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High‐performance flexible piezoelectric nanogenerator based on n ecklace‐like PZT particle chains
Author(s) -
Zhang Shuo,
Lin Xiujuan,
Liu Huan,
Yuan Zie,
Huan Yu,
Yuan Xi,
Huang Shifeng,
Cheng Xin
Publication year - 2020
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.6242
Subject(s) - piezoelectricity , voltage , materials science , nanogenerator , particle (ecology) , energy harvesting , stress (linguistics) , optoelectronics , power (physics) , electrical engineering , open circuit voltage , composite material , engineering , physics , oceanography , linguistics , philosophy , quantum mechanics , geology
Summary Flexible piezoelectric nanogenerators (F‐PENG) as a clean, green power generation device have attracted much attention. Dielectrophoresis (DEP) was used to prepare flexible piezoelectric nanogenerators with necklace‐like oriented structure. The results showed that the oriented structure significantly improved the electrical output performance of F‐PENG by enhancing the stress and free charge transmission. For the F‐PENG with 8 vol% oriented PZT particle, open‐circuit voltage and short‐circuit current reached 176 V and 35 μA and an instantaneous power of up to 2 mW was collected for an optimal matched load resistance of 6 MΩ. Output voltage and current increase by 135% and 133%, respectively, compared with the F‐PENG with random structure. Meanwhile, the finite element simulation results also confirmed the superiority of this oriented structure. There was a clear linear relationship between the output voltage and pressure, and the sensitivity was 1.13 N/V. The oriented PZT particle‐based F‐PENG with excellent electrical output performance has great application prospects in the fields of green power generation and self‐powered building monitoring system.