报告题目: Printable 2D crystals: Challenges
towards manufacturability
报告人：Tawfique Hasan
单位：Cambridge Graphene Centre, University of
Cambridge, United Kingdom
报告时间地点：2019年4月14日下午14：00点，浙江大学玉泉教三338
简介：Dr Tawfique Hasan is a Reader (Associate
Professor) in Nanomaterials Engineering in the Cambridge Graphene Centre,
Cambridge University Engineering Department. He also holds a concurrent
professorship at Nanjing University, and is a Title A Fellow and a Director of
Studies in Engineering in Churchill College, Cambridge. Before joining as a
University Lecturer in Cambridge in 2013, he was awarded a Royal Academy of
Engineering Research Fellowship, a Junior Research Fellowship at Kings College,
Cambridge and an NSFC International Young Scientist Research Fellowship.
Tawfique leads a research group within the
Cambridge Graphene Centre, with core interest in functional ink formulation of
2D materials for printed (opto)electronics, photonics and wearables as well as
novel porous metal oxide and their hybrids for energy and connected sensors.
Together with his graduate students and colleagues, he initiated the field of
2D crystal printable inks, ultrafast lasers, pioneered the integration of inkjet
printed 2D materials with silicon platform for sensing and (opto)electronics,
and demonstrated the first industrial scale high speed printing of graphene ink
for large area touch surfaces.
He has published >100 peer reviewed
journal articles with > 15,000 citation and 42 H index and presented >40 keynote
and invited conference talks. Tawfique has co-founded two start-up companies,
one of which was recently acquired by Versarien plc.
The ability to formulate functional inks of
2D ctystals is of paramount importance for their ultimate commercial
exploitation. I will discuss key ink formulation strategies of 2D materials for
printed device applications. In the first part of my talk, I will highlight the
new insights that we have gained in droplet drying dynamics and inkjet printing
using solvent blends. One particular example application will focus on
connected sensors for environmental monitoring in UK at fraction of a cost of
traditional sensors [4]. I will also give a brief glimpse of our results on the
formulation of transparent dielectric inks based on a blend of h-BN and
polymers. In the latter half of my talk, I will discuss printing on to conformable
substrates [6] as well as production variabilities of scalable, large format
prints for inexpensive technologies.
