| Date |
Name of Institution |
| 1991, V |
University of
L'Aquilla, Italy |
| 1992, XI |
Royal Institute
of Technology, Sweden |
| 1993, III |
Royal Institute
of Technology, Sweden |
| 1994, IX |
Technical University
of Chemnitz, Germany |
| 1995, II |
University of
Freyburg, Germany |
| 1996, III |
Australian National
University, Australia |
| 2000, II |
Arizona State
University, USA |
| 2001, III |
Max Plank Institute
of Polymers, Germany |
| 2011-2015 |
Center for Nanotechnology, Muenster, Germany |
| 2017, XI |
ITRI, Taiwan |
|