Introduction

This TEM is the best type on the market without abberation corrector. Total costs are around 1.5 M€. It can be used to measure solid samples as well as liquid probes. The liquid sample holder allows us to observe ongoing phenomenae in-situ and to apply various electric voltages across the holder to study the influence of electric fields.

When you are interested to measure your probes - please contact us.

The TEM is composed of a gun part (100-200 kV), the column with various lens and beam deflectors, the sample space, projection spaces, and camera spaces. Different detectors including CCD camera (4k x 4k with 25fps), STEM dark field and bright field detector, and SEM detector.  A dual EDS detectors with 0.95 srad is one of the highest sensitivity on the market. The resolution of TEM is 90 pm, STEM is 140 pm, and SEM is around 400 pm.

An example here shows the atomic image of Ag nanoparticle. The interspacing of Ag atoms is 0.204 nm with cubic crystal structures. This kind of image quality can be obtained with a massive production around 10 samples a day. 

Various observation can be performed in this TEM including fast EDS mapping on core shell structure, HRTEM on carbon nanotube and catalyst, and direct interpretation of atomic structure with STEM images. 
SAED and SEM image are all very helpful for sample characterizations. 

In situ Liquid cell TEM is the emerging topic in the past 5 years which can be performed here as well, including nanocrystal growth, biomaterial, nucleation and corrosion, and electrochemistry can all be observed in-situ. 
The idea is to use two SiN membrane to encapsulate static or flowing liquid with around 50 nm and to allow the electron beam to pass the sample. We have 2 liquid cell holders: one from Protochips Inc. and another from DENS Solution Inc.