Thermo and flex multi-functional array ionic sensor for a human adaptive device
Autor: | Jang Yeon Kwon, Suk Yang, Sukjin Jang, Daehwan Choi |
---|---|
Rok vydání: | 2019 |
Předmět: |
Flexibility (engineering)
Resistive touchscreen Materials science Pixel business.industry General Chemical Engineering Capacitive sensing Electronic skin 02 engineering and technology General Chemistry Bending 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Parasitic capacitance Optoelectronics Array data structure 0210 nano-technology business |
Zdroj: | RSC Advances. 9:36960-36966 |
ISSN: | 2046-2069 |
Popis: | Recently, electronic skin that mimics human skin in measuring tactile stimuli, temperature, and humidity and having a self-healing function was developed. Furthermore, with the advances in the field of artificial intelligence and health monitoring, various materials and methods have been studied for e-skin. The limitations to work on actual human skin include device flexibility and large-area applications through array structures, and many studies are underway to overcome these problems. Polymeric materials containing ionic liquids can be used to easily fabricate devices in the solid state. They are highly sensitive to both pressure and temperature, making them suitable for multi-sensing devices. Resistive and capacitive sensors have the advantage of having a simple structure, which makes them easy to fabricate. In a single device, both types work well. For resistive sensors, the temperature sensitivity (1.1/°C) is relatively high. Conversely, capacitive sensors have a low temperature sensitivity (0.3/°C). However, they have the advantage of being uniformly variable under each condition and having a smaller error range. In the array structure, independent flex and thermo sensors are arranged repeatedly. The resistive type shows changes in temperature and bending, but in the capacitive type, it is difficult to obtain results from the pixels due to parasitic capacitance. |
Databáze: | OpenAIRE |
Externí odkaz: |