KNbO photoelectrode for DSSC: a structural, optical and electrical approach.

In this work, we present the potassium niobate (KNbO) nanoparticles as a suitable mesoporous photoelectrode for dye-sensitized solar cells (DSSCs). The KNbO particles were synthesized by the microwave-assisted hydrothermal method using mild conditions and characterized by SEM, XRD, Raman, and UV-Vis diffuse reflectance. The particles presented a pyramidal tower-like shape with an orthorhombic structure and an indirect bandgap of (3.

The Thermomechanical Properties of Thermally Evaporated Bismuth Triiodide Thin Films.

Bismuth triiodide (BiI) has been studied in recent years with the aim of developing lead-free semiconductors for photovoltaics. It has also appeared in X-ray detectors due to the high density of the Bismuth element. This material is attractive as an active layer in solar cells, or may be feasible for conversion into perovskite-like material (MABiI), being also suitable for photovoltaic applications.