ZnO Nanostructures and Field Emission Properties on Cu Substrate Achieved by Electrodeposition Method

In the present work, ZnO nanostructures with tunable size were successfully synthesized on non-seeded Cu substrates by a simple electrodeposition method. The effects of growth conditions on the morphology of the products were studied in detail by scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The as-prepared products exhibited flake-like morphology when the concentration of ZnCl2 was higher enough, while the products showed flower-like morphology when the concentration was lower enough. Field emission investigation indicated that the nanoflowers exhibited good emission properties. The ZnO nanoflowers show potential application as field emitters.

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Nanomeasurements in Transmission Electron Microscopy

Microscopy and Microanalysis ◽

10.1007/s1000599100023 ◽

2000 ◽

Vol 6 (3) ◽

pp. 224-230

Author(s):

Z.L. Wang ◽

P. Poncharal ◽

W.A. de Heer

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Carbon Nanotube ◽

Field Emission ◽

Structural Damage ◽

Measurement Techniques ◽

Emission Properties ◽

Field Emission Properties ◽

Bending Modulus ◽

Transmission Electron

Abstract Nanomaterials have attracted a great deal of research interest recently. The small size of nanostructures constrains the applications of well-established testing and measurement techniques, thus new methods and approaches must be developed for quantitative measurement of the properties of individual nanostructures. This article reports our progress in using in situ transmission electron microscopy to measure the electrical, mechanical, and field-emission properties of individual carbon nanotubes whose microstructure is well-characterized. The bending modulus of a single carbon nanotube has been measured by an electric field-induced resonance effect. A nanobalance technique is demonstrated that can be applied to measure the mass of a tiny particle as light as 22 fg (1 fg = 10−15 g), the smallest balance in the world. Quantum conductance was observed in defect-free nanotubes, which led to the transport of a superhigh current density at room temperature without heat dissipation. Finally, the field-emission properties of a single carbon nanotube are observed, and the field-induced structural damage is reported.

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SYNTHESIS AND FIELD EMISSION PROPERTIES OF SnS2 AND In-DOPED SnS2 WITH HIERARCHICAL STRUCTURE

NANO ◽

10.1142/s1793292011002810 ◽

2011 ◽

Vol 06 (05) ◽

pp. 489-496 ◽

Cited By ~ 2

Author(s):

H. X. ZHONG ◽

C. X. WANG

Keyword(s):

Electron Microscopy ◽

Field Emission ◽

Photoelectron Spectroscopy ◽

Sulfur Source ◽

X Ray Diffraction ◽

Hydrothermal Route ◽

X Ray ◽

Emission Properties ◽

Field Emission Properties ◽

Transmission Electron

A simple hydrothermal route was employed to prepare flower-like SnS2 and In -doped SnS2 by using biomolecular L-cysteine as sulfur source. The synthetic samples were characterized by X-ray diffraction, scanning electron microscopy, high resolution transmission electron microscopy, X-ray photoelectron spectroscopy and Raman spectroscopy in detail. Furthermore, the field emission from both the materials was investigated, it was found that both of them have excellent field emission properties, and the doped In has enhanced the field emission properties.

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Field-emission properties of individual ZnO nanowires studiedin situby transmission electron microscopy

Journal of Physics Condensed Matter ◽

10.1088/0953-8984/19/17/176001 ◽

2007 ◽

Vol 19 (17) ◽

pp. 176001 ◽

Cited By ~ 8

Author(s):

Yunhua Huang ◽

Xuedong Bai ◽

Yue Zhang ◽

Junjie Qi ◽

Yousong Gu ◽

...

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Field Emission ◽

Zno Nanowires ◽

Emission Properties ◽

Field Emission Properties ◽

Transmission Electron

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Nanomeasurements in Transmission Electron Microscopy

Microscopy and Microanalysis ◽

10.1017/s1431927600000374 ◽

2000 ◽

Vol 6 (3) ◽

pp. 224-230 ◽

Cited By ~ 37

Author(s):

Z.L. Wang ◽

P. Poncharal ◽

W.A. de Heer

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Carbon Nanotube ◽

Field Emission ◽

Structural Damage ◽

Measurement Techniques ◽

Emission Properties ◽

Field Emission Properties ◽

Bending Modulus ◽

Transmission Electron

AbstractNanomaterials have attracted a great deal of research interest recently. The small size of nanostructures constrains the applications of well-established testing and measurement techniques, thus new methods and approaches must be developed for quantitative measurement of the properties of individual nanostructures. This article reports our progress in using in situ transmission electron microscopy to measure the electrical, mechanical, and field-emission properties of individual carbon nanotubes whose microstructure is well-characterized. The bending modulus of a single carbon nanotube has been measured by an electric field-induced resonance effect. A nanobalance technique is demonstrated that can be applied to measure the mass of a tiny particle as light as 22 fg (1 fg = 10−15 g), the smallest balance in the world. Quantum conductance was observed in defect-free nanotubes, which led to the transport of a superhigh current density at room temperature without heat dissipation. Finally, the field-emission properties of a single carbon nanotube are observed, and the field-induced structural damage is reported.

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Enhanced Field Emission Properties of Carbon Nanotube Based Field Emitters by Dynamic Oxidation

Current Nanoscience ◽

10.2174/15734137113099990060 ◽

2013 ◽

Vol 9 (5) ◽

pp. 619-623 ◽

Cited By ~ 5

Author(s):

Shama Parveen ◽

Samina Husain ◽

Avshish Kumar ◽

Javid Ali ◽

Mubashshir Husain ◽

...

Keyword(s):

Carbon Nanotube ◽

Field Emission ◽

Emission Properties ◽

Field Emission Properties ◽

Field Emitters ◽

Dynamic Oxidation

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Surface modification via silver nanoparticles attachment: An ex-situ approach for enhancing the electron field emission properties of CNT field emitters

Materials Today Proceedings ◽

10.1016/j.matpr.2021.03.449 ◽

2021 ◽

Author(s):

Mohammad Moeen Hasan Raza ◽

Mohd Sadiq ◽

Sunny Khan ◽

Mohd Sarvar ◽

Shama Parveen ◽

...

Keyword(s):

Silver Nanoparticles ◽

Surface Modification ◽

Field Emission ◽

Ex Situ ◽

Electron Field Emission ◽

Emission Properties ◽

Field Emission Properties ◽

Field Emitters ◽

Electron Field ◽

Electron Field Emission Properties

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Different ZnO Nanostructures Fabricated by a Seed-Layer Assisted Electrochemical Route and Their Photoluminescence and Field Emission Properties

The Journal of Physical Chemistry C ◽

10.1021/jp066661l ◽

2007 ◽

Vol 111 (6) ◽

pp. 2470-2476 ◽

Cited By ~ 116

Author(s):

Bingqiang Cao ◽

Xuemei Teng ◽

Sung Hwan Heo ◽

Yue Li ◽

Sung Oh Cho ◽

...

Keyword(s):

Field Emission ◽

Seed Layer ◽

Zno Nanostructures ◽

Emission Properties ◽

Field Emission Properties

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Fabrication of Tetrapod-liked Al-doped ZnO Nanostructures and Their Photoluminescence and Field Emission Properties

Chinese Journal of Luminescence ◽

10.3788/fgxb20133411.1424 ◽

2013 ◽

Vol 34 (11) ◽

pp. 1424-1429

Author(s):

周雄图 ZHOU Xiong-tu ◽

曾祥耀 ZENG Xiang-yao ◽

张永爱 ZHANG Yong-ai ◽

郭太良 GUO Tai-liang

Keyword(s):

Field Emission ◽

Zno Nanostructures ◽

Emission Properties ◽

Field Emission Properties ◽

Doped Zno

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Study of Field Emission Behavior of Carbon Nanotubes with Different Sources

MRS Proceedings ◽

10.1557/proc-728-s8.43 ◽

2002 ◽

Vol 728 ◽

Author(s):

Mark Ching-Cheng Lin ◽

M.S. Lai ◽

H. J. Lai ◽

M. H. Yang ◽

B.Y. Wei ◽

...

Keyword(s):

Electron Microscopy ◽

Carbon Nanotubes ◽

Carbon Nanotube ◽

Field Emission ◽

Arc Discharge ◽

Metal Catalyst ◽

Microstructural Investigation ◽

Emission Properties ◽

Field Emission Properties ◽

Different Sources

AbstractThe field emission properties of carbon nanotubes (CNTs) from various sources are investigated for the application of field emission displays. Comparisons are made between graphite with Ni metal as catalyst and polycyclic aromatic hydrocarbon as precursor by the arc discharge method. Cathode deposits are examined using scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM) to determine microstructure. Carbon structure is studied using Raman spectroscopy. Electron field emission characteristics are measured with the diode method at 10-6 torr pressure. In this study, SEM micrographs of cathode deposits show dense random fiber-like carbon nanotubes. The HRTEM images clearly exhibit characteristic features of multiwalled carbon nanotubes. Microstructural investigation provides evidence that both the metal catalyst and the precursor can be used to synthesize carbon nanotubes. The Raman spectrum shows a stronger peak at about 1580 cm-1 indicating formation of a well-graphitized carbon nanotube. The degree of carbon nanotube graphitization is high and is in good agreement with the HRTEM result. From field emission measurements, the lowest onset field is about 1.0 V/μm and can be attributed to highly sharp tips and the high density of carbon nanotubes. Based on microstructure characterization and field emission measurements, the influence on field emission properties including turn on voltage and threshold voltage of carbon nanotubes synthesized from different sources is discussed.

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