Sabancı University Physics - MAT - EE Seminar
Title: Emerging applications of 2-dimensional material inks for electronics, optoelectronics and photonics
Speaker: Tawfique Hasan, Cambridge Graphene Centre, University of Cambridge, Cambridge, UK
Date/Time: February 17, 2016 Wednesday at 13:40
Place: Sabancı University, FENS G035
Emerging applications of 2-dimensional material inks for electronics, optoelectronics and photonics
Cambridge Graphene Centre, University of Cambridge, Cambridge, UK.
Graphene and related 2-dimensional materials represent a family of nanomaterials attractive for next generation flexible (opto)electronic and photonic devices. An economic approach to fully exploit their unique properties is to develop functional inks of these materials, ultrathin flakes separated from their bulk crystals and stably suspended in compatible solvents. The inks offer device fabrication and integration strategies through different processes, such as polymer composites, digital and lithographic printing as well as roll-to-roll (R2R) and spray coating over a large area.
I will discuss a range of photonic and (opto)electronic applications using these ink systems. Focus will be on graphene, the most established ink platform to date. I will show inkjet printed electrodes and devices, including CMOS integrated inkjet printed humidity sensors, hybrid nanomaterial transparent conductors and electrodes on a range of substrates for smart windows, electroluminescent devices, touchpads and ultrafast lasers. I will conclude with my future vision in terms of technologies and devices that may evolve from these materials and ink systems.
Dr Tawfique Hasan is a University Lecturer in Electronic Materials and Devices at the Cambridge Graphene Centre, Cambridge University Engineering Department. He is also the Director of the Master of Research program in Graphene Technology and the Deputy Director for Teaching and Training of the Centre for Doctoral Training in Graphene Technology.
Dr Hasan gained his PhD in Electrical Engineering from the University of Cambridge in 2009. During his PhD, he worked on carbon nanotube solutions for ultrafast optical pulse generation. Prior to his PhD, he obtained his MEng. in Microelectronics from University of New South Wales, Australia and a BSc in Electrical and Electronic Engineering from Islamic University of Technology, Bangladesh.
Dr Hasan has held several research positions in the University since his PhD, including a prestigious Royal Academy of Engineering Research Fellowship to work on graphene based flexible and printable devices. This led to the foundation of Cambridge Graphene Limited, where he is a co-founder and director.
Hasan’s current research focuses on formulation of functional 1- and 2-dimensional nanomaterial inks for a wide range of printable and flexible applications including ultrafast lasers, printable and flexible (opto)electronic, sensing and energy devices such as photovoltaic devices, supercapacitors and Li-ion batteries. Hasan has over 50 research articles with ~5900 citations and an h-index of 26.
Dr Hasan is a Director of Studies in Engineering and a Title A Fellow in Churchill College, Cambridge.