Functionalized sp Carbon-Conjugated Covalent Organic Frameworks for Interfacial Modulation of Inverted Perovskite Solar Cells.

Interfacial modulation utilizing functional materials is proven to be crucial for obtaining high photovoltaic performance in lead halide perovskite solar cells (PSCs). This study investigates, for the first time, the utilization of a pyrene-based sp carbon-conjugated covalent organic framework (spc-COF) as an interfacial layer in inverted PSCs. Functionalized with cyano (-CN) Lewis base groups, the spc-COF exhibits a dual effect, simultaneously passivating both the NiO and the perovskite layers.

Cefepime Induced Neurotoxicity in Patients With or Without a History of Seizures: A Retrospective Matched Cohort Study.

Cefepime is used for the treatment of nosocomial infections and serves as a carbapenem-sparing agent for treating AmpC inducible bacteria. Cefepime induced neurotoxicity (CIN) is a well-documented adverse effect, although data describing the risk of CIN in patients with a history of seizures (HOS) remains limited. The primary and secondary objectives were to compare the rates of CIN in patients with and without HOS and identify risk factors associated with CIN, respectively.

Understanding the Mechanisms of Methylammonium-Induced Thermal Instability in Mixed-FAMA Perovskites.

Despite a recent shift toward methylammonium (MA)-free lead-halide perovskites for perovskite solar cells, high-efficiency formamidinium lead iodide (FAPbI) devices still often require methylammonium chloride (MACl) as an additive, which evaporates away during the annealing process. In this article, it is shown that the residual MA, however, triggers thermal instability. To investigate the possibility of an optimal concentration of MA that may improve thermal stability, the intrinsic thermal stability of pure FA, FA-rich, MA-rich, and pure MA perovskite films (FAMAPbI, FAMA) is studied.

Electrodeposition of Nonprecious Metal Copper Nanocatalysts on Low-Dimensional Support Materials for Nitrate Reduction Reactions.

Supported nonprecious metal catalysts such as copper (Cu) are promising replacements for Pt-based catalysts for a wide range of energy-related electrochemical reactions. Direct electrochemical deposition is one of the most straightforward and versatile methods to synthesize supported nonprecious metal catalysts. However, further advancement in the design of supported nonprecious metal catalysts requires a detailed mechanistic understanding of the interplay between kinetics and thermodynamics of the deposition phenomena under realistic reaction conditions.