Flexible photovoltaics based on perovskite materials.

Flexible perovskite solar cells (FPSCs) have received extensive interest for application in wearable electronic devices owing to their high flexibility, light weight, and compatibility with irregular-shaped electronic devices. The roll-to-roll manufacturing method, which exhibits high capacity for mass production, has enabled significant advancements in FPSCs composition engineering, interface modification, fabrication process optimization, and new charge transport materials. Devices utilizing high-quality perovskite films have achieved a power conversion efficiency (PCE) exceeding 24%.

Inorganic-organic mesoporous hybrid segregators for selective and sensitive extraction of precious elements from urban mining.

This study aimed to develop a highly selective extraction protocol for gold (Au) ions from electronic urban waste (EUW) using simple, low-cost Inorganic-organic mesoporous hybrid segregators. The unique features of mesoporous hybrid segregator architectures are of particular to ensure effective adsorption system in terms of selective and sensitive recovery of Au ions from EUW. The segregator platform featured 3D micrometric, mesocage double-serrated plant-leaf-like γ-AlO sheets with hierarchy surfaces containing tri-modal mesopores interiorly and uniformly arranged toothed edges of ~20-40 and ~15 nm groove width and depth at the exterior surfaces, respectively.

Assessment of Trace Elements in Urban Road Dust of a City in a Border Province Concerning Their Levels, Sources, and Related Health Risks.

Most research studies regarding the contamination of urban road dust (RD) focused on mega cities, but little consideration is given for small cities in border areas. The present work investigated the trace elements content in 16 RD samples of particle size < 63 μm at six areas with different anthropogenic activities in Sakaka city, KSA. The trace elements were analyzed using XRF and ICP-MS.