Cryo-stage capability on NanoWizard AFM systems
JPK Instruments has chosen Linkam Scientific Instruments to supply a customized version of one of its cryo-stage systems to enable surface properties to be studied over an extended temperature range.
Bringing the technologies together has enabled JPK to offer cryo-stage capability for its NanoWizard AFM systems.
This means AFM users may now study surface property changes as a function of temperature over the range of -120 °C to +220 °C.
“The goal of the CryoStage product development was to offer a versatile heating and cooling platform in one single piece of equipment," points out JPK head of applications, Dr Heiko Haschke.
"One of the main challenges is to design a stage for heating and cooling the sample while simultaneously performing AFM experiments. In addition, a controlled gas and ice free environment chamber needs to be guaranteed," he adds. "Having set the target of a temperature range of from below -100 °C to above +200 °C, we were able to customise Linkam's cryo-technology and obtain sample cooling to -120 °C and heating to +220 °C.”
Linkam's customised Cryo-Stage with the JPK Instruments NanoWizard AFM
The JPK Instruments CryoStage targets many applications in materials science and life science.
For example, the broad temperature range helps the study of several phase transitions of polymer films in one experiment observed on the nanometre scale. The imaging of a crystalline polyethylene film at -120 °C has been performed.
Electrical and magnetic changes of surfaces may also be studied with varying temperature.
These and other applications of thermal property studies such as cryopreservation will be looked at in future work.
Learn more here.