Interplay of Optical, Morphological, and Electronic Effects of ZnO Optical Spacers in Highly Efficient Polymer Solar Cells
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Otros documentos de la autoría: Ben Diki, Sadok; Duché, David; Gaceur, Meriem; Thakur, Anil K.; Bencheikh Aboura, Fatima; Escoubas, Ludovic; Simon, Jean-Jacques; Guerrero, Antonio; Bisquert, Juan; Garcia-Belmonte, Germà; Bao, Qinye; Fahlmann, Mats; Videlot-Ackermann, Christine; Margeat, Olivier; Ackermann, Jörg
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http://dx.doi.org/10.1002/aenm.201400805 |
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Título
Interplay of Optical, Morphological, and Electronic Effects of ZnO Optical Spacers in Highly Efficient Polymer Solar CellsAutoría
Fecha de publicación
2014-12-29Editor
WileyCita bibliográfica
BEN DIKI, D.; DUCHÉ, D.; GACEURI, M.; THAKUR, A. K.; BENCHEIKH ABOURA, F.; ESCOUBAS, L.; SIMON, J.-J., GUERRERO CASTILLEJO, A.; BISQUERT, J.; GARCÍA BELMONTE, G.; BAO, Q.; FAHLAMN, M.; VIDELOT-ACKERMAN, C.; MARGEAT, O., ACKERMAN, J. Interplay of Optical, Morphological, and Electronic Effects of ZnO Optical Spacers in Highly Efficient Polymer Solar Cells. Advanced Energy Materials, v. 4, n. 18 (December 20104), pp. 1-12Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://onlinelibrary.wiley.com/doi/10.1002/aenm.201400805/abstractVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Optical spacers based on metal oxide layers have been intensively studied in poly(3-hexylthiophene) (P3HT) based polymer solar cells for optimizing light distribution inside the device, but to date, the potential of ... [+]
Optical spacers based on metal oxide layers have been intensively studied in poly(3-hexylthiophene) (P3HT) based polymer solar cells for optimizing light distribution inside the device, but to date, the potential of such a metal oxide spacer to improve the electronic performance of the polymer solar cells simultaneously has not yet be investigated. Here, a detailed study of performance improvement in high efficient polymer solar cells by insertion of solution-processed ZnO optical spacer using ethanolamine surface modification is reported. Insertion of the modified ZnO optical spacer strongly improves the performance of polymer solar cells even in the absence of an increase in light absorption. The electric improvements of the device are related to improved electron extraction, reduced contact barrier, and reduced recombination at the cathode. Importantly, it is shown for the first time that the morphology of optical spacer layer is a crucial parameter to obtain highly efficient solar cells in normal device structures. By optimizing optical spacer effects, contact resistance, and morphology of ZnO optical spacers, poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6diyl] [3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno[3,4-b]thiophenediyl]] (PTB7):[6,6]-phenyl-C71-butyric acid (PC70BM) bulk heterojunction solar cells with conversion efficiency of 7.6% are obtained in normal device structures with all-solution-processed interlayers. [-]
Publicado en
Advanced Energy Materials, v. 4, n. 18 (December 20104)Derechos de acceso
http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/restrictedAccess
info:eu-repo/semantics/restrictedAccess
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