Printed Recyclable and Flexible Thermocouple Temperature Sensors

Advanced Sensor Research, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

Abstract Temperature sensors play a pivotal role in modern electronics, finding use across broad spectrum of applications. Nonetheless, traditional manufacturing methods for these devices consume substantial energy and materials, their widespread utilization often contributes to electronic waste, presenting significant environmental concerns. In this research, recyclable printed thermocouple temperature are developed that emphasize both cost‐efficiency ecological responsibility. The utilize readily available fillers (i.e., nickel flakes carbon black powders), paving the way scalable production. By incorporating re‐dissolvable polymers as binders, end‐of‐life can be easily disassembled, eliminating need harsh treatment or hazardous chemicals. ferromagnetic enhances straightforward separation different filler components, streamlining recycling workflow. Importantly, gentle conditions preserve functional fillers, preventing degradation oxidation thus enabling reprocessed retain original performance. addition, boast high mechanical flexibility, making them suitable seamless integration into various practical scenarios. All innovations not only reduce economic costs but also align with goals sustainable development, demonstrating promising pathway future sensing technology.

Language: Английский

Versatile Green Transfer of Magnetoelectronics with Loss‐Free Performance and High Adhesion for Interactive Electronics

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Abstract A stringent quality requirement for a nm‐thick multi‐stack heterostructures and delicate antiferromagnetic interlayer couplings inherent to giant magnetoresistive (GMR) sensors limits their seamless integration on objects with non‐planar surfaces and/or biological structures. Here, green transfer method of high performance mechanically robust GMR wide range biological, organic, inorganic substrates is demonstrated. Importantly, the technique relies water biocompatible polyvinyl alcohol (PVA) polymer requires no complex treatments that involve harsh chemicals conditions, allowing transferring causing harm environment. surface tension employed in process ensures smooth spreading sensor film reinforced by hydrophilic PVA layer, mitigating stress concentrations preserving its structural integrity. Transferred maintain performance, low noise, reveal excellent mechanical stability even after 3000 bending cycles. This fosters various applications, e.g., function as human‐machine interface wearable interactive electronics.

Language: Английский