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Author: search.filters.author.Chantarawong, D.Has files: No

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    Electrical Bistable Properties of P-25 TiO2 Nanoparticles Composited with PVP for Memory Devices
    (2019-10-01)
    Ukakimaparn, P.
    ;
    Chantarawong, D.
    ;
    Songkeaw, P.
    ;
    Onlaor, K.
    ;
    Thiwawong, T.
    In this work, P-25 titanium dioxide nanoparticles (TiO<inf>2</inf> NPs) were composited with poly-vinylpyrrolidone (PVP) at various concentrations of TiO<inf>2</inf> NPs. The bistable memory devices were fabricated by spin coating from a prepared PVP:TiO<inf>2</inf> NPs solution on indium tin oxide (ITO) electrodes with the device structure of ITO/PVP:TiO<inf>2</inf> NPs/Al. The maximum ON/OFF current ratio of the bistable memory devices was approximately 10<sup>5</sup> at a reading voltage of +1 V. The mechanism of the memory device can be expressed by theoretical fitting between the experimental results and conduction models. Moreover, a retention time test for continuous read operations of the device is presented.