| 초록 |
Triboelectric nanogenerator (TENG) have attracted great attention as a new energy generation for scavenging mechanical energy because of their high efficiency. The enhancement of TENG’s performance can achieve by material modifications, such us flexibility, functionally surface and dielectric constant. In this regards, we design TENG using modification of sponge polydimethylsiloxane (PDMS) with polydopamine (PDA) and gold nanoparticle (Au NPs) as effective dielectric. By using sugar templates, the flexible sponge-structured PDMS has been successfully fabricated. Furthermore, we introduced a facile path for surface modification in which self-polymerization of dopamine through simple dip-coating method. In the presence of catechol and N-H groups, Au NPs can chemically attached to the pore of PDMS sponge. With this structure (PDMS sponge/PDA/Au NPs), the TENG’s output voltage and current are enhanced by several times compared with only PDMS sponge, PDMS /PDA and PDMS sponge/Au NPs. |
