Juan Du, Xuan P.A. Gao
    J. Mater. Sci. Technol., 2015, 31 (6): 542-555.  DOI: 10.1016/j.jmst.2015.01.006
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    The high electron mobility has granted indium arsenide (InAs) nanowires (NWs) as an important class of nanomaterials for high performance electronics such as field-effect transistors (FETs). We reviewed recent progresses on the studies of quantum coherence, gate tunable one-dimensional (1D) confinement and spin orbit interaction (SOI) in InAs NW based electronic and thermoelectric transport devices. We also demonstrated gas sensing response of InAs NW FETs and elucidated the mechanism via a gating experiment. By using InAs NWs as an example, these fundamental transport studies have shed important lights on the potential thermoelectric, spintronic and gas sensing applications of semiconductor NWs where the 1D confinement, SOI or surface states effects are exploited.
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    Synthesis, Characterizations and Applications of Cadmium Chalcogenide Nanowires: A Review
    Liubing Huang, Jia Grace Lu
    J. Mater. Sci. Technol., 2015, 31 (6): 556-572.  DOI: 10.1016/j.jmst.2014.12.005
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    Cadmium chalcogenide nanowires have demonstrated superior electrical and optical properties, and have emerged as prominent building blocks for nanoscale electronic and optoelectronic devices. In addition to the effort devoted to advance techniques of fabricating high quality nanowires, much has been endeavored to elucidate their unique physical properties for better design and development of functional devices with low power consumption and high performance. Herein, this article provides a comprehensive review of the forefront research on cadmium chalcogenide nanowires, ranging from material synthesis, property characterizations, and device applications.
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    Synthesis, Properties, and Biological Application of Perfect Crystal Gold Nanowires: A Review
    Mijeong Kang, Hyoban Lee, Taejoon Kang, Bongsoo Kim
    J. Mater. Sci. Technol., 2015, 31 (6): 573-580.  DOI: 10.1016/j.jmst.2015.01.007
    Abstract   HTML   PDF
    In the last decade, numerous kinds of nanoscale materials have been created. Their characteristics are critically influenced by their synthetic or fabrication methods. In this review article, we introduce perfect crystal gold nanowires (Au NWs) synthesized by vapor transport method and summarize their material properties and biological applications. Single-crystalline Au NWs having no defects or twins show unique mechanical, electrical, and electrochemical characteristics. Notably, they are exceptionally competent in penetrating cells or tissues with minimum biological damage and in the electrical analysis and manipulation of biological activities in the cells and/or tissues. It is expected that the Au NWs would give us technological breakthrough in diverse applications such as nanoscale functional components as well as new insights in fundamental material science.
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    Flexible Transparent Conductive Films on the Basis of Ag Nanowires: Design and Applications: A Review
    Weiwei He, Changhui Ye
    J. Mater. Sci. Technol., 2015, 31 (6): 581-588.  DOI: 10.1016/j.jmst.2014.11.020
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    Transparent conductive films are used ubiquitously in optoelectronic devices. The properties of transparent films are extremely important for device performance, and the specifications vary according to types of devices. Over the past few years, various types of transparent conductive films on the basis of nanomaterials have emerged, and among these materials, silver nanowire networks show promising performance and represent a viable alternative to the commonly used, scarce and brittle indium tin oxide. In this paper, the working principle and the design protocol of Ag nanowire network flexible transparent conductive films are reviewed, and the applications of Ag nanowires transparent conductive film are also briefly introduced. Concluding remarks are provided to propose future research in this field towards real-world applications.
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    Recent Progress on Fabrications and Applications of Boron Nitride Nanomaterials: A Review
    Xiang-Fen Jiang, Qunhong Weng, Xue-Bin Wang, Xia Li, Jun Zhang, Dmitri Golberg, Yoshio Bando
    J. Mater. Sci. Technol., 2015, 31 (6): 589-598.  DOI: 10.1016/j.jmst.2014.12.008
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    Boron nitride (BN) nanostructures with complementary functions to their carbon counterparts are one of the most intriguing nanomaterials. Here we devote a compact review on the syntheses of BN nanomaterials: typical zero-dimensional (0D) fullerenes and nanoparticles, one-dimensional (1D) nanotubes and nanoribbons, two-dimensional (2D) nanosheets as well as three-dimensional (3D) nanoporous BN. Combining low-dimensional quantum confinement and surface effects with unique physical and chemical properties of BN, e.g. excellent electric insulation, wide band gap, and high chemical and thermal stability, BN nanomaterials have drawn particular attention in a variety of potential applications, e.g. luminescence, functional composites, hydrogen accumulators, and advanced insulators, which are also reviewed.
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    Defects in Graphene: Generation, Healing, and Their Effects on the Properties of Graphene: A Review
    Lili Liu, Miaoqing Qing, Yibo Wang, Shimou Chen
    J. Mater. Sci. Technol., 2015, 31 (6): 599-606.  DOI: 10.1016/j.jmst.2014.11.019
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    Graphene has attracted immense investigation since its discovery. Lattice imperfections are introduced into graphene unavoidably during graphene growth or processing. These structural defects are known to significantly affect electronic and chemical properties of graphene. A comprehensive understanding of graphene defect is thus of critical importance. Here we review the major progresses made in defect-related engineering of graphene. Firstly, we give a brief introduction on the types of defects in graphene. Secondly, the generation and healing of the graphene defects are summarized. Then, the effects of defects on the chemical, electronic, magnetic, and mechanical properties of graphene are discussed. Finally, we address the associated challenges and prospects on the future study of defects in graphene and other nanocarbon materials.
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    Flexible One-Dimensional Nanostructures: A Review
    Bin Yuan, Ludovico Cademartiri
    J. Mater. Sci. Technol., 2015, 31 (6): 607-615.  DOI: 10.1016/j.jmst.2014.11.015
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    This review discusses the recent reports on one-dimensional (1D) nanostructures with unusual flexibility. We discuss the importance that flexibility could have in future applications of nanowires and other nanostructures, and detail the two main approaches that have been followed to this day to synthesize highly flexible 1D nanostructures. One approach is based on making crystals in which one or two dimensions of the structure are comparable in size with the unit cell. Such thinness has been shown to provide unusual flexibility. The other approach conjoins hard nanostructures with flexible joints.
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    A Focused Laser Beam: A Useful and Versatile Tool for 1D Nanomaterials Research: A Review
    Junpeng Lu, Sharon Xiaodai Lim, Chorng Haur Sow
    J. Mater. Sci. Technol., 2015, 31 (6): 616-629.  DOI: 10.1016/j.jmst.2014.12.006
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    One-dimensional (1D) nanomaterials have generated considerable interest amongst researchers because of their potential as fundamental building block in future nano- and micro-electronic devices. In this article, we present a review of a focused laser beam system as a versatile tool for the manipulation, structural transformation, micropatterning and chemical modification of 1D nanomaterials. This tool was found to be effective in patterning and modifying various physical and chemical properties of the pristine 1D nanomaterials. It also aids in the fabrication process of heterostructures and 1D nanomaterial based devices. Finally, we present the implementation of the focused laser beam setup as a valuable tool in the study of the origins and photoresponse mechanism of the 1D nanomaterial devices.
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    VO2 (B) Nanosheets as a Cathode Material for Li-ion Battery
    Qiang Wang, Jing Pan, Ming Li, Yuanyuan Luo, Hao Wu, Li Zhong, Guanghai Li
    J. Mater. Sci. Technol., 2015, 31 (6): 630-633.  DOI: 10.1016/j.jmst.2014.11.017
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    VO2 (B) nanosheets were prepared by a liquid-phase exfoliation from VO2 (B) bulk. The lithium storage properties of VO2 (B) nanosheets as capacity cathode materials for rechargeable lithium secondary batteries were investigated. It was found that the nanosheets with the thickness of several nanometers and width of tens of nanometer had a preferential growth direction along [001] orientation. By comparing with VO2 (B) bulk, the VO2 (B) nanosheets showed a higher initial discharge capacity and a slower capacity fading rate. The reasons for these phenomena were discussed and analyzed.
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    Fabrication of Two Types of Ordered InP Nanowire Arrays on a Single Anodic Aluminum Oxide Template and Its Application in Solar Cells
    Jun Zhang, Ling Jin, Siqian Li, Jian Xie, Fangyu Yang, Jinxia Duan, Tiehan-H. Shen, Hao Wang
    J. Mater. Sci. Technol., 2015, 31 (6): 634-638.  DOI: 10.1016/j.jmst.2014.12.003
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    Two types of ordered InP nanowire arrays have been prepared on the same anodic aluminum oxide template by a template-assisted metallo-organic chemical vapor deposition technique. When using template with an appropriate pore size, free-standing wires on the template surface and highly ordered wires in the nanochannels of the same template can be simultaneously achieved. The highly ordered InP nanowire arrays in the nanochannels serve as an n-type semiconductor to assemble the p-n heterojunction solar cell with p-type Cu2O. Such a Cu2O/InP p-n heterojunction solar cell possesses a power conversion efficiency of 1.55%.
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    Synthesis of Al-doped ZnO Nanorods via Microemulsion Method and Their Application as a CO Gas Sensor
    Sang Kyoo Lim, Seong Hui Hong, Sung-Ho Hwang, Won Mi Choi, Soonhyun Kim, Hyunwoong Park, Min Gi Jeong
    J. Mater. Sci. Technol., 2015, 31 (6): 639-644.  DOI: 10.1016/j.jmst.2014.12.004
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    Aluminum doped ZnO (AZO) nanorods were synthesized by microemulsion method with different types of surfactants. The phase and the morphology of the above nanorods were investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). SEM observations showed that the ZnO nanorods had diameters around about 50-200 nm and lengths up to several micrometers. The CO gas sensing properties of the AZO nanorods were tested at operating temperatures of 200, 300, 350 and 400 °C. It was found that AZO nanorods based sensor exhibited the highest sensitivity to CO at 350 °C.
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    1D Ceria Nanomaterials: Versatile Synthesis and Bio-application
    Xueying Ge, Zhenxing Li, Quan Yuan
    J. Mater. Sci. Technol., 2015, 31 (6): 645-654.  DOI: 10.1016/j.jmst.2015.01.008
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    Ceria has emerged as a fascinating and lucrative material in bio-application, for instance, disease treatment, bioimaging and drug delivery due to its abilities of transforming oxidation states between Ce4+ and Ce3+ and scavenging free radicals, which can produce biological effect, such as being potentially antioxidant towards reactive oxygen species. Recently, many studies about one dimension (1D) CeO2 nanomaterials have received much attention because of the unique properties of their length and aspect ratio. We highlight here current research activities focused on the bio-application of 1D ceria nanomaterials. The synthesis methods of 1D cerium oxide nanomaterials were introduced. Several synthesis routes, including template, hydrothermal, sonochemical and other methods, were then discussed with examples developed by recent research. The differences among these methods were also analyzed. This review provides a comprehensive introduction to the synthesis of 1D ceria, its potential applications in biological fields and perspectives on this exciting realm.
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    Sputtering Deposition of Ultra-thin α-Fe2O3 Films for Solar Water Splitting
    Lichao Jia, Karsten Harbauer, Peter Bogdanoff, Kluas Ellmer, Sebastian Fiechter
    J. Mater. Sci. Technol., 2015, 31 (6): 655-659.  DOI: 10.1016/j.jmst.2014.10.007
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    Ultra-thin α-Fe2O3 (hematite) films have been deposited by radio frequency (RF) sputtering technique and photoelectrochemically investigated towards their ability to oxidize water. By varying the deposition power and time as well as the sputter gas flow (argon), the microstructure and morphology of the film were optimized. It was found that the increment in the film thickness resulted in the loss of efficiency for solar water oxidation. The film with a thickness of 27 nm exhibited the best result with a maximum photocurrent of 0.25 mA cm-2 at 1.23 VRHE. Addition of small amounts of O2 to the sputter gas improved the photoactivity significantly.
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    Adhesion of an Ultrasmall Nanoparticle on a Bilayer Membrane is Still Size and Shape Dependent
    Hao Yang, Ling Wang, Bing Yuan, Kai Yang, Yuqiang Ma
    J. Mater. Sci. Technol., 2015, 31 (6): 660-663.  DOI: 10.1016/j.jmst.2014.09.012
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    It has been found recently that an ultrasmall nanoparticle whose size is smaller than the thickness of a cell membrane has unique roles in biomedical applications including the development of next generation of drugs or advanced nanoscale cargo carriers. However, the effect of physical properties of an ultrasmall nanoparticle on its adhesion to a bilayer membrane, which is a key step for Nano-Bio interaction as well as the biomedical applications, is still largely unknown. By using molecular dynamics, we find that both size and shape of an ultrasmall nanoparticle strongly affect its adhesion states on a bilayer membrane (e.g., adhesion, separation or entwined by polymer chains). Interestingly, our simulations show that with decreasing particle size, the effect of particle shape becomes even more evident for the adhesion behavior. It is indicated that the competition between nanoparticle-polymer binding and polymer chain deformation, both of which are influenced by particle size and shape, determines the final adhesion states of an ultrasmall nanoparticle. Our results are helpful for the full understanding of interaction mechanism between nanoparticles and cell membranes and the practical applications of such ultrasmall nanoparticles.
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    Effect of Palladium Nanoparticles on Photocatalytic Characteristics of N doped Titania Catalyst
    Jong-Ho Lee, Jeong-Il Youn, Young-Jig Kim, Han-Jun Oh
    J. Mater. Sci. Technol., 2015, 31 (6): 664-669.  DOI: 10.1016/j.jmst.2014.11.023
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    To improve the photocatalytic efficiency of TiO2 nanotubular catalyst, N doped and Pd decorated titania nanotubes was successfully synthesized via anodizing, hydrazine hydrate treatment and photoreduction of Pd ions. The small Pd nanoparticles were precipitated on TiO2 nanotubes through photoreduction of Pd ions, and its distribution is relatively homogeneous. From X-ray photoelectron spectrometry (XPS) result, the N 1s spectrum represents two peaks with binding energy at 399.7 and 400.7 eV, which suggests that the nitrogen elements doped by hydrazine hydrate treatment are located in interstitial sites of the TiO2 crystalline structure. For N doped TiO2 nanotubes with Pd particles, a high photocurrent was detected due to increase of interface charge carrier separation rate. Moreover, N doped and Pd decorated TiO2 nanotubes exhibited much higher dye destruction efficiency and rate constant due to the synergistic effect of the N dopant and the Pd deposition on TiO2 nanotubes.
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    Deep Ultraviolet Emission from Water-Soluble SnO2 Quantum Dots Grown via a Facile “Top-Down” Strategy
    Shusheng Pan, Wei Lu, Zhaoqin Chu, Guanghai Li
    J. Mater. Sci. Technol., 2015, 31 (6): 670-673.  DOI: 10.1016/j.jmst.2014.09.017
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    Tin oxide (SnO2) is a promising wide bandgap semiconductor for next generation ultraviolet (UV) non-polar optoelectronic devices applications. The development of SnO2-based optoelectronic devices is obsessed by its low exciton emission efficiency. In this study, quantum confined SnO2 nanocrystals have been fabricated via pulsed laser ablation in water. The SnO2 quantum dots (QDs) possess high performance exciton emission at 297-300 nm light in water. The exciton emission intensity and wavelength can be slightly tuned by laser pulse energy and irradiation time. Optical gain has been observed in SnO2 QDs. Therefore, SnO2 QDs can be a promising luminescence material for the realization of deep UV nano-emitter and lasing devices.
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ISSN: 1005-0302
CN: 21-1315/TG
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