%0 Journal Article
%T First-principles study of adsorption effect of A-Z-A graphene nanoribbons field effect transistor<br>A-Z-A型石墨烯场效应晶体管吸附 效应的第一性原理研究
%A Qin Jun-Rui
%A Chen Shu-Ming
%A Zhang Chao
%A Chen Jian-Jun
%A Liang Bin
%A Liu Bi-Wei
%A <br>秦军瑞
%A 陈书明
%A 张超
%A 陈建军
%A 梁斌
%A 刘必慰
%J 物理学报
%D 2012
%I 
%X By performing first-principles calculations, we demonstrate the electronic structure, the transport properties, and the adsorption effect of A-Z-A graphene nanoribons field effect transistor. It is concluded that the pure A-Z-A GNR-FET has typical bipolar characteristics, and energy gaps will become smaller due to the adsorbed molecule. For the adsorption of H, N2, NO2, H2O, SO2, O2 and NO, A-Z-A GNR-FET remains typical bipolar characteristic, but shows a little difference in transport property after it has adsorbed different types of molecles. For the adsorption of OH, transport property changes totally and does not have a bipolar characteristic any more. These results may contribute to the implementation of gas detector based on GNRs and the design of GNR-FET applied in complex environments.
%K graphene nanoribbons
%K graphene nanoribbons field effect transistor
%K molecule adsorption
%K electronic structure<br>石墨烯纳米带
%K 石墨烯晶体管
%K 分子吸附
%K 电子结构
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=4C92C33EB4B06FC5C4559A4314131BF1&yid=99E9153A83D4CB11&vid=1D0FA33DA02ABACD&iid=0B39A22176CE99FB&sid=DCCFE264DD62EB35&eid=1E41DF9426604740&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=22