Issue 1, 2016

Charging C60 islands with the AFM tip

Abstract

We show that electrons can be transferred on demand from an AFM tip into single bulk-like C60 islands, which are supported on the insulating NaCl(001) surface. We exemplify this by controlled charge-manipulation experiments conducted in ultrahigh vacuum by noncontact AFM (nc-AFM), electrostatic force microscopy (EFM) and Kelvin probe force microscopy (KPFM). KPFM shows a homogeneous contrast at the islands, which is a signature for an equal distribution of the electrons in the T1u band. The charge dissipates during half a day due to an interaction of the charged C60 islands with defects in the near surface region of NaCl. Our results open the perspective in photo-voltaics to study charge attachment, stability and charge exchange with the environment of any C60 bulk-like system.

Graphical abstract: Charging C60 islands with the AFM tip

Supplementary files

Article information

Article type
Paper
Submitted
07 Jul 2015
Accepted
11 Nov 2015
First published
12 Nov 2015

Nanoscale, 2016,8, 411-419

Author version available

Charging C60 islands with the AFM tip

B. Hoff, C. R. Henry and C. Barth, Nanoscale, 2016, 8, 411 DOI: 10.1039/C5NR04541J

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