Permeable Thermistor Temperature Sensors Based on Porous Melamine Foam

被引:7
作者
de Souza Oliveira, Hugo [1 ]
Khaanghah, Niloofar Saeedzadeh [1 ]
Han, Violet Yinuo [2 ]
Carrasco-Pena, Alejandro [1 ]
Ion, Alexandra
Haller, Michael [1 ]
Cantarella, Giuseppe [3 ]
Munzenrieder, Niko [1 ]
机构
[1] Free Univ Bozen Bolzano, Fac Engn, Bozen Bolzano, Italy
[2] Carnegie Mellon Univ, Human Comp Interact Inst, Pittsburgh, PA 15213 USA
[3] Univ Modena & Reggio Emilia, Dept Phys Informat Math, I-41121 Modena, Italy
关键词
Sensors; Temperature sensors; Humidity; Resistance; Sensor phenomena and characterization; Temperature measurement; Behavioral sciences; Thermal sensors; sensor applications; flexible sensors; permeability; temperature sensor; thermistor; thin-films; ELECTRONICS; FIBERS;
D O I
10.1109/LSENS.2023.3271590
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
sensors and electronics have gained much attention in recent years. They are especially interesting due to their abilities to conform to static and dynamic surfaces while keeping their functionality. These characteristics make them relevant for a wide range of applications, from health care and fitness monitoring to soft robotics. In this work, we go beyond simple mechanical flexibility and present a lightweight and permeable flexible sensor utilizing melamine foam as a substrate. The foam is coated with metallic copper (Cu) and semiconductive Indium-Gallium-Zinc-Oxide (InGaZnO) to form a thermistor-type temperature sensor. The sensor showed a very stable response when cycling the temperature between 25 degrees C and 51 degrees C, exhibiting a maximum sensitivity of -01.6%C-?(-1), a permeability of 366.6 g m(-2)h(-1) at 24 degrees C, and a maximum resistance variation of-2.9%RH-1 when varying the relative humidity from 40% to 70%. The device also remained fully functional even after being bent to a radius of 5 mm.
引用
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页数:4
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