Selective Analysis of Molecular States by Functionalized Scanning Tunneling Microscopy Tips | Zendy

Zhitao Deng | Zendy; Haiping Lin | Zendy; Wei Ji | Zendy; Gao Li | Zendy; Xiao Lin | Zendy; Zhihai Cheng | Zendy; Weidong He | Zendy; Junpeng Lu | Zendy; Dayong Shi | Zendy; Werner A. Hofer | Zendy; HongJun Gao | Zendy

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Selective Analysis of Molecular States by Functionalized Scanning Tunneling Microscopy Tips

Author(s) -

Zhitao Deng,

Haiping Lin,

Wei Ji,

Gao Li,

Xiao Lin,

Zhihai Cheng,

Weidong He,

Junpeng Lu,

Dayong Shi,

Werner A. Hofer,

HongJun Gao

Publication year - 2006

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.96.156102

Subject(s) - scanning tunneling microscope , perylene , monolayer , materials science , molecule , chemical physics , scanning tunneling spectroscopy , quantum tunnelling , microscopy , scanning probe microscopy , nanotechnology , adsorption , optoelectronics , chemistry , optics , physics , organic chemistry

Selective analysis of molecular states in scanning tunneling microscopy (STM) has so far been achieved in a few cases by tuning the bias range of the STM in high-resolution measurements. Correspondingly, perylene adsorbed in a close-packed monolayer on Ag(110) is imaged mainly through the pi states of the molecule. By contrast, functionalizing the STM tip with a perylene molecule leads to a mismatch between the energy levels of the STM tip and the molecule adsorbates and, instead, images only the metal states of the underlying silver surface. The observation opens a route for better energy selectivity in electron transport measurements through organic interfaces.

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