Ultrafine Graphene Nanomesh with Large On/Off Ratio for High-Performance   Flexible Biosensors

doi:10.1002/adfm.201604096

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	Ultrafine Graphene Nanomesh with Large On/Off Ratio for High-Performance Flexible Biosensors
	Yang, Yanbing ; Yang, Xiangdong ; Zou, Xuming ; Wu, Shiting ; Wan, Da ; Cao, Anyuan ; Liao, Lei ; Yuan, Quan ; Duan, Xiangfeng
刊名	2nd International Conference on Two-Dimensional Layered Materials
	2017
关键词	FIELD-EFFECT TRANSISTORS THIN-FILM TRANSISTORS BILAYER GRAPHENE LARGE-AREA BAND-GAP NANORIBBONS OXIDE FABRICATION SENSOR LITHOGRAPHY
DOI	10.1002/adfm.201604096
英文摘要	Graphene is an attractive material for flexible electronics and biosensors, yet its zero bandgap nature has limited the on/off ratio of field-effect transistors (FETs) and the sensitivity of biosensors based on graphene. Graphene nanomesh (GNM), a continuous 2D graphene nanostructure with a high density of holes punched in the basal plane, has been created to introduce lateral confinement and enable improved on/off ratio. However, the GNMs produced to date typically have a relatively large dimension (constriction neck width >5 nm) and low on/off ratio (approximate to 100) limited by the resolution of the lithography process used. Here, the exploration of a directly grown mesoporous silica template is reported for the preparation of ultrafine GNMs with considerably narrower neck width (<3 nm) and strong quantum confinement to enable flexible FETs with greatly improved on/off ratio (up to 1000). With excellent electronic properties and high surface area for the functionalization of specific receptors, it is further shown that the GNM FETs can be readily used to construct highly sensitive biosensors for selective detection of human epidermal growth factor receptor 2, which is further demonstrated for real-time detection of breast cancer cells overexpressed with receptor 2 down to single-cell level. The studies provide a simple and scalable method to GNMs with potential applications for flexible nanoelectronics and biosensors.; National Natural Science Foundation of China [21422105, 51325202]; Ten Thousand Talents Program for Young Talents; SCI(E); ARTICLE; 19,SI; 27
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/473373]
专题	工学院
推荐引用方式 GB/T 7714	Yang, Yanbing,Yang, Xiangdong,Zou, Xuming,et al. Ultrafine Graphene Nanomesh with Large On/Off Ratio for High-Performance Flexible Biosensors[J]. 2nd International Conference on Two-Dimensional Layered Materials,2017.
APA	Yang, Yanbing.,Yang, Xiangdong.,Zou, Xuming.,Wu, Shiting.,Wan, Da.,...&Duan, Xiangfeng.(2017).Ultrafine Graphene Nanomesh with Large On/Off Ratio for High-Performance Flexible Biosensors.2nd International Conference on Two-Dimensional Layered Materials.
MLA	Yang, Yanbing,et al."Ultrafine Graphene Nanomesh with Large On/Off Ratio for High-Performance Flexible Biosensors".2nd International Conference on Two-Dimensional Layered Materials (2017).