TITLE：Organic Nanowires and Nanotubes: New Opportunities in Nanoscale Electronics and Photonics
SPEAKER：Prof. Gareth Redmond, School of Chemistry and Chemical Biology, University College Dublin, Ireland
TIME：Thursday, November 20, 10:00-11:30
ROOM：beat365化学A楼5楼演讲厅
INVITER：朱新远教授

ABSTRACT:  One dimensional semiconductor nanostructures are an emerging class of materials that represent attractive building blocks for nanoscale electronic and photonic devices. However, while inorganic materials have been explored in depth, the challenge of fabricating organic nanowire- and nanotube-based devices has yet to be as comprehensively addressed. To this end, my group has developed methods both for high yield synthesis of semiconductor nanowires and nanotubes (image at left) based on conjugated polymer and small molecule organic materials and for assembly of these novel wires into integrated nanodevices. We have successfully demonstrated key nanophotonic properties at the single nanowire level that include polarized light emission, polarizing energy transfer, wave-guiding, optical microcavity effects, and optically pumped lasing. Further studies are presently underway in areas such as nanowire- and nanotube-enabled explosives detection, electrical conduction and photo-detection. These devices may find many opportunities in future applications such as nano-optical routing, wave-guiding, emission and detection, data storage, sensing and near-field optics. In this talk, details of results achieved within these themes will be presented.

Biography:  Gareth Redmond received his B.Sc. degree in Chemistry from University College Dublin in 1991 and was awarded his Ph.D. in Physical Chemistry in 1995. His research was concerned with understanding the electronic and optical properties of semiconductor nanocrystals as applied to DSSCs. In 1995, he was a postdoctoral fellow at the École Polytechnique Fédérale de Lausanne where he developed an early electrodeposition route to spin tunnel junctions in ferromagnetic nanowires. In 1996, he joined the University of Bath as a postdoctoral fellow working on the properties of nanocrystalline materials. In 1997, Gareth joined the Tyndall National Institute, UCC, as a research scientist and in 1999 was appointed Group Director, Nanotechnology. He also served as a member of the Tyndall executive management team for 5 years between 1999 and 2004. Since 2008, Gareth is a professor at the School of Physics and the School of Chemistry & Chemical Biology and leader of the Functional Nanomaterials Group at UCD. The activities of Gareth’s research group currently include microscopy and spectroscopy of nanostructures, application of molecular self-assembly to the fabrication of nanoscale information processing and biotechnology devices, and development of low cost nanostructure fabrication methods. He has published over 95 papers in peer-reviewed journals and is the author of several patents. He has participated in and co-ordinated research projects within the EU 4th, 5th, 6th and 7th Framework Programmes’ Esprit, MEL-ARI, IST, FET, Growth, Life, Improving, Marie Curie and NMP actions and also within Irish Government funded Enterprise Ireland programmes, Science Foundation Ireland programmes, and Higher Education Authority PRTLI Cycles 0, 1, 3, 4 and 5. At UCD, he is Head of the Physical Chemistry Section and Head of the School of Chemistry & Chemical Biology. He has acted as a consultant on future research directions in nanotechnology, in Ireland, as a member of the Department of Enterprise, Trade and Innovation / Forfás NanoIreland Task Force (2005-2008), and, at European level, to the European Commission. He is a past chairman of the Self-assembly Working Group of the EU IST Programme, Future and
Emerging Technologies Initiative “Working Group on Self-assembly”, 2000. He was a task force member, sectoral roadmap panel member & co-author of the Irish Council for Science, Technology and Innovation Nanotech Task Force and National Statement on Nanotechnology, 2004. He was a member of the European Science Foundation Standing Committee for Physical & Engineering Sciences EUROCORES Self-Organised Nano-Structures (SONS) programme review panel, 2002/2003 and 2005/2006. He has also undertaken EC, Royal Society, and Petroleum Research Fund research peer review and was external examiner for the M.Sc. course in Micro- and Nano-technology Enterprise, Department of Materials Science and Metallurgy, University of Cambridge, 2008-2010. He is co-founder of Biosensia Ltd., a privately held point-of-use diagnostics company with headquarters located in Dublin, Ireland.