Studying the effect of thread materials on the response of fiber-based organic electrochemical transistors for pH sensing
Studying the effect of thread materials on the response of fiber-based organic electrochemical transistors for pH sensing
复制标题
研究线材料对 pH 传感用纤维有机电化学晶体管响应的影响
DOI：
10.1117/12.2677536
复制
发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Takshi, Arash I.
中科院分区：
文献类型：
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作者：
Marquez Rios, Nestor O.;Khattak, Nida;Seufert, Bianca;Takshi, Daniel;Takshi, Arash I.
在众多的导电聚合物中，PEDOT：PSS由于其优异的稳定性和电化学性能而被用于制备有机电化学晶体管（OECTs）。随着可穿戴电子产品市场的快速增长，OECT已被提出用于可穿戴传感器。然而，大多数OECT具有平面设计。最近，我们已经证明了在缝纫线上制造OECT的可行性。 这项工作的重点是研究线程材料的性能的纤维为基础的OECTs的可穿戴pH传感器的影响。这种传感器可用于通过分析汗液的pH值来从患者的身体收集代谢信息。使用三种商业上最常见的不同种类的线以聚乙烯醇（PVA）凝胶作为电解质来制造OECT。使用100%棉、25%棉-75%聚酯和32%棉-68%聚酯线来制造晶体管，然后表征晶体管。用PEDOT：PSS聚合物涂覆线以用作通道，然后使用银涂覆的线作为门和PVA凝胶电解质。通过向晶体管端子施加不同电压并监测通过PEDOT：PSS的电流来测试器件。最好的信号是由25%棉-75%聚酯线制成的装置获得的。实验结果表明，一个有前途的方法，可以导致一个良好的可穿戴pH传感器对人体汗液。
Among different conducting polymers, PEDOT:PSS has been used for making organic electrochemical transistors (OECTs) due to the remarkable stability and the electrochemical properties of the polymer. With the fast-growing market for wearable electronics, the application of OECTs has been proposed for wearable sensors. However, the majority of OECTs have a planar design. Recently, we have demonstrated the feasibility of fabricating OECTs on sewing threads. This work has focused on studying the effect of thread materials on the performance of fiber-based OECTs made for wearable pH sensors. Such sensors can be used to collect metabolic information from the body of a patient by analyzing the pH of perspiration. The three most commercially common different kinds of threads were used to make OECTs with polyvinyl alcohol (PVA) gel as the electrolyte. Using 100% cotton, 25% cotton-75% polyester, and 32% cotton-68% polyester threads were used to fabricate and then characterize the transistor. Threads were coated with PEDOT:PSS polymer to use as a channel then use a Silver coated thread as a gate and a PVA gel electrolyte. Devices were tested by applying different voltages to the transistor terminals and monitoring the current through the PEDOT:PSS. The best signal was obtained from the device made on 25% cotton-75% polyester thread. The experimental results showed a promising approach that can lead to a good wearable pH sensor on human perspiration.
用于可穿戴电子产品的具有凝胶电解质的基于纤维的有机电化学晶体管的稳定性
DOI：
10.1117/12.2633175
发表时间：
2022
期刊：
Organic and Hybrid Sensors and Bioelectronics XV
影响因子：
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作者：
Marquez Rios, Nestor O.;Takshi, Arash
通讯作者：
Takshi, Arash