Sodium Dodecyl Sulfate-Functionalized Carbon Nanotube / Polydimethylsiloxane Composites for High Performance Triboelectric Nanogenerator

Abstract

This research presents a fabrication of triboelectric nanogenerator (TENG) using the sodium dodecyl sulfate (SDS)-functionalized carbon nanotube (CNT) / polydimethylsiloxane(PDMS) composites (SDS/CNT/PDMS) as a negative electrode and polyethylene terephthalate / indium tin oxide (PET/ITO) as a positive electrode. The effect of CNT concentration and the SDS concentration were on TENG performance were investigated. Experimental results indicate that the SDS/CNT/PDMS is an effective electrode to enhance the output voltage of TENG with a maximum voltage of 66.8 V enabled an approximately 6-fold improvement in voltage output compared to the pristine PDMS. CNT may help to the high conductivity and flexibility of CNT, resulting in fast charge transfer and fast shape-recovery, while SDS may help to increase charge density and furthermore CNT dispersion.