Seminar & Colloquium
[세미나: 3월 20일(수), 오전 10시] Prof. Alberto Salleo, Stanford University
Title
Organic mixed conductors for iontronics
Speaker
Prof. Alberto Salleo, Stanford University
*Education
- 1994 Laurea, Chemistry, University of Rome La Sapienza
- Diplôme d’Auditeur Libre, Solid-State Physics, École Polytechnique (France)
- 1998 M.S., Materials Science, University of California, Berkeley
- 2001 Ph.D., Materials Science, University of California, Berkeley
- 2004 Postdoc, Electronic Materials Lab, PARC, Inc.
* Experience
- 2019 ~ present Chair, Materials Science and Engineering Department, Stanford University
- 2019 ~ present Professor of Materials Science, Stanford University
- 2013 ~ 2019 Associate Professor of Materials Science, Stanford University
- 2005 ~ 2012 Assistant Professor of Materials Science, Stanford University
- 2004 ~ 2005 Member of Research Staff, PARC Inc. (formerly Xerox PARC)
| Date | Wendsday March 20th , 2024
| Time | 10:00 ~
| Venue | 온라인 강의(https://snu-ac-kr.zoom.us/j/81904554472)
[Abstract]
The charge density in electrochemically active polymers can be modulated over a wide range by ion insertion. In inorganic materials this process is slow and energetically costly. Polymers on the other hand can insert ions with minimal strain. Furthermore, the soft nature of the material and its microstructure alllows fast ion modulation. As a result of this combination, polymer-based “iontronics”, ie devices relying on the modulation of electronic properties via electrolytes, may be able to reach frequencies well into MHz and possibly into the GHz regime. I will show examples of fast iontronic devcies, modulating electronic properties within ~10ns with accompanying structural characterization to explain their operation. I will then discuss other polymer-electrolyte systems to gain a broader understanding of how ion and electrolyte insertion affect the microstructure of organic mixed conductors.
Polymer-based iontronics could develop into a technology that takes advantage of the features of conjugated polymers (e.g. a relatively open structure) to enable unique functionalities such as deep optical modulation or brain-like computation.
| Host | 강기훈 교수(02-880-7189)