Md. Abdul Malek Fahim

Oxidation-Budgeted Design of Lead-Free RbGeI3 Solar Cells: Back-Surface-Field Enhancement, Realistic Loss Budgeting and SHAP Sensitivity From SCAPS-1D Optimization to Manufacturing Tolerances, Benchmarked Against CsGeI3

The rapid rise of lead-halide perovskite solar cells has been tempered by lead toxicity, motivating a search for lead-free absorbers with comparable optoelec- tronics. Rubidium germanium iodide (RbGeI3) offers a direct, tunable bandgap, strong absorption, and improved environment...

Is Wireless Security Ready for the AI Era? Evidence from a Curated Corpus of 130 Studies, 2020–2026

Machine learning (ML) is now central to published radio-link authentication research — and simultaneously the adversary’s standard toolkit. This scoping review classifies 130 curated studies (2020–2026): a 121-study core on ML for wireless-link security or attacks on it (84 defen...

Where a Common-Mode Choke Moves the Carrier Resonance: Cpv-Resolved Sizing for Two-Stage H5 Inverters

Transformerless H5 inverters serve the 5 kW residential photovoltaic (PV) segment, but their common-mode (CM) leakage current follows the rain and humidity-driven parasitic capacitance Cpv — which, to our knowledge, no prior work connects to a resonance-safe choke size. We propos...