Synthesis and characterization of intercalated few-layer graphenes

被引：2

作者：

Sato, Shogo ^{[1
]}

Ichikawa, Hiroaki ^{[1
]}

Iwata, Nobuyuki ^{[1
]}

Yamamoto, Hiroshi ^{[1
]}

机构：

[1] Nihon Univ, Coll Sci & Technol, Funabashi, Chiba 2740063, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2014年 / 53卷 / 02期

关键词：

FIELD-EFFECT TRANSISTORS; GRAPHITE; LITHIUM; COMPOUND; CALCIUM; METAL; SUPERCONDUCTIVITY; DEPOSITION; SODIUM;

D O I：

10.7567/JJAP.53.02BD04

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Toward achieving room-temperature superconductivity, FeCl3-intercalated few-layer graphenes (FeCl3-FLGs) and Ca-intercalated few-layer graphenes (Ca-FLGs) were synthesized. FeCl3-FLGs were synthesized by the two-zone method and Ca-FLGs were synthesized using Ca-Li alloy. The Raman spectra of the FeCl3-FLGs showed a lower-intensity peak at 1607 cm(-1) than that of the corresponding bare G. The peak at 1607 cm(-1) suggested that the sample was stage 4-5 FeCl3-FLGs. The room-temperature electrical resistivity of FeCl3-FLGs was 2.65 x 10(-5)Omega.m, which linearly decreased with decreasing temperature with a marked change occurring at approximately 200K. From a XRD pattern of Ca-FLGs, we concluded that Ca is intercalated in FLGs. The room-temperature resistivity of Ca-FLGs was 3.45 x 10(-5)Omega.m, which increased with decreasing temperature. (C) 2014 The Japan Society of Applied Physics

引用

页数：4

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