RT info:eu-repo/semantics/article
T1 Partial photoluminescence imaging for inspection of photovoltaic cells: Artificial LED excitation and sunlight excitation
A1 Redondo Plaza, Alberto
A1 Ngungu, Victor Ndeti
A1 Gallardo Saavedra, Sara
A1 Morales Aragonés, José Ignacio
A1 Alonso Gómez, Víctor
A1 Obregón, Lilian Johanna
A1 Hernández Callejo, Luis
K1 Renewable energy resources
K1 Energías renovables
K1 Solar energy
K1 Photovoltaic cells
K1 Células solares
K1 Photovoltaic power generation
K1 Energía fotovoltaica
K1 Engineering inspection
K1 Electroluminescence
K1 Photoluminescence
K1 2106.01 Energía Solar
K1 2211.16 Luminiscencia
AB Photovoltaic power is a crucial renewable energy source that has the potential to enhance a city’s sustainability. However, in order to identify the various issues that may occur during the lifespan of a photovoltaic module, solar module inspection techniques are crucial. One valuable technique that is commonly used is luminescence, which captures silicon emissions. This article focuses on a specific luminescence technique called partial photoluminescence. This technique involves illuminating a specific portion of the solar cell surface and recording the luminescence emission generated in the remaining area. This method has been trialed in a laboratory environment, utilizing infrared LEDs as the excitation source. An analysis of the main parameters that affect the technique is provided, where pictures have been taken under varying exposure times ranging from 50 ms to 400 ms, irradiance levels ranging from 200 W/m2 to 1000 W/m2, and a percentage of illuminated cells ranging from 10% to 40%. Furthermore, the experimental device has been modified to generate images utilizing sunlight as the excitation source. Several pictures of damaged cells were taken under an irradiance range of 340 W/m2 to 470 W/m2. The quality of the partial photoluminescence images is comparable to conventional electroluminescence images, but longer exposure times are required.
PB MDPI
SN 1996-1073
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/65840
UL https://uvadoc.uva.es/handle/10324/65840
LA eng
NO Energies, 2023, Vol. 16, Nº. 11, 4531
NO Producción Científica
DS UVaDOC
RD 24-may-2024