Triboelectric Nanogenerators: Enhancing Performance by Increasing the Charge-Generating Layer Compressibility
Triboelectric Nanogenerators: Enhancing Performance by Increasing the Charge-Generating Layer Compressibility
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DOI：
10.1021/acsmacrolett.2c00535
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发表时间：
2022-11-15
影响因子：
7.015
通讯作者：
Kim, Jin Kon
中科院分区：
文献类型：
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作者：
Jang, Junho;Choi, Chungryong;Kim, Jin Kon
摩擦电纳米发电机(TNG)因其结构简单、成本低等优点成为下一代可穿戴电子设备的研究热点。尽管TENG的性能与电荷产生层中的可压缩性效应密切相关，但使用传统弹性体实现高可压缩性是具有挑战性的，因为分子纠缠对交联网络的柔软性设置了下限。在这里，我们证明了瓶刷弹性体是有效的电荷产生层，通过最小化纠缠和降低压缩模数(E)来改善TENG的输出性能，包括电压、电流和表面电位。例如，带有聚二甲基硅氧烷侧链的交联型瓶刷产生的TENG的输出电压(120V)是线性PDMS网络(55V)的两倍多。总之，这项研究突出了设计新的电荷产生层的优势，并改善了可压缩性，以提高Teng性能。
Triboelectric nanogenerators (TENGs) have received significant attention for next-generation wearable electronics due to their simple device structure and low cost. Although the performance of TENGs is intimately tied to compressibility effects in the charge-generating layer, achieving high compressibility with conventional elastomers is challenging because molecular entanglements place a lower bound on the softness of cross-linked networks. Here, we demonstrate that bottlebrush elastomers are efficient charge-generating layers that improve the output performance of TENGs, including voltage, current, and surface potential, by minimizing entanglements and decreasing the compressive modulus (E). For example, a cross-linked bottlebrush with poly(dimethylsiloxane) side chains yielded TENGs with an output voltage (120 V) more than two times larger than a linear PDMS network (55 V). In conclusion, this study highlights the advantage of designing new charge-generating layers with improved compressibility to enhance TENG performance.