Equivalent Circuit Modeling for a High-Performance Large-Area Organic Photovoltaic Module

Chang-Hyun Kim, Michail Beliatis, Keyur K. Gandhi, Lynn J. Rozanski, Y van Bonnassieux, Gilles Horowitz, S. Ravi P. Silva

Research output: Contribution to journalJournal articleResearchpeer-review


For organic photovoltaics (OPVs) to contribute significantly to energy generation, they need to be scaled to large areas, much like all organic electronics. Therefore, there is a need for the development of a specific model that describes the electrical properties related to the size effects and cell interconnections.We report here on the equivalent circuit models for a high-performance series connected OPV module based on a polymer:fullerene bulkheterojunction formulation. We examine the validity of the effective single cell methodology in the conventional framework and suggest a modified model that includes the net series resistance and additional parasitic leakage conductions. The photocurrent is found to follow the diffusion-limited voltage dependence, for which an empirical treatment enables an improved reproduction of the measurement near the short-circuit point.
Original languageEnglish
JournalIEEE Journal of Photovoltaics
Number of pages6
Publication statusE-pub ahead of print - 2015
Externally publishedYes


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