Международный
научно-образовательный
центр Физики Наноструктур

We invite you to the Seminar on Friday, May 19, at 11.00, room 301/5:

Graphene and 2D Materials for Electronics, Photonics and Optoelectronics

by Anna Baldycheva

Centre for Graphene Science & Nano Engineering Science and Technology Group, College of Engineering, Mathematics and Physical Sciences, University of Exeter, UK

Graphene is an emerging material for electronics, photonics and optoelectronics due to unique physical properties such as high electrical conductivity, optical transparency and mechanical flexibility. These properties can be further enhanced or tailored to fit specific device functionalities by means of chemical functionalization. A recent example of the potential of chemical functionalization is the intercalation of few-layer-graphene with FeCl₃ (dubbed GraphExeter), developed by Prof Craciun at the Centre for Graphene Science at Exeter. In the past years, our Graphene Centre demonstrated that this material is the best performing carbon-based transparent conductor, with resilience to extreme conditions and potential for transparent photo-detectors, flexible photovoltaic and organic light emitting devices and foldable light-emitting devices. Among emerging optoelectronic materials, fluid-dispersed atomically thin 2D nanocomposite materials demonstrate great promise for the next generation of multi-functional optoelectronic systems with a wide range of important applications, such as renewable energy, optical communications, bio-chemical sensing, and security and defence technologies. The most recent highlight in this new research is the first demonstration of 2D materials optofluidic systems - a novel device concept for graphene and 2D materials optoelectronics and integrated photonics developed at the Opto-Electronic Systems Laboratory at the Centre for Graphene Science. 

In this talk the latest developments of the Laboratory in the use of graphene and functionalized graphene for electronics, photonics and optoelectronics will be reviewed and recent studies on the use of high quality graphene for next generation light emitting devices and for flexible, wearable touch-sensors will be presented. The Laboratory's recent demonstration of 2D heterostructures for video-frame-rate imaging applications, intelligent design of 2D devices and GraphExeter photodetectors for high-definition sensing and video technologies will also be reviewed. Finally, the most recent results will be presented on dynamically controlled three-dimensional self-assembly of suspended 2D liquid exfoliated nano-flakes, which provides a breakthrough route for technological realization of 2D material based 3D device architectures.