Resistive switching behaviour in a polymannose film for multistate non-volatile memory application

• Published in: Journal of materials chemistry. C, Materials for optical and electronic devices Vol. 9; no. 4; pp. 1437 - 145
• Main Authors: Tayeb, Ilias A, Zhao, Feng, Abdullah, Jafri M, Cheong, Kuan Y
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 04.02.2021
• Subjects: Biodegradability; Electric potential; Electronic waste; Environmental impact; Ethanol; Mannose; Materials selection; Organic materials; Random access memory; Substrates; Switching; Voltage
• ISSN: 2050-7526; 2050-7534
• DOI: 10.1039/d0tc04655h

With the shift towards reducing electronic waste, bio-organic materials are considered as prominent alternatives due to their biodegradability and benign environmental impacts. Herein, polymannose is used to demonstrate resistive-switching characteristics with twelve distinctive and reliable memory states that were modulated by the compliance current at a READ voltage as low as −0.05 V. d -Mannose powder and ethanol were mixed to produce the precursor for the formation of a polymannose film via drop casting on an ITO/PET substrate and dried at 160 °C for different durations before an array of Ag was deposited as the top electrode. The optimal drying time of 7 h provided competitive resistive switching characteristics, with a READ window of 2.2 V, high ON/OFF ratio of >10 5 at a relatively low READ voltage of 0.01 V, acceptable endurance cycles of approximately 10 2 , and retention time of >10 4 s. These results demonstrate the potential of polymannose as a candidate material for environmentally friendly resistive-switching random access memory. With the shift towards reducing electronic waste, bio-organic materials are considered as prominent alternatives to produce resistive switching memory due to their biodegradability and benign environmental impacts.