Defect Passivation in Perovskite Solar Cells Using Polysuccinimide-Based Green Polymer Additives.

ABSTRACT: Controlling traps and structural defects in perovskite absorber layers is crucial for enhancing both the device efficiency and long-term stability of perovskite solar cells (PSCs). Here we demonstrate the modification of perovskite films by introducing low-cost green polymers, polysuccinimide (PSI) and polyasparagine (PASP), into the perovskite layer. Structural, morphological and optoelectronic properties of polymer-modified perovskite films were probed by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) and UV-Vis spectroscopy. The incorporation of PSI triggers interactions between the polymer and perovskite, leading to the passivation of surface defects at the grain boundaries and improved morphology of perovskite films. This defect passivat

SUBMITTER: Kozlov SS 

PROVIDER: S-EPMC11902386 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature