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Title: Room-temperature nonvolatile molecular memory based on partially unzipped nanotube
Authors: Peng, Zhisheng
Deng, Ya
Wei, Haonan
Peng, Kang
Liu, Hui
Jin, Jiyou
Wang, Zhongpu
Chu, Weiguo
Zhang, Jian
Li, Yong Jun
Liu, Zheng
Sun, Liangfeng
Keywords: Engineering::Materials
Issue Date: 2022
Source: Peng, Z., Deng, Y., Wei, H., Peng, K., Liu, H., Jin, J., Wang, Z., Chu, W., Zhang, J., Li, Y. J., Liu, Z. & Sun, L. (2022). Room-temperature nonvolatile molecular memory based on partially unzipped nanotube. Advanced Functional Materials, 32(11), 2107224-.
Journal: Advanced Functional Materials
Abstract: Nonvolatile memories have attracted a lot of interest because they retain the data when the power is interrupted. Smaller size and improved performance of nonvolatile memories are pursued both for basic research and applications. In this work, a molecular wire made of seamless junctions between semiconducting single-walled carbon nanotubes (SWNT) and partially unzipped segments of the SWNTs are reported. This novel nanostructure is demonstrated to be a nonvolatile memory, which works at room temperature under atmospheric conditions. The characteristics of the device are measured with a four-terminal configuration and a non-local voltage (Vnon-local) is used as the storage signal. An electrical hysteresis of Vnon-local is observed, wherein two states with different Vnon-local can be switched by the application of an electric field through an insulating gate device structure, exhibiting nonvolatile characteristics. Vnon-local can be modulated with external magnetic fields and the mechanism of the electrical hysteresis is attributed to the magnetic moments at the partially unzipped SWNT. The smaller size of SWNT and high working temperature may lead to the development of molecular nanomagnets as nonvolatile memory devices for practical applications.
ISSN: 1616-301X
DOI: 10.1002/adfm.202107224
Rights: © 2021 Wiley-VCH GmbH. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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