【直播】【吉林大学-剑桥大学前沿学术讲坛】the amazing properties of graphene

直播信息

报告题目

Adventures in flatland – the amazing properties of graphene

报告人

Prof. Colm Durkan

报告时间

2022年3月17日 19:00

主办方

吉林大学-剑桥大学前沿学术讲坛

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宣传海报

报告人介绍

Prof. Colm Durkan is the founder and head of the Nanoengineering Science (formerly the Scanning Probe Microscopy and Nanoelectronics) group at the Nanoscience centre of the University of Cambridge. He is a fellow of Girton College, Cambridge.

Originally from Dublin, Colm obtained his primary degree in Physics from Trinity College Dublin. He was also a Trinity College Foundation scholar, and was the recipient of the Fitzgerald medal in 1992.

Colm obtained his PhD in Physics, also from Trinity College, on the topic of Scanning Near-field Optical Microscopy (SNOM), and built the first SNOM in the country. After spending a postdoctoral period at Konstanz University in Germany, during which time he was awarded an Alexandar von Humboldt visiting fellows scholarship for research into atom optics, he came to work in Cambridge in August 1997 as a postdoc.

Colm has been a University lecturer with full tenure since July 2000, a Reader in Nanoscale Engineering since October 2010 and a full professor since October 2020.  He is also Deputy head (teaching) of the Engineering Department.  He is on the editorial board of the Nature journal Scientific Reports.

As well as around 150 papers in peer-reviewed journals, Colm is in the process of putting the finishing touches on a textbook on analogue electronics for Cambridge University Press, and recently completed a book on Nanotechnology for the layperson, Size really does matter- the nanotechnology revolution. He has also written a textbook on nanoscale quantum electronics, Current at the Nanoscale, now in its second edition.  In an attempt to help beleaguered schoolchildren, Colm has written a short ebook on electrical circuits – Electricity without the tears. Colm's research is focused on understanding the fundamentals of the link between form (size & shape) and function in Nanomaterials, with an emphasis on advanced modes of microscopy and surface analysis, as applied to both highly-applied everyday problems as well as working on the underpinning science.  He also has a keen interest in the fabrication of novel devices and device architectures.

报告摘要

Graphene is being touted as the wonder material of the 21st century due to its impressive electrical and mechanical properties. Whether scaleable and economically viable devices that can outperform their conventional alternatives will emerge is still somewhat of an open question, but recent developments in wafer-scale production of graphene via CVD (Chemical Vapour Deposition) offer great promise. It has been suggested that graphene may replace Cu as the material of choice for interconnects in circuits as it has better electrical and thermal conductivity and it does not suffer from electromigration. Prof. Durkan will report on their recent experimental and modelling work showing how heat is dissipated in graphene wires, and on how the resistivity scales with size in the width range 15 nm-300 nm, showing clear differences between devices with and without passivation layers, which will have notable consequences for future devices. He will also show two new experimental techniques that the Durkan group has pioneered, for introducing a bandgap via surface patterning and mapping the effect of a local top gate.

主持人介绍

Prof. Liang Shen is the Vice Dean of Electronics Science and Engineering of Jilin University now. He mainly engaged in the research work of high sensitivity and fast response organic/perovskite photodetector, of which the ultra-fast response speed reaches the best index of similar detectors in this field. He has published 190 SCI retrieval papers, and 10 papers have been selected into ESI database with high citation, with more than 5500 SCI citations and an H-index of 42. He was elected as a Youth Editorial Board Member of SmartMat and InfoMat in 2021, for his contributions to electronic information materials, devices and systems.

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编辑：王茹茹

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