Enhanced field emission properties from titanium-coated carbon nanotubes

Uh, Hyung Soo; Park, Sangsik; Kim, Byungwhan

doi:10.1016/j.diamond.2009.11.021

Cited by 28 publications

(17 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ti coated tubes, Table 2). 41 Finally, it is important to understand emission sites at C@BN and study here suggests two possible channels, including N atoms in occupied and B atoms in unoccupied states. First, both are highly polarized in the presence of E, and second, they lie in the vicinity of E F .…”

Section: Resultsmentioning

confidence: 99%

Hexagonal Boron Nitride Coated Carbon Nanotubes: Interlayer Polarization Improved Field Emission

Chang

Tsai

Lin

et al. 2015

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Coating of h-BN onto carbon nanotubes induces polarization at interfaces, and charges become localized at N and C atoms. Field emission of coated tubes is found to be highly stable, and current density fluctuates within 4%. Study further reveals that the electric field established between coatings and tubes facilitates charge transfer across interfaces and electrons are emitted through occupied and unoccupied bands of N and B atoms.

show abstract

Section: Resultsmentioning

confidence: 99%

Hexagonal Boron Nitride Coated Carbon Nanotubes: Interlayer Polarization Improved Field Emission

Chang

Tsai

Lin

et al. 2015

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…Among the advantages of plasma processes, it has been quoted that they are relatively low cost procedures, environmentally friendly (i.e., solventless method) and scalable at wafer scale for direct deposition onto electronic and photonic devices while providing a precise control over the composition of the deposited materials. Due to these advantages, during the last years plasma technology has being systematically used for the fabrication of 1D nanofibres and other heterostructures [25,[29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47]. As already mentioned, most works in this field deal with the fabrication of heterostructures formed by CNTs and carbon nanofibers where the metal particle acts as a catalyst of the growth process.…”

Section: Introductionmentioning

confidence: 99%

“…As already mentioned, most works in this field deal with the fabrication of heterostructures formed by CNTs and carbon nanofibers where the metal particle acts as a catalyst of the growth process. Just as examples of this type of heterostructures let us mention the case of Co nanoparticles encapsulated in CNTs that were synthesised by a one-step PECVD method at high pressures and substrate temperatures [32], that of Ti-coated CNTs fabricated by inductively-coupled plasma enhanced chemical vapour deposition (ICP-CVD) and Ti sputtering for field emission applications [33][34][35] or Cu-C hybrid nanosystems produced by means of plasma deposition of carbon on copper metal seeds [28]. The results of Penza et al about the decoration of CNTs with metal (Ag, Au, Pt and Ru) nanoparticles are also very promising in the field of nanosensor applications [36].…”

Section: Introductionmentioning

confidence: 99%

Supported plasma-made 1D heterostructures: perspectives and applications

Borrás¹,

Macías-Montero²,

Romero‐Gómez³

et al. 2011

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

“…The size of the coating particle is not homogenous. When the surface is fully covered by filamentous coke, the coating particle is first deposited in the interspaces of the interwoven filaments and on the surface of filamentous coke [15,16]. And with the proceeding of coating deposition, the coke layer is gradually covered by the coating.…”

Section: Resultsmentioning

confidence: 99%

Influence of coke thickness on the on-line SiO2/S coating preparation and its thermal shock property

Wang¹,

Zhou²,

Xu³

2015

Proceedings of the 2015 International Conference on Advanced Engineering Materials and Technology

View full text Add to dashboard Cite

Abstract. SiO 2 /S coating was prepared on the surface of HP40 specimen with different thicknesses of coke. The influence of coke on the coating deposition and thermal shock property was studied. Scanning electron microscopy, X-ray diffractometry and X-ray energy dispersive spectroscopy were used for microstructure and microchemical analysis. The morphologies of cokes and SiO 2 /S coatings were investigated. The results show that the oxide layer of HP40 specimen formed at 850˚C for 2 hour is porous and mainly composed of (Cr, Fe)-spinel and a small amount of Fe 2 O 3 . The coking rate initially is high, then decreases with increasing cracking time, and finally reaches a stable value after 20 minutes. The diameter of coke changes from 1μm to 0.2μm, and then is about 0.5μm. The thickness of the coke layer changes from 0.56μm to 2.58μm. The thickness of coke layer has an important influence on the morphology and thermal shock property of the on-line SiO 2 /S coating. With increasing the thickness of the coke layer, the coating becomes rough and incompact. When the thickness of the coke layer is 0.56μm, the coating can bear 13 thermal shock tests. And the coating is out of service when the coke layer is 2.58μm. It is suggested that a thorough decoking should be carried out to improve the adhesion between the on-line coating and the inner surface of the cracking tube.

show abstract

Enhanced field emission properties from titanium-coated carbon nanotubes

Cited by 28 publications

References 13 publications

Hexagonal Boron Nitride Coated Carbon Nanotubes: Interlayer Polarization Improved Field Emission

Hexagonal Boron Nitride Coated Carbon Nanotubes: Interlayer Polarization Improved Field Emission

Supported plasma-made 1D heterostructures: perspectives and applications

Influence of coke thickness on the on-line SiO2/S coating preparation and its thermal shock property

Contact Info

Product

Resources

About