CANVAS (Nion UltraSTEM 100)

CANVAS (a system for Controlled Alteration of Nanomaterials in Vacuum down to the Atomic Scale) is built around an aberration-corrected ultra-high vacuum scanning transmission electron microscope, connecting several experimental stations in the same near-ultrahigh-vacuum. It allows preparation and growth of materials in a protective atmosphere (Ar glove box) and in vacuum (thermal and ebeam evaporators), their controlled manipulation (Specs plasma source), atomic force microscopy and mechanical testing (GeTEC AFSEM by Quantum Design), and atomic-resolution microscopy and spectroscopy (Nion UltraSTEM 100). The Nion UltraSTEM 100 has a constant-current operation mode for voltages between 55 and 100 kV with a probe size of ca. 1 Ångström. Its objective area has been modified for experiments in controlled atmospheres between 10-10 and 10-6 mbar and laser heating through a view port.

Contact: Clemens Mangler or Jani Kotakoski (PNM)
Location: Universitätssternwarte, PNM Laboratory
Phone: +43-1-4277-42888

Photograph of the experimental setup showing the Nion UltraSTEM 100 microscope and attached vacuum pipes covered with kapton tape.