期刊
NANOSCALE RESEARCH LETTERS
卷 8, 期 -, 页码 1-7出版社
SPRINGEROPEN
DOI: 10.1186/1556-276X-8-92
关键词
Flexible memory; Atomic layer deposition; Low temperature
资金
- NSFC [61076114, 61106108]
- Shanghai Educational Development Foundation [10CG04]
- SRFDP [20100071120027]
- Fundamental Research Funds for the Central Universities
- S&T Committee of Shanghai [10520704200]
We demonstrated a flexible resistive random access memory device through a low-temperature atomic layer deposition process. The device is composed of an HfO2/Al2O3-based functional stack on an indium tin oxide-coated polyethylene terephthalate substrate. After the initial reset operation, the device exhibits a typical bipolar, reliable, and reproducible resistive switching behavior. After a 10(4)-s retention time, the memory window of the device is still in accordance with excellent thermal stability, and a 10-year usage is still possible with the resistance ratio larger than 10 at room temperature and at 85A degrees C. In addition, the operation speed of the device was estimated to be 500 ns for the reset operation and 800 ns for the set operation, which is fast enough for the usage of the memories in flexible circuits. Considering the excellent performance of the device fabricated by low-temperature atomic layer deposition, the process may promote the potential applications of oxide-based resistive random access memory in flexible integrated circuits.
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