Unfortunately, the ideas here are overdone, and not that interesting. The end result leaves you wanting more, and considering it was produced by James Cameron, you'd expect a great film viewing experience. Unfortunately the results here lack, and despite a few good moments, it doesn't do anything to really grab your attention. Sanctum is the perfect example of a film that's style over substance, it looks great, but the plot is paper thin, and relies on recycled ideas from previous films in order to create an engaging film. The film is a well made, and there some exciting bits here and there, unfortunately, the material presented here is something we've seen many times before. The present work opens a new avenue for designing 2D/3D perovskite heterojunctions and improving the performance and stability of PSCs.Mediocre action film, Sanctum is a film that had potential of being a great film unfortunately it falls flat, and relies more on clichés than anything.

Simultaneously, the improved device retains 90% of its initial performance after aging for 1000 h in ambient conditions. As a result, a remarkable power conversion efficiency (PCE) of 15.63% is achieved for the carbon-based hole-transport-layer-free PSCs based on 2D/3D heterojunction, which is higher than that of the control 3D device (11.88%). A broad range of experimental characterizations show that the introduction of 2D perovskite improves the energy level alignment with the adjacent carbon electrode and enhances the hydrophobic property of the perovskite sample. The relevant growth process, light absorption ability, energy level regulation, and stability of the samples are systematically investigated. Herein, a 2D perovskite with a spacer cation of 1,4-dimethylphenylene ammonium is grown on 3D perovskite film by the solid-state heat-pressure method.

However, it is difficult to fabricate a 2D/3D perovskite heterojunction with accurate composition and structure through a solution-only process, and the location of the 2D perovskite is also difficult to regulate owing to the uncontrolled cation exchange between organic constituents, which results in mismatched energy level arrangements. The formation of a two-dimensional (2D) perovskite layer on the top of three-dimensional (3D) perovskite has been demonstrated to be effective in reducing interfacial charge recombination and improving the performance and stability of perovskite solar cells (PSCs).

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