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Core-Shell ZnO@Microporous Organic Polymer Nanospheres as Enhanced Piezo-Triboelectric Energy Harvesting Materials
- Authors
- Kang, C.W.[Kang, C.W.]; Lee, D.-M.[Lee, D.-M.]; Park, J.[Park, J.]; Bang, S.[Bang, S.]; Kim, S.-W.[Kim, S.-W.]; Son, S.U.[Son, S.U.]
- Issue Date
- Nov-2022
- Publisher
- John Wiley and Sons Inc
- Keywords
- Microporous Organic Polymer; Piezoelectric Energy; Small Energy Harvesting; Triboelectric Energy; Zinc Oxide
- Citation
- Angewandte Chemie - International Edition, v.61, no.46
- Indexed
- SCIE
SCOPUS
- Journal Title
- Angewandte Chemie - International Edition
- Volume
- 61
- Number
- 46
- ISSN
- 1433-7851
- Abstract
- 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−2. 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. © 2022 Wiley-VCH GmbH.
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