Adsorption/desorption and electrically controlled flipping of ammonia molecules on graphene

被引：58

作者：

Chen, Shanshan ^{[1
,2
,3
]}

Cai, Weiwei ^{[1
,2
,3
]}

Chen, David ^{[2
,3
]}

Ren, Yujie ^{[2
,3
,4
]}

Li, Xuesong ^{[2
,3
]}

Zhu, Yanwu ^{[2
,3
]}

Kang, Junyong ^{[1
]}

Ruoff, Rodney S. ^{[2
,3
]}

机构：

[1] Xiamen Univ, Dept Phys, Fujian Key Lab Semicond Mat & Applicat, Xiamen 361005, Peoples R China

[2] Univ Texas Austin, Dept Mech Engn, Austin, TX 78712 USA

[3] Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA

[4] Univ Sci & Technol Beijing, Sch Mech Engn, Beijing 100083, Peoples R China

来源：

NEW JOURNAL OF PHYSICS | 2010年 / 12卷

基金：

中国国家自然科学基金;

关键词：

SENSORS; FILMS; SHEETS; GAS;

D O I：

10.1088/1367-2630/12/12/125011

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper, we evaluate the adsorption/desorption of ammonia molecules on a graphene surface by studying the Fermi level shift. On the basis of a physically plausible model, the adsorption and desorption rates of ammonia molecules on graphene have been extracted from the measured Fermi level shift as a function of exposure time. An electric-field-induced flipping behavior of the ammonia molecules on graphene is suggested based on field effect transistor (FET) measurements.

引用

页数：8

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