Ferroelectric Nematic Liquid Crystals as Charge Boosters for Triboelectric Nanogenerators
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866914166484238336 |
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| author | Ye, Jia-Yao Chakraborty, Susanta Subramani, Karthick Tang, Xing-Zhou Xie, Yan-Nan Li, Bing-Xiang |
| author_facet | Ye, Jia-Yao Chakraborty, Susanta Subramani, Karthick Tang, Xing-Zhou Xie, Yan-Nan Li, Bing-Xiang |
| contents | Driven by growing demand for clean energy, triboelectric nanogenerators (TENGs) have emerged as promising self-powered systems, yet achieving high charge density remains a critical challenge. In polymer dielectrics, triboelectricity can be further amplified by incorporating high-dielectric and polar materials for functional adaptability. Conventional dielectrics, including liquid crystals (LCs), offer limited improvement for triboelectrification, whereas the breakthrough ferroelectric nematic liquid crystals (NF-LCs), with giant spontaneous polarization and high dielectric constant, act as highly effective charge boosters. Here, we introduce NF-LC (DIO) as a functional filler in a PVDF-based TENG. Increasing DIO content progressively grows the electroactive phase and effective polarization in PVDF and defines a marked improvement in TENGs electrical performances through favourable dipolar alignment and strengthened charge-trap effects. The optimized composite film achieves an impressive open-circuit voltage of 1.1 kV, short-circuit current of 50 micro Amp, and power density of 110 W/m2 - seven times higher than pure PVDF. The device exhibits excellent charge-storage capability, powers over 500 LEDs without power management. This work establishes NF-LC-based TENGs as a new platform for high-performance self-powered energy harvesting, linking soft matter physics with applied energy technology. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_17202 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Ferroelectric Nematic Liquid Crystals as Charge Boosters for Triboelectric Nanogenerators Ye, Jia-Yao Chakraborty, Susanta Subramani, Karthick Tang, Xing-Zhou Xie, Yan-Nan Li, Bing-Xiang Applied Physics Materials Science Driven by growing demand for clean energy, triboelectric nanogenerators (TENGs) have emerged as promising self-powered systems, yet achieving high charge density remains a critical challenge. In polymer dielectrics, triboelectricity can be further amplified by incorporating high-dielectric and polar materials for functional adaptability. Conventional dielectrics, including liquid crystals (LCs), offer limited improvement for triboelectrification, whereas the breakthrough ferroelectric nematic liquid crystals (NF-LCs), with giant spontaneous polarization and high dielectric constant, act as highly effective charge boosters. Here, we introduce NF-LC (DIO) as a functional filler in a PVDF-based TENG. Increasing DIO content progressively grows the electroactive phase and effective polarization in PVDF and defines a marked improvement in TENGs electrical performances through favourable dipolar alignment and strengthened charge-trap effects. The optimized composite film achieves an impressive open-circuit voltage of 1.1 kV, short-circuit current of 50 micro Amp, and power density of 110 W/m2 - seven times higher than pure PVDF. The device exhibits excellent charge-storage capability, powers over 500 LEDs without power management. This work establishes NF-LC-based TENGs as a new platform for high-performance self-powered energy harvesting, linking soft matter physics with applied energy technology. |
| title | Ferroelectric Nematic Liquid Crystals as Charge Boosters for Triboelectric Nanogenerators |
| topic | Applied Physics Materials Science |
| url | https://arxiv.org/abs/2511.17202 |