Boosting performance of triboelectric nanogenerator via polydimethylsiloxane modified with perovskite BiFeO₃ nanoparticles

ABSTRACT

Triboelectric nanogenerators (TENGs) have great potential applications in the field of microelectronics. However, the low surface charge density of the triboelectric layer is one of the key problems greatly limiting its output performance. Herein, we report a high-performance TENG using BiFeO₃@polydimethylsiloxane (BFO@PDMS) composite film as a triboelectric layer. The results indicate that doping a small amount of BFO particles can significantly increase the dielectric constant and surface area of the PDMS film, which maximises the surface charge density of the triboelectric layer. With an optimized doping concentration  , the dielectric constant of BFO@PDMS composite film is 14.2% higher than that of the pure PDMS film. The BFO@PDMS-based TENG delivers a maximum output voltage and current of 180 V and 30 μA, corresponding to 200% and 500% increases compared with pure PDMS film, respectively, which can drive an electronic watch and light 52 LEDs, indicating potential applications in microelectronic devices.

KEYWORDS:

• Perovskite BFO
• BFO@PDMS composite film
• dielectric properties
• surface charge density
• triboelectric nanogenerator

Acknowledgments

This work was supported by the National Natural Science Foundation of China (Grant No. 52065038), the Outstanding Youth Foundation of Gansu Province (Grant No. 21JR7RA275), the Tamarisk Outstanding Young Talents Program of Lanzhou University of Technology in 2020 (Grant No. 062004), Project funded by China Postdoctoral Science Foundation (Grant No. 2021M693836) and the Outstanding Young Talents Training Program of State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals (Grant No. 2018004). We wish to acknowledge Professor Yu-Lunch Chueh, National Tsinghua University, for his help in interpreting the significance of the results of this study.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Supplementary material

Supplemental data for this article can be accessed online at https://doi.org/10.1080/10667857.2022.2138804

Additional information

Funding

This work was supported by the China Postdoctoral Science Foundation [No. 2021M693836]; National Natural Science Foundation of China [No.52065038]; the Outstanding Young Talents Training Program of State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology [No. 2018004]; the Outstanding Youth Foundation of Gansu Province [No. 21JR7RA275]; the Tamarisk Outstanding Young Talents Program of Lanzhou University of Technology [No. 062004].