Low-temperature processed electron collection layers of graphene/TiO 2 nanocomposites in thin film perovskite solar cells
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Scholar |
Otros documentos de la autoría: Wang, Jacob Tse-Wei; Ball, James M.; Barea, Eva M; Abate, Antonio; Alexander-Webber, Jack A.; Huang, Jian; Saliba, Michael; Mora-Sero, Ivan; Bisquert, Juan; Snaith, Henry J.; Nicholas, Robin J.
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http://dx.doi.org/10.1021/nl403997a |
Metadatos
Título
Low-temperature processed electron collection layers of graphene/TiO 2 nanocomposites in thin film perovskite solar cellsAutoría
Fecha de publicación
2014Editor
American Chemical SocietyISSN
1530-6984; 1530-6992Cita bibliográfica
WANG, Jacob Tse-Wei, et al. Low-temperature processed electron collection layers of graphene/TiO2 nanocomposites in thin film perovskite solar cells. Nano letters, 2014, vol. 14, no 2, p. 724-730.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://pubs.acs.org/doi/abs/10.1021/nl403997aVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The highest efficiencies in solution-processable perovskite-based solar cells have been achieved using an electron collection layer that requires sintering at 500 °C. This is unfavorable for low-cost production, ... [+]
The highest efficiencies in solution-processable perovskite-based solar cells have been achieved using an electron collection layer that requires sintering at 500 °C. This is unfavorable for low-cost production, applications on plastic substrates, and multijunction device architectures. Here we report a low-cost, solution-based deposition procedure utilizing nanocomposites of graphene and TiO2 nanoparticles as the electron collection layers in meso-superstructured perovskite solar cells. The graphene nanoflakes provide superior charge-collection in the nanocomposites, enabling the entire device to be fabricated at temperatures no higher than 150 °C. These solar cells show remarkable photovoltaic performance with a power conversion efficiency up to 15.6%. This work demonstrates that graphene/metal oxide nanocomposites have the potential to contribute significantly toward the development of low-cost solar cells. [-]
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Nano letters, 2014, vol. 14, no 2Derechos de acceso
Copyright © 2013 American Chemical Society
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