Carbon nanotubes for electron emitting devices

Kajiwaraa, Kazuo; Saitob, Yahachi

doi:10.1016/b978-044451855-2/50019-x

Cited by 4 publications

(4 citation statements)

References 55 publications

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“…Figure 5 shows the long-term field emission stability test of the cathode. When the current density keeps 3.5 mA/cm 2 , the cathode is continuously emitted for 140 minutes without significant fluctuations, which indicates that the imprinted CNTs cathode has good field emission stability and can operate stably for a long time [16,[18][19][20] .…”

Section: The Imprinted Cnts Field Emission Cathodementioning

confidence: 95%

“…The imprinted CNTs field emission cathode is fabricated as follows [16][17][18][19][20] . Firstly, single-walled CNTs are mixed with absolute alcohol and sonicated for 2 hours.…”

Section: The Imprinted Cnts Field Emission Cathodementioning

confidence: 99%

“…At last, the imprinted CNTs cathode is obtained and the process is shown in Figure 2. Figure 4 shows the field emission results of the imprinted CNTs cathode, where the turn-on field and the threshold field are low at 0.62 V/μm and 1.04 V/μm respectively [19][20][21] . The field enhancement factor β reaches 15800.…”

Section: The Imprinted Cnts Field Emission Cathodementioning

confidence: 99%

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Imprinted CNTs field emission cathode for electron brushing

Wang,

Lin,

Yan

et al. 2024

J. Phys.: Conf. Ser.

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Microchannel plates (MCPs) are the key components for low-level light night vision systems. Electron brushing is a crucial processing for MCPs manufacturing. In this paper, an imprinted carbon nanotubes (CNTs) field emission cathode is fabricated and tested. And the electron brushing experiment based on this cathode is carried out. The result shows that the imprinted CNTs cathode has some advantages and can be used in electron brushing. This research lays the foundation for massive, low cost and highly efficient electron brushing applications in the future.

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Section: The Imprinted Cnts Field Emission Cathodementioning

confidence: 95%

“…The imprinted CNTs field emission cathode is fabricated as follows [16][17][18][19][20] . Firstly, single-walled CNTs are mixed with absolute alcohol and sonicated for 2 hours.…”

Section: The Imprinted Cnts Field Emission Cathodementioning

confidence: 99%

Section: The Imprinted Cnts Field Emission Cathodementioning

confidence: 99%

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Imprinted CNTs field emission cathode for electron brushing

Wang,

Lin,

Yan

et al. 2024

J. Phys.: Conf. Ser.

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“…In recent years, chirality-selective synthesis of carbon nanotubes (CNTs) has been developed for industrial applications such as field emission cathodes for flat panel displays [1]. The electronic property of a CNT can be either metallic or semiconducting, dependent on its diameter and chirality [2].…”

Section: Introductionmentioning

confidence: 99%

Chirality-selective synthesis of carbon nanotubes by catalytic-chemical vapor deposition using quasicrystal alloys as catalysts

Kajiwara¹,

Suzuki²,

Sato³

et al. 2009

Zeitschrift Für Kristallographie - Crystalline Materials

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Abstract. We study ultrathin quasicrystalline (QC) films as catalysts for the synthesis of carbon nanotubes (CNTs). To optimize the conditions for the synthesis of CNTs with single chirality, it is important to understand the effects of the catalyst on the chirality-selectivity. Among QC alloys found so far, an icosahedral Al--Cu--Fe alloy system with fivefold symmetry was tested for a catalyst in the synthesis of CNTs by alcohol catalytic-chemical vapor deposition (CCVD). Cross-sectional scanning electron microscopic images of the samples revealed that verticallyaligned CNTs were synthesized reproducibly. It implies that QC films have a significant catalytic activity for the synthesis of CNTs. Moreover, preliminary results of chirality-selectivity are obtained by means of resonance Raman scattering. It is suggested that Al--Cu--Fe ultrathin films are useful for the preferential synthesis of armchairtype CNTs, that is, QC nanoclusters play an important role as catalyst in alcohol CCVD.

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