| 학회 |
한국재료학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 삼척 쏠비치 호텔&리조트) |
| 권호 |
25권 2호 |
| 발표분야 |
A. 전자/반도체 재료 분과 |
| 제목 |
Highly Sensitive, Stretchable Hydrogen Gas Sensor with Embedded Pd Nanoparticles for Wearable Electronics |
| 초록 |
Hydrogen gas (H2) has been studied a lot of advantages, such as eco-friendly renewable energy, hybrid vehicle fuel, and battery. Despite these advantages, H2 has highly flammable, colorless and odorless characteristics that makes hazard in the place where hydrogen gas is used and detection device in case of leakage occurs is essential. Herein, we present ultra-sensitive fiber-type resistive H2 gas sensors by simply immersing polymer fibers into metal precursor chemical solutions. Palladium nanoparticles (PdNPs) are embedded in the polyurethane (PU) fiber, which is acts as a conducting path and lowers resistance of polymer that responds to H2 gas. The electrical resistance change rate of the fiber-type sensor shows −27.3% response at 10% H2 gas and −0.43% response at 0.0005% H2 gas. As PU fiber structure having flexibility and stretchability, the sensor can still detect H2 gas under 70% strain and after repeated strain and release cycles. In industrial applications, the highly pre-strained fiber is integrated into an industrial safety clothing along with a micro inorganic light emitting diode (μ-ILED) for visual indication, which exhibited proper activation upon H2 gas exposure. |
| 저자 |
Chihyeong Won1, Sanggeun Lee2, Taeyoon Lee3
|
| 소속 |
1Nanobio Device Laboratory, 2School of Electrical and Electronic Engineering, 3Yonsei Univ. |
| 키워드 |
Fiber-type sensor; hydrogen sensors; stretchable sensor; wearable electronics
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| E-Mail |
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