SPM Aarhus 150 NAP

Extremely Stable and Highly Versatile SPM Aarhus 150 SPECS for Ultimate Near Ambient Pressure Scanning Probe Microscopy Applications

Investigations of catalytic reactions on the surfaces and the attempt to bridge the pressure and material gap between UHV and “real world” applications require an ultra-stable and reliable SPM able to operate in extreme conditions. Once again, the stability and simplicity of the SPM Aarhus design allowes for the extension of the applications in the pressure range between UHV and 100 mbar by developing special near ambient pressure (NAP) design. For this SPM Aarhus head is mounted in side of an in-situ reactor cell made of inert materials (or coated with non-reactive material). By doing so, only the inside of a little reactor cell is flooded with the gas. Easy and fast on-site switch between UHV and near ambient pressure applications is possible by opening a lid on top of the reactor cell. A halogen lamp heater for high temperature applications is mounted directly on the lid allowing imaging of all kinds of samples at temperatures exceeding 850 K in UHV and 550K at 10 mbar. In-situ tip/sensor preparation by ion sputtering is still feasible when the lid of the reactor is open. A direct in-situ optical access to the sample during measurements at near ambient pressures can be used for investigation of photo catalytic reactions. Both STM tips as well as the KolibriSensor™ can be used with the system without any compromises on its stability.

KEY FEATURES

  • Extreme stability
  • Highest productivity
  • In-situ tip preparation
  • Capable of video speed scanning
  • KolibriSensor for combined nc-AFM/STM
  • SPC 260 or Nanonis™ control system
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MADE FOR THESE METHODS

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SPECIFICATIONS

SPM Aarhus 150 NAP
Mounting
Mounting Flange

150CF

Control Electronics

  • Nanonis
  • SPC 260

Performance
Temperature Stability

0.1 K

Sensitivity z Range

±175 nm

Drift Rate

< 0.05 nm/min (vert), < 0.15 nm/min (lat)

Stability

< 10 pm

Operation
In-Situ Access

Specular

Scan Range

1.200 nm x 1.200 nm

Temerature Control

2 controlled subsystems for sample & scanner

Operating Modes

  • STM
  • AFM

Sensors

  • STM tip
  • KolibriSensor

Optional Accessories

  • STM tips
  • Kolibri sensors
  • Sample holders

Required Accessories

  • STM tips
  • Kolibri sensors
  • Sample holders

Working Pressure

10-11 to 100 mbar

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PUBLICATIONS

  1. (2013) High-Temperature Scanning Tunneling Microscopy Study of the Ordering Transition of an Amorphous Carbon Layer into Graphene on Ruthenium(0001)

    The ordering transition of an amorphous carbon layer into graphene was investigated by high-temperature scanning tunneling microscopy. A disordered C layer was prepared on a Ru(0001) surface by chemical vapor deposition of ethylene molecules at ∼660 K. The carbon layer grows in the form of dendritic islands that have almost the same density as graphene. Upon annealing of the fully covered surface, residual hydrogen desorbs and a coherent but still disordered carbon layer forms, with almost the same carbon coverage as in graphene. The ordering of this layer into graphene at 920 to 950 K was monitored as a function of time. A unique mechanism was observed that involves small topographic holes in the carbon layer. The holes are mobile, and on the trajectories of the holes the disordered carbon layer is transformed into graphene. The transport of C atoms across the holes or along the hole edges provides a low-energy pathway for the ordering transition. This mechanism is prohibited in a dense graphene layer, which offers an explanation for the difficulty of removing defects from graphene synthesized by chemical methods.



    S. Günther, S. Dänhardt, M. Ehrensperger, P. Zeller, S. Schmitt, J. Wintterlin
    ACSNano, 7, N.1, 154-164 (2013)
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  2. (2008) Unique intermolecular reaction of simple porphyrins at a metal surface gives covalent nanostructures

    Deposition of a porphyrin onto metallic copper followed by heating leads to an unprecedented type of linking of the molecules giving a mixture of covalent multiporphyrin nanostructures at the surface.



    M. In't Veld, P. Iavicoli, S. Haq, D. B. Amabilino, R. Raval
    Chem. Commun. 13, 1536
    Read more
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SPARE PARTS

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Product image
Product description
Article No.
 
KolibriSensor for SPM Aarhus 150 NAP

Only for Release 1 NAP-SPM. This Kolibri Sensor is our AFM sensor adapted for the Aarhus NAP scanning probe microscope setup which allows atomic force measurements by means of the closed loop feedback of a 1GHz oscillation.

2011701017
KolibriSensor for SPM Aarhus 150 NAP

This Kolibri Sensor is our AFM sensor adapted for the Aarhus NAP scanning probe microscope setup which allows atomic force measurements by means of the closed loop feedback of a 1GHz oscillation.

2011751176
Scanner for high pressure SPM

This replacement unit for our Aarhus NAP SPM contains z-motor for tip coarse approach and the scanning piezo for fine XYZ-tip motion. Including a temperature sensor and motor heating facility.

2055012954
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DOWNLOADS

1