Role of the Selective Contacts in the Performance of Lead Halide Perovskite Solar Cells
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Scholar |
Otros documentos de la autoría: Juarez-Perez, Emilio J.; Wuβler, Michael; Fabregat-Santiago, Francisco; Lakus Wollny, Kerstin; Mankel, Eric; Mayer, Thomas; Jaegermann, Wolfram; Mora-Sero, Ivan
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http://dx.doi.org/10.1021/jz500059v |
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Título
Role of the Selective Contacts in the Performance of Lead Halide Perovskite Solar CellsAutoría
Fecha de publicación
2014-01Editor
American Chemical SocietyCita bibliográfica
JUAREZ-PEREZ, Emilio J., et al. Role of the selective contacts in the performance of lead halide perovskite solar cells. The Journal of Physical Chemistry Letters, 2014, 5.4: 680-685.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://pubs.acs.org/doi/abs/10.1021/jz500059vVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The effect of electron- and hole-selective contacts in the final cell performance of hybrid lead halide perovskite, CH3NH3PbI3, solar cells has been systematically analyzed by impedance spectroscopy. Complete cells ... [+]
The effect of electron- and hole-selective contacts in the final cell performance of hybrid lead halide perovskite, CH3NH3PbI3, solar cells has been systematically analyzed by impedance spectroscopy. Complete cells with compact TiO2 and spiro-OMeTAD as electron- and hole-selective contacts have been compared with incomplete cells without one or both selective contacts to highlight the specific role of each contact. It has been described how selective contacts contribute to enhance the cell FF and how the hole-selective contact is mainly responsible for the high Voc in this kind of device. We have determined that the recombination rate is mainly governed by the selective contacts. This fact has important implication for the future optimization of perovskite solar cells. Finally, we have developed a method to analyze the results obtained, and it has been applied for three different electron-selecting materials: TiO2, ZnO, and CdS. [-]
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J. Phys. Chem. Lett., 2014, 5 (4)Derechos de acceso
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