Stream∞

In situ TEM liquid platform with heating and biasing

Perform precisely controlled dynamic liquid state experiments in your TEM with precise control over temperature, voltage and liquid composition

Key Features
- Simultaneous application of electrical and thermal stimuli - In a liquid environment
- Precise liquid control – Pressure-based pump controls flow and pressure
- Optimised imaging – Liquid thickness controlled for optimal resolution and contrast
- Extended chemistry – Use gases to pressurise liquids and create reactive saturated solutions
- Modular design – For easy cleaning prevents cross contamination
- Easily switch between STEM and TEM modes
- Universal Nano-Cell - Tip is compatible with other holders
- Perform liquid and gas studies - With the same holder
- Controllable inert gas purge – Easily switch between liquid and inert gas, ideal for microED, EELS and EDX

Modular Sample Holder

DENSoslutions modular tip design for TEM platforms

Ensure a clean experiment with a removable tip & tubing

Once the Nano-Cell is placed into self-aligning precision slot within the Sample Holder tip, the O-rings and lid are sealed and the system is ready for vacuum testing. As the tip is removable, the internal liquid tubing can be replaced at any time to avoid clogging/cross-contamination and can be cleaned

The New Nano-Cell

Controlled liquid environment within the microscope

DENSsolutions nano-cell for in situ TEM platforms

The Stream Nano-Cells radically change the way experiments in liquid are performed.

Features

Defined liquid channel and no dead volumes
Pressurized inlet and outlet to accurately define pressure and flow rate, independently
Drastically reduced bulging for easier imaging

The Nano-Cell consists of a top (A) and bottom chip (B), which together form a sealed compartment that enable you to safely perform liquid experiments inside the TEM.

The top and bottom chip both contain electron transparent windows (C&D) which enable you to image your sample. The sample is located on the bottom window (D) and can be exposed to heating or biasing, depending on the type of bottom chip you use.

Liquid Supply System – LSS

DENSsolutions Liquid supply system for precise cointrol of the microfluidic environment for LPEM

The Liquid Supply Systems (LSS) which affords users unique capabilities with precise fluidic control for in situ TEM experiments and addresses the biggest issue with in situ liquid phase TEM.

Using the new LSS, researchers will have full control over the microfluidic environment inside the Nano-Cell, i.e. the environmental MEMS sample carrier of the Stream, while simultaneously being able to independently control biasing or heating of their sample. This new system can be fully integrated providing greater flexibility and ease-of-use and while at the same time enabling complex imaging experiments in fewer steps.

In Situ TEM Study of a Battery Using the STREAM Liquid Platform

The behaviour of a battery cell was dynamically observed in a TEM using a DENSsolutions STREAM in situ TEM liquid platform. The structure of the battery electrode can be seen to change under different/precisely controlled flow rates and biasing.