Humidity-dependent synaptic characteristics in gelatin-based organic transistors

Chen, Jian-Ru; Lu, Zhen-Ni; Zhu, Chenhui; Cai, Jiawei; Zhang, Zhong-Da; Zhong, Ya‐Nan; Xu, Jianlong; Gao, Xu; Wang, Sui‐Dong

doi:10.1016/j.mee.2023.112028

Cited by 3 publications

(1 citation statement)

References 36 publications

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“…For electronic artificial synapses, while some devices showed impaired synaptic behavior due to reduced conductivity in humid air, 21 those employing ion-conductive materials such as gelatin–hydrogel showed enhanced ion transport and thus improved EPSC. 22,23 For optoelectronic synapses, humidity-dependent synaptic behaviors have been much less explored. Layered double hydroxides (LDHs) are a class of layered materials composed of positively charged hydroxide slabs and interlayer anions.…”

Section: Introductionmentioning

confidence: 99%

Heterointerface engineering of layered double hydroxide/MAPbBr₃ heterostructures enabling tunable synapse behaviors in a two-terminal optoelectronic device

Chen,

Cao,

Yang

et al. 2024

Nanoscale Horiz.

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Section: Introductionmentioning

confidence: 99%

Heterointerface engineering of layered double hydroxide/MAPbBr₃ heterostructures enabling tunable synapse behaviors in a two-terminal optoelectronic device

Chen,

Cao,

Yang

et al. 2024

Nanoscale Horiz.

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Intelligent Tribotronic Transistors Toward Tactile Near‐Sensor Computing

Lei,

Yin,

Huang

et al. 2024

Adv Funct Materials

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For the next generation of human‐machine interaction (HMI) systems, the development of a tactile interaction unit with multimodal, high sensitivity, and real‐time perception and recognition is the key. Herein, an artificial tactile near‐sensor computing (ATNSC) unit based on a triboelectric tactile sensor and an organic synaptic transistor is reported. By introducing multi‐peak microstructures, the mechanical performance of the tactile sensor is optimized, showing a high sensitivity of 0.98 V kPa−1 in the pressure range of 0–10 kPa and maintaining 0.11 V kPa−1 at high pressures up to 350 kPa. Additionally, by designing stripe‐like convex structures on the top surface, the sensor is capable of bimodal perception in both pressure and sliding sensations. Furthermore, the organic synaptic transistor, which can be driven by tactile sensing stimuli in a variety of circumstances, is achieved utilizing an ion‐rich gelatin dielectric covered by a hydrophobic polymer coating layer. The ATNSC unit well demonstrates the stimuli‐dependent short‐term memory effect, and it enables tactile near‐sensor computing for feature action recognition in an HMI system, laying a solid foundation for the construction of intelligent interaction devices.

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Centimeter‐Scale Assembly of Fractal Organic Crystals with Crisscross Structures for Flexible Photosynapses

Liu,

Dong,

et al. 2024

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Fractal assembly technology enables scalable construction of organic crystal patterns for emerging nanoelectronics and optoelectronics. Here, a polymer‐templating assembly strategy is presented for centimeter‐scale patterned growth of fractal organic crystals (FOCs). These structures are formed by drop‐coating perylene solution directly onto a gelatin‐modified surface, resulting in the formation of crisscross fractal patterns. By adjusting the tilt angle of the template, the morphology of FOCs can be effectively controlled, with the diameter distribution of each level branch ranging from hundreds to ten micrometers. The planar FOC device exhibits flexible photoreception and photosynaptic capabilities, with a high specific detectivity of 1.35 × 109 Jones and paired‐pulse facilitation (PPF) index of 104%, withstanding a 0.5 cm bending radius during bending test. These findings present a reliable route for large‐scale assembly of flexible organic crystalline materials toward neuromorphic electronics.

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Humidity-dependent synaptic characteristics in gelatin-based organic transistors

Cited by 3 publications

References 36 publications

Heterointerface engineering of layered double hydroxide/MAPbBr₃ heterostructures enabling tunable synapse behaviors in a two-terminal optoelectronic device

Heterointerface engineering of layered double hydroxide/MAPbBr₃ heterostructures enabling tunable synapse behaviors in a two-terminal optoelectronic device

Intelligent Tribotronic Transistors Toward Tactile Near‐Sensor Computing

Centimeter‐Scale Assembly of Fractal Organic Crystals with Crisscross Structures for Flexible Photosynapses

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Humidity-dependent synaptic characteristics in gelatin-based organic transistors

Cited by 3 publications

References 36 publications

Heterointerface engineering of layered double hydroxide/MAPbBr3 heterostructures enabling tunable synapse behaviors in a two-terminal optoelectronic device

Heterointerface engineering of layered double hydroxide/MAPbBr3 heterostructures enabling tunable synapse behaviors in a two-terminal optoelectronic device

Intelligent Tribotronic Transistors Toward Tactile Near‐Sensor Computing

Centimeter‐Scale Assembly of Fractal Organic Crystals with Crisscross Structures for Flexible Photosynapses

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Heterointerface engineering of layered double hydroxide/MAPbBr₃ heterostructures enabling tunable synapse behaviors in a two-terminal optoelectronic device

Heterointerface engineering of layered double hydroxide/MAPbBr₃ heterostructures enabling tunable synapse behaviors in a two-terminal optoelectronic device