Revamping Triboelectric Output by Deep Trap Construction

Revamping Triboelectric Output by Deep Trap Construction

Advanced Materials

10.1002/adma.202303389

http://dx.doi.org/10.1002/adma.202303389

Nannan Wang, Yizhe Liu, Yange Feng, Jing Yang, Yaze Wu, Boya Zhang, Yixuan Li, Bofan Li, Sheng Wang, Enyi Ye, Yong‐Wei Zhang, Xian Jun Loh, Feng Zhou, Zibiao Li, Daoai Wang

28 December 2023

Wang, N., Liu, Y., Feng, Y., Yang, J., Wu, Y., Zhang, B., Li, Y., Li, B., Wang, S., Ye, E., Zhang, Y., Loh, X. J., Zhou, F., Li, Z., & Wang, D. (2024). Revamping Triboelectric Output by Deep Trap Construction. Advanced Materials, 36(13). Portico. https://doi.org/10.1002/adma.202303389

High output performance is critical for building triboelectric nanogenerators (TENGs) for future multifunctional applications. Unfortunately, the high triboelectric charge dissipation rate has a significant negative impact on its electrical output performance. Herein, a new tribolayer is designed through introducing self‐assembled molecules with large energy gaps on commercial PET fibric to form carrier deep traps, which improve charge retention while decreasing dissipation rates. The deep trap density of the PET increases by two orders of magnitude, resulting in an 86% reduction in the rate of charge dissipation and a significant increase in the charge density that can be accumulated on tribolayer during physical contact. The key explanation is that increasing the density of deep traps improves the dielectric's ability to store charges, making it more difficult for the triboelectric charges trapped by the tribolayer to escape from the deep traps, lowering the rate of charge dissipation. This TENG has a 1300% increase in output power density as a result of altering the deep trap density, demonstrating a significant improvement. This work describes a simple yet efficient method for building TENGs with ultra‐high electrical output and promotes their practical implementation in the sphere of the Internet of Things.

Publisher Copyright

This research / project is supported by the Agency for Science, Technology and Research (A*STAR), Science and Engineering Research Council (SERC) - Central Research Fund (Use-inspired Basic Research)
Grant Reference no. : SC22/22-1090BA

This is the peer reviewed version of the following article: Wang, N., Liu, Y., Feng, Y., Yang, J., Wu, Y., Zhang, B., Li, Y., Li, B., Wang, S., Ye, E., Zhang, Y., Loh, X. J., Zhou, F., Li, Z., & Wang, D. (2024). Revamping Triboelectric Output by Deep Trap Construction. Advanced Materials, 36(13). Portico. https://doi.org/10.1002/adma.202303389, which has been published in final form at https://doi.org/10.1002/adma.202303389. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

https://oar.a-star.edu.sg/communities-collections/articles/20744

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