We numerically study how the rear n⁺-a-Si:H Back-Surface-Field (BSF) thickness and doping co-determine the performance of a-Si:H(n⁺)/c-Si(n)/a-Si:H(p⁺) silicon heterojunction (SHJ) solar cells. Using a two-diode formalism coupled to TCAD SILVACO-ATLAS drift–diffusion under AM1.5G...
Open access
Research Article10.9734/psij/2025/v29i6912
In the Sahel region, which is characterized by extreme temperatures and energy insecurity, improving thermal comfort in school buildings is a major challenge. This study evaluates the effectiveness of a bio-based construction solution integrated into the envelope of a typical sch...
Open access
Research Article10.9734/psij/2025/v29i6911
Nigeria's diverse geo-climatic zones present varying challenges for satellite communications, particularly at Ku-band frequencies (12-18 GHz). Rainfall height is a critical parameter that directly influences signal propagation and the link margin, as such, must be taken into acco...
Open access
Research Article10.9734/psij/2025/v29i6910
Temporal variation of solar radiation with prevailing meteorological parameters focused on a specific location in the south-west Nigeria to provide detailed information required for climate studies and agricultural activities. Hourly and monthly solar radiation trends were analyz...
Open access
Research Article10.9734/psij/2025/v29i6909
In the present paper, the spin effect in parametric amplification and dispersion characteristics are determined by implementing the Quantum Magnetized Hydrodynamic (QMHD) model. The QMHD model is extended for spin dynamics, and the spin effect is investigated in a n-type InSb se...
Open access
Research Article10.9734/psij/2025/v29i5908
The insulation performance of a wall is an important contributor to the global energy performance of a building. With the results of the study, we intend to help determining suitable thickness and insulation performance of laterite bricks wall in practical applications. The resul...
Open access
Research Article10.9734/psij/2025/v29i5907
This work focuses on a theoretical and numerical and numerical study of the thermal behavior of certain physical parameters of air. The aim is to show the importance of natural convection in heat transfer, based on the contribution of parameters such as Nusselt, Prandt and Reynol...
Open access
Research Article10.9734/psij/2025/v29i5906
The persistent trend of rationing power supply to consumers by the power industry in Nigeria has become a major setback to industrial, social and economic development of the country. This study analysis the viability of protective relay coordination and energy losses in North Cen...
Open access
Research Article10.9734/psij/2025/v29i5905
Spectroscopic techniques such as Raman, UV–Vis, and FTIR generate large datasets that challenge storage, processing, and real-time analysis. Conventional reduction strategies, particularly uniform 1-of-N decimation, often distort narrow peaks and compromise chemically...
Open access
Research Article10.9734/psij/2025/v29i5904
This study explores the usefulness of concentration cells for determining thermodynamic quantities from electromotive force (emf) measurements. The thermodynamic quantities investigated include the Gibbs free energy change, entropy change and enthalpy change. Two different concen...
Open access
Research Article10.9734/psij/2025/v29i5903