Journal
NANO RESEARCH
Volume 15, Issue 9, Pages 8419-8427Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-022-4437-9
Keywords
titania nanosheets; memristor; low power; multi-level storage; information processing
Categories
Funding
- National key R&D plan nano frontier key special project [2021YFA1200502]
- Cultivation projects of national major RD project [92164109]
- National Natural Science Foundation of China [61674050, 61874158]
- Special project of strategic leading science and technology of Chinese Academy of Sciences [XDB44000000-7]
- Hebei Basic Research Special Key Project [F2021201045]
- Project of Distinguished Young of Hebei Province [A2018201231]
- Support Program for the Top Young Talents of Hebei Province [70280011807]
- Hundred Persons Plan of Hebei Province [E2018050004, E2018050003]
- Supporting Plan for 100 Excellent Innovative Talents in Colleges and Universities of Hebei Province [SLRC2019018]
- outstanding young scientific research and innovation team of Hebei University [605020521001]
- High-level Talent Research Startup Project of Hebei University [521000981426]
- Science and Technology Project of Hebei Education Department [QN2020178, QN2021026]
- Interdisciplinary Key Research Program of Natural Science of Hebei University [DXK202101]
- Project of Institute of Life Sciences and Green Development [521100311]
- Special support funds for national high level talents [041500120001]
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This study proposes a high-performance memristor device based on two-dimensional titania nanosheet material, which exhibits stable electrical characteristics, multi-level storage, and information encoding and decoding through different compliance currents.
A huge amount of data requires the non-volatile memory (NVM) technology to exhibit large-capacity storage and fast calculation speed. To further solve the bottleneck of storage capacity and speed, nano-memristors based on two-dimensional (2D) layered materials are expected to realize NVM. This study proposes the fabrication of an Ag/2D-TiOx/Pt high-performance memristor device based on the 2D titania nanosheet material. The device demonstrates stable electrical characteristics under the direct current (DC) mode, including bipolar resistive switching (RS) behavior, multi-level memristive modes, and retention property. Also, it exhibits low switching voltage (0.42 V/-0.2 V), high R-OFF/R-ON resistance ratio (10(5)), low switching power (10(-9)W/10(-5)W), and fast response speed. More importantly, the device realizes information encoding and decoding through a multi-level storage performed by different compliance currents. Multiple devices are connected to the actual circuit to realize a storage function with information processing and programmable characteristics. This work provides a powerful platform for the 2D titania nanosheet application in NVM and information processing.
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