In this work we present how 3-dimensional ferroelectric domains observed in MAPbI(3) affect the performance of perovskite solar cells. We simulated a 3D system with dimensions of 500 nm x 500 nm x 300 nm, considering domains with 100 nm side length which have been assigned random orientations of the polarization field. Calculations are performed with the simulator TiberCAD using a 3D drift-diffusion model, that simulates the light absorption and charge carrier transport, including the local polarization. We show that the presence of polarization domains have a strong impact on the charge carrier separation, leading to a reduction of electron-hole recombination and current pathways formation at interfaces.
Rossi, D., Auf der Maur, M., Pecchia, A., Di Carlo, A. (2017). Simulations of 3-dimensional ferroelectric domains in perovskite solar cells based on MAPbI(3). In International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD) (pp.21-22). 345 E 47TH ST, NEW YORK, NY 10017 USA : IEEE [10.1109/NUSOD.2017.8009971].
Simulations of 3-dimensional ferroelectric domains in perovskite solar cells based on MAPbI(3)
Rossi, D;Auf der Maur, M.;Pecchia, A;Di Carlo, A
2017-01-01
Abstract
In this work we present how 3-dimensional ferroelectric domains observed in MAPbI(3) affect the performance of perovskite solar cells. We simulated a 3D system with dimensions of 500 nm x 500 nm x 300 nm, considering domains with 100 nm side length which have been assigned random orientations of the polarization field. Calculations are performed with the simulator TiberCAD using a 3D drift-diffusion model, that simulates the light absorption and charge carrier transport, including the local polarization. We show that the presence of polarization domains have a strong impact on the charge carrier separation, leading to a reduction of electron-hole recombination and current pathways formation at interfaces.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
