PEDOT:PSS Microchannel-Based Highly Sensitive Stretchable Strain Sensor
PEDOT:PSS Microchannel-Based Highly Sensitive Stretchable Strain Sensor
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DOI：
10.1002/aelm.202000445
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发表时间：
2020-07-14
影响因子：
6.2
通讯作者：
Dahiya, Ravinder
中科院分区：
文献类型：
--
作者：
Bhattacharjee, Mitradip;Soni, Mahesh;Dahiya, Ravinder
本文介绍了在聚二甲基硅氧烷基底内开发的基于聚(3,4-乙烯二氧噻吩)聚苯乙烯磺酸盐聚合物微通道(直径约175μm)的可拉伸应变传感器。微通道直径在受到各种应变时会发生变化，从而导致应变传感器的电阻发生变化。对于 10% 的外加应变（Delta L/L，L = 传感器的长度），传感器的电阻 (R) 表现出约三个数量级（Delta R/R-0 约为 1200）的增加。这导致应变系数 (GF Delta (Delta R/R-0)/(Delta L/L) 约为 12 000，比大多数报道的基于聚合物的应变传感器高约 400 倍。传感器的评估最大应变为 30%，这是与手指和手腕等人体部位相关的标准应变极限。传感器表现出相当好的平均滞后程度 (
This paper presents poly(3,4-ethylenedioxythiophene) polystyrene sulfonate polymer microchannel (diameter approximate to 175 mu m) based stretchable strain sensor developed inside polydimethylsiloxane substrate. The microchannel diameter changes when subjected to various strains, leading to change in the resistance of strain sensor. The sensor exhibits about three order (Delta R/R-0 approximate to 1200) increase in the resistance (R) for 10% applied strain (Delta L/L,L = length of the sensor). This leads to a gauge factor (GF Delta (Delta R/R-0)/(Delta L/L) of approximate to 12 000, which is about approximate to 400 times higher than most of the reported polymer-based strain sensors. The sensor is evaluated up to a maximum strain of 30%, which is the standard strain limit associated with human body parts such as fingers and wrists. The sensor exhibits a considerably good average degree of hysteresis (