Phys.org October 22, 2024 Memristors based on graphene is a promising alternative to contemporary field-effect transistor (FET) technology achieves higher integration density and lower power consumption. The use of graphene as electrodes in memristors could also increase robustness against degradation mechanisms. To realize this researchers in the UK have developed a process for direct growth of high-quality monolayer graphene on sapphire wafers in a mass-producible, contamination-free, and transfer-free manner using a commercially available metal–organic chemical vapor deposition (MOCVD) system. Using their process they developed graphene-electrode based memristors incorporating graphene electrodes at wafer scale. The memristor demonstrated promising characteristics in terms […]
Tag Archives: Memristor
Brain-inspired memory device
Science Daily September 2, 2021 Profuse dendritic-synaptic interconnections among neurons in the neocortex embed intricate logic structures enabling sophisticated decision-making and dynamically reconfigure providing flexibility and adaptability to changing environments. To advance the performance of logic circuits, an international team of researchers (Singapore, Ireland, USA – industry, university of Oklahoma, Texas A&M College Station) used voltage-driven conditional logic interconnectivity among five distinct molecular redox states of a metal–organic complex to embed a ‘thicket’ of decision trees having 71 nodes within a single memristor. The resultant current–voltage characteristic of this molecular memristor exhibited eight recurrent and history-dependent non-volatile switching transitions between […]
Making the internet of things possible with a new breed of ‘memristors’
Science Daily January 10, 2018 Researchers in Finland have fabricated a new kind of ferroelectric tunnel junctions using organic hydro-carbon materials. The junctions work in low voltages of less than five volts and with a variety of electrode materials including silicon. They can retain data for more than 10 years without power and be manufactured in normal conditions. They can be made from the water or oxygen in the air and would reduce the amount of toxic heavy metal waste in electronics. They are working to integrate millions of tunnel junction memristors into a network on a one square centimetre […]