Performance and Electroluminescence Analysis on Reliability and Lifetime of Thin-Film Photovoltaics

The PEARL TF-PV project aims to reduce the cost of electricity produced by thin-film PV power plants, by improving plant reliability, yield, and prediction of overall plant lifetime. To achieve that, large and small thin-film photovoltaic plants will be inspected by using especially electroluminescence imaging. Electroluminescence imaging observes the light emitted by solar cells during the application of a voltage and provides spatially resolved information about a solar cell or module quality. During the project the applicability and understanding of electroluminescence imaging methods to large-scale measurements on thin-film CIGS and CZTS solar cells and modules will be improved with the objective to obtain knowledge about the appearance, behavior and progression of failure mechanisms in thin-film solar cells. The obtained information will be used to increase the long term profitability of thin-film photovoltaic projects by increasing operating yield, reducing operating and maintenance costs, improving accuracy of investment models, and increasing bankability.

The project is supported by the Solar-era.net framework, the Federal Ministry for Economic Affairs and Energy (Förderkennzeichen: 0324193A), and …… It is running over the course of 3 years from 2017 till 2020. The main coordinator is the Forschungszentrum Jülich.