Nano-scale smooth surface of the compact-TiO<sub>2</sub> layer <i>via</i> spray pyrolysis for controlling the grain size of the perovskite layer in perovskite solar cells
Methawee Nukunudompanich, Kazuma Suzuki, Keisuke Kameda, Sergei Manzhos, Manabu Ihara
Abstract
Nano-roughness of compact TiO 2 (c-TiO 2 ) fabricated via spray pyrolysis method had a significant effect on the perovskite grain size and solar cell performance. Decreased roughness of c-TiO 2 promoted larger perovskite grain sizes.
Topics & Concepts
Perovskite (structure)Materials scienceGrain sizeLayer (electronics)Spray pyrolysisChemical engineeringNano-PyrolysisNanotechnologyComposite materialThin filmEngineeringPerovskite Materials and ApplicationsConducting polymers and applicationsChalcogenide Semiconductor Thin Films