Bipolar resistive switching characteristics of amorphous SrTiO3 thin films prepared by the sol-gel process

Amorphous SrTiO3 thin films grown on fluorine-doped tin oxide (FTO) glass were fabricated via the sol-gel route and coating process. The composition and chemical state of the thin films were studied by X-ray photoelectron spectroscopy. A high switching ratio and good endurance were demonstrated in t...

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Main Authors: Hui Tang, Xin-Gui Tang, Yan-Ping Jiang, Qiu-Xiang Liu, Wen-Hua Li, Li Luo
Format: Article
Language:English
Published: Taylor & Francis Group 2019-07-01
Series:Journal of Asian Ceramic Societies
Subjects:
Online Access:http://dx.doi.org/10.1080/21870764.2019.1625499
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author Hui Tang
Xin-Gui Tang
Yan-Ping Jiang
Qiu-Xiang Liu
Wen-Hua Li
Li Luo
author_facet Hui Tang
Xin-Gui Tang
Yan-Ping Jiang
Qiu-Xiang Liu
Wen-Hua Li
Li Luo
author_sort Hui Tang
collection DOAJ
description Amorphous SrTiO3 thin films grown on fluorine-doped tin oxide (FTO) glass were fabricated via the sol-gel route and coating process. The composition and chemical state of the thin films were studied by X-ray photoelectron spectroscopy. A high switching ratio and good endurance were demonstrated in the Au/amorphous SrTiO3/FTO/glass memory cells, with an ability to achieve a ratio of high and low resistance (Roff/Ron) of 102. A stable switching voltage and uniform resistance states could be identified, moreover, using standard Weibull distribution. The results showed that Ohmic and space charge limited conduction mechanisms coexisted in the amorphous SrTiO3 thin films. Ohmic conduction dominated in the initial high- and low-resistance state, but the space charge limited conduction mechanism was dominant in the later high-resistance field. The resistance switching effect in the device was explained by the formation and rupture of oxygen vacancies interrelated with filaments. These amorphous SrTiO3 films have potential resistive memory applications.
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spelling doaj.art-df9da0aeaded49088c30db4f5a6f663f2022-12-21T19:44:56ZengTaylor & Francis GroupJournal of Asian Ceramic Societies2187-07642019-07-017329830510.1080/21870764.2019.16254991625499Bipolar resistive switching characteristics of amorphous SrTiO3 thin films prepared by the sol-gel processHui Tang0Xin-Gui Tang1Yan-Ping Jiang2Qiu-Xiang Liu3Wen-Hua Li4Li Luo5Guangdong University of TechnologyGuangdong University of TechnologyGuangdong University of TechnologyGuangdong University of TechnologyGuangdong University of TechnologyGuangdong University of TechnologyAmorphous SrTiO3 thin films grown on fluorine-doped tin oxide (FTO) glass were fabricated via the sol-gel route and coating process. The composition and chemical state of the thin films were studied by X-ray photoelectron spectroscopy. A high switching ratio and good endurance were demonstrated in the Au/amorphous SrTiO3/FTO/glass memory cells, with an ability to achieve a ratio of high and low resistance (Roff/Ron) of 102. A stable switching voltage and uniform resistance states could be identified, moreover, using standard Weibull distribution. The results showed that Ohmic and space charge limited conduction mechanisms coexisted in the amorphous SrTiO3 thin films. Ohmic conduction dominated in the initial high- and low-resistance state, but the space charge limited conduction mechanism was dominant in the later high-resistance field. The resistance switching effect in the device was explained by the formation and rupture of oxygen vacancies interrelated with filaments. These amorphous SrTiO3 films have potential resistive memory applications.http://dx.doi.org/10.1080/21870764.2019.1625499Memristive deviceamorphous SrTiO3conduction mechanism
spellingShingle Hui Tang
Xin-Gui Tang
Yan-Ping Jiang
Qiu-Xiang Liu
Wen-Hua Li
Li Luo
Bipolar resistive switching characteristics of amorphous SrTiO3 thin films prepared by the sol-gel process
Journal of Asian Ceramic Societies
Memristive device
amorphous SrTiO3
conduction mechanism
title Bipolar resistive switching characteristics of amorphous SrTiO3 thin films prepared by the sol-gel process
title_full Bipolar resistive switching characteristics of amorphous SrTiO3 thin films prepared by the sol-gel process
title_fullStr Bipolar resistive switching characteristics of amorphous SrTiO3 thin films prepared by the sol-gel process
title_full_unstemmed Bipolar resistive switching characteristics of amorphous SrTiO3 thin films prepared by the sol-gel process
title_short Bipolar resistive switching characteristics of amorphous SrTiO3 thin films prepared by the sol-gel process
title_sort bipolar resistive switching characteristics of amorphous srtio3 thin films prepared by the sol gel process
topic Memristive device
amorphous SrTiO3
conduction mechanism
url http://dx.doi.org/10.1080/21870764.2019.1625499
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