In Situ Construction of Hierarchical Diamond Supported on Carbon Nanowalls/Diamond for Enhanced Electron Field Emission

doi:10.1021/acsami.9b18004

IMR OpenIR

	In Situ Construction of Hierarchical Diamond Supported on Carbon Nanowalls/Diamond for Enhanced Electron Field Emission
	Zhai, Zhaofeng 1,3; Huang, Nan 1; Yang, Bing 1; Liu, Lusheng 1; Li, Haining 1,3; Chen, Junnan 1,3; Zhang, Bingsen 1; Jiang, Xin 1,2
通讯作者	Huang, Nan(nhuang@imr.ac.cn) ; Jiang, Xin(xjiang@imr.ac.cn)
	2020-02-19
发表期刊	ACS APPLIED MATERIALS & INTERFACES
ISSN	1944-8244
卷号	12 期号:7 页码:8522-8532
摘要	The integration of sp(2)-/sp(3)-bonded carbon has aroused increasing attention on attaining a great electron field emission (EFE) performance. Herein, a novel hierarchical diamond@carbon nanowalls/diamond (D@C/D) architecture is facilely prepared through the growth of the hybrid carbon nanowalls/diamond (C/D) film followed by the in situ hydrogen plasma treatment using microwave plasma chemical vapor deposition. The hierarchical D@C/D architecture is composed of thin diamond nanoplatelets sandwiched into carbon nanowalls (CNWs) as the bottom layer and the thickened nanoplatelets constituted by diamond nanograins as the upper layer. The hydrogen plasma plays an effective role in the transformation of sacrificial sp(2)-bonded CNWs to sp(3)-bonded diamond, eventually leading to the template thickening of diamond nanoplatelets in the upper layer. Impressively, the D@C/D-90 film demonstrates much better EFE behaviors of low turn-on potential (E-o = 4.3 V mu m(-1)), high current density (J(e)@8 V mu m(-1) = 20.81 mA cm(-1)), and superior long-term stability, in comparison with the pristine C/D film (E-o = 6 V mu m(-1), J(e)@8 V mu m(-1) = 0.33 mA cm(-1)). The enhanced EFE performance of the hierarchical D@C/D film is ascribed to the well established grahite pathway for electrons transported from the bottom to the top and the increased diamond emitting sites with negative electron-affinity and robust nature at the top. This work will promote the development of the high-performance cathode EFE material based on hybrid sp(2)/sp(3)-bonded carbon, and the method proposed here also provides an effective strategy to construct a diamond nanostructure for various applications.
关键词	hierarchical structure carbon nanowalls diamond nanoplatelets hydrogen plasma treatment electron field emission
资助者	Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science ; National Natural Science Foundation of China
DOI	10.1021/acsami.9b18004
收录类别	SCI
语种	英语
资助项目	Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science[20180510009] ; National Natural Science Foundation of China[51202257]
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000515214300072
出版者	AMER CHEMICAL SOC
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/137529
专题	中国科学院金属研究所
通讯作者	Huang, Nan; Jiang, Xin
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Siegen, Inst Mat Engn, D-57076 Siegen, Germany 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhai, Zhaofeng,Huang, Nan,Yang, Bing,et al. In Situ Construction of Hierarchical Diamond Supported on Carbon Nanowalls/Diamond for Enhanced Electron Field Emission[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(7):8522-8532.
APA	Zhai, Zhaofeng.,Huang, Nan.,Yang, Bing.,Liu, Lusheng.,Li, Haining.,...&Jiang, Xin.(2020).In Situ Construction of Hierarchical Diamond Supported on Carbon Nanowalls/Diamond for Enhanced Electron Field Emission.ACS APPLIED MATERIALS & INTERFACES,12(7),8522-8532.
MLA	Zhai, Zhaofeng,et al."In Situ Construction of Hierarchical Diamond Supported on Carbon Nanowalls/Diamond for Enhanced Electron Field Emission".ACS APPLIED MATERIALS & INTERFACES 12.7(2020):8522-8532.