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Equipements

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Our reserach group has a strong experience in quantum/mesoscopic transport in hybrid systems (organic/inorganic) with strongly reduced dimensions.

Micro- and nano-fabrication

Thanks to the cleanroom of the University (figure 1), we can fabricate our quantum devices with standard techniques like optical lithography, e-beam lithography, thin film evaporation of different materials with different physical properties (insulator, metals, semiconductors and superconductors) and etching (physical and chemical).We have also an Atomic Force Microscope to characterize the surface of our thin films.

pano
Figure 1 : Photography of the photolithography room.

Carbon nanotubes growth

The group has a dedicated oven (figure 2) for growing clean carbon nanotubes at high temperatures (900°C) on substrates. Different gas lines are present and valves to tune precisely their concentration during the growth process.

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Figure 2 : Oven dedicated for the growth of carbon nanotubes.

Quantum transport

Probe station
For quick electrical characterizations at room temperature of our devices, the group has a probe station (figure 3) with AC and DC voltage sources. Conductance of the molecular junctions can be directly measured.


Figure 3 : Home-made probe station with the equipment in the back for the electrical characterizations (AC and DC voltage source, voltmeter...).

Dilution fridge
We also have a dilution fridge (figure 4) which can reach extremely low temperatures (<1K) and magnetic fields of the order of 9T. This equipement is necessary for low noise transport measurements to unravel quantum effects in physical systems (ex. : Kondo effect in a carbon nanotube-based quantum dot).

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Figure 4 : Dilution fridge designed for extremely low temperatures transport measurements.

This equipment is in constant evolution in order to perform our latest research.