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dc.contributor.authorKirchartz, Thomas
dc.contributor.authorBisquert, Juan
dc.contributor.authorMora-Sero, Ivan
dc.contributor.authorGarcia-Belmonte, Germà
dc.date.accessioned2016-03-23T18:50:39Z
dc.date.available2016-03-23T18:50:39Z
dc.date.issued2015
dc.identifier.issn1463-9076
dc.identifier.issn1463-9084
dc.identifier.urihttp://hdl.handle.net/10234/155245
dc.description.abstractIn the last decade, photovoltaics (PV) has experienced an important transformation. Traditional solar cells formed by compact semiconductor layers have been joined by new kinds of cells that are constituted by a complex mixture of organic, inorganic and solid or liquid electrolyte materials, and rely on charge separation at the nanoscale. Recently, metal organic halide perovskites have appeared in the photovoltaic landscape showing large conversion efficiencies, and they may share characteristics of the two former types. In this paper we provide a general description of the photovoltaic mechanisms of the single absorber solar cell types, combining all-inorganic and hybrid and organic cells into a single framework. The operation of the solar cell relies on a number of internal processes that exploit internal charge separation and overall charge collection minimizing recombination. There are two main effects to achieve the required efficiency, first to exploit kinetics at interfaces, favouring the required forward process, and second to take advantage of internal electrical fields caused by a built-in voltage and by the distribution of photogenerated charges. These principles represented by selective contacts, interfaces and the main energy diagram, form a solid base for the discussion of the operation of future types of solar cells. Additional effects based on ferroelectric polarization and ionic drift provide interesting prospects for investigating new PV effects mainly in the perovskite materials.ca_CA
dc.description.sponsorShipThis work was supported by MINECO of Spain under a project (MAT2013-47192-C3-1-R), and the Helmholtz-Energy-Alliance ‘‘Hybrid-Photovoltaics’’.ca_CA
dc.format.extent21 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherRoyal Society of Chemistryca_CA
dc.relation.isPartOfPhys. Chem. Chem. Phys., 2015, 17, 4007ca_CA
dc.rightsThis journal is © the Owner Societies 2015ca_CA
dc.subjecthalide perovskiteca_CA
dc.subjectelectron injectionca_CA
dc.subjectspace-chargeca_CA
dc.subjectdevicesca_CA
dc.subjectenergyca_CA
dc.subjectperformanceca_CA
dc.subjectinterfaceca_CA
dc.subjectrecombinationca_CA
dc.subjectdepositionca_CA
dc.subjectconversionca_CA
dc.titleClassification of solar cells according to mechanisms of charge separation and charge collectionca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttp://dx.doi.org/10.1039/c4cp05174b
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_CA
dc.relation.publisherVersionhttp://pubs.rsc.org/en/content/articlepdf/2015/cp/c4cp05174bca_CA


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