Crystalline transformation from ta-C to graphene induced by a catalytic Ni layer during annealing

doi:10.1016/j.diamond.2019.107556

	Crystalline transformation from ta-C to graphene induced by a catalytic Ni layer during annealing
	Li, Hanchao1,2 ; Li, Xiaowei 1,4; Wei, Jing 1; Wang, Zhenyu 1; Guo, Peng 1; Ke, Peiling 1,3; Saito, Hidetoshi 5; Cui, Ping1,2 ; Wang, Aiying 1,3
	2020-01
发表期刊	DIAMOND AND RELATED MATERIALS (IF:4.3[JCR-2023],3.9[5-Year])
ISSN	0925-9635
EISSN	1879-0062
卷号	101
发表状态	已发表
DOI	10.1016/j.diamond.2019.107556
摘要	As an alternative strategy to fabricate high-performance graphene over a large area, metal catalysis has been attempted at elevated temperatures with various solid carbon sources such as polymers and amorphous carbon. Due to the diversity of amorphous carbon materials and the variety of metal catalysts used in the processes, the crystalline transformation from the amorphous carbon state to the graphene phase is not yet clearly understood. Here, we fabricated hydrogen free tetrahedral amorphous carbon (ta-C) as a solid carbon source, and nickel was chosen for the catalytic metal layer, which thereafter were integrated into a designed Si/SiO2/ta-C/Ni sandwich structure. The effect of thermal annealing in the range of 400 degrees C to 900 degrees C on the transformation of atomic carbon bonds was investigated. The results showed that the formation of the graphene phase emerged at an annealing temperature of 600 degrees C. Further increasing the temperature to 900 degrees C stimulated enhanced quality of graphene, but the quality was poor due to the oversaturated carbon content and the agglomeration of the Ni layer. Decreasing the thickness of ta-C to 2 nm led to graphene with 3-4 layers at a temperature of 800 degrees C, where metal-induced layer exchange was proposed as the key factor for the crystalline transformation from ta-C to graphene during thermal annealing. The results introduce a new strategy for the fabrication of high-quality graphene from tetrahedral amorphous carbon.
关键词	Amorphous carbon Nickel catalyst Graphene Thermal annealing
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	Major Science and Technology Project of Jiangbei District, Ningbo[201801A03]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000510954000057
出版者	ELSEVIER SCIENCE SA
WOS关键词	AMORPHOUS-CARBON ; FILMS ; TRANSISTORS
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/67974
专题	物质科学与技术学院_特聘教授组物质科学与技术学院_特聘教授组_崔平组物质科学与技术学院_博士生
通讯作者	Wang, Aiying
作者单位	1.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Key Lab Marine Mat & Protect Technol, Key Lab Marine Mat & Related Technol,Ningbo Inst, Ningbo 315201, Peoples R China 2.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 3.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China 4.Korea Inst Sci & Technol, Computat Sci Ctr, Seoul 136791, South Korea 5.Nagaoka Univ Technol, Grad Sch Engn, 1603-1 Kamitomioka Machi, Nagaoka, Niigata 9402188, Japan
第一作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Li, Hanchao,Li, Xiaowei,Wei, Jing,et al. Crystalline transformation from ta-C to graphene induced by a catalytic Ni layer during annealing[J]. DIAMOND AND RELATED MATERIALS,2020,101.
APA	Li, Hanchao.,Li, Xiaowei.,Wei, Jing.,Wang, Zhenyu.,Guo, Peng.,...&Wang, Aiying.(2020).Crystalline transformation from ta-C to graphene induced by a catalytic Ni layer during annealing.DIAMOND AND RELATED MATERIALS,101.
MLA	Li, Hanchao,et al."Crystalline transformation from ta-C to graphene induced by a catalytic Ni layer during annealing".DIAMOND AND RELATED MATERIALS 101(2020).