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利用互锁结构增强韧性金电极与聚二甲基硅氧烷(PDMS)之间的界面附着力,用于温度传感器应用。

Enhancing the Interfacial Adhesion of a Ductile Gold Electrode with PDMS Using an Interlocking Structure for Applications in Temperature Sensors.

作者信息

Shi Shuai, Zhao Penghao, Yang Pan, Zhao Le, Yi Jingguang, Wang Zuohui, Yu Shihui

机构信息

School of Power and Electrical Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China.

出版信息

Nanomaterials (Basel). 2025 Jun 28;15(13):1001. doi: 10.3390/nano15131001.

DOI:10.3390/nano15131001
PMID:40648708
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12251063/
Abstract

The poor interfacial adhesion between ductile gold (Au) electrodes and polydimethylsiloxane (PDMS) substrates affects their application in flexible sensors. Here, a porous Au electrode is designed and combined with a flexible PDMS substrate to form a structure that embeds Au into the PDMS film, thereby enhancing the interfacial adhesion of the Au/PDMS electrode. The resistivity change of the Au/PDMS electrode is only 12.3% after 100 tape peeling trials. The resistance of the Au/PDMS electrode remains stable at the 30% strain level after 2000 tensile cycling tests. This feature is mainly attributed to the deformation buffering effect of the porous Au film. After 100 min of ultrasonic oscillation testing, the resistivity change of the Au/PDMS electrode remains stable. It is also shown that the Au/PDMS electrode has excellent interfacial adhesion properties, which is mainly attributed to the interlocking effect of the Au/PDMS electrode structure. In addition, the temperature coefficient of resistance (TCR) of the temperature sensor based on the Au/PDMS electrode is approximately 0.00320/°C and the sensor's sensitivity remains almost stable after 200 temperature measurement cycles. Au/PDMS electrodes have great potential for a wide range of applications in flexible electronics due to their excellent interfacial adhesion and electrical stability.

摘要

延展性金(Au)电极与聚二甲基硅氧烷(PDMS)基底之间较差的界面附着力影响了它们在柔性传感器中的应用。在此,设计了一种多孔Au电极,并将其与柔性PDMS基底相结合,形成一种将Au嵌入PDMS薄膜的结构,从而增强Au/PDMS电极的界面附着力。经过100次胶带剥离试验后,Au/PDMS电极的电阻率变化仅为12.3%。经过2000次拉伸循环测试后,Au/PDMS电极在30%应变水平下的电阻保持稳定。这一特性主要归因于多孔Au薄膜的变形缓冲效应。经过100分钟的超声振荡测试后,Au//PD电极的电阻率变化保持稳定。研究还表明,Au/PDMS电极具有优异的界面附着力特性,这主要归因于Au/PDMS电极结构的互锁效应。此外,基于Au/PDMS电极的温度传感器的电阻温度系数(TCR)约为0.00320/°C,经过200次温度测量循环后,传感器的灵敏度几乎保持稳定。由于其优异的界面附着力和电稳定性,Au/PDMS电极在柔性电子学领域具有广泛的应用潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa4/12251063/aa01eea29b19/nanomaterials-15-01001-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa4/12251063/6b7e8f9edcb0/nanomaterials-15-01001-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa4/12251063/81abe67f249f/nanomaterials-15-01001-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa4/12251063/7a8fa0e9b498/nanomaterials-15-01001-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa4/12251063/21fce20f64dc/nanomaterials-15-01001-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa4/12251063/49e3fab68d6e/nanomaterials-15-01001-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa4/12251063/3cc850720b59/nanomaterials-15-01001-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa4/12251063/aa01eea29b19/nanomaterials-15-01001-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa4/12251063/6b7e8f9edcb0/nanomaterials-15-01001-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa4/12251063/81abe67f249f/nanomaterials-15-01001-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa4/12251063/7a8fa0e9b498/nanomaterials-15-01001-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa4/12251063/21fce20f64dc/nanomaterials-15-01001-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa4/12251063/49e3fab68d6e/nanomaterials-15-01001-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa4/12251063/3cc850720b59/nanomaterials-15-01001-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/baa4/12251063/aa01eea29b19/nanomaterials-15-01001-g007.jpg

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