Electron microscopy and spectroscopy on single molecules
Presented by Dr Kazu Suenaga, AIST
Monday 18 June 2007 at 2pm
University College London in the Harrie Massey Lecture Theatre
Department of Physics & Astronomy
followed by a reception with light refreshments
Abstract
Advances of nanotechnology increasingly rely on the progress of electron microscopies, which are capable of visualizing and analyzing constituent atoms in individual nano-objects. Electron spectroscopy based on a scanning transmission electron microscope equipped with an energy-loss spectrometer enables us to obtain the chemical composition of individual quantum objects with high sensitivity and high resolution, which are crucial to detect dopants or impurities in materials at this atomic level. Also a phase contrast of high resolution electron microscopy with high time-resolution and high sensitivity allows dynamic observation of individual atoms and visualization of point defects during formation and annihilation. This presentation highlights our recent achievements in characterization of individual nanostructures, involving individual molecular imaging, single atom spectroscopy, and point defect detection.
Profile
Kazu Suenaga obtained his Ph.D in Materials Science at the University of Tokyo in 1994. He was a postdoctoral fellow at Ecole Nationale Superieure des Mines de Paris (1994-1997) and at the Solid State Physics Laboratory in the University Paris-Sud (1997-1998). Then he joined the Japan Science and Technology Corporation (JST) as a researcher (1998-2001) and now is a team leader at National Institute for Advanced Industrial Science and Technology (AIST). He has published over 80 scientific papers and delivered more than 40 invited lectures over the past ten years. A recipient of the Honda Memorial Promotional prize (1997) and the Seto prize (Japanese society of Microscopy 2005), Grantee par Sumitomo Foundation (1997) and CREST-JST (2006). His major research theme involves the atomic level characterization of individual molecules by means of electron microscopy and spectroscopy.
Biography
- 1994 Ph. D, the University of Tokyo
- 1994-1997 Post-doc, École Nationale Supérieure des Mines, Paris
- 1997-1998 Post-doc, Lab. Physique des Solides, Université Paris-Sud
- 1998-2001 Researcher, JST-ICORP "Nanotubulites project"
- 2001-present Team leader, AIST Research Centre for Advanced Carbon Materials
- 2005-present Group leader, JST-ERATO "Nakamura carbon cluster project"
- 1995 Visiting Scientist, Technion, Israel
- 2003 Lectureship, Nagoya University
- 2004 Lectureship, Tohoku University
Dr Suenaga was awarded the Sir Martin Wood Prize at the Millennium Science Forum which took place at the International House in Tokyo in November 2006. The Millennium Science Forum was established in 1998 to promote scientific exchange between Britain and Japan and recognise the work of outstanding young Japanese researchers. The prize is named after Sir Martin Wood, Founder of Oxford Instruments.
