Perovskite (structure) ≈ Perovskite (structure)
View article: Cesium-containing triple cation perovskite solar cells: improved stability, reproducibility and high efficiency
Cesium-containing triple cation perovskite solar cells: improved stability, reproducibility and high efficiency Open
Today's best perovskite solar cells use a mixture of formamidinium and methylammonium as the monovalent cations. Adding cesium improves the compositions greatly.
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Incorporation of rubidium cations into perovskite solar cells improves photovoltaic performance Open
Improving the stability of perovskite solar cells Inorganic-organic perovskite solar cells have poor long-term stability because ultraviolet light and humidity degrade these materials. Bella et al. show that coating the cells with a water-…
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Organic–Inorganic Perovskites: Structural Versatility for Functional Materials Design Open
Although known since the late 19th century, organic-inorganic perovskites have recently received extraordinary research community attention because of their unique physical properties, which make them promising candidates for application i…
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Quantum dot–induced phase stabilization of α-CsPbI <sub>3</sub> perovskite for high-efficiency photovoltaics Open
Maintaining a stable phase For solar cell applications, all-inorganic perovskite phases could be more stable than those containing organic cations. But the band gaps of the former, which determine the electrical conductivity of these mater…
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Promises and challenges of perovskite solar cells Open
The efficiencies of perovskite solar cells have gone from single digits to a certified 22.1% in a few years’ time. At this stage of their development, the key issues concern how to achieve further improvements in efficiency and long-term s…
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Ruddlesden–Popper Hybrid Lead Iodide Perovskite 2D Homologous Semiconductors Open
The hybrid two-dimensional (2D) halide perovskites have recently drawn significant interest because they can serve as excellent photoabsorbers in perovskite solar cells. Here we present the large scale synthesis, crystal structure, and opt…
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A vacuum flash–assisted solution process for high-efficiency large-area perovskite solar cells Open
Metal halide perovskite solar cells (PSCs) currently attract enormous research interest because of their high solar-to-electric power conversion efficiency (PCE) and low fabrication costs, but their practical development is hampered by dif…
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Highly Dynamic Ligand Binding and Light Absorption Coefficient of Cesium Lead Bromide Perovskite Nanocrystals Open
Lead halide perovskite materials have attracted significant attention in the context of photovoltaics and other optoelectronic applications, and recently, research efforts have been directed to nanostructured lead halide perovskites. Collo…
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Intriguing Optoelectronic Properties of Metal Halide Perovskites Open
A new chapter in the long and distinguished history of perovskites is being written with the breakthrough success of metal halide perovskites (MHPs) as solution-processed photovoltaic (PV) absorbers. The current surge in MHP research has l…
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Efficient luminescent solar cells based on tailored mixed-cation perovskites Open
Researchers developed a perovskite solar cell with high power-conversion efficiency (>20%) and intense electroluminescence yield (0.5%).
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Understanding Degradation Mechanisms and Improving Stability of Perovskite Photovoltaics Open
This review article examines the current state of understanding in how metal halide perovskite solar cells can degrade when exposed to moisture, oxygen, heat, light, mechanical stress, and reverse bias. It also highlights strategies for im…
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New tolerance factor to predict the stability of perovskite oxides and halides Open
Simple and interpretable data-driven descriptor accurately predicts the synthesizability of single and double perovskites.
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Perovskite solar cells with CuSCN hole extraction layers yield stabilized efficiencies greater than 20% Open
Transporter layers improve stability Although perovskite solar cells can have power conversion efficiencies exceeding 20%, they can have limited thermal and ultraviolet irradiation stability. This is in part because of the materials used t…
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Two-Dimensional Hybrid Halide Perovskites: Principles and Promises Open
Hybrid halide perovskites have become the "next big thing" in emerging semiconductor materials, as the past decade witnessed their successful application in high-performance photovoltaics. This resurgence has encompassed enormous and wides…
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Perovskite-perovskite tandem photovoltaics with optimized band gaps Open
Tandem perovskite cells The ready processability of organic-inorganic perovskite materials for solar cells should enable the fabrication of tandem solar cells, in which the top layer is tuned to absorb shorter wavelengths and the lower lay…
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Perovskite Materials for Light‐Emitting Diodes and Lasers Open
Organic–inorganic hybrid perovskites have cemented their position as an exceptional class of optoelectronic materials thanks to record photovoltaic efficiencies of 22.1%, as well as promising demonstrations of light‐emitting diodes, lasers…
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State of the Art and Prospects for Halide Perovskite Nanocrystals Open
Metal-halide perovskites have rapidly emerged as one of the most promising materials of the 21st century, with many exciting properties and great potential for a broad range of applications, from photovoltaics to optoelectronics and photoc…
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Charge-Carrier Mobilities in Metal Halide Perovskites: Fundamental Mechanisms and Limits Open
Perovskite photovoltaic cells have seen a remarkable rise in power conversion efficiencies over a period of only a few years. Much of this performance is underpinned by the favorable charge-carrier mobilities in metal halide perovskites (M…
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A Review of Perovskites Solar Cell Stability Open
In this review, the factors influencing the power conversion efficiency (PCE) of perovskite solar cells (PSCs) is emphasized. The PCE of PSCs has remarkably increased from 3.8% to 23.7%, but on the other hand, poor stability is one of the …
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Constructive molecular configurations for surface-defect passivation of perovskite photovoltaics Open
Optimizing surface passivation Unproductive charge recombination at surface defects can limit the efficiency of hybrid perovskite solar cells, but these defects can be passivated by the binding of small molecules. Wang et al. studied three…
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High Defect Tolerance in Lead Halide Perovskite CsPbBr<sub>3</sub> Open
The formation energies and charge-transition levels of intrinsic point defects in lead halide perovskite CsPbBr3 are studied from first-principles calculations. It is shown that the formation energy of dominant defect under Br-rich growth …
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Thermodynamically stabilized β-CsPbI <sub>3</sub> –based perovskite solar cells with efficiencies >18% Open
Tetragonal phases for perovskite solar cells The power conversion efficiencies (PCEs) of all-inorganic perovskites are lower than those of materials with organic cations. This is in part because these materials have larger bandgaps. The cu…
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Not All That Glitters Is Gold: Metal-Migration-Induced Degradation in Perovskite Solar Cells Open
Perovskite solar cells (PSCs) have now achieved efficiencies in excess of 22%, but very little is known about their long-term stability under thermal stress. So far, stability reports have hinted at the importance of substituting the organ…
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Lead Halide Perovskite Nanocrystals in the Research Spotlight: Stability and Defect Tolerance Open
This Perspective outlines basic structural and optical properties of lead halide perovskite colloidal nanocrystals, highlighting differences and similarities between them and conventional II-VI and III-V semiconductor quantum dots. A detai…
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Grain boundary dominated ion migration in polycrystalline organic–inorganic halide perovskite films Open
Grain boundaries have been demonstrated as the dominating ion migration channels in polycrystalline organic–inorganic halide perovskite films.
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Recombination in Perovskite Solar Cells: Significance of Grain Boundaries, Interface Traps, and Defect Ions Open
Trap-assisted recombination, despite being lower as compared with traditional inorganic solar cells, is still the dominant recombination mechanism in perovskite solar cells (PSCs) and limits their efficiency. We investigate the attributes …
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The rapid evolution of highly efficient perovskite solar cells Open
The latest developments in the efficiency and long-term stability of perovskite solar cells are summarized.
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Mutual Insight on Ferroelectrics and Hybrid Halide Perovskites: A Platform for Future Multifunctional Energy Conversion Open
An insight into the analogies, state‐of‐the‐art technologies, concepts, and prospects under the umbrella of perovskite materials (both inorganic–organic hybrid halide perovskites and ferroelectric perovskites) for future multifunctional en…
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On the application of the tolerance factor to inorganic and hybrid halide perovskites: a revised system Open
Can new hybrid perovskites be predicted using the tolerance factor?
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Extremely efficient internal exciton dissociation through edge states in layered 2D perovskites Open
How perovskites have the edge Two-dimensional Ruddlesden-Popper perovskites form quantum wells by sandwiching inorganic-organic perovskite layers used in photovoltaic devices between organic layers. Blancon et al. show that if the perovski…