Multi-physics simulations of pyroelectric harvesters based on nanoscale ferroelectrics

In this paper, we present the COMSOL Multiphysics simulations of a hafnium oxide-based system that can collect energy and transform it into a $\boldsymbol{DC}$ voltage, namely a pyroelectric harvester. Energy harvesting has been attracting a tremendous interest in the last years. $\boldsymbol{In}$ this sense, accurate models of energy harvesters need to be rigorously simulated to assess the conversion of the energy source (in this case, heat) into a low-power electrical signal. In this work, we predict the performance of the proposed system through the choice of the best materials and the optimization of the overall geometry.