title: Molecular sensing with the tunnel junction of an Au nanogap in solution.
abstract: The tunnel junction of a gold nanogap was fabricated electrochemically for a molecular sensing device in solution. The tunnel junction was sensitive enough to detect the variation of a potential barrier within the nanogap, such as the chemical adsorption of molecules. By monitoring the variation of the tunneling current, which represents the change of a potential barrier due to molecular adsorption, the molecules could be detected.
authors: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Graduate University of the Chinese Academy of Sciences, Changchun, Jilin 130022, People's Republic of China.
authors: Xiaodong
authors: X
authors: Dong
authors: Yong
authors: Y
authors: Xia
authors: Guoyi
authors: G
authors: Zhu
authors: Bailin
authors: B
authors: Zhang