QQ客服 官方微博 反馈留言

	Intercalation of few-layer graphite flakes with fecl3: raman determination of fermi level, layer by layer decoupling, and stability
	Zhao, Weijie1; Tan, Ping Heng1; Liu, Jian1; Ferrari, Andrea C.2
刊名	Journal of the american chemical society
	2011-04-20
卷号	133期号:15页码:5941-5946
ISSN号	0002-7863
DOI	10.1021/ja110939a
通讯作者	Tan, ping heng(phtan@semi.ac.cn)
英文摘要	We use anhydrous ferric chloride (fecl3) to intercalate graphite flakes consisting of 2-4 graphene layers and to dope graphene monolayers. the intercalant, staging, stability, and doping of the resulting intercalation compounds (ics) are characterized by raman scattering. the g peak of heavily doped monolayer graphene upshifts to similar to 1627 cm(-1). the 2-4 layer ics have similar upshifts, and a lorentzian line decoupled heavily doped monolayer. by performing raman shape for the 2d band, indicating that each layer behaves as a measurements at different excitation energies, we show that, for a given doping level, the 2d peak can be suppressed by pauli blocking for laser energy below the doping level. thus, multiwavelength raman spectroscopy allows a direct measurement of the fermi level, complementary to that derived by performing measurements at fixed excitation energy significantly higher than the doping level. this allows us to estimate a fermi level shift of up to similar to 0.9 ev. these ics are thus ideal test-beds for the physical and chemical properties of heavily doped graphenes.
WOS关键词	FERRIC-CHLORIDE ; CHARGE-TRANSFER ; SINGLE-LAYER ; GRAPHENE ; SPECTROSCOPY ; SCATTERING ; SPECTRA
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000290358200066
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2428189
专题	半导体研究所
通讯作者	Tan, Ping Heng
作者单位	1.Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China 2.Univ Cambridge, Dept Engn, Cambridge CB3 0FA, England
推荐引用方式 GB/T 7714	Zhao, Weijie,Tan, Ping Heng,Liu, Jian,et al. Intercalation of few-layer graphite flakes with fecl3: raman determination of fermi level, layer by layer decoupling, and stability[J]. Journal of the american chemical society,2011,133(15):5941-5946.
APA	Zhao, Weijie,Tan, Ping Heng,Liu, Jian,&Ferrari, Andrea C..(2011).Intercalation of few-layer graphite flakes with fecl3: raman determination of fermi level, layer by layer decoupling, and stability.Journal of the american chemical society,133(15),5941-5946.
MLA	Zhao, Weijie,et al."Intercalation of few-layer graphite flakes with fecl3: raman determination of fermi level, layer by layer decoupling, and stability".Journal of the american chemical society 133.15(2011):5941-5946.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。