Pathways toward high-performance perovskite solar cells: review of recent advances in organo-metal halide perovskites for photovoltaic applications
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"Pathways toward high-performance pe..." refers background in this paper
...The electrode assembly is contacted by a liquid electrolyte containing a redox couple.(46) In these devices, TiO2 is used to collect and transport the electrons, while the electrolyte acts as a hole conductor....
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16,634 citations
"Pathways toward high-performance pe..." refers methods in this paper
...The first OMHPs employed in PV were used as direct replacements for the dye sensitizers in the DSSCs.23,45 The typical DSSC structure employs a several-micron thick porous TiO2 layer that is coated and penetrated with an absorber dye material....
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...The first known use of OMHP was as a dye in DSSC, which reported a 3% PCE in 2009.(23)...
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...The first OMHPs employed in PV were used as direct replacements for the dye sensitizers in the DSSCs.(23,45) The typical DSSC structure employs a several-micron thick porous TiO2 layer that is coated and penetrated with an absorber dye material....
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9,158 citations
"Pathways toward high-performance pe..." refers background in this paper
...2(a)] was formed by replacing the liquid electrolyte with a solid-state hole conductor.(25,26) This advance...
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...cells evolved from this same structure, with the OMHP materials acting simply as a dye replacement.(25,26) Interest increased when the so-called mesoscopic device structure [Fig....
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...An electrically insulating mesoporous layer allows high VOC to be achieved if there is a lack of sub-band gap and surface electronic states.(26) A variety of...
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...The so-called perovskite fever(24) did not fully bloom until a solid-state cell was developed and devices with ∼10% efficiency were reported in 2012.(25,26) Since then, OMHP-based PV device performance has rapidly progressed, and a best efficiency record of >21% was achieved in late 2015....
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8,427 citations
"Pathways toward high-performance pe..." refers background or methods in this paper
...The reason for this is that single-step solution deposition using DMF and GBL solvents often results in the formation of needle- and spherical-shaped colloidal intermediates.(28,85) To improve the surface morphology of spin-coated perovskite films, several precursor solution additives have been employed to suppress the formation of deleterious intermediates....
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...3(b)] to prepare perovskite solar cells, which has resulted in efficiencies>15%.(28) In a typical two-step solution procedure, a PbI2 seed layer is spin-coated and then converted to MAPbI3 by dipping the substrate into an MAI/isopropanol solution....
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...The process can be well controlled and, consequently, has been extensively used to fabricate high-efficiency devices.(28,56,76,77) The two-step solution method provides a reproducible way to fabricate high-quality perovskite thin films....
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