Journal Article10.1021/NL403997A
Low-temperature processed electron collection layers of graphene/TiO2 nanocomposites in thin film perovskite solar cells.
Jacob Tse-Wei Wang,James M. Ball,Eva M. Barea,Antonio Abate,Jack A. Alexander-Webber,Jian Huang,Michael Saliba,Iván Mora-Seró,Juan Bisquert,Henry J. Snaith,Robin J. Nicholas +10 more
TL;DR: 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 shows the potential to contribute significantly toward the development of low- cost solar cells.
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Abstract: 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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Citations
The effect of silver nanoparticles/graphene-coupled TiO2 beads photocatalyst on the photoconversion efficiency of photoelectrochemical hydrogen production
TL;DR: A novel configuration of the photoelectrochemical hydrogen production device is demonstrated based on TiO2 beads as the primary photoanode material with the addition of a heterostructure of silver nanoparticles/graphene, which caters to a great improvement in light harvesting efficiency (LHE) but also enhances the charge collection efficiency.
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Rutile TiO2 thin film electrodes with excellent blocking function and optical transparency
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TL;DR: In this paper, a novel facile synthetic procedure is developed to prepare thin (tens of nm) films of TiO2 (rutile) from thin titanium layers on different substrates.
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Hybrid1D/2D Carbon Nanostructure-Incorporated TitaniaPhotoanodes for Perovskite Solar Cells
Aida Amini,Hossein Abdizadeh,Mohammad Reza Golobostanfard +2 more
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TL;DR: In this article, a hybrid TiO2-CNT-graphene mesoporous thinfilm was used as a photoanode in perovskite solar cells, achieving a short-circuit current density of 24.8 mA cm-2.
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Ag/nano-TiO 2 composite compact film for enhanced performance of perovskite solar cells based on carbon counter electrodes
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