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Modeling large-area solar cells

By: Kippelen, B.; Potscavage, W.J.; Choi, S.;

2010 / IEEE / 978-1-4244-7017-4

Description

This item was taken from the IEEE Conference ' Modeling large-area solar cells ' In this talk we will discuss the modeling of large-area organic solar cells. Degradation of the performance with increased area is observed and analyzed in terms of the power loss density concept. The equivalent circuit model is used to verify that a change in power loss density (or RSA) can have a strong influence on device performance. The limited sheet resistance of ITO is found to be one of the major limiting factors when the area of the cell is increased. The effective series resistance of the ITO film can be minimized by integrating metal grids and the improvement is analyzed using a power loss density analysis. By integrating metal grids onto ITO, the series resistance could be reduced significantly yielding improved performance.