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Water Stable Haloplumbate Modulation for Efficient and Stable Hybrid Perovskite Photovoltaics

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TLDR
In this paper, a new material, water stable haloplumbate (TBA)PbI3, is proposed for interfacial modification, which is formed on the perovskite surface in-situ by tetra-butylammonium iodide(TBAI) treatment.
Abstract
The commercialization of perovskite solar cells is mainly limited by their operational stability. Interlayer modification by thin interface materials between the perovskite and the charge transport layers is one of the most effective methods to promote the efficiency and stability of perovskite devices. However, the commonly used interlayer materials do not meet all the demands, including good film quality, excellent stability, and passivation capability without interfering with the charge transport. In this work, we propose a new material, water stable haloplumbate [TBA]PbI3 for interfacial modification, which is formed on the perovskite surface in-situ by tetra-butylammonium iodide (TBAI) treatment. Benefiting from its passivation effect and robustness, the modified devices result in a power conversion efficiency of 22.90% with excellent environmental and operational stability.

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Journal ArticleDOI

From Structural Design to Functional Construction: Amine Molecules in High‐Performance Formamidinium‐Based Perovskite Solar Cells

TL;DR: In this paper , a systematic review focusing on structural regulation and functional construction of amines in FA-based perovskites is presented, which analyzes the construction mechanism of different structural amines on the functional perovsite crystals.
Journal ArticleDOI

Understanding steric-charge-dependence of conjugated passivators on π-Pb2+ bond strength for efficient all-inorganic perovskite solar cells

TL;DR: In this article , the steric-charge dependence of various π-conjugated pyridine derivatives on electron-donating ability to passivate inorganic CsPbIBr2 perovskite film was investigated.
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Effect of Solvent Residue in the Thin-Film Fabrication on Perovskite Solar Cell Performance.

TL;DR: In this paper , the authors studied the residual solvent effect on two kinds of perovskite films obtained by different annealing processes, namely, hot air annaling and hot bench anneling.
Journal ArticleDOI

Manipulating Ion Migration and Interfacial Carrier Dynamics via Amino Acid Treatment in Planar Perovskite Solar Cells.

TL;DR: In this article , L-phenylalanine (PAA), a typical amino acid, is used to modify the SnO2/MAPbI3 interface to investigate the detailed interplay, and the PAA dipole layer facilitates charge transfer at the interface, enhancing the PCE of devices.
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Binary Hybridization Strategy toward Stable Porphyrinic Zr‐MOF Encapsulated Perovskites as High‐Performance Heterogeneous Photocatalysts for Red to NIR Light‐Induced PET‐RAFT Polymerization

TL;DR: In this article , stable binary nanohybrids based on all-inorganic halide perovskite encapsulated in porphyrinic Zr•MOF (PCN•222) are constructed for photoinduced electron transfer and reversible addition-fragmentation chain transfer (PET‐RAFT) polymerization.
References
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Journal ArticleDOI

High-efficiency solution-processed perovskite solar cells with millimeter-scale grains

TL;DR: A solution-based hot-casting technique is demonstrated to grow continuous, pinhole-free thin films of organometallic perovskites with millimeter-scale crystalline grains that are applicable to several other material systems plagued by polydispersity, defects, and grain boundary recombination in solution-processed thin films.
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Perovskite light-emitting diodes with external quantum efficiency exceeding 20 per cent

TL;DR: In this article, the authors describe visible-light-emitting perovskite LEDs that surpass the quantum efficiency milestone of 20.3 per cent, which is achieved by a new strategy for managing the compositional distribution in the device.
Journal ArticleDOI

The light and shade of perovskite solar cells

TL;DR: The rise of metal halide perovskites as light harvesters has stunned the photovoltaic community and questions on the control of the performance of perovSKite solar cells and on its characterization are being addressed.
Journal ArticleDOI

Halide Perovskite Photovoltaics: Background, Status, and Future Prospects

TL;DR: The fundamentals, recent research progress, present status, and views on future prospects of perovskite-based photovoltaics, with discussions focused on strategies to improve both intrinsic and extrinsic (environmental) stabilities of high-efficiency devices are described.
Journal ArticleDOI

Efficient, stable and scalable perovskite solar cells using poly(3-hexylthiophene)

TL;DR: A double-layered halide architecture for perovskite solar cells enables the use of dopant-free poly(3-hexylthiophene) as a hole-transport material, forming stable and scalable devices with a certified power conversion efficiency of 22.7 per cent.
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