Nanocone-Shaped Carbon Nanotubes Field-Emitter Array Fabricated by Laser Ablation
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...
| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/12/3244 |
| _version_ | 1797502084279435264 |
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| author | 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 |
| author_facet | 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 |
| author_sort | Jiuzhou Zhao |
| collection | DOAJ |
| description | 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/cm<sup>2</sup>) 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. |
| first_indexed | 2024-03-10T03:27:49Z |
| format | Article |
| id | doaj.art-eb88d40a940a49149772de87a68f1460 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T03:27:49Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-eb88d40a940a49149772de87a68f14602023-11-23T09:49:55ZengMDPI AGNanomaterials2079-49912021-11-011112324410.3390/nano11123244Nanocone-Shaped Carbon Nanotubes Field-Emitter Array Fabricated by Laser AblationJiuzhou Zhao0Zhenjun Li1Matthew Thomas Cole2Aiwei Wang3Xiangdong Guo4Xinchuan Liu5Wei Lyu6Hanchao Teng7Yunpeng Qv8Guanjiang Liu9Ke Chen10Shenghan Zhou11Jianfeng Xiao12Yi Li13Chi Li14Qing Dai15Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, ChinaCAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, ChinaDepartment of Electronic and Electrical Engineering, University of Bath, Bath BA2 7AY, UKCAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, ChinaCAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, ChinaCAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, ChinaTianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, ChinaCAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, ChinaCAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, ChinaCAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, ChinaCAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, ChinaCAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, ChinaCAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, ChinaTianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, ChinaCAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, ChinaCAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, ChinaThe 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/cm<sup>2</sup>) 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.https://www.mdpi.com/2079-4991/11/12/3244nanocone arrayfield emissioncarbon nanotubeslaser ablation |
| spellingShingle | 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 Nanocone-Shaped Carbon Nanotubes Field-Emitter Array Fabricated by Laser Ablation Nanomaterials nanocone array field emission carbon nanotubes laser ablation |
| title | Nanocone-Shaped Carbon Nanotubes Field-Emitter Array Fabricated by Laser Ablation |
| title_full | Nanocone-Shaped Carbon Nanotubes Field-Emitter Array Fabricated by Laser Ablation |
| title_fullStr | Nanocone-Shaped Carbon Nanotubes Field-Emitter Array Fabricated by Laser Ablation |
| title_full_unstemmed | Nanocone-Shaped Carbon Nanotubes Field-Emitter Array Fabricated by Laser Ablation |
| title_short | Nanocone-Shaped Carbon Nanotubes Field-Emitter Array Fabricated by Laser Ablation |
| title_sort | nanocone shaped carbon nanotubes field emitter array fabricated by laser ablation |
| topic | nanocone array field emission carbon nanotubes laser ablation |
| url | https://www.mdpi.com/2079-4991/11/12/3244 |
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