Recent progress on two-dimensional neuromorphic devices and artificial neural network

Tian, Changfa; Wei, Liubo; Li, Yanran; Jiang, Jie

doi:10.1016/j.cap.2021.08.014

Cited by 29 publications

(18 citation statements)

References 143 publications

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“…Depending on the material’s underlying characteristics, this raises the possibility for spatially selective and tunable magnetism, long-lived interlayer excitons, ferroelectricity, and integrated quantum photonics . Finally, if the transport properties are modulated across large ranges comparable to the PL observed herein, laser-written p–n junctions, neuromorphic computing schemes, , and multistate optoelectronic devices could also be possible.…”

Section: Discussionmentioning

confidence: 90%

Room-Temperature Oxygen Transport in Nanothin Bi_xO_ySe_z Enables Precision Modulation of 2D Materials

et al. 2022

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Oxygen conductors and transporters are important to several consequential renewable energy technologies, including fuel cells and syngas production. Separately, monolayer transition-metal dichalcogenides (TMDs) have demonstrated significant promise for a range of applications, including quantum computing, advanced sensors, valleytronics, and next-generation optoelectronics. Here, we synthesize a few-nanometer-thick Bi x O y Se z compound that strongly resembles a rare R m bismuth oxide (Bi2O3) phase and combine it with monolayer TMDs, which are highly sensitive to their environment. We use the resulting 2D heterostructure to study oxygen transport through Bi x O y Se z into the interlayer region, whereby the 2D material properties are modulated, finding extraordinarily fast diffusion near room temperature under laser exposure. The oxygen diffusion enables reversible and precise modification of the 2D material properties by controllably intercalating and deintercalating oxygen. Changes are spatially confined, enabling sub-micrometer features (e.g., pixels), and are long-term stable for more than 221 days. Our work suggests few-nanometer-thick Bi x O y Se z is a promising unexplored room-temperature oxygen transporter. Additionally, our findings suggest that the mechanism can be applied to other 2D materials as a generalized method to manipulate their properties with high precision and sub-micrometer spatial resolution.

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Section: Discussionmentioning

confidence: 90%

Room-Temperature Oxygen Transport in Nanothin Bi_xO_ySe_z Enables Precision Modulation of 2D Materials

et al. 2022

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“…chemical vapor deposition, CVD), and most of the 2D materials in these devices are mechanically exfoliated with random thickness and shape distribution, which will inevitably cause large device-to-device variations. Therefore, most of the synaptic devices based on 2D materials are not suitable for large-scale device arrays for hardware artificial neural networks [ 236 ]. Furthermore, organic-inorganic hybrid semiconductors such as organolead halide perovskites have been widely used as light absorption channels for neuromorphic heterojunction transistors, leading to weaker stability and environmental issues [ 35 , 237 , 238 ].…”

Section: Problems Challenges and Prospects For Future Developmentmentioning

confidence: 99%

Emerging photoelectric devices for neuromorphic vision applications: principles, developments, and outlooks

Zhang

Huang

Jiang

2023

Science and Technology of Advanced Materials

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The traditional von Neumann architecture is gradually failing to meet the urgent need for highly parallel computing, high-efficiency, and ultra-low power consumption for the current explosion of data. Brain-inspired neuromorphic computing can break the inherent limitations of traditional computers. Neuromorphic devices are the key hardware units of neuromorphic chips to implement the intelligent computing. In recent years, the development of optogenetics and photosensitive materials has provided new avenues for the research of neuromorphic devices. The emerging optoelectronic neuromorphic devices have received a lot of attentions because they have shown great potential in the field of visual bionics. In this paper, we summarize the latest visual bionic applications of optoelectronic synaptic memristors and transistors based on different photosensitive materials. The basic principle of bio-vision formation is first introduced. Then the device structures and operating mechanisms of optoelectronic memristors and transistors are discussed. Most importantly, the recent progresses of optoelectronic synaptic devices based on various photosensitive materials in the fields of visual perception are described. Finally, the problems and challenges of optoelectronic neuromorphic devices are summarized, and the future development of visual bionics is also proposed.

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“…However, as the traditional FETs shrink in size, the short-channel effect becomes more pronounced, where the gate electric field cannot perform the full effect, resulting in leakage currents that affect the performance of the FET. To address these issues, FETs based on 2D materials have been extensively studied because of their ability to reduce the short-channel effects due to the atomic thickness [66,[102][103][104]. In addition, the coupling between the triboelectric potential and electrical behavior in semiconductor materials enables the unprecedented device properties [105][106][107].…”

Section: Logic Devices Based On 2d Tribotronic Transistorsmentioning

confidence: 99%

2D tribotronic transistors

Huo

et al. 2022

J. Phys. Energy

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Since the discovery of graphene, 2D materials have been widely applied to field-effect transistors (FETs) due to their great potential in optoelectronics, photodetectors, intelligent sensors, and neuromorphic devices. By integrating 2D transistor with triboelectric nanogenerator (TENG) into tribotronic transistor, the induced triboelectric potential can readily regulate the charge carrier transport characteristics in semiconductor channel. The emerging research field of tribotronics (mainly tribotronic transistors) has gained extensive attentions due to their significant applications on various sensation and human-machine interaction. Here, this review summarizes the recent development of 2D tribotronic transistors. Firstly, the electrical, optoelectronic, and piezoelectric properties of typical 2D materials are introduced. Then, the tribotronic tuning at the micro/nano-scale is raised with the methodologies of thermionic emission, triboelectricity tunneling, and atomic force microscope (AFM) probe scanning, which is of great significance to investigate the underlying mechanism of tribotronic effect. In addition, the macro-scale tribotronic regulation via TENG mechanical displacement are also discussed in detail to explore the applications of 2D tribotronic transistors in intelligent sensors, logic devices, memory devices, and artificial synapses. Finally, the challenges and perspectives for 2D tribotronic transistor are discussed.

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Recent progress on two-dimensional neuromorphic devices and artificial neural network

Cited by 29 publications

References 143 publications

Room-Temperature Oxygen Transport in Nanothin Bi_xO_ySe_z Enables Precision Modulation of 2D Materials

Room-Temperature Oxygen Transport in Nanothin Bi_xO_ySe_z Enables Precision Modulation of 2D Materials

Emerging photoelectric devices for neuromorphic vision applications: principles, developments, and outlooks

2D tribotronic transistors

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Recent progress on two-dimensional neuromorphic devices and artificial neural network

Cited by 29 publications

References 143 publications

Room-Temperature Oxygen Transport in Nanothin BixOySez Enables Precision Modulation of 2D Materials

Room-Temperature Oxygen Transport in Nanothin BixOySez Enables Precision Modulation of 2D Materials

Emerging photoelectric devices for neuromorphic vision applications: principles, developments, and outlooks

2D tribotronic transistors

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Room-Temperature Oxygen Transport in Nanothin Bi_xO_ySe_z Enables Precision Modulation of 2D Materials

Room-Temperature Oxygen Transport in Nanothin Bi_xO_ySe_z Enables Precision Modulation of 2D Materials