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Exact analytical solution of a two diode circuit model for organic solar cells showing S-shape using Lambert W-functions

dc.contributor.authorRomero, Beatriz
dc.contributor.authorPozo, Gonzalo del
dc.contributor.authorArredondo, Belén
dc.date.accessioned2014-02-03T13:11:27Z
dc.date.available2014-02-03T13:11:27Z
dc.date.issued2012
dc.identifier.urihttp://hdl.handle.net/10115/12030
dc.description.abstractOrganic solar cells (OSCs) often show a kink, also called S-shape, in the current-voltage (I-V) characteristics, that has been attributed to different physical phenomena such as poor quality of cathode-active layer interface or unbalance charge carrier mobilities. This non-ideal behaviour can be electrically modelled including a second diode, in reverse bias, together with an extra shunt resistance (R-P2) in the traditional solar cell equivalent circuit. In this paper, we solve without approximations the transcendental equation system derived from this modified circuit. We have obtained an analytical expression for I-V curves decoupling the voltage drop in each diode using Lambert W function. This expression has been fitted to experimental data in order to obtain circuital parameters. Simulations varying saturation current of reverse diode (I-02) and R-P2 have been performed in order to study the dependence of S-shape with these parameters.es
dc.language.isoenges
dc.publisherExact analytical solution of a two diode circuit model for organic solar cells showing S-shape using Lambert W-functionses
dc.relationS2009/ESP-1781
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subjectOrganic solar cells; Equivalent circuit; S-shape; W-Lambertes
dc.titleExact analytical solution of a two diode circuit model for organic solar cells showing S-shape using Lambert W-functionses
dc.typeinfo:eu-repo/semantics/articlees
dc.identifier.doi10.1016/j.solener.2012.07.010es
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.subject.unesco3307 Tecnología Electrónicaes
dc.subject.unesco3306.02 Aplicaciones Eléctricases
dc.description.departamentoTecnología Electrónica


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Atribución-NoComercial-SinDerivadas 3.0 EspañaExcept where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España