![]() ![]() In this study, we presented an impact-ionization-based threshold switching field-effect transistor (I 2S-FET) fabricated with a serial connection of a MoS 2 FET and WSe 2 impact ionization-based threshold switch (I 2S). However, most of them cannot retain steep switching at room temperature, and device performance degradation issues caused by impact ionization-induced hot carriers have not been structurally addressed. ![]() Recently, two-dimensional material-based impact ionization transistors with various structures have been reported with the advantages of a low critical electric field and a unique quantum confinement effect. A steep switching device with a low subthreshold swing (SS) that overcomes the fundamental Boltzmann limit ( kT/ q) is required to efficiently process a continuously increasing amount of data. ![]()
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