Energy augmentation of triboelectric nanogenerators using PDMS/POA composite

• Main Authors: Sunil, Mathew, Saji, K. J., John, Honey
• Format: Conference Proceeding
• Language: English
• Subjects: Ammonium peroxodisulfate; Chemical synthesis; Curing agents; Nanogenerators; Open circuit voltage; Polyanisidine; Polydimethylsiloxane; Room temperature; Short circuit currents
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0158631

The current study focusses on the preparation, characterization and tribo property evaluation of polydimethylsiloxane (PDMS)/ poly(o-anisidine) (POA) composites. POA was synthesized by chemical oxidative polymerization of o-anisidine using ammonium persulfate as initiator and 1 M CSA as dopants at room temperature. The poly (o-anisidine) prepared was characterized using UV, FTIR, TEM and TGA analysis. PDMS/POA composite was prepared by ultrasonication assisted mixing followed by the room temperature curing using TEOS as curing agent and DBTDL as the accelerator in the ratio 100:10:1. A vertical contact mode TENG was fabricated by sandwiching the composite between two copper electrodes. Different compositions of PDMS/POA composite was prepared by varying the POA wt% in PDMS from 1wt% to 6wt% with respect to PDMS. The triboelectric properties such as short circuit current and open circuit voltage were increased upto 4wt% POA addition and then further addition the tribo properties were decreased. A maximum short circuit current of 13 µA and an open circuit voltage of 67.56 V was observed for PDMS/POA(4wt%) composite, which is higher than the open circuit voltage (27.3 V) and short circuit current (4.6 µA) of bare PDMS