Anti-interference characteristics, whereby undesirable signal interference is minimized, are required for multifunctional sensor platforms. In this study, an anti-temperature-interference resistive-type strain sensor, which does not respond to temperature but only to strain, is designed. Anti-interference properties were achieved by modulating the temperature coefficient of resistance (TCR) of metal nanoparticles (NPs) through hybrid chemical treatment with organic and halide ligands that induce negative and positive TCRs, respectively. Consequently, a very low TCR of 1.9 × 10⁻⁵ K⁻¹ was obtained. To investigate the origin of this near-zero TCR, analyses of correlated electrical, thermal, and mechanical properties were performed in addition to structural characterization and analysis. Density functional theory calculations and electrical percolation modeling were performed to illuminate the transport behavior in the near-zero-TCR NP thin films. Finally, we fabricated a high-performance anti-temperature-interference strain sensor using a solution process. The sensors detect a variety of strains, including those arising from large movements, such as wrist and knee movements, and fine movements, such as artery pulses or movements made during calligraphy, and did not respond to temperature changes.

中文翻译：

---

具有金属纳米颗粒薄膜和混合配体交换的可穿戴抗温度干扰应变传感器

多功能传感器平台需要抗干扰特性，从而将不希望的信号干扰降至最低。本研究设计了一种抗温度干扰的电阻型应变传感器，它不响应温度，只响应应变。抗干扰特性是通过用有机和卤化物配体进行混合化学处理来调节金属纳米颗粒 (NPs) 的电阻温度系数 (TCR) 来实现的，这些配体分别诱导负和正 TCR。因此，1.9 × 10 ^-5 K ^{-1的非常低的 TCR}获得了。为了研究这种接近于零的 TCR 的起源，除了结构表征和分析之外，还对相关的电学、热学和机械性能进行了分析。进行密度泛函理论计算和电渗流建模以阐明近零 TCR NP 薄膜中的传输行为。最后，我们使用溶液工艺制造了一种高性能的抗温度干扰应变传感器。传感器检测各种应变，包括由手腕和膝盖运动等大运动引起的应变，以及诸如动脉脉搏或书法运动等精细运动引起的应变，并且对温度变化没有反应。