Long-term air-stable n-type doped graphene by multiple lamination with polyethyleneimine

被引：10

作者：

Cha, Myoung-Jun ^{[1
]}

Song, Wooseok ^{[3
]}

Kim, Yooseok ^{[1
,4
]}

Jung, Dae Sung ^{[2
]}

Jung, Min Wook ^{[1
,3
]}

Lee, Su Il ^{[1
]}

Adhikari, Prashanta Dhoj ^{[1
]}

An, Ki-Seok ^{[3
]}

Park, Chong-Yun ^{[1
,2
]}

机构：

[1] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea

[2] Sungkyunkwan Univ, Dept Energy Sci, Suwon 440746, South Korea

[3] Korea Res Inst Chem Technol, Thin Film Mat Res Grp, Taejon 305600, South Korea

[4] Korea Basic Sci Inst, Div Mat Sci, Taejon 305333, South Korea

来源：

RSC ADVANCES | 2014年 / 4卷 / 71期

基金：

新加坡国家研究基金会;

关键词：

Graphene;

D O I：

10.1039/c4ra04518a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate homogeneous and air-stable n-type doping of graphene grown by thermal chemical vapor deposition. Laminated Polyethyleneimine (PEI) layers fabricated by a simple polymer solution coating were employed. The doping stability of multiple laminated structures (graphene/PEI, PEI/graphene, and graphene/PEI/graphene) was systematically investigated. The resulting graphene/PEI/graphene laminated structure was highly stable in air. Moreover, the work function and carrier concentration of doped graphene can be tuned by altering the laminated structure.

引用

页码：37849 / 37853

页数：5

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