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

Author(s)
Chen, ShanshanCai, WeiweiChen, DavidRen, YujieLi, XuesongZhu, YanwuKang, JunyongRuoff, Rodney S.
Issued Date
2010-12
DOI
10.1088/1367-2630/12/12/125011
URI
https://scholarworks.unist.ac.kr/handle/201301/54314
Fulltext
https://iopscience.iop.org/article/10.1088/1367-2630/12/12/125011
Citation
NEW JOURNAL OF PHYSICS, v.12, pp.125011
Abstract
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.
Publisher
IOP PUBLISHING LTD
ISSN
1367-2630
Keyword
SENSORSFILMSSHEETSGAS

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