The Dielectrophoresis Network

at the University of Surrey


Marios Constantinou

Marios is currently a PhD student at the Advanced Technology Institute (ATI), University of Surrey, supervised by Dr Maxim Shkunov.  Part of his PhD work focuses on the investigation of the self-alignment of semiconducting nanowires (NWs) via dielectrophoresis (DEP). The semiconducting NWs are formulated into functional “inks” and deposited on predefined electrode structures, which form the conducting path of the field-effect transistors (FETs). DEP provides the purification step before the device fabrication by depositing NWs according to their length and electrical properties, with the aim of improving the fabrication of high-quality and reproducible FET structures for sensing applications. This technique will enhance the sensitivity of NW-FET sensors for chemical and biological monitoring.


He has received a Higher Diploma (2009) in Electrical Engineering from the Higher Technical Institute (HTI), Nicosia, Cyprus and a Master of Engineering (2013) in Electronic Engineering from the University of Surrey. During his third year project in electronics he demonstrated the ability of performing DEP as a NW selective technique at different collection frequencies for nanoelectronic applications.


Until now, he has presented his work at the Dielectrophoresis 2014 Conference held at the Institute of Physics (London), and he is currently preparing to submit a journal about his work on DEP.


DEP will be the his main NW deposition technique for the fabrication of NW-FET sensors providing the pathway to a new generation of low-cost, solution processed, novel printable NW-FET sensor platform in plastic electronics.