Protochips Fusion Select
In-Situ Heating and Electrical System for TEM / SEM
Enhance the capabilities of your electron microscope with in-situ heating, electrical and electrothermal analysis. Observe your sample’s behaviour at the nanoscale at precisely controlled temperatures and under electrical biasing.
The new Fusion Select features a patented double-tilt design for beta tilts up to ±20° with fixed probes for greater stability and accuracy.
- Heating up to 1200°C
- >99.5% temperature uniformity across the entire imaging area;
56x more uniform than coil heating
- Minimal displacement and drift
- Up to 1000°C/ms heating/cooling rate
- Low currents for characterising nanoscale samples
- Highly accurate single digit picoamp measurements
- Attoamp sensitivity for very low currents at the nanoscale
- 4-point probing for greater flexibility
- Over 30 sample supports for every application
- Simultaneous heating and electrical biasing
- Observe and measure electrical properties as a function of temperature
- Silicon carbide heater with tungsten electrodes
- Single software interface for controlling both modes
- Programme electrical and/or thermal stimuli as waveforms
- Adjust parameters during experiments
- Observe data in real time and watch a plot of the results.
- Synchronise images and data (optional) – and synchronise with Gatan DigitalMicrograph
The Fusion Select is a new version of the system, featuring a range of improvements and new functionality.
The system is now completely configurable, so you can choose only the features you need, with the potential to expand in future as you need to.
- Patented double tilt design for beta tilts up to ±20°
- New electrothermal e-chips
- More electrical contacts for greater flexibility
- Redesigned software for viewing data more easily
Full details about the new model are available here.
High Temperature Nanoparticle Dynamics
2D Materials Heated to 500ºC
Atomic Rearrangement of Carbide Monolayer
Environmental TEM: Ceria (CeO2)
Gold Nanoparticles at 600°C
Gold Nanoparticles on FeOx
Schott Glass Melting
AgCu Nanoparticle Heat Quench
Heating Suspended Nanoparticles In-Situ
- Semiconductor Nanowire Formation
Study of the crystallisation process by CNRS published in PRL
- Thermal Drift and Settle Times measured for Different Temperature Excursions in the TEM
Advantages of Fusions heating membrane in drift and settle time.
- EDS with TEM and SEM
The Fusion provides the clear line of sight necessary for EDS compatibility. Elemental maps were collected from two samples.
- Thermal Stability of LAST Thermoelectric Material
Heating Lead Antimony Silver Telluride to observe the effects on elemental components with SEM.
- AU Nanoparticles
Imaging at 600 °C with a resolution of .7 Angstroms, using the TEAM 0.5 TEM.
- In Situ FCC to L10 Tetragonal Phase Transition of Magnetic FePt Nanoparticles
Observing the formation of the fcc to L10 phase transition.
- 2D Materials
Analysing the defect structure of h-BN at high temperature.
- Electrical Switching Mechanisms in ZnO-Based ReRAM Devices
Using Fusions’ electrical biasing tools to apply voltage to a ReRAM device, while measuring current in situ.
- Manipulating the Atomic Structure of Graphene
Controlling the electronic properties of graphene in situ, to expand its potential in nanoelectronic applications.
- Off-Axis Electron Holography
Electron holography measures the phase shift of electrons caused by electric and magnetic fields after they pass through the sample. Here it was conducted at high temperature, in an oxidising environment.
- ZrO2 Nanoparticle Sintering
Research into different sintering mechanisms using thermal and electrothermal E-chips, with simultaneous heating and electric current.
Case Study: Electric-Field Assisted Sintering of ZrO2
Sintering involves forming a solid mass of material without melting it. Voids and pores often form, which weaken the material. Sintering by temperature alone requires high temperatures up to around 80% of the melting point. It’s a lengthy process that takes several hours.
Using electrical current alongside heating speeds up the process and lowers the temperature required. However, the role of current at the nanoscale is still largely unknown.
Until recently there was not a commercially available solution that could both heat and apply current to a sample within an electron microscope.
Researchers at University of California studied sintering mechanisms in yttria-stabilized ZrO2 (3YSZ). TEM and SEM images were used to monitor the micro-structural evolution of the agglomerates during densification.
They used the Protochips Fusion to apply 900 °C to the sample. The structure remained unchanged for 106 minutes. Then the temperature was raised to 1200 °C, and the pores shrank.
To see the effect of electrical current, the researchers applied a field of 500V/cm and a temperature of 900 °C. After just 4 minutes, pore shrinkage and coalescence occurred, confirming the field-assisted sintering.
Watch a 1 hour recorded webinar about advanced correlative studies with in-situ heating, spectroscopy and microscopy: