Interplay of ferroelectric polarization and defect engineering in semiconductor heterostructures for photovoltaic synaptic functionality DOI

J. Zhi,

Jiarong Zhao,

Dingwen Cao

и другие.

Applied Physics Letters, Год журнала: 2025, Номер 126(17)

Опубликована: Апрель 28, 2025

Emerging optoelectronic synaptic devices based on two-dimensional (2D) materials are extremely attractive in the field of artificial intelligence. However, most reports, these either have single functions and high energy consumption. Based photoinduced ferroelectric polarization reversal (CuInP2S6) synergistic defect engineering (MoS2), we propose a 2D CuInP2S6–MoS2 two-terminal synapse device, which has simple structure wide spectral photovoltaic response ultralow power consumption, as low 0.03 fJ under electric pulse stimulation 0.5 light stimulation. Most importantly, complex bionic behaviors, including acquisition, extinction, recovery, generalization, were mimicked by electrical stimulation, respectively. Therefore, this efficient device can provide scientific perspective for future synapses

Язык: Английский

Interplay of ferroelectric polarization and defect engineering in semiconductor heterostructures for photovoltaic synaptic functionality DOI

J. Zhi,

Jiarong Zhao,

Dingwen Cao

и другие.

Applied Physics Letters, Год журнала: 2025, Номер 126(17)

Опубликована: Апрель 28, 2025

Emerging optoelectronic synaptic devices based on two-dimensional (2D) materials are extremely attractive in the field of artificial intelligence. However, most reports, these either have single functions and high energy consumption. Based photoinduced ferroelectric polarization reversal (CuInP2S6) synergistic defect engineering (MoS2), we propose a 2D CuInP2S6–MoS2 two-terminal synapse device, which has simple structure wide spectral photovoltaic response ultralow power consumption, as low 0.03 fJ under electric pulse stimulation 0.5 light stimulation. Most importantly, complex bionic behaviors, including acquisition, extinction, recovery, generalization, were mimicked by electrical stimulation, respectively. Therefore, this efficient device can provide scientific perspective for future synapses

Язык: Английский

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