2023
DOI: 10.1002/adfm.202305589
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2D Semiconductor‐Based Optoelectronics for Artificial Vision

Na Li,
Songge Zhang,
Yalin Peng
et al.

Abstract: Artificial retina technologies aim to restore visual function by mimicking the natural processes of the eye. These biomimetic devices can convert light into electrical signals that the brain can interpret as visual information, bypassing damaged or non‐functional cells of the eye. To be effective, these devices should possess high sensitivity to light, high spatial resolution, biocompatibility, power efficiency, and so on. Recently, 2D semiconductor materials have appeared as a promising candidate for artifici… Show more

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Cited by 23 publications
(8 citation statements)
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“…Photoreceptors receive lights of different wavelengths and intensities and convert them into corresponding electrical signals. 40 Released via neurotransmitters, these signals are then transmitted to visual nerve cells. These neurotransmitters regulate the short-and long-term synaptic plasticity of visual nerve cells and control the perception, memory, and computation of neuromorphic visual tasks.…”
Section: ■ Results and Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Photoreceptors receive lights of different wavelengths and intensities and convert them into corresponding electrical signals. 40 Released via neurotransmitters, these signals are then transmitted to visual nerve cells. These neurotransmitters regulate the short-and long-term synaptic plasticity of visual nerve cells and control the perception, memory, and computation of neuromorphic visual tasks.…”
Section: ■ Results and Discussionmentioning
confidence: 99%
“…In the human visual system, light signals are transmitted by photoreceptor cells to the brain for more advanced recognition. Photoreceptors receive lights of different wavelengths and intensities and convert them into corresponding electrical signals . Released via neurotransmitters, these signals are then transmitted to visual nerve cells.…”
Section: Resultsmentioning
confidence: 99%
“…These systems offer promising solutions to the escalating need for novel computing primitives, which can integrate analog computing and perform data storage simultaneously at a single sensor level. Recent advancements in optoelectronic devices mimicking biological synapses have demonstrated significant progress, particularly based on 2D materials [935,936]. These devices respond to optical stimuli due to the unique properties of 2D materials, making them ideal candidates for NVS, which offer high resolution, low power consumption, flexibility, and bioinspired functionality [497,936,937].…”
Section: Integrated Neuromorphic Visual Systemsmentioning
confidence: 99%
“…Thus, it is urgent to find a new class of materials to overcome these technical problems. With the nature of ultrathin thickness, dangling-free bonds and tunable band structure, transition metal dichalcogenides (TMDCs) have shown excellent electrical properties, unique optoelectronic properties, and mechanical flexibility that could be transferred to arbitrary substrates, which are becoming one of the most promising materials to replace traditional silicon-based materials. Thereinto, molybdenum disulfide (MoS 2 ) with a typical layered structure is widely studied. According to current progress, MoS 2 possesses the thickness-dependent energy band to widen its absorption spectrum and the large surface-to-volume ratio to assist charge trapping, which lay a good foundation for the development of optoelectronic devices for sensors, displays, recognition, and other diversified applications. Furthermore, air-stabilized MoS 2 could overcome the phonon scattering through the interface engineering to obtain ultrahigh electrical properties at room temperature and achieve the large-size growth by the regulation of preparation process, which provide advantages for the development of large-scale miniaturized integrated circuits. , Markedly, MoS 2 -based flexible integrated logic circuits as the optimization of the growth process have been successfully studied, which obtained good device yield and excellent electrical performance with the mobility of 55 cm 2 V –1 s –1 , high on/off ratios of 10 10 , and current densities of 35 μA μm –1 …”
Section: Introductionmentioning
confidence: 99%