As a group belonging to Center for Semiconductor Technology in Korea Institute of Science and Technology (KIST), our research interest is to study and develop next-generation electronic materials, novel devices, algorithms, and systems with advanced functionalities toward post-Si era. Among candidate materials, we are especially interested in materials including chalcogen atoms (S, Se, Te), which are called as chalcogenide, because those materials have shown exotic electrical properties with high application potential. Some examples of such (electrically and optically) important chalcogenide materials/devices/applications are following.
Keywords: Ovonic threshold switch (OTS); artificial neuron & synapse; memristor; hopfield network; oscillator-based Ising machine; probabilistic computing; brain-inspired computing; topological insulator