Edible biomaterial based memristive devices for non-volatile memory design

With the development of technology, electronic waste has become an undesirable burden on our environment due to the extreme usage of perilous materials. Therefore, it is very beneficial to use biomaterials for the fabrication of electronic devices that are biocompatible, environmentally benign, non-toxic, etc. Resistive Random Access Memory(RRAM) is one of the most promising memristive devices due to its simple metal-insulator-metal (MIM) structure, having high speed, ultimate scalability, low power consumption, capability of numerous-bit switching, and CMOS compatibility. Edible biomaterials like egg albumen(sources of protein), eggshell (Calcium carbonate), inner peel of citrus fruits (source of pectin/polysaccharide), Potato (source of starch), crabs, prawns (source of chitosan), etc. are most promising components for the fabrication of Bio-ReRAM. This study foregrounds the extraction and fabrication of Ag/Egg albumen/ITO and Ag/Eggshell powder/ITO devices which work on the principle of resistive switching. Further, we have explored the structural and conduction mechanism differences/similarities between the above two systems. Characterizations like FESEM, FTIR, UV-visible spectroscopy, electrical I-V measurements, I-V log-log plot, and endurance (I_On/I_Off) behavior analysis have been done for both devices. This demonstrates that Egg albumen and Eggshell both are the most promisable, robust as well as eco-friendly candidates for the next-generation memory applications.