Nanocone-shaped Carbon Nanotubes Field Emitter Array Fabricated by Laser Ablation

Jiuzhou Zhao; Zhenjun Li; Matthew Thomas Cole; Aiwei Wang; Xiangdong Guo; Xinchuan Liu; Wei Lyu; Hanchao Teng; Yunpeng Qv; Guanjiang Liu; Ke Chen; Shenghan Zhou; Jianfeng Xiao; Yi Li; Chi Li; Qing Dai

doi:10.3390/nano11123244

Nanocone-shaped Carbon Nanotubes Field Emitter Array Fabricated by Laser Ablation

Jiuzhou Zhao
, Zhenjun Li
, Matthew Thomas Cole
, Aiwei Wang
, Xiangdong Guo
, Xinchuan Liu
, Wei Lyu
, Hanchao Teng
, Yunpeng Qv
, Guanjiang Liu
, Ke Chen
, Shenghan Zhou
, Jianfeng Xiao
, Yi Li
, Chi Li
, Qing Dai

Tianjin University
National Center for Nanoscience and Technology
University of the Chinese Academy of Sciences
National Centre for Nanoscience and Technology
GBA Research Innovation Institute for Nanotechnology

Research output: Contribution to journal › Article › peer-review

29 Citations (SciVal)

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Abstract

The nanocone-shaped carbon nanotubes field-emitter array (NCNA) is a near-ideal field-emitter array that combines the advantages of geometry and material. In contrast to previous methods of field-emitter array, laser ablation is a low-cost and clean method that does not require any photolithography or wet chemistry. However, nanocone shapes are hard to achieve through laser ablation due to the micrometer-scale focusing spot. Here, we develop an ultraviolet (UV) laser beam patterning technique that is capable of reliably realizing NCNA with a cone-tip radius of ≈300 nm, utilizing optimized beam focusing and unique carbon nanotube–light interaction properties. The patterned array provided smaller turn-on fields (reduced from 2.6 to 1.6 V/μm) in emitters and supported a higher (increased from 10 to 140 mA/cm2) and more stable emission than their unpatterned counterparts. The present technique may be widely applied in the fabrication of high-performance CNTs field-emitter arrays.

Original language	English
Article number	11123244
Journal	Nanomaterials
Volume	11
Issue number	12
DOIs	https://doi.org/10.3390/nano11123244
Publication status	Published - 29 Nov 2021

Funding

Funding: This work is supported by the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB36000000), the National Natural Science Foundation of China (Grant No. 51972072, 52072084, 51925203), CAS Interdisciplinary Innovation Team (Grant No. JCTD-2018-03), the Key Area Research and Development Program of Guangdong Province (Grant No. 2020B0101020002), the GBA National Institute for Nanotechnology Innovation (Grant No. 2020GN0106), and the National Key R&D Program of China (Grant No. 2016YFA0202000).

Keywords

nanotechnology
field electron emission
carbon nanotubes

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10.3390/nano11123244Licence: CC BY

nanomaterials-1476019.PDFAccepted author manuscript, 1.12 MBLicence: CC BY

Cite this

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title = "Nanocone-shaped Carbon Nanotubes Field Emitter Array Fabricated by Laser Ablation",

abstract = " The nanocone-shaped carbon nanotubes field-emitter array (NCNA) is a near-ideal field-emitter array that combines the advantages of geometry and material. In contrast to previous methods of field-emitter array, laser ablation is a low-cost and clean method that does not require any photolithography or wet chemistry. However, nanocone shapes are hard to achieve through laser ablation due to the micrometer-scale focusing spot. Here, we develop an ultraviolet (UV) laser beam patterning technique that is capable of reliably realizing NCNA with a cone-tip radius of ≈300 nm, utilizing optimized beam focusing and unique carbon nanotube{\textendash}light interaction properties. The patterned array provided smaller turn-on fields (reduced from 2.6 to 1.6 V/μm) in emitters and supported a higher (increased from 10 to 140 mA/cm2) and more stable emission than their unpatterned counterparts. The present technique may be widely applied in the fabrication of high-performance CNTs field-emitter arrays. ",

keywords = "nanotechnology, field electron emission, carbon nanotubes",

author = "Jiuzhou Zhao and Zhenjun Li and Cole, \{Matthew Thomas\} and Aiwei Wang and Xiangdong Guo and Xinchuan Liu and Wei Lyu and Hanchao Teng and Yunpeng Qv and Guanjiang Liu and Ke Chen and Shenghan Zhou and Jianfeng Xiao and Yi Li and Chi Li and Qing Dai",

year = "2021",

month = nov,

day = "29",

doi = "10.3390/nano11123244",

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AU - Zhao, Jiuzhou

AU - Li, Zhenjun

AU - Cole, Matthew Thomas

AU - Wang, Aiwei

AU - Guo, Xiangdong

AU - Liu, Xinchuan

AU - Lyu, Wei

AU - Teng, Hanchao

AU - Qv, Yunpeng

AU - Liu, Guanjiang

AU - Chen, Ke

AU - Zhou, Shenghan

AU - Xiao, Jianfeng

AU - Li, Yi

AU - Li, Chi

AU - Dai, Qing

PY - 2021/11/29

Y1 - 2021/11/29

N2 - The nanocone-shaped carbon nanotubes field-emitter array (NCNA) is a near-ideal field-emitter array that combines the advantages of geometry and material. In contrast to previous methods of field-emitter array, laser ablation is a low-cost and clean method that does not require any photolithography or wet chemistry. However, nanocone shapes are hard to achieve through laser ablation due to the micrometer-scale focusing spot. Here, we develop an ultraviolet (UV) laser beam patterning technique that is capable of reliably realizing NCNA with a cone-tip radius of ≈300 nm, utilizing optimized beam focusing and unique carbon nanotube–light interaction properties. The patterned array provided smaller turn-on fields (reduced from 2.6 to 1.6 V/μm) in emitters and supported a higher (increased from 10 to 140 mA/cm2) and more stable emission than their unpatterned counterparts. The present technique may be widely applied in the fabrication of high-performance CNTs field-emitter arrays.

AB - The nanocone-shaped carbon nanotubes field-emitter array (NCNA) is a near-ideal field-emitter array that combines the advantages of geometry and material. In contrast to previous methods of field-emitter array, laser ablation is a low-cost and clean method that does not require any photolithography or wet chemistry. However, nanocone shapes are hard to achieve through laser ablation due to the micrometer-scale focusing spot. Here, we develop an ultraviolet (UV) laser beam patterning technique that is capable of reliably realizing NCNA with a cone-tip radius of ≈300 nm, utilizing optimized beam focusing and unique carbon nanotube–light interaction properties. The patterned array provided smaller turn-on fields (reduced from 2.6 to 1.6 V/μm) in emitters and supported a higher (increased from 10 to 140 mA/cm2) and more stable emission than their unpatterned counterparts. The present technique may be widely applied in the fabrication of high-performance CNTs field-emitter arrays.

KW - nanotechnology

KW - field electron emission

KW - carbon nanotubes

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DO - 10.3390/nano11123244

M3 - Article

SN - 2079-4991

VL - 11

JO - Nanomaterials

JF - Nanomaterials

IS - 12

M1 - 11123244

ER -

Nanocone-shaped Carbon Nanotubes Field Emitter Array Fabricated by Laser Ablation

Abstract

Funding

Keywords

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