| 학회 |
한국재료학회 |
| 학술대회 |
2016년 가을 (11/16 ~ 11/18, 경주 현대호텔) |
| 권호 |
22권 2호 |
| 발표분야 |
A. 전자/반도체 재료 분과 |
| 제목 |
Arbitrary-direction Energy Harvesting using Fiber-type Flexible Piezoelectric Nanogenerators consisted of Perovskite PbTiO3 Nanotube Arrays |
| 초록 |
We report our attempt to preparing new fiber-type piezoelectric nanogenerator (p-NG) devices consisting of radially aligned perovskite PbTiO3 nanotubes (PTO NTs) using hydrothermal method with anodized TiO2 NT as a positive template, which resulted in a PTO-NTs/Ti core shell fiber. The NG device, embedding one or two PTO-NTs/Ti core shell fibers in polymer matrix, successfully generates electrical energy through bending and wind motion. Using a single PTO-NTs/Ti core shell fiber, we present the p-NG devices which exhibit a polarity property indicating their piezoelectricity with output voltage of 620 mV by periodic bending movements, and generation of output voltage regardless of concave and convex bending direction. Moreover, p-NG devices using double PTO-NTs/Ti core shell fibers, which are embedded in cylindrical PDMS mold, are possible to generate the electric potential from all-directions by wind motion. Our results represent a momentous step towards the application of energy harvesting in flexible electronics, portable devices, and mechanical sensors. |
| 저자 |
Young Bum Lee1, Jin Kyu Han1, Seong Ku Kim1, Suttinart Noothongkaew2, Wooseok Song1, Sung Myung1, Sun Sook Lee1, Jongsun Lim1, Sang Don Bu3, Ki-Seok An1
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| 소속 |
1Korea Research Institute of Chemical Technology (KRICT), 2Faculty of Science Ubon Ratchathani Univ., 3Chonbuk National Univ. |
| 키워드 |
arbitrary direction; nanogenerator; piezoelectric nanotubes; anodic oxidation; hydrothermal method
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| E-Mail |
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