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Issue 44, 2017
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Multi-state memristive behavior in a light-emitting electrochemical cell

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Abstract

Carbohydrate-based block copolymers, such as maltoheptaose-block-polyisoprene (MHPI), were successfully employed as polyelectrolytes in a light-emitting electrochemical cell (LEC) to realize organic multi-state electrical memory. The observation of distinctive multi-state memristive behavior could be attributed to the controlled ion motion in MHPI and the electron capture capabilities introduced by its constituent hydroxyl groups. The newly developed sandwich-structured memory device is based on a LEC platform as the light-emitting electrochemical cell memory (LECM). Furthermore, the fabricated LECM exhibited excellent ternary-state memory behavior with high ON2/ON1/OFF current ratios of 106/105/1 as well as excellent stabilities for each respective state. The study not only illustrates the use of carbohydrate-based materials as promising electrolytes for LECM applications, but also provides a new horizon in the development of organic multi-state electrical memory devices.

Graphical abstract: Multi-state memristive behavior in a light-emitting electrochemical cell

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Publication details

The article was received on 28 Aug 2017, accepted on 25 Oct 2017 and first published on 25 Oct 2017


Article type: Communication
DOI: 10.1039/C7TC03920D
Citation: J. Mater. Chem. C, 2017,5, 11421-11428
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    Multi-state memristive behavior in a light-emitting electrochemical cell

    C. Shih, C. Huang, M. Gao, C. Chueh and W. Chen, J. Mater. Chem. C, 2017, 5, 11421
    DOI: 10.1039/C7TC03920D

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