HomePhilippine Journal of Material Science and Nanotechnologyvol. 5 no. 1 (2019)

Seebeck Effect in Polypyrrole/ITO Structures Synthesized via Pulsed-Galvanostatic Polymerization

Ralph Lauren Caser | Raynor Kirkson Chavez | Miles Louis Lim | Alyssa Marie Llanes | Chiara Rosario Julia V. Lanuza | Norberto T. Alcantara | Enrique M. Manzano | Maria Carla F. Manzano



As worldwide energy demands increase; new sources of renewable energy must be found. Thermoelectric generators have the potential to harness the vast amounts of waste heat coming off current machines, electronics, and infrastructure. In this study, conducting polypyrrole (PPy) doped with Na ptoluenesulfonate (Na-pTs) and hydroquinone sulfonic acid potassium salt (3) were electrochemically deposited on Indium-Tin-Oxide (ITO) glass slides at various duty cycles. Positive Seebeck coefficients were measured from all PPy(Na-pTs) /ITO structures, and on PPy(3)/ITO structures synthesized at 20% and 40% duty cycles. Seebeck coefficients ranging from - 4.45 to 29.0mV/K were obtained. The Ppy(Na-pTs)/ITO structures exhibited higher Seebeck coefficients and open-circuit voltages than the PPy(3)/ITO structures.