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Photo-Induced Multiple-State Memory Behaviour in Non-Volatile Bipolar Resistive-Switching Devices
Xuejiao Zhang1, Zhiwei Xu2, Bai Sun3
1School of Information Science and Engineering, Hebei North University, Zhangjiakou 075000, China.
Journal of Nanoscience and Nanotechnology
|February 15, 2018
Summary
Researchers developed a novel photo-controlled non-volatile memory device using calcium tungstate nanoparticles. This breakthrough offers multi-state memory capabilities at room temperature, advancing electronic device technology.
Area of Science:
- Materials Science
- Nanotechnology
- Solid-State Electronics
Background:
- Non-volatile resistive-switching memory is crucial for modern semiconductor and electronic device technology.
- Developing materials with advanced memory functionalities is an ongoing area of research.
- Photo-responsive materials offer potential for novel device applications.
Purpose of the Study:
- To synthesize calcium tungstate (CaWO4) nanoparticles for memory applications.
- To fabricate and characterize a resistive-switching memory device incorporating these nanoparticles.
- To investigate the photo-induced multi-state memory behavior of the fabricated device.
Main Methods:
- One-step hydrothermal synthesis of CaWO4 nanoparticles.
- Fabrication of a Silver/CaWO4/fluorine-doped tin oxide (Ag/CaWO4/FTO) device structure.
- Room temperature characterization of the device's resistive-switching and photo-induced memory properties.
Main Results:
- Successfully synthesized CaWO4 nanoparticles via a hydrothermal method.
- Demonstrated a functional resistive-switching memory device with an Ag/CaWO4/FTO structure.
- Observed photo-induced multiple-state memory behavior in the device at room temperature.
Conclusions:
- CaWO4 nanoparticles are suitable for fabricating resistive-switching memory devices.
- The developed device exhibits promising photo-controlled multi-state non-volatile memory characteristics.
- This research contributes to the exploration of multi-functional materials for advanced memory applications.
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