Influence of the silver oxidation on the resistive switching in Ag/AgOx/WO3-x/Pt heterostructures

Autor:	Wei Chen, Chun-Ying Dong, Wen Gang Wei, Jing Zhao, Jian Zhang, Xu Zhao
Rok vydání:	2015
Předmět:	Analytical chemistry chemistry.chemical_element Nanotechnology Heterojunction Condensed Matter Physics Electrochemistry Oxygen Redox Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Rectification Electrode Instrumentation Ohmic contact Silver oxide
Zdroj:	The European Physical Journal Applied Physics. 72:30101
ISSN:	1286-0050 1286-0042
DOI:	10.1051/epjap/2015150347
Popis:	Silver is usually considered as an inert material and is most commonly used as an electrode. In this work, however, we demonstrate that silver can be easily oxidized during preparation. The influence of the silver oxidation on the resistive switching (RS) effect of the Ag/AgO x /WO 3-x /Pt heterostructures was systematically investigated. The heterostructure in which the AgO x film was deposited under an oxygen pressure of 5 × 10 −4 Pa showed a linear current-voltage relationship (Ohmic contact). The heterostructures in which the AgO x films were deposited under oxygen pressures of 10 and 100 Pa showed a typical interface RS effect with rectification. In combination with the analysis of the dependence of high-resistance-state (HRS) on RESET current and RESET voltage under different compliance currents, we inferred that the electrochemical redox reaction of the silver oxide is responsible for the RS effect in Ag/AgO x /WO 3-x /Pt heterostructures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::acf3da0896b43592c030a1b491ffc72b https://doi.org/10.1051/epjap/2015150347 Zobrazit plný text záznamu