论文标题
通过藻类蒸气沉积的地面耦合反应通过地面耦合反应的几层绘图型生长
Few-Layered Graphyne Growth by an On-Surface Coupling Reaction via Alkynyl Vapour Deposition
论文作者
论文摘要
由三倍（SP）和双（SP2）键杂交碳原子组成的绘画家族是纳米级电子设备的开发的有希望的同类碳。与石墨烯不同，由于单体不稳定性和侧反应，含有碳键键的GY家族仍然是有效的二维（2D）生长的一个未解决的问题。本文中，我们使用1,3,5-3,5-Tribromo-2,4,6-三乙烯尼苯苯（TBTEB）在低温下通过化学蒸气沉积（CVD）合成单个2D层。通过铜表面上TBTEB单体之间的表面固定耦合的CVD生长的GY可以通过侧反应消除一维（1D）或三维（3D）生长。 CVD生长的GY在两个相邻的六角形之间的连接中表现出包含单个SP碳键的六边形晶格结构，其中包括伽玛 - gy的结构。这项工作为合成大规模和单晶Gy的新途径开辟了新的途径，该途径能够具有理论上预期的特性的多功能应用。
A graphyne (GY) family composed of the triple (sp) and double (sp2) bonds-hybridized carbon atoms is a promising allotrope of carbon for the development of nanoscale electronic devices. Unlike graphene, the GY family containing carbon sp bonds remains an unsolved problem in efficient two-dimensional (2D) growth due to monomer instability and side reactions. Herein, we synthesize GY into a single 2D layer by chemical vapor deposition (CVD) at low temperatures preventing unexpected reactions, using 1,3,5-tribromo-2,4,6-triethynylbenzene (TBTEB). The CVD-grown GY via a surface-confined coupling between TBTEB monomers on a copper surface can be rid of either one-dimensional (1D) or three-dimensional (3D) growths via side reactions. The CVD-grown GY exhibits a hexagonal lattice structure containing a single sp-carbon bond in a link between two adjacent hexagons, consisting with the structure of gamma-GY. This work opens a new avenue for synthesizing large-scale and single-crystalline GY that can be capable of versatile applications with theoretically expected properties.
