Conduction Mechanism Analysis of Abrupt- and Gradual-Switching InGaZnO Memristors

Autor: Woo Sik Choi, Min Suk Song, Hyungjin Kim, Dae Hwan Kim
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Micromachines, Vol 13, Iss 11, p 1870 (2022)
Druh dokumentu: article
ISSN: 2072-666X
DOI: 10.3390/mi13111870
Popis: In this work, two types of InGaZnO (IGZO) memristors were fabricated to confirm the conduction mechanism and degradation characteristics of memristors with different electrode materials. The IGZO memristor exhibits abrupt switching characteristics with the Pd electrode owing to the formation and destruction of conductive filaments but shows gradual switching characteristics with the p-type Si electrode according to the amount of generated oxygen vacancy. The electrical characteristics and conduction mechanisms of the device are analyzed using an energy band diagram and experimentally verified with random telegraph noise characteristics confirming the trap effects on the device conduction.
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