| 학회 |
한국재료학회 |
| 학술대회 |
2018년 가을 (11/07 ~ 11/09, 여수 디오션리조트) |
| 권호 |
24권 2호 |
| 발표분야 |
D. 구조 재료 분과 |
| 제목 |
Flexible Nanogenerators for Energy Harvesting based on Perovskite Piezoelectric Nanostructures directly grown on graphene oxide |
| 초록 |
Nanogenerators (NGs) that harvest energy from mechanical vibration are an attractive area of energy environment fields. Recent, many recent researches have focused on flexible NG with the direct growth of a piezoelectrics on flexible materials such as a paper, a virus, a fiber, and a carbon nanotube. We report a successful growth of BaTiO3 (BTO) nanoparticles (NPs) interconnected with graphene oxide (BTONPs-GO) through hydrothermal method. This method allows the nucleation of BTO crystals on the GO and simultaneously the growth of BTO crystals. The BTONPs-GO with perovskite phase was well formed by hydrothermal method which was confirmed by XPS, XRD, and TEM analysis. The piezoelectricity of BTONP-GO was measured by piezoresponse force microscopy, and the in-plane domain switching was observed at 1V ac voltage. We found that the NG measurements by using a BTONPs-GO exhibit a polarity property, output signals of 7.2 V, and power density of 1.25μW/cm2 at road resistance of 800 MΩ by periodic bending movements. We will discuss the relationship between power generation and domain dynamics of BTONPs-GO. |
| 저자 |
Da Som Song1, Jin Kyu Han2, Wooseok Song1, Sung Myung2, Sun Sook Lee1, Ki-Seok An2, Jongsun Lim1
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| 소속 |
1Thin Film Materials Research Center, 2Korea Research Institute of Chemical Technology |
| 키워드 |
nanogenerator; piezoelectrics; grahpene oxide; hydrothermal
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| E-Mail |
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