This study examines the influence of magnetic field and temperature on the
transient voltage of a polycrystalline silicon radial junction solar cell in a dynamic regime under multispectral illumination. Radial junction solar cells
represent a major advancement in photovoltaic technologies, as they optimize
light absorption and charge collection efficiency. The focus is on the impact
of the magnetic field and temperature on the decay of transient voltage, which
provides crucial information on recombination processes and the lifetime of
minority carriers. The results reveal that the magnetic field tends to increase
the transient voltage by directly affecting the transient electron density. Indeed, for B > 7 × 10−5 T, the magnetic field prolongs the relaxation time by
increasing the transient voltage amplitude. Additionally, rising temperatures
accelerate (ranging from 290 K to 450 K) recombination processes, thereby
reducing the transient voltage, although this effect is moderated by the presence of a magnetic field. The study highlights the complex interaction between
magnetic field and temperature, with significant impacts on the transient behaviour.

Electrons, Radial Junction, Transient Voltage, Magnetic Field, Operating Temperature