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Projects related to organic thin-film transistors and sensors on flexible and stretchable substrates.

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Personal profile

Personal Statement

I am a Senior Lecturer in the Department of Electronic and Electrical Engineering at the University of Strathclyde where I am leading the Organic Electronics group within the Institute for Signals, Systems, and Communications. My main research interests centre around fabrication, design, optimisation, and application of low-voltage organic transistors with ultra-thin, bi-layer dielectrics. The unique transistor design results in transistors with high transconductance. The current key applications include electronic skin and flexible and wearable thin-film sensors that combine traditional approcahes with the use of functional polymers, e.g. ferroelectric co-polymer P(VDF-TrFE). 

Previously with the Department of Electrical Engineering of Princeton University (1993-2007), USA, I pioneered the fabrication of thin-film silicon transistors on flexible glass and plastic substrates, introduced electrophotographic printing into electronic device fabrication, developed the first experimental correlation between the thin-film transistor performance and applied mechanical strain, derived the mechanical theory of thin films on foil substrates to control misalignment in flexible electronics, and made seminal contributions to the defect physics of hydrogenated amorphous silicon.

I co-authored 11 patent groups/applications, 5 book chapters and about 100 technical papers. I also directed a mid-size university microfabrication facility with 100+ users.  I am a Senior Member of IEEE and member of Materials Research Society (MRS) and Society for Information Display (SID). Since 2016 I have served as the Director of the Graduate School in the EEE Department. 

Expertise & Capabilities

  • Flexible, low-voltage organic thin-film transistors and sensors
  • Ferroelectric PVDF co-polymer and its application to sensing
  • Electro-mechanical behaviour of flexible thin-film electronics
  • Electronic device fabrication using standard and novel techniques
  • Broad range of material growth and characterization techniques

Teaching Interests

I am involved in several core modules in the first and second years.  The classes are large and the student population is composed of students studying on four different degree programs.  Consequently, my teaching methods cover traditional and innovative lecturing, hands-on tutorial support, weekly on-line quizzes with instant feedback, and laboratories requiring mandatory preparation and active participation.   

My taeching duties are:

EE105  PDP & SGT    

EE269  Electronic and Electrical Principles 2     

EE271  Electronic and Electrical Techniques and Designs 2     

Research Interests

  • Integration of thin-film devices with flexible substrates
  • Electrical response of thin-film electronics to mechanical strain
  • Novel device fabrication processes including printing and roll-to-roll fabrication
  • Low-voltage thin-film electronics
  • Electronic skin and tactile sensing
  • Electrically conducting biogels

Industrial Relevance

Curved TV screens, non-breakable displays in smart phones, functional electronic sheets that can be rolled out for occasional use, and electronics embedded in clothing are just a few examples of the recent R&D in the electronics industry. All these upcoming applications have been enabled by the changing form factor of the electronic circuits that is moving from strictly planar to curved, flexed, stretched, and draped. Such step change has been enabled by materials developed in the recent years -- organic polymers and oligomers, metal oxides, bio-functional materials, etc.

Education/Academic qualification

Doctor of Philosophy, Condensed Matter Physics, Comenius University, Bratislava, Slovakia

Award Date: 1 Jan 1993

Master of Science, Experimental Solid State Physics, Comenius University, Bratislava, Slovakia

Award Date: 1 Jan 1985


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