Invited Talk: Organic Transistors as Sensory Platforms for Health and Environmental Applications (IEEE Sensors Council Chapter)

#sensor #detection #montreal

Organic Thin Film Transistors (OTFTs) rely on polymer-based semiconductors, dielectrics, and conductive materials, often in conjunction with some inorganic materials such as metal nanoparticles, metal oxides, etc., to create tunable device behavior. OTFTs offer many benefits for implementation as sensory platform including solution processability, cost-effectiveness, ease of manufacturing, and superior compatibility to functional nanomaterials and biomolecules. These benefits have led to intense research in using OTFT as a sensory platform for chemical, biological, and environmental applications.   

In my talk, I will share some of our recent research highlights on implementing OTFT based non-invasive biosensor technologies for detection of metabolites and proteomic biomarkers. Target applications include monitoring body homeostasis and identifying early signs of pathogenesis for certain diseases including Parkinson’s disease and Alzheimer’s disease. More specifically, the talk will cover electrolyte gated FET (EGFET) platforms, and carbon nanoparticles based OTFTs. Amongst the sensors discussed, we will take a closer look at integrating functional nanomaterials within device framework to achieve the desired sensory response. Various device design and modeling strategies will be briefly discussed.

  Date and Time




  • Date: 22 Apr 2024
  • Time: 03:00 PM to 05:00 PM
  • All times are (UTC-04:00) Eastern Time (US & Canada)
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Dr. Ravi Prakash of Carleton University


Dr. Ravi Prakash is an Associate Professor in the Department of Electronics Engineering at Carleton University. He received his bachelor’s degree (2008) in Mechanical and Biomedical Engineering from Indian Institute of Technology Madras, India, and his M.Sc. (2010) and Ph.D. (2013) in Electrical and Computer Engineering from University of Calgary, Canada. Prior to joining Carleton in 2018, he was an assistant professor in the Electrical and Computer Engineering Department at Queen's University (2017-18).

At Carleton, Dr. Prakash oversees the interdisciplinary Organic Sensor and Devices Laboratory (OSDL) where his team develops chemical and biological sensors, point-of-care diagnostic platforms, direct printed flexible and hybrid flexible electronics for wearables, and sensors for environmental monitoring applications. His research contributions have led to over 60 peer-reviewed publications, including 35 journal publications, 20 conference publications, 2 book chapters, and 3 patents.

Dr. Prakash is a senior member of the Institute of Electrical and Electronics Engineers (IEEE) and he is affiliated with several IEEE technical societies including the IEEE Engineering in Medicine and Biology Society (EMBS) and the IEEE Sensors Council. He is a licensed professional engineer in the province of Ontario.