Electric Property Evolution of Structurally Defected Multilayer Graphene

被引：169

作者：

Kim, Kanghyun ^{[1
,2
]}

Park, Hyung Ju ^{[2
]}

Woo, Byung-Chill ^{[2
]}

Kim, Kook Jin ^{[2
]}

Kim, Gyu Tae ^{[1
]}

Yun, Wan Soo ^{[2
]}

机构：

[1] Korea Univ, Sch Elect Engn, Seoul 136701, South Korea

[2] KRISS, Adv Technol Div, Taejon 305340, South Korea

来源：

NANO LETTERS | 2008年 / 8卷 / 10期

关键词：

D O I：

10.1021/nl8010337

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report on the influence of structural disorder on the electrical properties of multilayer graphene (MLG). Exponential decreases in the conductance and transconductance with increase of defects in the MLG were observed, which could be explained by the percolation and the variable range hopping conduction. An enhancement of p-type nature with increasing disorders was considered to be the result of oxygen doping in the graphene sheets introduced by oxygen plasma. The rapid increase of low-frequency noise was attributed to the formation of conductive network through the continuum percolation, as the low-frequency noise could be increased by the enhanced carrier scattering at the defect sites. We hope that our result should suggest a simple method of tuning the electrical properties of graphene.

引用

页码：3092 / 3096

页数：5

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