TOF SIMS | Thermo Fisher Scientific

48ab - 응용분야/시료/제품/리소스/문의하기

Analytical characterization of light elements, like lithium, is exceedingly challenging, if not impossible, using common techniques such as energy-dispersive X-ray spectroscopy (EDS). This is also true for high-resolution material analysis of samples with very low elemental concentrations. A SIMS (secondary ion mass spectrometry) detector enables sensitive surface analysis for many industrial and research applications. The technique provides detailed elemental and isotopic information about the sample and is capable of depth profiling analysis.

SEM image of a lithium battery cathode cross-section (left) and corresponding SIMS map showing the lithium distribution (right).

Secondary ion mass spectroscopy (SIMS) is possible on DualBeam (FIB-SEM) tools as ionized particles are generated by the FIB milling process; because these particles come from a very shallow depth it is considered a surface analysis technique. Modern SIMS detectors are compact and well suited for measuring all elements of the periodic table as well as their various isotopes. The key benefits of added SIMS analysis on FIB-SEM instrumentation include:

Detection and mapping of all elements of the periodic table, including light elements such as hydrogen, lithium, boron, and carbon in difficult samples such as low-carbon steels
Excellent depth and lateral resolution, which is essential for 3D analytical characterization
High-sensitivity elemental analysis capable of detecting concentrations on the parts-per-million (ppm) level
High mass resolution
Surface composition information
Separation and analysis of all isotopes and analytical characterization of their spatial distribution

3D SIMS technology

3D SIMS technology integrates TOF-SIMS detectors into our Auto Slice & View 5 Software, providing an automated and seamless approach to multi-modal, large-volume data collection. This innovation marks a significant advancement in SIMS capabilities, offering numerous benefits:

Automated large volume SIMS analysis

Achieve detailed and extensive analysis with fewer artifacts, enhancing data accuracy and reliability.

3D SIMS imaging of uneven surfaces

Particularly beneficial for analyzing particle materials, such as battery electrodes, enabling comprehensive characterization.

Optimized geometry for SIMS

Automated functions and image matching for pre-alignment before capturing 3D SIMS data, along with stage rotation and tilting at optimized positions to ensure precision.

Seamless operation

SIMS data acquisition is fully integrated into Auto Slice & View 5 Software, ensuring a smooth and efficient user experience.

With these advancements, 3D SIMS offers outstanding capabilities for researchers and industry professionals, enabling more detailed and accurate analysis of complex materials.

Resources

On-demand webinar: Overview and applications of SIMS on DualBeam systems

Watch our recorded webinar to learn about the integration of a ToF-SIMS detector on a DualBeam system and discover its applications for materials science research using Ga+ FIB or multi-ion species Plasma FIB (Xe+, Ar+, O+).

Watch webinar

BAM L200 ion beam image and SIMS analysis of aluminum content.

Left: Ion beam image of BAM-L200, a certified reference material, at 30 kV and 1.1 pA. The area marked in red has been scanned with SIMS to collect the aluminum signal. Right: Aluminum TOF-SIMS signal (vertically integrated) showing the W8 (38 nm) and P8–P4 bands, left to right.

Fluoride content in PVDF lithium battery cathode binder material obtained with SIMS analysis

Cross-section of a lithium battery cathode with polyvinylidene fluoride (PVDF) binder material. While it is challenging for EDS to map the fluoride distribution it can be efficiently imaged using SIMS mapping (right image).