Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
In-Sensor Organic Electrochemical Transistor for the Multimode Neuromorphic Olfactory System
ACS Sensors ( IF 8.2 ) Pub Date : 2024-08-04 , DOI: 10.1021/acssensors.4c01423 Yifeng Yin 1 , Tongrui Sun 1 , Lu Wang 1 , Li Li 1 , Pu Guo 1 , Xu Liu 1 , Lize Xiong 2 , Guoqing Zu 1 , Jia Huang 1, 2
ACS Sensors ( IF 8.2 ) Pub Date : 2024-08-04 , DOI: 10.1021/acssensors.4c01423 Yifeng Yin 1 , Tongrui Sun 1 , Lu Wang 1 , Li Li 1 , Pu Guo 1 , Xu Liu 1 , Lize Xiong 2 , Guoqing Zu 1 , Jia Huang 1, 2
Affiliation
|
The olfactory system is one of the six basic sensory nervous systems. Developing artificial olfactory systems is challenging due to the complexity of chemical information decoding and memory. Conventional chemical sensors can convert chemical signals into electric signals to decode gas information but they lack memory functions. Additional storage and processing units would significantly increase the complexity and power consumption of the devices, especially for portable and wearable devices. Here, an olfactory-inspired in-sensor organic electrochemical transistor (OI-OECT) is proposed, with the integrated functions of chemical information decoding, tunable memory level, and selectivity of vapor sensing. The ion-gel electrolyte endows the OI-OECT with the function of tunable memory levels and a low operating voltage. Typical synaptic behaviors, including inhibitory postsynaptic current and paired-pulse facilitations, are successfully achieved. Importantly, the gas memory level can be effectively modulated by the gate voltages (0 and −1 V), which realized the transformation of volatile and nonvolatile memory. Furthermore, benefiting from the recognition of multiple gases and ability to detect cumulative damage caused by gases, the OI-OECT is demonstrated for early warning system targeting leakage detection of two gases (NH3 and H2S). This work achieves the integrated functions of chemical gas information decode, tunable gas memory level, and selectivity of gas in a single device, which provides a promising pathway for the development of future artificial olfactory systems.
中文翻译：
用于多模式神经形态嗅觉系统的传感器内有机电化学晶体管
嗅觉系统是六种基本感觉神经系统之一。由于化学信息解码和记忆的复杂性，开发人工嗅觉系统具有挑战性。传统的化学传感器可以将化学信号转换为电信号来解码气体信息，但缺乏记忆功能。额外的存储和处理单元将显着增加设备的复杂性和功耗，特别是对于便携式和可穿戴设备。这里，提出了一种受嗅觉启发的传感器内有机电化学晶体管（OI-OECT），具有化学信息解码、可调谐存储水平和蒸汽传感选择性的集成功能。离子凝胶电解质赋予OI-OECT具有可调记忆级别和低工作电压的功能。成功实现了典型的突触行为，包括抑制性突触后电流和配对脉冲促进。重要的是，气体存储器电平可以通过栅极电压（0和-1 V）有效调制，实现了易失性和非易失性存储器的转变。此外，得益于对多种气体的识别以及检测由气体引起的累积损害的能力，OI-OECT 被证明可用于针对两种气体（NH 3和 H 2 S）泄漏检测的预警系统。这项工作在单个设备中实现了化学气体信息解码、可调气体存储级别和气体选择性的集成功能，为未来人工嗅觉系统的发展提供了一条有希望的途径。
更新日期：2024-08-04
中文翻译：
用于多模式神经形态嗅觉系统的传感器内有机电化学晶体管
嗅觉系统是六种基本感觉神经系统之一。由于化学信息解码和记忆的复杂性，开发人工嗅觉系统具有挑战性。传统的化学传感器可以将化学信号转换为电信号来解码气体信息，但缺乏记忆功能。额外的存储和处理单元将显着增加设备的复杂性和功耗，特别是对于便携式和可穿戴设备。这里，提出了一种受嗅觉启发的传感器内有机电化学晶体管（OI-OECT），具有化学信息解码、可调谐存储水平和蒸汽传感选择性的集成功能。离子凝胶电解质赋予OI-OECT具有可调记忆级别和低工作电压的功能。成功实现了典型的突触行为，包括抑制性突触后电流和配对脉冲促进。重要的是，气体存储器电平可以通过栅极电压（0和-1 V）有效调制，实现了易失性和非易失性存储器的转变。此外，得益于对多种气体的识别以及检测由气体引起的累积损害的能力，OI-OECT 被证明可用于针对两种气体（NH 3和 H 2 S）泄漏检测的预警系统。这项工作在单个设备中实现了化学气体信息解码、可调气体存储级别和气体选择性的集成功能，为未来人工嗅觉系统的发展提供了一条有希望的途径。
京公网安备 11010802027423号