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Intercalation of Few-Layer Graphite Flakes with FeCl3: Raman Determination of Fermi Level, Layer by Layer Decoupling, and Stability

文献类型：期刊论文

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作者Zhao WJ; Tan PH; Liu J; Ferrari AC; Tan, PH, Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China. phtan@semi.ac.cn
刊名journal of the american chemical society ; JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
出版日期2011 ; 2011
卷号133期号:15页码:5941-5946
关键词FERRIC-CHLORIDE CHARGE-TRANSFER SINGLE-LAYER GRAPHENE SPECTROSCOPY SCATTERING SPECTRA Ferric-chloride Charge-transfer Single-layer Graphene Spectroscopy Scattering Spectra
ISSN号0002-7863 ; 0002-7863
通讯作者tan, ph, chinese acad sci, inst semicond, state key lab superlattices & microstruct, beijing 100083, peoples r china. phtan@semi.ac.cn
学科主题半导体物理 ; 半导体物理
收录类别SCI
资助信息national natural science foundation of china [10934007, 10874177]; special funds for the major state basic research of china [2009cb929301]; erg ; epsrc [ep/g042357/1]; royal society ; eu [pitn-ga-2010-264694]; nokia research centre, cambridge
语种英语 ; 英语
资助机构National Natural Science Foundation of China [10934007, 10874177]; special funds for the Major State Basic Research of China [2009CB929301]; ERG ; EPSRC [EP/G042357/1]; Royal Society ; EU [PITN-GA-2010-264694]; Nokia Research Centre, Cambridge
公开日期2011-07-05 ; 2011-07-15 ; 2011-07-05
附注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.
源URL[http://ir.semi.ac.cn/handle/172111/20847]  
专题半导体研究所_半导体超晶格国家重点实验室
通讯作者Tan, PH, Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China. phtan@semi.ac.cn
推荐引用方式
GB/T 7714		 Zhao WJ,Tan PH,Liu J,et al. Intercalation of Few-Layer Graphite Flakes with FeCl3: Raman Determination of Fermi Level, Layer by Layer Decoupling, and Stability, 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, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2011, 2011,133, 133(15):5941-5946, 5941-5946.
APA Zhao WJ,Tan PH,Liu J,Ferrari AC,&Tan, PH, Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China. phtan@semi.ac.cn.(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 WJ,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.

入库方式： OAI收割

来源：半导体研究所

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