Electrical transportation mechanisms of molybdenum disulfide flakes-graphene quantum dots heterostructure embedded in polyvinylidene fluoride polymer

Ooi, Poh Choon and Mohammad Haniff, Muhammad Aniq Shazni and Mohd Razip Wee, M.F. and Goh, Boon Tong and Dee, Chang Fu and Mohamed, Mohd Ambri and Majlis, Burhanuddin Yeop (2019) Electrical transportation mechanisms of molybdenum disulfide flakes-graphene quantum dots heterostructure embedded in polyvinylidene fluoride polymer. Scientific Reports, 9 (1). p. 6761. ISSN 2045-2322, DOI https://doi.org/10.1038/s41598-019-43279-3.

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Official URL: https://doi.org/10.1038/s41598-019-43279-3

Abstract

In the interest of the trend towards miniaturization of electronic gadgets, this study demonstrates a high-density data storage device with a very simple three-stacking layer consisting of only one charge trapping layer. A simple solution-processed technique has been used to fabricate the tristable non-volatile memory. The three-stacking layer was constructed in between two metals to form a two-terminal metal-insulator-metal structure. The fabricated device showed a large multilevel memory hysteresis window with a measured ON/OFF current ratio of 10 7 that might be attributed to the high charge trapped in molybdenum disulphide (MoS 2 ) flakes-graphene quantum dots (GQDs) heterostructure. Transmission electron microscopy was performed to examine the orientation of MoS 2 -GQD and mixture dispersion preparation method. The obtained electrical data was used further to speculate the possible transport mechanisms through the fabricated device by a curve fitting technique. Also, endurance cycle and retention tests were performed at room temperature to investigate the stability of the device. © 2019, The Author(s).

Item Type: Article
Funders: Dana Impak Perdana Grant (DIP-2018-006), Research University Grant (GUP-2018-085 and GUP-2018-082), UMRG Programme - Frontier Science (RP038C-17AFR)
Uncontrolled Keywords: Data storage equipment; Nonvolatile storage; Transistor memory
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 14 Feb 2020 02:19
Last Modified: 14 Feb 2020 02:19
URI: http://eprints.um.edu.my/id/eprint/23788

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