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Low Power Volatile and Nonvolatile Memristive Devices from 1D MoO2-MoS2 Core-Shell Heterostructures for Future Bio-Inspired Computing.
Yadav, Renu; Poudyal, Saroj; Rajarapu, Ramesh; Biswal, Bubunu; Barman, Prahalad Kanti; Kasiviswanathan, S; Novoselov, Kostya S; Misra, Abhishek.
Afiliación
  • Yadav R; Department of Physics, Indian Institute of Technology Madras, Chennai, 600036, India.
  • Poudyal S; Centre for 2D Materials Research and Innovation, Indian Institute of Technology Madras, Chennai, 600036, India.
  • Rajarapu R; Department of Physics, Indian Institute of Technology Madras, Chennai, 600036, India.
  • Biswal B; Centre for 2D Materials Research and Innovation, Indian Institute of Technology Madras, Chennai, 600036, India.
  • Barman PK; Department of Physics, Indian Institute of Technology Madras, Chennai, 600036, India.
  • Kasiviswanathan S; Centre for 2D Materials Research and Innovation, Indian Institute of Technology Madras, Chennai, 600036, India.
  • Novoselov KS; Department of Physics, Indian Institute of Technology Madras, Chennai, 600036, India.
  • Misra A; Centre for 2D Materials Research and Innovation, Indian Institute of Technology Madras, Chennai, 600036, India.
Small ; 20(18): e2309163, 2024 May.
Article en En | MEDLINE | ID: mdl-38150637
ABSTRACT
Memristors-based integrated circuits for emerging bio-inspired computing paradigms require an integrated approach utilizing both volatile and nonvolatile memristive devices. Here, an innovative architecture comprising of 1D CVD-grown core-shell heterostructures (CSHSs) of MoO2-MoS2 is employed as memristors manifesting both volatile switching (with high selectivity of 107 and steep slope of 0.6 mV decade-1) and nonvolatile switching phenomena (with Ion/Ioff ≈103 and switching speed of 60 ns). In these CSHSs, the metallic core MoO2 with high current carrying capacity provides a conformal and immaculate interface with semiconducting MoS2 shells and therefore it acts as a bottom electrode for the memristors. The power consumption in volatile devices is as low as 50 pW per set transition and 0.1 fW in standby mode. Voltage-driven current spikes are observed for volatile devices while with nonvolatile memristors, key features of a biological synapse such as short/long-term plasticity and paired pulse facilitation are emulated suggesting their potential for the development of neuromorphic circuits. These CSHSs offer an unprecedented solution for the interfacial issues between metallic electrodes and the layered materials-based switching element with the prospects of developing smaller footprint memristive devices for future integrated circuits.
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Texto completo: 1 Bases de datos: MEDLINE Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article País de afiliación: India

Texto completo: 1 Bases de datos: MEDLINE Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article País de afiliación: India