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Carrier recombination flux in bulk heterojunction polymer: fullerene solar cells: Effect of energy disorder on ideality factor
dc.contributor.author | Garcia-Belmonte, Germà | |
dc.date.accessioned | 2014-02-19T07:57:25Z | |
dc.date.available | 2014-02-19T07:57:25Z | |
dc.date.issued | 2013-01 | |
dc.identifier.citation | GARCIA-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.uri | http://hdl.handle.net/10234/83889 | |
dc.description.abstract | Energy 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.extent | 4 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Elsevier | ca_CA |
dc.relation.isPartOf | Solid-State Electronics, Volume 79, January 2013 | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/CNE/1.0/ | * |
dc.subject | Organic photovoltaics | ca_CA |
dc.subject | Recombination current | ca_CA |
dc.subject | Energy disorder | ca_CA |
dc.subject | Ideality factor | ca_CA |
dc.title | Carrier recombination flux in bulk heterojunction polymer: fullerene solar cells: Effect of energy disorder on ideality factor | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1016/j.sse.2012.07.018 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | http://www.sciencedirect.com/science/article/pii/S0038110112002596 | ca_CA |
dc.type.version | info:eu-repo/semantics/submittedVersion |
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