Discover ZEISS at MRS Fall

Unlike TEM/STEM, the finest probe condition that is normally achieved at the highest accelerating voltage does not always give the best resolution in the SEM where bulk specimens are normally used. SEM today has excellent performances at low voltages and implementation of multiple imaging detectors is enabling efficient acquisition of high quality SE and BSE images. By optimizing the acceptance of signal electrons, material and topographic contrast can be obtained separately with different SE detectors. Optimization of collection angle will allow preferential extraction of either atomic number or channelling contrast in the BSE imaging. Furthermore, a latest windowless SDD, whose WD is optimized to that for the imaging sweet spot, enables EDX analyses below 10 nm for a bulk specimen.

Key Learnings:

• The need to adjust working distance and voltage depending on the material
• Several examples of the data obtainable from the "sweet spot" of WD and voltage
• Realization of x-ray analysis at the imaging "sweet spot"
  
  

• Introduction to cross-section techniques
• Review of mechanical methods, BIB, FIB-SEM, ex situ USP lasers, integrated laser FIB-SEM
• LaserFIB applications and technique comparisons
  
  

In this webcast, the speaker will specify the challenges of scale-bridging analytics, in particular when identifying individual, identical M/NPs, and the various analytical techniques required to truly correlate physical and chemical properties at particle levels. The speaker will moreover demonstrate the strengths of scale-bridging analytics and will introduce correlative Raman-SEM technology as an enabler of this multi-modal analytics correlation at a single particle level.