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Stability of 2D and quasi-2D perovskite materials and devices

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TLDR
In this article , different 2D and quasi-2D perovskite materials have demonstrated significant improvements in the device stability compared to 3D materials due to their increased hydrophobicity and suppressed ion migration.
Abstract
Abstract Different 2D and quasi-2D perovskite materials have demonstrated significant improvements in the device stability compared to 3D perovskites due to their increased hydrophobicity and suppressed ion migration. However, fundamental investigations of these materials have been scarce and consequently detailed understanding of the processes responsible for experimental phenomena are often lacking despite huge interest in these materials. Even more importantly, there have been a limited number of structure-property studies for different material compositions, and research is generally by trial and error rather than by design. Here we discuss different stability issues in these materials and identify questions which need to be answered to design materials with further stability improvements.

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Shedding light on the moisture stability of halide perovskite thin films

TL;DR: In this paper , a comprehensive review of moisture effects on the halide perovskite film, in particular the moisture-induced degradation mechanism and methods toward enhancing the stability, is discussed.
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Low-dimensional perovskite modified 3D structures for higher-performance solar cells

TL;DR: In this paper , a review of the various structures, properties, and applications of low-dimensional perovskites are discussed, and the combined devices using both LD and 3D components are reviewed on the basis of device design, cell structure, interface charge transfer, energy lever alignment, and synergistic improvement of both efficiency and stability.
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Anti-corrosion strategy to improve the stability of perovskite solar cells.

TL;DR: In this paper , the lifetime of perovskite solar cells from the perspective of corrosion science is discussed, and specific methods to improve device operation stability can be applied to the field of corrosion, which can enrich and expand corrosion science.
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Photogenerated charge transfer in Dion–Jacobson type layered perovskite based on naphthalene diimide

TL;DR: In this paper , a DJ-phase organic-inorganic layered perovskite semiconductors using a naphthalene diimide (NDI) based divalent spacer cation was shown to accept photogenerated electrons from the inorganic layer.
References
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Journal ArticleDOI

Mixed‐Organic‐Cation Perovskite Photovoltaics for Enhanced Solar‐Light Harvesting

TL;DR: This work shows that the goal of extending the optical-absorption onset of perovskite-based photovoltaics further into the red to enhance solar-light harvesting can be reached by using a mixture of formamidinium and methylammonium cations, which leads to an enhanced short-circuit current and thus superior devices to those based on only CH3 NH3 (+).
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Improving efficiency and stability of perovskite solar cells with photocurable fluoropolymers.

TL;DR: It is shown that rapid light–induced free-radical polymerization at ambient temperature produces multifunctional fluorinated photopolymer coatings that confer luminescent and easy-cleaning features on the front side of the devices, while concurrently forming a strongly hydrophobic barrier toward environmental moisture on the back contact side.
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Consensus statement for stability assessment and reporting for perovskite photovoltaics based on ISOS procedures

Mark V. Khenkin, +67 more
- 01 Jan 2020 - 
TL;DR: A consensus between researchers in the field is reported on procedures for testing perovskite solar cell stability, which are based on the International Summit on Organic Photovoltaic Stability (ISOS) protocols, and additional procedures to account for properties specific to PSCs are proposed.
Journal ArticleDOI

In Situ Growth of 2D Perovskite Capping Layer for Stable and Efficient Perovskite Solar Cells

TL;DR: In this paper, a 2D-3D perovskite stacking-layered architecture was designed by in situ growing 2D PEA(2)PbI(4) capping layers on top of 3D PbI film, which drastically improved the stability of PSCs without compromising their high performance.
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Ultrahydrophobic 3D/2D fluoroarene bilayer-based water-resistant perovskite solar cells with efficiencies exceeding 22.

TL;DR: This new approach provides water- and heat-resistant operationally stable PSCs with a record-level PCE, and enhances interfacial hole extraction, suppressing nonradiative carrier recombination and enabling a power conversion efficiency (PCE) >22%, the highest reported for 3D/2D architectures.
Related Papers (5)
Trending Questions (3)
What is the difference in performance between 2D perovskite layers and other materials used in slot dies?

The text does not provide information about the performance difference between 2D perovskite layers and other materials used in slot dies.

What are the different methods to improve the stability of 2D perovskite layer slot dies?

The paper does not mention specific methods to improve the stability of 2D perovskite layer slot dies.

How does the stability of 2D perovskite layer slot dies vary with different fabrication methods?

The paper does not provide specific information about the stability of 2D perovskite layer slot dies with different fabrication methods.