Nanomagnetism & Oxides Laboratory
Solar water splitting and impedance spectroscopy experiment
This setup mounted at SPEC/LNO allows photocurrent and impedance spectroscopy measurements in the framework of hydrogen production by solar water splitting.  
A 1000 W Xe light source equipped with an IR filter are used to insolate a three-electrode electrochemical cell with UV-Visible light during water splitting reaction. A monochromator can be used for wavelength dependent photo-electrochemical efficiency measurements (e.g. IPCE). A detector is available for light calibration. I(V), IPCE and impedance spectroscopy measurements are realized using a potentiostat (Princeton Applied Research, model 263A) connected to the three electrodes of the electrolysis cell, a lock-in amplifier and a chopper.  

Software used: PowerSuite and LabView  
Associated Scientific Research:  
Optimized transition metal-oxide photo-anodes for renewable energy harvesting 
Oxide nanorods for solar water splitting obtained by aqueous chemical growth 
Contacts: H. Magnan, D. Stanescu