| 학회 |
한국재료학회 |
| 학술대회 |
2017년 가을 (11/15 ~ 11/17, 경주 현대호텔) |
| 권호 |
23권 2호 |
| 발표분야 |
B. 나노화학/바이오 분과 |
| 제목 |
High-Performance Piezoelectric Nanogenerators Based on Polymer-Ceramic Composites |
| 초록 |
Recently, piezoelectric materials have attracted great attention as an active material in piezoelectric devices such as energy harvesting, self-powered sensors, actuators, and piezotronics. Among them, piezoelectric polymer-ceramic composite materials are promising candidate for small biomechanical energy resources to provide power sources for portable and personal electronics because of their inherent capability of combining the favorable properties of both ceramic and polymer materials. In this work, we report high-performance flexible piezoelectric nanogenerators (PNGs) based on a composite thin film, comprising of amine-functionalized PZT nanoparticles (NPs) and a thermoplastic triblock copolymer grafted with maleic anhydride. The chemically reinforced composites achieves the formation of a highly well-dispersed PZT NPs within polymer matrix as well as the enhancement of the stress applied to PZT NPs. Without an additional dispersion enhancer, our amine-functionalized PZT NP-based flexible PNG exhibit a high output voltage of 60 V and current of 1.6 μA without time-dependent degradation, which are high enough to operate a commercial light emitting diodes (LEDs). Our proposed approach is an unprecedented improvement in the composite-based PNG research for self-powered flexible energy source to realize the wearable electronics and sensors in ubiquitous wireless communication. |
| 저자 |
Eun Jung Lee, Beyong-Hwan Ryu, Sunho Jeong, Youngmin Choi, Su Yeon Lee
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| 소속 |
Korea Research Institute of Chemical Technology (KRICT) |
| 키워드 |
PZT; Nanogenerator; Energy harvesting; Nanocomposites; self-powered piezoelectric devices
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| E-Mail |
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