Instrumentation

Keithley 2636B System SourceMeter

Lake Shore Model 336 Temperature Controller

Unitron upright optical microscope

Characterization of properties

PPMS DYNACOOL

To study magnetoresistance, charge carrier transport, and general thermoelectric phenomena in (semi)conductive systems, the Molecular and Device Physics Laboratory has a cryogenic system for the characterization of charge, spin, and heat transport devices (PPMS DynaCool).

This instrument enables the electronic characterization of devices subjected to a wide range of temperatures down to 1.8K and exposed to the effects of magnetic fields up to 9T. Measurements carried out under high vacuum (<10^-4 Torr) with precise and progressive temperature control are fully automated and remotely accessible, making it possible to perform extended characterizations. ​

Lake Shore (Cryotronics)

To study optoelectronic phenomena in (semi)conductive systems, the laboratory has a cryogenic probe station for the characterization of electrical and optical properties under controlled conditions (Lake Shore Cryotronics CRX-VF, engineered by Janis)

This instrument enables the characterization of devices subjected to a wide range of temperatures down to cryogenic regimes while simultaneously allowing optical access through two dedicated ports positioned at the top and bottom of the sample chamber. The remaining radial ports accommodate independent micromanipulator arms for precise electrical probing of the sample. Measurements are carried out under vacuum conditions with precise and progressive temperature control.

Probe station (Inside the glovebox)

To perform electrical characterization of air-sensitive materials and devices, the laboratory has a custom probe station assembled inside an inert-atmosphere glovebox.

The system integrates a stereo optical microscope for sample alignment with two independently positionable micromanipulator arms mounted on precision translation stages, enabling direct electrical contact to the sample under visual guidance. The setup also supports gate voltage configurations.

Sample Preparation

Glovebox

To fabricate and handle air-sensitive materials and devices under controlled atmospheric conditions, the laboratory has an inert-atmosphere glovebox (Vacuum Technology Inc., VTI).

The system maintains a high-purity inert environment with oxygen and moisture levels continuously monitored and regulated through an integrated atmospheric control unit, preventing degradation of air-sensitive samples throughout all fabrication and preparation steps

Fume Hood

To prepare substrates and perform mechanical exfoliation for device fabrication, the laboratory has a cleanroom fume hood equipped with a dedicated set of instruments supporting tape-based exfoliation and lithography workflows.

Ultrasonication (Branson), for removal of particulate and organic contamination through high-frequency mechanical agitation in solvent baths.
Plasma cleaning (Ossila), for elimination of residual organic contaminants and surface activation through reactive plasma exposure.
Spin coater (Laurell Technologies, WS-650MZ-23NPPB), for uniform photoresist deposition onto the substrate prior to lithographic patterning.