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dc.contributor.authorLiu, Quan
dc.contributor.authorRomero Gómez, Pablo
dc.contributor.authorMantilla Perez, Paola
dc.contributor.authorColodrero, Silvia
dc.contributor.authorToudert, Johann
dc.contributor.authorMartorell Pena, Jordi
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.identifier.citationLiu, Q., Romero, P., Mantilla, P., Colodrero, S., Toudert, J., Martorell, J. A two-resonance tapping cavity for an optimal light trapping in thin-film solar cells. "Advanced energy materials", 20 Setembre 2017, vol. 7, núm. 18, p. 1700356-1-1700356-8.
dc.descriptionThis article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
dc.description.abstractAn optimal photon absorption in thin film photovoltaic technologies can only be reached by effectively trapping the light in the absorber layer provided a considerable portion of the photons is rejected or scattered out of such layer. Here, a new optical cavity is proposed that can be made to have a resonant character at two different nonharmonic frequencies when adjusting the materials or geometry configurations of the partially transmitting cavity layers. Specific configurations are found where a reminiscence of such two fundamental resonances coexists leading to a broadband light trapping. When a PTB7-Th:PC71BM organic cell is integrated within such cavity, a power conversion efficiency of 11.1% is measured. This study also demonstrates that when materials alternative to organics are used in the photoactive cell layer, a similar cavity can be implemented to also obtain the largest light absorption possible. Indeed, when it is applied to perovskite cells, an external quantum efficiency is predicted that closely matches its corresponding internal one for a broad wavelength range.
dc.subjectÀrees temàtiques de la UPC::Energies::Energia solar fotovoltaica
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshPhotovoltaic power generation
dc.subject.lcshSolar cells
dc.subject.otherLight trapping
dc.subject.otherOptical cavity
dc.subject.otherThin-film solar cells
dc.titleA two-resonance tapping cavity for an optimal light trapping in thin-film solar cells
dc.subject.lemacEnergia solar fotovoltaica
dc.subject.lemacCèl·lules solars
dc.contributor.groupUniversitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
local.citation.authorLiu, Q.; Romero, P.; Mantilla, P.; Colodrero, S.; Toudert, J.; Martorell, J.
local.citation.publicationNameAdvanced energy materials

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