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
收藏
页码：37849 / 37853
页数：5
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