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  1. No Access

    Article

    A HfC nanowire point electron source with oxycarbide surface of lower work function for high-brightness and stable field-emission

    Electric field-induced point electron source is highly demanded for microscopy, spectroscopy, lithography, X-ray tubes, microwave devices, and data displays. However, the instability in emission current and re...

    Shuai Tang, Jie Tang, Ta-wei Chiu, Wataru Hayami, Jun Uzuhashi… in Nano Research (2020)

  2. No Access

    Article

    Ultrabright and monochromatic nanowire electron sources

    The resolution of the electron microscope is now largely limited by the performance of its electron source when various aberrations in the electron imaging system, especially spherical aberrations, are correct...

    Han Zhang, Jie Tang, **shi Yuan, Lu-Chang Qin in MRS Bulletin (2017)

  3. No Access

    Article

    An ultrabright and monochromatic electron point source made of a LaB6 nanowire

    Electron sources in the form of one-dimensional nanotubes and nanowires are an essential tool for investigations in a variety of fields, such as X-ray computed tomography, flexible displays, chemical sensors a...

    Han Zhang, Jie Tang, **shi Yuan, Yasushi Yamauchi, Taku T. Suzuki… in Nature Nanotechnology (2016)

  4. No Access

    Article

    Synthesis and characterization of single crystalline GdB44Si2 nanostructures

    GdB44Si2 is an excellent thermoelectric material, and nanostructured GdB44Si2 makes it possible to potentially improve its properties further. GdB44Si2 nanowires and nanobelts have been fabricated by chemical vap...

    **shi Yuan, Han Zhang, Jie Tang, Norio Shinya, Yuexian Lin… in Journal of Materials Science (2013)

  5. No Access

    Article

    Nano-Flower MnO2 Coated Graphene Composite Electrodes for Energy Storage Devices

    Graphene, two-dimensional layers of sp2-bonded carbon, has many unique properties. In this paper, graphene is decorated with flower-like MnO2 nanostructures for the application in energy storage devices. The as-p...

    Qian Cheng, Jie Tang, Jun Ma, Han Zhang, Norio Shinya… in MRS Online Proceedings Library (2011)

  6. No Access

    Article

    Electrical Resistance of Single-Wall Carbon Nanotubes with Determined Chiral Indices

    The properties of a carbon nanotube (CNT), in particular a single-wall carbon nanotube (SWNT), are highly sensitive to the atomic structure of the nanotube described by its chirality (chiral indices). We have ...

    Letian Lin, Lu-Chang Qin, Sean Washburn, Scott Paulson in MRS Online Proceedings Library (2010)

  7. No Access

    Article

    LaB6 Nanowires and Their Field Emission Properties

    For field-induced electron emission, the two factors that enable a high emission current density at low applied voltages are (a) low work function of the emitter and (b) sharpness of the emitter tip. We have d...

    Han Zhang, Jie Tang, Qi Zhang, Gongpu Zhao, Guang Yang… in MRS Online Proceedings Library (2006)

  8. No Access

    Article

    Twisting of Single-Walled Carbon Nanotube Bundles

    Bundles of single-walled carbon nanotubes produced by laser ablation are often seen twisted in morphology, forming nanoropes which would better suit the function for improvement of structural stability in mech...

    Lu-Chang Qin, Sumio Iijima in MRS Online Proceedings Library (1999)

  9. No Access

    Article

    Morphology and Electron Emission Properties of Nanocrystalline CVD Diamond Thin Films

    Nanocrystalline diamond thin films have been produced by microwave plasma-enhanced chemical vapor deposition (MPECVD) using C60/Ar/H2 or CH4/Ar/H2 plasmas. Films grown with H2 concentration ≤ 20% are nanocrystall...

    Alan R. Krauss, Dieter M. Gruen, Daniel Zhou… in MRS Online Proceedings Library (1997)