Development of switching memory devices of cellulose fibers from lotus petioles

Natural cellulose fibers are polysaccharide-based biological materials derived from diverse sources such as bamboo stalks, lotus plants, and cotton fleece. Cellulose offers a multitude of advantageous characteristics, encompassing structural stability, substantial surface area, exceptional flexibility, and biodegradability. Furthermore, cellulose's structure, morphology, and properties will largely depend on the extraction process and subsequent processing stages. In this work, the shape and form of cellulose fibers extracted from lotus petioles were recorded under chemical treatment, including NaClO, H₂SO₄, and NaOH. After isolation, the crystallinity significantly increased from 44.7 to 71.78%, and the average fiber size reduced from 3.11 to 1.9 µm. This study uses cellulose fibers derived from lotus petioles as a dielectric medium in a planar configuration with silver electrodes in a resistive-switching memory device, namely the Ag/Cellulose/Ag/Si device. The bio-memristor exhibits hysteresis behavior and good durability qualities, indicating its potential for future advancements in electrical technology.