ABSTRACT: A technique for fast quantitative determination of the different terms contributing to series resistance in a solar cell from electroluminescence (EL) is introduced. A two-dimensional model of the solar cell is presented, which is used to fit the measured luminescence intensities and thereby separate the series resistance contributions of fingers and emitter. First quantitative results of this method for an industrial screen printed monocrystalline silicon solar cell are shown and the influence of lateral diffusion of charge carriers on the measurement is discussed.
Publ. in: Proceedings of the 24th European PV SEC, Hamburg, 21-25 September 2009.