On-line thermal dependence study of the main solar cell electrical photoconversion parameters using low thermal
J J Gallardo1, J Navas, R Alcántara
1Physical Chemistry Department, Science Faculty, University of Cadiz, Campus Universitario de Puerto Real, 11510 Puerto Real (Cádiz), Spain.
Abstract:
This paper presents a non-conventional methodology and an instrumental system to measure the effect of temperature on the photovoltaic properties of solar cells. The system enables the direct measurement of the evolution of open-circuit voltage and short-circuit current intensity in relation to a continuously decreasing temperature. The system uses a high-intensity white light-emitting diode light source with low emissions of radiation in the infrared region of the electromagnetic spectrum, resulting in a reduced heating of the photovoltaic devices by the irradiation source itself. To check the goodness of the system and the methodology designed, several measurements were performed with monocrystalline silicon solar cells, dye-sensitized solar cells, and thin-film amorphous silicon solar cells, showing similar tendencies to those reported in the literature.
