Enhancement of field electron emission in topological insulator Bi2Se3 by Ni doping

2018 ◽  
Vol 20 (27) ◽  
pp. 18429-18435 ◽  
Author(s):  
Kushal Mazumder ◽  
Alfa Sharma ◽  
Yogendra Kumar ◽  
Prashant Bankar ◽  
Mahendra A. More ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Field Emission ◽  
Topological Insulator ◽  
Electron Emission ◽  
Field Electron Emission ◽  
Bismuth Selenide ◽  
Ni Doping ◽  
Emission Properties ◽  
Field Emission Properties ◽  
Field Electron

Nanostructures of bismuth selenide (Bi2Se3), a 3D topological insulator material, and nickel (Ni) doped Bi2Se3 samples were prepared by a hydrothermal method to explore the field emission properties.

scholarly journals Enrichment in the field emission properties of NiCo2O4 nanostructures by UV/Ozone treatment

2021 ◽  
Author(s):  
Mansi Pathak ◽  
Pallavi Mutadak ◽  
Pratap Mane ◽  
Mahendra A More ◽  
Brahmananda Chakraborty ◽  
...  
Keyword(s):  
Field Emission ◽  
Electron Emission ◽  
Field Electron Emission ◽  
Ozone Treatment ◽  
Enhancement Effect ◽  
Emission Properties ◽  
Prepared Sample ◽  
Field Emission Properties ◽  
Uv Ozone ◽  
Spinel Nico2o4

Herein, UV/O3 treatment was imposed on the hydrothermally synthesized spinel NiCo2O4 urchin like structure to study its enhancement effect in the field electron emission properties. The as prepared sample was...

scholarly journals Enhanced Field Electron Emission from Photocurrent Treated Nanostructured Indium Oxide Films

2018 ◽  
Vol 228 ◽  
pp. 04003
Author(s):  
Zhenglin Li ◽  
Fuyuan Si ◽  
Miaomiao Wang ◽  
Weigang He ◽  
Yuwei Zhang
Keyword(s):  
Field Emission ◽  
Indium Oxide ◽  
Electron Emission ◽  
Oxide Films ◽  
Field Electron Emission ◽  
Chemical Vapor Deposition Method ◽  
Treatment Technique ◽  
Field Electron ◽  
Ito Glass ◽  
Indium Oxide Films

Field electron emission currents from nanostructured films always have unsatisfied stability. This paper introduces a photocurrent treatment technique to enhance the filed emission properties, and gives a kind of nanostructured indium oxide film suitable for the technique. The products were prepared on patterned ITO glass substrate by using chemical vapor deposition method. With the increase of reaction time, the morphologies of the films changed from cocoonlike particles to hybrid thin films, and finally flowerlike nanostructures were formed. Photocurrent and field electron emission characteristics of the products have been studied. After photocurrent treatment, the flowerlike indium oxide films show stable field emission current (fluctuation is less than 5%), low field emission threshold (at 7.5 V/m, the current density is 1 mA/cm2) and high enhancement factor of electrical field of 778. The field emission test results validated that the photocurrent treated flowerlike indium oxide films may act as electron emitters and applied in display applications.

Enhanced Field Electron Emission Properties of Hybrid Carbon Nanotubes Synthesized by RF-PECVD

2009 ◽  
pp. NA-NA ◽  
Author(s):  
Guangmin Yang ◽  
Qiang Xu ◽  
Xin Wang ◽  
Hongwei Tian ◽  
Weitao Zheng ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electron Emission ◽  
Field Electron Emission ◽  
Emission Properties ◽  
Field Electron ◽  
Hybrid Carbon

scholarly journals Enhanced field electron emission properties of hierarchically structured MWCNT-based cold cathodes

2014 ◽  
Vol 9 (1) ◽  
pp. 55 ◽  
Author(s):  
Loïck-Alexandre Gautier ◽  
Vincent Le Borgne ◽  
Samir Al Moussalami ◽  
My El Khakani
Keyword(s):  
Electron Emission ◽  
Field Electron Emission ◽  
Emission Properties ◽  
Cold Cathodes ◽  
Field Electron

Cold field electron emission of large-area arrays of SiC nanowires: photo-enhancement and saturation effects

2016 ◽  
Vol 4 (35) ◽  
pp. 8226-8234 ◽  
Author(s):  
Stefania Carapezzi ◽  
Antonio Castaldini ◽  
Filippo Fabbri ◽  
Francesca Rossi ◽  
Marco Negri ◽  
...  
Keyword(s):  
Field Emission ◽  
Electron Emission ◽  
Field Electron Emission ◽  
Large Area ◽  
Sic Nanowires ◽  
Field Electron ◽  
Saturation Region ◽  
Saturation Effects

Photo-enhanced field emission from SiC nanowires showed the presence of a saturation region, which is of interest for nanotechnological applications.

Growth of Large-Scale Praseodymium Hexaborides (PrB6) Nanowires and Enhanced Field-Emission Performance

2020 ◽  
Vol 15 (2) ◽  
pp. 276-283 ◽  
Author(s):  
Junqi Xu ◽  
Yanrui Wang ◽  
Wenjie Wang ◽  
Zijun Xu ◽  
Yonglei Jia ◽  
...  
Keyword(s):  
Field Emission ◽  
Electron Emission ◽  
Large Scale ◽  
Field Enhancement ◽  
Chemical Vapor ◽  
Field Electron Emission ◽  
Threshold Field ◽  
Analytical Instruments ◽  
Field Electron ◽  
Pressure Chemical

Large-scale PrB6 nanowires were fabricated by an effective, catalyst-free, and a simple low-pressure chemical vapor deposition (LPCVD) process. These nanowires, characterized in detail by various analytical instruments, demonstrated the large aspect ratio and high single-crystalline grown along the [001] crystal direction perpendicular to the (001) crystal plane. The field electron emission equipment tests manifest that the asgrown PrB6 products have a low turn-on field (Eto, 2.32 V/μm), a threshold field (Ethr, 4.28 V/μm), a high field enhancement factor (β, 2336), as well as a stable current-density (J) of field-emission. The relationships of the field electron emission parameters, such as J, Eto, and β versus cathode gap (d), have been established when d is increased from 500 μm to 800 μm. The outstanding properties suggest that the PrB6 products may be promising emitters in the cold-field-emission cathode application.

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