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PGI Kolloquium:

Prof Dr. Kazuya Terabe,
National Institute for Materials Science (NIMS) Center for Materials, Tsukuba, Japan

PGI Lecture Hall, Building 04.8, 2nd Floor, Room 365

05.07.2019 11:00 Uhr

Solid-State-Ionic Nanoarchitectonics for the Development of Innovative Information Communication Devices

BildCopyright: Prof. Dr. Terabe

An enormous number of semiconductor devices have been used in information communications equipment. Recently, it is said that the progress of integrated circuits composed of them will slow down in the near future. Therefore, continued improvement of information communication equipment performance requires not only the further improvement of semiconductor devices, but also the creation of innovative devices that operate on new principles.

One such promising novel devices are nanoionics devices, which operate by controlling local ion migration and electrochemical reactions instead of by electron and hole migration. Up to now, we have successfully performed the fundamental research on various novel nanoionics devices, such as their basic characteristics and the method of constructing these devices based on solid-state-ionic nanoarchitectonics.

One attractive application for nanoionics devices is artificial intelligence technology. We have created a neuromorphic atomic switch with artificial synaptic function, and were able to mimic the properties of short term memory and long term memory. We have further created a decision-making ionics device that can learn, memorize and make judgments properly. The decision-making device operates utilizing electrochemical phenomena caused by migration of hydrogen ions in the solid electrolyte.

Creations of these neuromorphic atomic switchand decision-making ionics devices are expected to lead to the development of a new concept artificial intelligence systemoperating with analog information processing, which is different from the conventional system operating with digital information processing using electronics devices and software.


Stephan Menzel
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