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dc.contributor.authorGarcia-Belmonte, Germà
dc.date.accessioned2014-02-19T07:57:25Z
dc.date.available2014-02-19T07:57:25Z
dc.date.issued2013-01
dc.identifier.citationGARCIA-BELMONTE, Germà. Carrier recombination flux in bulk heterojunction polymer: fullerene solar cells: Effect of energy disorder on ideality factor. Solid-State Electronics, 2013, 79: 201-205.ca_CA
dc.identifier.urihttp://hdl.handle.net/10234/83889
dc.description.abstractEnergy disorder reduces the achievable open-circuit voltage in organic bulk-heterojunction solar cells. Here the effect of disorder on charge carrier recombination flux is numerically modeled. The recombination current follows an exponential dependence on voltage (Fermi level splitting) parameterized by β (inverse of the diode ideality factor), which reduces the power conversion efficiency through lower fill factors. β-Parameter approaches unity (Boltzmann approximation) at room temperature only in the case of weak disorder (σ ≈ 50 meV). For larger disorder values (σ ⩾ 100 meV) usually encountered in real devices, a huge reduction in β (open-circuit voltage, and fill factor) is predicted following a relationship as β ∝ ln σ−1.ca_CA
dc.format.extent4 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherElsevierca_CA
dc.relation.isPartOfSolid-State Electronics, Volume 79, January 2013ca_CA
dc.rights.urihttp://rightsstatements.org/vocab/CNE/1.0/*
dc.subjectOrganic photovoltaicsca_CA
dc.subjectRecombination currentca_CA
dc.subjectEnergy disorderca_CA
dc.subjectIdeality factorca_CA
dc.titleCarrier recombination flux in bulk heterojunction polymer: fullerene solar cells: Effect of energy disorder on ideality factorca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttp://dx.doi.org/10.1016/j.sse.2012.07.018
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_CA
dc.relation.publisherVersionhttp://www.sciencedirect.com/science/article/pii/S0038110112002596ca_CA
dc.type.versioninfo:eu-repo/semantics/submittedVersion


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