期刊
ACS APPLIED ELECTRONIC MATERIALS
卷 4, 期 6, 页码 2964-2969出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaelm.2c00409
关键词
nonvolatile memory (NVM); van der Waals heterostructure; multilevel; optoelectronic; rhenium disulfide; top floating gate
资金
- Major Nanoprojects of the Ministry of Science and Technology of China [2018YFA0208403, 2017YFA0207104]
- National Natural Science Foundation of China [21973021, 11874129]
- GBA National Institute for Nanotechnology Innovation, Guangdong, China [2020B0101020003]
- CAS Project for Young Scientists in Basic Research [YSBR-030]
- Strategic Priority Research Program of Chinese Academy of Sciences [XDB36000000, XXH13505-03-212]
A multilevel optoelectronic NVM based on multilayer disulfide is designed and investigated, showing extraordinary storage capability and stable erasing property under laser illumination.
Nonvolatile memories (NVMs) based on van der Waals heterostructure have long attracted attention due to their atomic thinness, low energy consumption, and high performance, making them quite promising devices for next-generation memory. Here, a multilevel optoelectronic NVM based on multilayer disulfide (ReS2) with a top floating gate structure is designed and investigated. This device exhibits extraordinary storage capability with a large storage window ratio (_63%), high on/off ratio (_106), long data retention (>104 s), and excellent cyclic endurance (>1000 W/E cycles). In addition, the device shows a stable optical erasing property under laser illumination, where 13 and 7 discrete currents are clearly observed by applying multiple laser pulses and various laser powers, respectively.
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