Kang Chang Wan, Lee Dong-Min, Park Jina, Bang Sohee, Kim Sang-Woo, Son Seung Uk
Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Korea.
School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, 16419, Korea.
Angew Chem Int Ed Engl. 2022 Nov 14;61(46):e202209659. doi: 10.1002/anie.202209659. Epub 2022 Oct 18.
Core-shell nanospheres were prepared by the homogeneous coating of piezoelectric ZnO nanorod aggregates with triboelectric microporous organic polymer (MOP). The small energy harvesting performance of ZnO@MOP was significantly enhanced, compared with those of ZnO and MOP, due to the piezoelectrification-induced polarization of inner ZnO and the enhanced generation of tribopositive charges of MOP. Piezo-triboelectric nanogenerators (PTENGs) fabricated with ZnO@MOP showed peak-to-peak voltages of up to 534 V and a maximum power density of 1.19 mW cm . In addition, the PTENGs showed excellent durability for 30 000 cycles, demonstrating as efficient power sources for charging electrolytic capacitors and for operating 200 green light emitting diode bulbs.
通过用摩擦电微孔有机聚合物（MOP）均匀包覆压电ZnO纳米棒聚集体制备了核壳纳米球。与ZnO和MOP相比，ZnO@MOP的小能量收集性能显著增强，这归因于内部ZnO的压电起电诱导极化以及MOP摩擦正电荷产生的增强。用ZnO@MOP制造的压电热电纳米发电机（PTENG）的峰峰值电压高达534 V，最大功率密度为1.19 mW/cm²。此外，PTENG在30000次循环中表现出优异的耐久性，证明其是用于给电解电容器充电和驱动200个绿色发光二极管灯泡的高效电源。
