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Lanthanum hexaboride (LaB6) nanowires have attracted much attention due to their outstanding physical properties. In order to enhance the developments of LaB6 nanowires, it is essential to study the field emission (FE) properties of LaB6 nanowires in different environments. Here, we investigate the effect of oxygen (O2) on the FE behaviors of LaB6 nanowires. And it is found that the oxygen content...
SmB6 is believed as an ideal candidate for FE applications because of their unique properties. Up to date, the effect of image potential on the field emission (FE) behaviors of one-dimensional nanostructures is still unclear in experiments, and thus it becomes a challenging issue for the researchers. In this paper, the effect of image potential on FE properties of SmB6 nanowires are detailed studied...
The B/LaB6 hierarchical heterojunction nanostructures have been successfully fabricated on Si substrate by CVD technique. The branch-like morphology may be beneficial to improving their field emission (FE) properties by increasing the aspect ratio or growth density of the emitters. The results show that the threshold field of the B/LaB6 branch-like nanoheterojunctions is 21.6 V/μm (@1 mA/cm2) and...
As a typcial kondo insulator, SmB6 has attracted most of attention in recent years. But their corresponding nanostructures are hard to fabricate due to the growth technique. In this paper, uniform SmB6 nanocone arrays have been successfully fabricated by a simple chemical vapor deposition (CVD) method. The field emission (FE) behaviors of SmB6 nanocone arrays were investigated to reveal their surface...
Boron nanowire micro-patterns are prepared by CVD method. Ni film is chosen to be the catalyst for fabrication of boron nanowires. Patterned boron nanowires are found to have relatively lower turn-on field and good emission uniformity, which should have a promising future in FED area.
W18O49 nanowires have demonstrated good field emission properties, such as low turn-on filed and high current density. However, their emission uniformity still needs improvement, which is an important issue for large area application such as field emission display. In present study, we reported an in-situ plasma treatment method using Ar and H2 to improve the emission uniformity of tungsten oxide...
AlN nanowires have low electron affinity, which has been considered as one of the ideal cathode materials in future. Although many methods have been developed to prepare AlN nanowires with different morphologies, little effort is found to focus on the patterned growth technique, which has limited their applicaitions. Here we provide a ceramic template method to fabricate patterned AlN nanowire arrays,...
Tungsten oxide nanowire is a very promising cathode nanomaterial, which has exhibited good emission properties. In most preparation methods, the growth temperature is higher than 800 °C, which is too high for application in field emission display which used glass as the substrate. Moreover, the selected-area growth of the tungsten oxide is also a challenge. Here we provide a simple method to fabricate...
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