Light-controlled resistive switching and voltage-controlled photoresponse characteristics in the Pt/CeO2/Nb:SrTiO3 heterostructure
- 1. School of Physics and Technology, The Key Laboratory of Artificial Micro/Nano Structures of Ministry of Education, Wuhan University, Wuhan, 430072, PR (China)
- 2. School of Science, Hubei University of Technology, Wuhan, 430068, PR (China)
- 3. School of Information Engineering, Hubei University for Nationalities, Enshi, 445000, Hubei, PR (China)
Description
The Pt/CeO2/Nb:SrTiO3 heterostructure that exhibits excellent resistive switching (RS) behavior of a maximum RS ratio of 3 × 104, good retention and multilevel memory is prepared. Obvious photoresponse was observed in this device under the illumination of a laser beam of 405 nm wavelength, which exhibits significant switching characteristics at high resistance state. Both light-controlled RS and voltage-controlled photoresponse are demonstrated in this device. Such RS and photoresponse characteristics can be attributed to the Schottky barrier of Pt/CeO2 interface and the electrons trapping/detrapping by oxygen vacancies near the interface. Our work demonstrated feasibility for making multilevel RS memories and for use in multifunctional photoelectric sensors.
Additional details
Identifiers
- DOI
- 10.1016/j.jallcom.2018.11.161;
- PII
- S0925838818342841;
Publishing Information
- Journal Title
- Journal of Alloys and Compounds
- Journal Volume
- 778
- Journal Page Range
- p. 141-147
- ISSN
- 0925-8388
- CODEN
- JALCEU
INIS
- Country of Publication
- Switzerland
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 55049697
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CERIUM OXIDES; ELECTRIC POTENTIAL; ELECTRONS; LASERS; OXYGEN; SENSORS; STRONTIUM TITANATES; VACANCIES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CERIUM COMPOUNDS; CHALCOGENIDES; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; LEPTONS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; POINT DEFECTS; RARE EARTH COMPOUNDS; STRONTIUM COMPOUNDS; TITANATES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2018 Elsevier B.V. All rights reserved.