laboratoire pierre aigrain
électronique et photonique quantiques
 
laboratoire pierre aigrain
 

Séminaire - 9 février 2009

Dr Michael Johnston, <br class='autobr' />Clarendon Laboratory, University of Oxford, UK
Terahertz spectroscopy of charge carrier dynamics at nanoscale interfaces

Measuring the electrical properties of semiconductor nanostructures is often difficult and unreliable owing to the complexity
of forming suitable contacts to these materials. Terahertz radiation may be utilised as a convenient non-contact probe of a
material’s AC conductivity, thereby removing the need to form contacts. In this seminar I will provide an introduction to
THz AC conductivity measurements and present our latest results on the electrical properties of III-V nanowires,
InP honeycomb structures, charge ordered nickelates, polymer-fullerene blends and quantum cascade lasers.