The femtosecond laser micro-processing of the field-emission tip arrays in single crystal CeB6

Publikationen: Beitrag in FachzeitschriftArtikelForschung(peer-reviewed)

Standard

The femtosecond laser micro-processing of the field-emission tip arrays in single crystal CeB6. / Zhou, Ning; Zhang, Wei; Zhang, Xin et al.
in: Vacuum, Jahrgang 184 , 109929, 02.2021.

Publikationen: Beitrag in FachzeitschriftArtikelForschung(peer-reviewed)

Harvard

APA

Zhou, N., Zhang, W., Zhang, X., Liu, H., Liu, Q., Xiao, Y., Liu, Y., Jin, S., & Liao, N. (2021). The femtosecond laser micro-processing of the field-emission tip arrays in single crystal CeB6. Vacuum, 184 , Artikel 109929. https://doi.org/10.1016/j.vacuum.2020.109929

Vancouver

Zhou N, Zhang W, Zhang X, Liu H, Liu Q, Xiao Y et al. The femtosecond laser micro-processing of the field-emission tip arrays in single crystal CeB6. Vacuum. 2021 Feb;184 :109929. doi: 10.1016/j.vacuum.2020.109929

Author

Zhou, Ning ; Zhang, Wei ; Zhang, Xin et al. / The femtosecond laser micro-processing of the field-emission tip arrays in single crystal CeB6. in: Vacuum. 2021 ; Jahrgang 184 .

Bibtex - Download

@article{2c2576715d2e4219bf088beef2e372c5,
title = "The femtosecond laser micro-processing of the field-emission tip arrays in single crystal CeB6",
abstract = "The field-emission tip arrays (FEAs) in single crystal cerium-hexaboride (CeB 6) were micro-processed by femtosecond laser. The results show that the femtosecond laser has no damage to the surface structure and phase of the CeB 6 FEAs, and the FEA with the curvature radius of the optimal tips of about 0.6 μm and the height of about 5 μm have uniform morphology and the best field-emission performance. The single crystal CeB 6 FEAs had good emission stability under the following conditions: the starting electric field of 2.8 V/μm and an emission current density of 0.98 A/cm 2 at an electric field of 7.7 V/μm. The calculations of material removal threshold and finite element simulation of the temperature field substantiate that laser peak energy density F 0=0.95 J/cm 2 is in good agreement with the theoretical calculation result (0.51 J/cm 2≤F 0 ≤ 2.12 J/cm 2). Finally, the best process parameter range of this experiment is obtained. These results further indicating that the femtosecond laser micro-processing is an effective method to develop the vacuum field-emission application of single crystal CeB 6. ",
keywords = "Cerium-hexaboride (CeB ), Femtosecond laser, Field-emission tip arrays (FEAs), Finite element simulation, Removal threshold",
author = "Ning Zhou and Wei Zhang and Xin Zhang and Hongliang Liu and Qingmei Liu and Yixin Xiao and Yanqin Liu and Shengli Jin and Ning Liao",
note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",
year = "2021",
month = feb,
doi = "10.1016/j.vacuum.2020.109929",
language = "English",
volume = "184 ",
journal = "Vacuum",
issn = "0042-207X",
publisher = "Elsevier",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - The femtosecond laser micro-processing of the field-emission tip arrays in single crystal CeB6

AU - Zhou, Ning

AU - Zhang, Wei

AU - Zhang, Xin

AU - Liu, Hongliang

AU - Liu, Qingmei

AU - Xiao, Yixin

AU - Liu, Yanqin

AU - Jin, Shengli

AU - Liao, Ning

N1 - Publisher Copyright: © 2020 Elsevier Ltd

PY - 2021/2

Y1 - 2021/2

N2 - The field-emission tip arrays (FEAs) in single crystal cerium-hexaboride (CeB 6) were micro-processed by femtosecond laser. The results show that the femtosecond laser has no damage to the surface structure and phase of the CeB 6 FEAs, and the FEA with the curvature radius of the optimal tips of about 0.6 μm and the height of about 5 μm have uniform morphology and the best field-emission performance. The single crystal CeB 6 FEAs had good emission stability under the following conditions: the starting electric field of 2.8 V/μm and an emission current density of 0.98 A/cm 2 at an electric field of 7.7 V/μm. The calculations of material removal threshold and finite element simulation of the temperature field substantiate that laser peak energy density F 0=0.95 J/cm 2 is in good agreement with the theoretical calculation result (0.51 J/cm 2≤F 0 ≤ 2.12 J/cm 2). Finally, the best process parameter range of this experiment is obtained. These results further indicating that the femtosecond laser micro-processing is an effective method to develop the vacuum field-emission application of single crystal CeB 6.

AB - The field-emission tip arrays (FEAs) in single crystal cerium-hexaboride (CeB 6) were micro-processed by femtosecond laser. The results show that the femtosecond laser has no damage to the surface structure and phase of the CeB 6 FEAs, and the FEA with the curvature radius of the optimal tips of about 0.6 μm and the height of about 5 μm have uniform morphology and the best field-emission performance. The single crystal CeB 6 FEAs had good emission stability under the following conditions: the starting electric field of 2.8 V/μm and an emission current density of 0.98 A/cm 2 at an electric field of 7.7 V/μm. The calculations of material removal threshold and finite element simulation of the temperature field substantiate that laser peak energy density F 0=0.95 J/cm 2 is in good agreement with the theoretical calculation result (0.51 J/cm 2≤F 0 ≤ 2.12 J/cm 2). Finally, the best process parameter range of this experiment is obtained. These results further indicating that the femtosecond laser micro-processing is an effective method to develop the vacuum field-emission application of single crystal CeB 6.

KW - Cerium-hexaboride (CeB )

KW - Femtosecond laser

KW - Field-emission tip arrays (FEAs)

KW - Finite element simulation

KW - Removal threshold

UR - http://www.scopus.com/inward/record.url?scp=85097439014&partnerID=8YFLogxK

U2 - 10.1016/j.vacuum.2020.109929

DO - 10.1016/j.vacuum.2020.109929

M3 - Article

VL - 184

JO - Vacuum

JF - Vacuum

SN - 0042-207X

M1 - 109929

ER -