Flexible Copper-Based Thermistors Fabricated by Laser Direct Writing for Low-Temperature Sensing

作者：Zilong Peng, Wei Guo, Tong Liu, Xuewei Wang, Daozhi Shen, Ying Zhu, Xingwen Zhou, Jianfeng Yan, Hongqiang Zhang · 发表于：ACS Applied Materials & Interfaces · 年份：2024 · DOI：10.1021/acsami.3c15995 · 被引用次数：24 · 研究领域：Gas Sensing Nanomaterials and Sensors、Electrical and Thermal Properties of Materials、Electronic and Structural Properties of Oxides

With the flexibilization tendency of traditional electronics, developing sensing devices for the low-temperature field is demanding. Here, we fabricated a flexible copper-based thermistor by a laser direct writing process with Cu ion precursors. The copper-based thermistor performs with excellent temperature sensing ability and high stability under different environments. We discussed the effect of laser power on the temperature sensitivity of the copper-based thermistor, explained the sensing mechanism of the as-written copper-based films, and fabricated a temperature sensor array for realizing temperature management in a specific zone. All of the investigations have demonstrated that such copper-based thermistors can be used as candidate devices for low-temperature sensing fields.