Direct Synthesis of Graphene Dendrites on SiO2/Si Substrates by Chemical Vapor Deposition

• Published in: Nanoscale research letters Vol. 15; no. 1; pp. 16 - 10
• Main Authors: Li, Yingxian, Li, Zhenhua, Li, Qingbo, Tian, Meng, Li, Chunhui, Sun, Li, Wang, Jihua, Zhao, Xian, Xu, Shicai, Yu, Fapeng
• Format: Journal Article
• Language: English
• Published: New York Springer US 17.01.2020; Springer Nature B.V; SpringerOpen
• Subjects: Chemical vapor deposition; Chemistry and Materials Science; CVD; Dendrites; Electron mobility; Fabrication; Graphene; Graphene dendrites; Hall effect; Hydrogels; Materials Science; Mechanical properties; Modulus of elasticity; Molecular Medicine; Morphology; Nano Express; Nanochemistry; Nanoelectronic applications; Nanoscale Science and Technology; Nanotechnology; Nanotechnology and Microengineering; Organic chemistry; Silicon dioxide; Silicon substrates; SiO2/Si substrates; Substrates; Synthesis; Vapors; CVD; SiO; Graphene dendrites; Si substrates; Nanoelectronic applications
• ISSN: 1931-7573; 1556-276X
• DOI: 10.1186/s11671-020-3245-y

The long-standing interest in graphene has recently brought graphene-derived materials including graphene hydrogel, graphene fiber and graphene paper into sharp focus. These graphene-derived materials show outstanding properties in mechanics and physics. In this paper, for the first time, we demonstrate the novel synthesis of graphene dendrites on SiO 2 /Si substrates by chemical vapor deposition. The tree-like graphene dendrites with well-controlled morphology can be directly grown on both the Si and the SiO 2 surfaces of the substrates by using methane and hydrogen as precursors. The graphene dendrites on SiO 2 /Si substrates can be directly used in the fabrication of the electronic device. The conductivity and the Hall mobility of graphene dendrites are ~ 286 Scm −1 and ~ 574 cm 2 (Vs) −1 , respectively. Young’s modulus of graphene dendrites is up to 2.26 GPa. The developed method avoids the need for a metal substrate and is scalable and compatible with the existing semiconductor technology, making graphene dendrites be very promising in nanoelectronic applications.