From particles to films: production of Cs₂AgBiBr₆-based perovskite solar cells and enhancement of cell performance via ionic liquid utilization at the TiO₂/perovskite interface

Abstract

BMIMPF6 at the TiO2/perovskite interface resulted in improved crystallinity and increased grain size of the Cs2AgBiBr6 film formed from particles.

Efficient Perovskite Photovoltaics by a Nanostructured Ga2O3 Hole-Blocking Layer

“…Organometallic perovskite solar cells (PSCs) have garnered considerable attention as a very promising and cost-effective photovoltaic technology, primarily because of their competitive performance when compared to silicon solar cells. − Nowadays, n-i-p PCSs have achieved a power conversion efficiency (PCE) of 26.1%. − Perovskite-based photovoltaics are categorized into many classes according to their cell structure, such as typical, planar, mesoscopic, and inverted, as well as the position of their charge-transporting layers. − Thus far, the planar structure has shown the highest verified efficiency. Hence, scientists are generally interested in both conventional (n-i-p) and inverted (p-i-n) planar PSC layouts. − Out of all of the electron transport layers (ETLs), compact and mesoporous titanium dioxide (TiO 2 ) ETLs have demonstrated high efficiency. − Nevertheless, the TiO 2 layer continues to have issues with defect trap levels and low electron mobility, which impede electron transportation and, thus, influence the charge collection capacity …”