| 학회 |
한국재료학회 |
| 학술대회 |
2021년 가을 (11/24 ~ 11/26, 경주 라한호텔) |
| 권호 |
27권 2호 |
| 발표분야 |
B. 나노화학/바이오 재료 분과 |
| 제목 |
A Flexible Piezoelectric Nanogenerator Based on Lead-free Piezoelectric Nanoparticle-Polymer Composite |
| 초록 |
Lead-free piezoelectric nanoparticles which reduce the toxicity of lead-based materials have been adopted for piezoelectric energy harvesters. BaTiO3-based materials, one of the most commonly used lead-free piezoelectric materials, has high dielectric and ferroelectric properties. However, it still does not exhibit outstanding piezoelectricity compared to lead-based materials. We present a high-performance piezoelectric nanogenerator based on BZT-BCT (BCTZ) nanoparticles (NPs) with Ca and Zr-doping to BaTiO3 to obtain improved piezoelectricity. BCTZ NPs are synthesized by a sol-gel method and resulted in crystalline powders after calcination and sintering. A composite thin film comprising the as-prepared BCTZ NPs dispersed in polydimethylsiloxane matrix sandwiched between two conductive plastic substrates exhibits output voltage of 40 V and current of 4 μA during periodic bending-unbending motions. |
| 저자 |
Nara Shin, Eun Jung Lee, Young Dae Kim, Tae Su Kim, Sungmook Jung, Youngmin Choi, Su Yeon Lee
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| 소속 |
Korea Research Institute of Chemical Technology (KRICT) |
| 키워드 |
<P>Piezoelectric energy harvester; Lead-free piezoelectric nanoparticles; Nanoparticle-polymer composite; Synthesis; Thin film</P>
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| E-Mail |
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