Following the methods reported in Lu et al. (Langmuir 28 (2012), 12691-12695), we captured the following images of adsorbed molecules at the water-HOPG interface. All imaging was performed on an Asylum Research Cypher ES AFM using tapping mode with blueDrive photothermal excitation and an Arrow UHF-AuD probe. The sample was prepared with Millipore purified water. The resulting patches were imaged ca. 60 minutes after sample preparation.

Starting with a 1 µm scan, irregular patches are observed on the HOPG substrate:

Height image: Scan size 1 µm, scan rate 7.8 Hz, amplitude setpoint 1.2 nm

Zooming in on an edge of the patch with a 100 nm scan size reveals stripes:

Height image: Scan size 100 nm, scan rate 5.5 Hz, amplitude setpoint 0.35 nm

Zooming in to a 25 nm scan size reveals atomic resolution and defects in the stripes:

Height image: Scan size 25 nm, scan rate 10 Hz, amplitude setpoint 0.35 nm

Phase image: Scan size 25 nm, scan rate 10 Hz, amplitude setpoint 0.35 nm


If you would like to know more about this work or the Cypher ES AFM, please contact us.


Learn more

	Cypher ES AFM

Cypher ES AFM

The highest resolution fast scanning AFM with hassle-free environmental control

	blueDrive Photothermal Excitation

blueDrive Photothermal Excitation

blueDrive makes tapping mode imaging simpler, more stable, and more quantitative


Have a drink on us at the French SPM meeting next week. Julien Lopez and Raphael Barbattini. Email julien.lopez@oxi…
10:02 PM - 16 Mar 18
View more of our tweets