North China Electric Power University

Reactive PLD Guides the Transformation to Noncrystalline C‐Ga‐Se‐Cl Films with a Halogen‐Defined Interface for Enhanced Luminescence

ABSTRACT Pulsed laser deposition is known for copying the composition of a target into a thin film. Adding a reactive gas can change the growth process, but the chemistry usually stays close to the target. Using a carbon‑rich environment and a pulsed chlorine source from polyviny...

HydrophobicDilauroyl Peroxide Improves the ElectricalPerformance and Stability of PTAA in both n-i-p andp-i-n Perovskite Solar Cells

Abstract Stability degradation plagues both regular n-i-p and inverted p-i-n perovskite solar cells (PSCs), with the organic hole transport layer (HTL) constituting a key restricting factor. Poly(triarylamine) (PTAA) possesses intrinsic polymer characteristics and excellent therm...

Hydropower Scheduling of Cascaded Reservoirs Using a Hybrid Gurobi–PSO Algorithm

Abstract Optimal operation of short-term power generation solutions for cascade hydropower stations is an important part of current reservoir operation and management. Existing population intelligence optimization algorithms exhibit limitations including susceptibility to the ini...

An Optimized CatBoost Model for Spatiotemporal Prediction of hmF2 in High-Latitude Regions

The peak height of the F2 layer (hmF2) is a key parameter describing the vertical structure of the ionosphere. It is important for high-frequency radio communication planning and space-weather background assessment, particularly at high latitudes. To improve long-term hmF2 predic...