Modulation-doped growth of mosaic graphene with single-crystalline p-n junctions for efficient photocurrent generation

	Modulation-doped growth of mosaic graphene with single-crystalline p-n junctions for efficient photocurrent generation
	Yan, Kai 1; Wu, Di 1; Peng, Hailin 1; Jin, Li 2; Fu, Qiang 2; Bao, Xinhe 2; Liu, Zhongfan 1
刊名	nature communications
	2012-12-01
卷号	3
英文摘要	device applications of graphene such as ultrafast transistors and photodetectors benefit from the combination of both high-quality p- and n-doped components prepared in a large-scale manner with spatial control and seamless connection. here we develop a well-controlled chemical vapour deposition process for direct growth of mosaic graphene. mosaic graphene is produced in large-area monolayers with spatially modulated, stable and uniform doping, and shows considerably high room temperature carrier mobility of similar to 5,000 cm(2)v(-1) s(-1) in intrinsic portion and similar to 2,500 cm(2)v(-1) s(-1) in nitrogen-doped portion. the unchanged crystalline registry during modulation doping indicates the single-crystalline nature of p-n junctions. efficient hot carrier-assisted photocurrent was generated by laser excitation at the junction under ambient conditions. this study provides a facile avenue for large-scale synthesis of single-crystalline graphene p-n junctions, allowing for batch fabrication and integration of high-efficiency optoelectronic and electronic devices within the atomically thin film.
WOS标题词	science & technology
类目[WOS]	multidisciplinary sciences
研究领域[WOS]	science & technology - other topics
关键词[WOS]	electron-microscopy ; films ; photodetector ; transistors ; devices ; surface ; sheets ; foils
收录类别	SCI
语种	英语
WOS记录号	WOS:000316356700047
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/138099]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Peking Univ, State Key Lab Struct Chem Unstable & Stable Speci, Coll Chem & Mol Engn, Ctr Nanochem,BNLMS, Beijing 100871, Peoples R China 2.Chinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Yan, Kai,Wu, Di,Peng, Hailin,et al. Modulation-doped growth of mosaic graphene with single-crystalline p-n junctions for efficient photocurrent generation[J]. nature communications,2012,3.
APA	Yan, Kai.,Wu, Di.,Peng, Hailin.,Jin, Li.,Fu, Qiang.,...&Liu, Zhongfan.(2012).Modulation-doped growth of mosaic graphene with single-crystalline p-n junctions for efficient photocurrent generation.nature communications,3.
MLA	Yan, Kai,et al."Modulation-doped growth of mosaic graphene with single-crystalline p-n junctions for efficient photocurrent generation".nature communications 3(2012).