Characteristics of Field Emitters on the Basis of Pd-Adsorbed ZnO Nanostructures by Photochemical Method

2021 ◽  
Vol 4 (3) ◽  
pp. 2515-2521
Author(s):  
Sheng-Joue Young ◽  
Yen-Lin Chu
Keyword(s):  
Zno Nanostructures ◽  
Field Emitters ◽  
Photochemical Method

Optimized performances of tetrapod-like ZnO nanostructures for a triode structure field emission planar light source

Nanoscale ◽  
2014 ◽  
Vol 6 (22) ◽  
pp. 13544-13549 ◽  
Author(s):  
Yiren Chen ◽  
Liqin Hu ◽  
Hang Song ◽  
Hong Jiang ◽  
Dabing Li ◽  
...  
Keyword(s):  
Light Source ◽  
Field Emission ◽  
High Efficiency ◽  
Zno Nanostructures ◽  
Field Emitters

A high-efficiency triode structure field emission planar light source was fabricated using optimized tetrapod-like ZnO nanostructures as field emitters.

Review on one-dimensional ZnO nanostructures for electron field emitters

2013 ◽  
Vol 6 (4) ◽  
pp. 386-412 ◽  
Author(s):  
Meirong Sui ◽  
Ping Gong ◽  
Xiuquan Gu
Keyword(s):  
Zno Nanostructures ◽  
One Dimensional ◽  
Field Emitters ◽  
Electron Field

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

2011 ◽  
Vol 347-353 ◽  
pp. 3388-3391
Author(s):  
Jiang Feng Gong ◽  
Chang Yong Lan ◽  
Bo Zhang ◽  
Kai Xiao Zhang ◽  
Wei Hua Zhu
Keyword(s):  
Electron Microscopy ◽  
Field Emission ◽  
Growth Conditions ◽  
Zno Nanostructures ◽  
Emission Properties ◽  
Electrodeposition Method ◽  
Field Emission Properties ◽  
Field Emitters ◽  
Transmission Electron ◽  
Cu Substrates

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.

Vertical arrays of SiNWs–ZnO nanostructures as high performance electron field emitters

2012 ◽  
Vol 22 (43) ◽  
pp. 22922 ◽  
Author(s):  
Rami Reddy Devarapalli ◽  
Deodatta R. Shinde ◽  
Fatiha Barka-Bouaifel ◽  
Sandeep G. Yenchalwar ◽  
Rabah Boukherroub ◽  
...  
Keyword(s):  
High Performance ◽  
Zno Nanostructures ◽  
Vertical Arrays ◽  
Field Emitters ◽  
Electron Field

Characteristics and Application of Temperature-Field Emitters

1975 ◽  
Vol 33 ◽  
pp. 144-145
Author(s):  
N. Tamura ◽  
T. Goto ◽  
Y. Harada
Keyword(s):  
Temperature Field ◽  
Electron Microscope ◽  
Field Emission ◽  
Resolving Power ◽  
High Brightness ◽  
Field Emitters ◽  
Emission Electron ◽  
Sufficient Stability ◽  
Scanning Electron ◽  
Illuminating System

On account of its high brightness, the field emission electron source has the advantage that it provides the conventional electron microscope with highly coherent illuminating system and that it directly improves the, resolving power of the scanning electron microscope. The present authors have reported some results obtained with a 100 kV field emission electron microscope.It has been proven, furthermore, that the tungsten emitter as a temperature field emission source can be utilized with a sufficient stability under a modest vacuum of 10-8 ~ 10-9 Torr. The present paper is concerned with an extension of our study on the characteristics of the temperature field emitters.

Design of a Field-Emission Gun for the Phillips CM20/STEM microscope

1990 ◽  
Vol 48 (2) ◽  
pp. 100-101
Author(s):  
P.M. Mul ◽  
B.J.M. Bormans ◽  
L. Schaap
Keyword(s):  
High Resolution ◽  
Field Emission ◽  
Analytical Electron Microscopy ◽  
Emission Region ◽  
Attractive Alternative ◽  
Electron Holography ◽  
Field Emitter ◽  
Field Emitters ◽  
Resolution Electron ◽  
High Resolution Tem

The first Field Emission Guns (FEG) on TEM/STEM instruments were introduced by Philips in 1977. In the past decade these EM400-series microscopes have been very successful, especially in analytical electron microscopy, where the high currents in small probes are particularly suitable. In High Resolution Electron Holography, the high coherence of the FEG has made it possible to approach atomic resolution.Most of these TEM/STEM systems are based on a cold field emitter (CFE). There are, however, a number of disadvantages to CFE’s, because of their very small emission region: the maximum current is limited (a strong disadvantage for high-resolution TEM imaging) and the emission is unstable, requiring special measures to reduce the strong FEG-induced noise. Thermal field emitters (TFE), i.e. a zirconiated field emitter source operating in the thermal or Schottky mode, have been shown to be a viable and attractive alternative to CFE’s. TFE’s have larger emission regions, providing much higher maximum currents, better stability, and reduced sensitivity to vacuum conditions as well as mechanical and electrical interferences.

MICROPROCESSOR CONTROLLED REMOLDING OF FIELD EMITTERS

1986 ◽  
Vol 47 (C7) ◽  
pp. C7-453-C7-458
Author(s):  
F. HASSELBACH ◽  
M. NICKLAUS ◽  
K. ZEUNER
Keyword(s):  
Field Emitters
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