From particles to films: production of CsAgBiBr-based perovskite solar cells and enhancement of cell performance ionic liquid utilization at the TiO/perovskite interface.

Herein, CsAgBiBr particles produced by the traditional super-saturation precipitation method were used as precursors to create CsAgBiBr films by the gas-quenching process under ambient atmospheric conditions. These films were utilized as a light-absorbing layer in hole-transporting free perovskite solar cells (PSCs) with carbon electrodes. Furthermore, the incorporation of the 1-butyl-3-methylimidazole hexafluorophosphate (BMIMPF6) ionic liquid (IL) at the metal oxide electron transporting layer/perovskite interface resulted in enhanced crystallinity of the perovskite, forming large perovskite grains of up to 800 nm.

UV/visible light active CuCrO nanoparticle-SnO nanofiber p-n heterostructured photocatalysts for photocatalytic applications.

CuCrO2 nanoparticle decorated SnO2 nanofiber composites have been prepared as novel p-n heterostructured semiconductor photocatalysts for the degradation of organic pollutants in wastewater. The composite structure was achieved via drop casting of various amounts of hydrothermally derived CuCrO2 nanoparticles on electrospun SnO2 nanofibers. The microstructural and morphological features of each semiconductor and the formation of p-n heterojunctions between them were characterized.