Distance and Voltage Dependence of Orbital Density Imaging Using a CO-Functionalized Tip in Scanning Tunneling Microscopy

URN to cite this document:: urn:nbn:de:bvb:355-epub-745903
DOI to cite this document:: 10.5283/epub.74590

Paschke, Fabian ; Lieske, Leonard-Alexander ; Albrecht, Florian ; Chen, C. Julian ; Repp, Jascha

; Gross, Leo

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Date of publication of this fulltext: 09 Jan 2025 07:55

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Abstract

The appearance of frontier molecular ion resonances measured with scanning tunneling microscopy (STM)─often referred to as orbital density images─of single molecules was investigated using a CO-functionalized tip in dependence on bias voltage and tip–sample distance. As model systems, we studied pentacene and naphthalocyanine on bilayer NaCl on Cu(111). Absolute tip–sample distances were ...