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首页> 外文期刊>RSC Advances >Dielectric control of porous polydimethylsiloxane elastomers with Au nanoparticles for enhancing the output performance of triboelectric nanogenerators
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Dielectric control of porous polydimethylsiloxane elastomers with Au nanoparticles for enhancing the output performance of triboelectric nanogenerators

机译：具有Au纳米颗粒的多孔聚二甲基硅氧烷弹性体的介电控制，提高摩擦纳米液的输出性能

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摘要

Taking advantage of the triboelectrification effect and electrostatic induction, triboelectric nanogenerators (TENGs) provide a simple and efficient path to convert environmental mechanical energy into electric energy. Since the generation of surface charges and their density on triboelectric materials are the key factors in determining TENG performance, many efforts have been undertaken to engineer the structures and chemistry of triboelectric materials. Among others, dielectric control of triboelectric materials is an emerging approach because the dielectric constant is intimately correlated with the capacitance of materials. In this regard, we prepared porous polydimethylsiloxane (PDMS) composites decorated with Au nanoparticles (NPs), which was designed to engineer the compressibility and dielectric constant of PDMS elastomer. To this end, a polydopamine layer was synthesized on the PDMS surface to facilitate the homogeneous deposition of Au NPs. Unlike untreated PDMS sponges, Au NPs were efficiently coated onto polydopamine-treated PDMS sponges to increase the dielectric constant. When the resulting porous NP-PDMS composites were assembled into TENG devices, the electrical output of the TENGs initially improved but decreased with the amount of Au NPs. This trade-off relationship has been discussed in terms of charge generation on the air surface and pores of NP-PDMS composites based on a recent experimental model.
机译：利用摩擦力效应和静电感应，摩擦纳米能器（Tengs）提供了一种简单有效的路径，可以将环境机械能转化为电能。由于表面收费的产生及其对摩擦电材料的密度是确定滕表现的关键因素，因此已经开展了许多努力，为摩擦电材料的结构和化学制造。其中，摩擦材料的介电控制是一种新出现的方法，因为介电常数与材料的电容密切相关。在这方面，我们制备了多孔的聚二甲基硅氧烷（PDMS）复合材料，其装饰着Au纳米颗粒（NPS），该复合材料设计为设计为PDMS弹性体的可压缩性和介电常数。为此，在PDMS表面上合成多胺层层以促进Au nps的均匀沉积。与未处理的PDMS海绵不同，Au NPS有效地涂覆到多胺处理的PDMS海绵上以增加介电常数。当所得的多孔NP-PDMS复合材料组装到滕器件中时，龄的电输出最初改善但随着Au nps的量而降低。在最近的实验模型的基于最近的实验模型的空气表面上的电荷发电和NP-PDMS复合材料的孔隙中，已经讨论了这种权衡关系。

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  • 来源
    《RSC Advances》 |2020年第36期|共9页
  • 作者

    Biutty Merreta Noorenza; Koo Ja Min; Zakia Maulida; Handayani Puji Lestari; Choi U. Hyeok; Yoo Seong Il;

  • 作者单位

    Pukyong Natl Univ Dept Polymer Engn Busan 48547 South Korea;

    Pukyong Natl Univ Dept Polymer Engn Busan 48547 South Korea;

    Pukyong Natl Univ Dept Polymer Engn Busan 48547 South Korea;

    Pukyong Natl Univ Dept Polymer Engn Busan 48547 South Korea;

    Inha Univ Dept Polymer Sci &

    Engn Incheon 22212 South Korea;

    Pukyong Natl Univ Dept Polymer Engn Busan 48547 South Korea;

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  • 正文语种 eng
  • 中图分类 化学;
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