3-7 July 2023
University of Zululand
Africa/Johannesburg timezone
The Proceedings of SAIP2023 Published: 20 December 2023

RESISTIVE SWITCHING IN AG/CS+PVP+CDTE/CDSE/ITO-PET DEVICE FOR APPLICATION IN ECO-FRIENDLY MEMORY DEVICE

6 Jul 2023, 15:40
2h
University of Zululand

University of Zululand

Poster Presentation Track F - Applied Physics Poster Session 2

Speaker

Ms Khanya Giba (School of Computing, University of South Africa)

Description

Electronic devices that are made primarily of organic materials are significant for reducing electronic waste. The resistive switching properties of a chitosan/polyvinylpyrrolidone (PVP) polymer blend dispersed with CdTe/CdSe core-shell quantum dots are investigated. Both chitosan and polyvinylpyrrolidone (PVP) are non-hazardous to the environment. This composite was employed in the active layer of a resistive switching memory (ReRAM), which employs silver and indium doped tin oxide electrodes. The device's electrical characterisation indicated that it had asymmetric "S-type" memory behavior with a $I_{ON}/I_{OFF}$ ratio of $\geq 10$ and a very low (0.2 V) working voltage, making it suitable for low power consumption device applications. Furthermore, the presence of CdTe/CdSe in the composite was thought to enhance the Schottky barrier height of the interface between the electrodes and the active layer, resulting in the creation of conductive filaments due to silver electrode diffusion into the active layer. Overall, our findings suggest that by including CdTe/CdSe QDs, the memory and switching behavior of the chitosan/PVP blend-based resistive switching memory may be utilized.

Level for award;(Hons, MSc, PhD, N/A)?

MSc

Apply to be considered for a student ; award (Yes / No)? YES

Primary authors

Ms Khanya Giba (School of Computing, University of South Africa) Dr Zolile Wiseman Dlamini (Department of Maths, Science and Technology, Central University of Technology) Dr Sreedevi Vallabhapurapu (School of Computing, University of South Africa) Prof. Vijaya Srinivasu Vallabhapurapu (Physics Department, University of South Africa) Dr Olamide Abiodan Daramola (Department of Chemical and Physical Science, Walter Sisulu University)

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