LNNano - Brazilian Nanotechnology National Laboratory

X-ray Photoelectron Spectrometer (XPS)

A new X-ray Photoelectron Spectrometer (XPS) K-Alpha (Thermo Scientific) was acquired by LNNano in January, 2014. K-alpha X-ray XPS system is a fully integrated, monochromated small-spot XPS system with depth profiling capabilities and ideal for a multi-user environment. This leap forward results in faster analysis times, improved element detection, and the possibility to acquire data at higher resolution yielding better chemical state identification.

Research proposals for external and internal users should be forwarded by CNPEM User Portal.


K-Alpha X-ray XPS key features & benefits:

  • Selectable area spectroscopy
  • Sputter depth profiling
  • Micro-focused monochromator
  • Snapshot acquisition
  • High-resolution chemical state spectroscopy
  • Insulator analysis
  • Quantitative chemical imaging
  • Acquisition — spectra, images, profiles, line scans
  • Interpretation — elemental and chemical state identification
  • Processing  — Quantification, peak fitting, real-time profile display, spectrum-image manipulation, PCA, phase analysis, TFA and optical/XPS image overlays
  • Reporting — automatic report generation with simple export to other software packages
  • Control — all hardware controlled from the Avantage software interface
  • Calibration on demand
  • Analyzer — 180° double focusing hemispherical analyzer with 128-channel detector
  • X-ray source — Al Kα micro-focused monochromator with variable spot size (30-400µm in 5µm steps)
  • Ion Gun — Energy range 100-4000eV
  • Charge Compensation — Dual beam source
  • Sample Handling — 4-axis sample stage, 60 x 60mm sample area, 20mm maximum sample thickness
  • Vacuum System — 2x 220L/s turbo molecular pumps for entry and analysis chambers
  • Thermo Scientific™ MAGCIS™ Dual Beam Ion Source
  • Tilt module for ARXPS.

Obs: information acquired from the supplier