Solution process manufacture of a simple, multifunctional flexible sensor based on capacitance measurement
| Autor: | Cheol Shin, Jong-Woong Kim, Sungwoo Jun, Soo Jong Park, Jin Ho Kwak, Yooji Hwang, Kwang Wook Choi, Byeong Kwon Ju, Young Wook Park |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Fabrication
Materials science Nanowire Photodetector Bioengineering 02 engineering and technology 010402 general chemistry 01 natural sciences Capacitance Noise (electronics) chemistry.chemical_compound Polyvinyl butyral General Materials Science Electrical and Electronic Engineering Thin film business.industry Mechanical Engineering General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Semiconductor chemistry Mechanics of Materials Optoelectronics 0210 nano-technology business |
| Zdroj: | Nanotechnology. 32(26) |
| ISSN: | 1361-6528 |
| Popis: | Conventional sensors are rigid, involve complex processes and structures, and one sensor can detect only one type of stimulus. The manufacturing costs of such devices are high owing to the use of vacuum processes for the formation of thin films and electrodes and the complicated fabrication processes required to construct multiple layers. In addition, the multiple-layer design increases the risk of peeling due to mechanical movement. In this study, to solve the aforementioned problems, a simple two-layer multi-sensor has been fabricated using a non-vacuum solution process. The sensor consists of a light absorption layer comprising polyvinyl butyral and semiconductor particles and a top layer comprising two spiral-shaped Ag nanowire electrodes. The sensor experiences minimal damage by external adhesives and has a light-sensitive optical response at 420 nm and at 1.2 mW cm−2. Herein, the capacitance of the sensor applied to the two-electrode structure was determined, along with the light sensitivity and change in noise with frequency. We believe that the proposed multi-sensor can be applied in a wide range of fields because it can act as a touch sensor and light sensor. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|