| 학회 |
한국재료학회 |
| 학술대회 |
2015년 가을 (11/25 ~ 11/27, 부산 해운대그랜드호텔) |
| 권호 |
21권 2호 |
| 발표분야 |
G. 나노/박막 재료 |
| 제목 |
Flexible and transparent hydrogen gas sensors based on palladium-decorated graphene mesh |
| 초록 |
We fabricated flexible and transparent hydrogen gas sensors based on palladium-decorated graphene mesh. Electron microscopy analysis confirmed that ~2-3 nm diameter Pd nanoparticles were uniformly dispersed on the graphene mesh surfaces. The sensors were highly transparent with an average optical transmission ＞ 90% to visible light and exhibited good electrical stability with a resistance change of 1.5% under a tensile strain of 1.1% in a cyclic bending-unbending test. Compared with graphene-based sensor, the graphene mesh sensors exhibited a faster response to hydrogen gas with sensitivity as high as ~5% at a low concentration of 10 ppm H2/air, even at room temperature. The enhanced H2 detection characteristic of the graphene mesh sensors is attributed to the existence of edges. |
| 저자 |
김수한, 박원일
|
| 소속 |
한양대 |
| 키워드 |
graphene; mesh structure; Pd nanoparticles; hydrogen sensor
|
| E-Mail |
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