Two- and three-dimensional (2D/3D) heterojunctions have been widely used to improve the performance of n-type/intrinsic/p-type (NIP) structured perovskite solar cells (PSCs). However, the electron blocking nature of the 2D ligands, such as phenethylammonium (PEA+), on the perovskite surface is not conducive to PSCs with a p-type/intrinsic/n-type (PIN) structure.
In addition to the typical perovskite structure, the perovskite family includes derivatives, such as double, quadruple, and layered perovskites. The above-mentioned characteristics confer perovskite oxides their great compositional and structural flexibility, which enables the use of diverse strategies to manipulate their electronic structure toward high
Figure 1b and Fig. 1c present an excellent correlation between the predicted and reported oxygen vacancy concentrations for both cobalt- and iron-based perovskite oxides, which is evidenced by the
The heterointerfaces between perovskite and charge-transporting layers pose a major limitation to the durability of perovskite solar cells (PSCs), largely due to complex and conflicting chemical
This study proposes a quantitative relationship between the e g occupancy of perovskite oxides and polysulfide catalytic activity, serving as an activity descriptor. LaCoO 3, with a moderate e g occupation (t 2g 5 e g 1.08 ), demonstrates effective polysulfide anchoring and facilitated redox kinetics conversion compared to LaCrO 3 (t 2g 3 e g 0 ) and LaFeO 3 (t 2g 3 e g 2 ),
mentioned simultaneous solar-battery functionality (Figure 1e). Briefly, a 2D perovskite-rGO-PVDF film is sandwiched between a separator (frit) and a transparent collector electrode (here fluorine-doped tin oxide, FTO, see Methods). For energetically favorable transport of
4 天之前· At room temperature, a cubic phase (α phase) is observed when τ is between 0.89 and 1.0. Lower τ values lead to tetragonal (β phase) or orthorhombic (γ phase) formations. Additionally, 2D layered perovskite structures can emerge when greater τ values disrupt the three-dimensional B–X network.
A LaMnO 3 perovskite oxide catalyst prepared by co-precipitation was evaluated for vinyl chloride (VC) oxidation over consecutive catalytic cycles and in steady-state conditions. The LaMnO 3 catalyst exhibited relatively poor catalytic stability and durability, with the amount of chlorinated organic species increasing as catalytic activity decreased. . Physicochemical
Voltage matching and rational design of redox couples enable high solar-to-output electricity efficiency and extended operational lifetime in a redox flow battery integrated
Perovskite oxides have piqued the interest of researchers as potential catalysts in Li-O₂ batteries due to their remarkable electrochemical stability, high electronic and ionic conductivity, and
One of the battery technologies linked to numerous reports of the usage of perovskite-type oxides is the metal–air technology. The operation of a metal–air battery is
Li ion-conducting A-site deficient perovskite solid solution is a group of room-temperature solid state electrolytes (SSEs), and among which, Li 3x La 2/3-x TiO 3 (LLTO) is the most famous for its ultra-high bulk ionic conductivity of about 10 −3 S cm −1 when x = 0.11 [6].However, this compound is not ideal for all-solid-state lithium-ion batteries (ASSLIBs) owing
The linear relationship between optical and electrical properties was presented. Perovskite QDs exhibit excellent application prospects for the (α, β, γ, and X-ray sources) radioluminescent nuclear battery and X-ray imaging
The relation between ion vacancy mobility and hysteresis of perovskite solar cells (PSCs) is investigated by computer simulation. Due to the ion vacancy migration, the hysteresis in PSCs strongly
In the composition of Q 0.1 (FA 0.75 MA 0.25) 0.9 SnI 3, Q is replaced with Na +, K +, Cs +, ethylammonium + (EA +), and butylammonium + (BA +), respectively, and the relationship between actually measured lattice strain and photovoltaic performances is discussed.The lattice strain evaluated by the Williamson-hall plot of X-ray diffraction data
Focusing on storage capacity of perovskite-based rechargeable batteries, the interaction mechanism of lithium ions and halide perovskites are discussed, such as
During the past years, many studies have evaluated recombination in perovskites layers and suggested that defects at the perovskite surface or at grain boundaries as
The relationship between δ in Sm 0.5 Sr 0.5 CoO 3− δ and its electronic structure was revealed as an association between the V o concentration and ORR/OER performance . Both
Therefore, in our review, we first elaborated on the structure/property relationship between compositions of perovskites and their ionic conductivities. We then summarized current issues
Sn-perovskite solar cells are known as narrow band-gap solar cells which is expected to give higher efficiency than Pb perovskite solar cells from the view point of the narrow band gap energy, and is to be useful for the bottom layer for all-perovskite-tandem solar cells. We have already reported 20.4% efficiency for SnPb perovskite solar cells (1-3) and SnGe perovskite solar cells
However, there is still a lack of research on the quantitative relationship between the defect concentration and the adsorptive-catalytic performance of the electrode. In this work, perovskites Sr 0.9 Ti 1− x Mn x O 3− δ (STMn x) (x =
Request PDF | The Relationship between Oxide-Ion Conductivity and Cation Vacancy Order in the Hybrid Hexagonal Perovskite Ba 3 VWO 8.5 | Significant oxide ionic conductivity has recently been
Unraveling the relationship between phenethylammonium-induced 2D phase on the perovskite surface and inverted wide bandgap perovskite solar cell performance 揭示钙钛矿表面苯乙基铵诱导的二维相与倒置宽带隙钙钛矿太阳能电池性能的关系
The structure difference and the associated ion diffusivity are revealed to substantially affect the specific capacity of the perovskite-based lithium-ion battery. Our study
Also, the exploration of the rich diversity of perovskite materials and the relationship between the dimensionality and performance are urgently needed to further promote its application. Here, we prepared a series of perovskite materials with different dimensions, including 1D perovskite C 4 H 20 N 4 PbBr 6, 2D perovskites with different n values (C 4 H 11
Solid-state lithium metal batteries (LMBs) have become increasingly important in recent years due to their potential to offer higher energy density and enhanced safety compared to
However, there is still a lack of research on the quantitative relationship between the defect concentration and the adsorptive-catalytic performance of the electrode. In this work, perovskites Sr 0.9 Ti 1− x Mn x O 3− δ (STMn x) (x = 0.1–0.3) with different oxygen-vacancy concentrations are quantitatively regulated as research models
Unraveling the relationship between the phenethylammonium-induced 2D phase on the perovskite surface and inverted wide bandgap perovskite solar cell performance 揭示钙钛矿表面苯乙基铵诱导的二维相与倒置宽带隙钙钛矿太阳能电池性能之间的关系
Two- and three-dimensional (2D/3D) heterojunctions have been widely used to improve the performance of n-type/intrinsic/p-type (NIP) structure perovskite solar cells (PSCs). However, the electron blocking nature of the 2D ligands,...
In particular, the sandwich joint electrode is developed to ensure practicable integration between an aqueous zinc battery and water-sensitive perovskite solar cells to form
A LaMnO 3 perovskite oxide catalyst prepared by co-precipitation was evaluated for vinyl chloride (VC) oxidation over consecutive catalytic cycles and in steady-state conditions. The LaMnO 3 catalyst exhibited relatively poor catalytic stability and durability, with the amount of chlorinated organic species increasing as catalytic activity decreased. . Physicochemical properties were
To better monitor the gas generated inside the battery, packaging a gas sensor into the battery becomes a vital means for us to gather gas information [24], [25].Nowadays, the most popular gas sensors are primarily made of metal oxides, and operation temperatures exceed 200 °C [26], which is higher than the working temperature of lithium-ion batteries − 20–60 °C [27].
Perovskite oxides have piqued the interest of researchers as potential catalysts in Li-O₂ batteries due to their remarkable electrochemical stability, high electronic and ionic
With the aim to go beyond simple energy storage, an organic–inorganic lead halide 2D perovskite, namely 2- (1-cyclohexenyl)ethyl ammonium lead iodide (in short
The ex-situ XRD patterns further clarify the relationship between the dual-ion (de)intercalation and irreversible phase transition. The diffraction intensity of (220) planes is significantly weakened during the charge-discharge process, meaning that the perovskite structure experiences partial phase transitions (Figs. 4 a and 4 b). Meanwhile
Moreover, perovskites can be a potential material for the electrolytes to improve the stability of batteries. Additionally, with an aim towards a sustainable future, lead-free perovskites have also emerged as an important material for battery applications as seen above.
Perovskite-type batteries are linked to numerous reports on the usage of perovskite-type oxides, particularly in the context of the metal–air technology. In this battery type, oxidation of the metal occurs at the anode, while an oxygen reduction reaction happens at the air-breathing cathode during discharge.
Focusing on storage capacity of perovskite-based rechargeable batteries, the interaction mechanism of lithium ions and halide perovskites are discussed, such as electrochemical evolution, charge transfer, and ions migration. On the one hand, metal halide perovskites are used as electrode for LIBs.
Owing to their good ionic conductivity, high diffusion coefficients and structural superiority, perovskites are used as electrode for lithium-ion batteries. The study discusses role of structural diversity and composition variation in ion storage mechanism for LIBs, including electrochemistry kinetics and charge behaviors.
In various dimensions, low-dimensional metal halide perovskites have demonstrated better performance in lithium-ion batteries due to enhanced intercalation between different layers. Despite significant progress in perovskite-based electrodes, especially in terms of specific capacities, these materials face various challenges.
Their soft structural nature, prone to distortion during intercalation, can inhibit cycling stability. This review summarizes recent and ongoing research in the realm of perovskite and halide perovskite materials for potential use in energy storage, including batteries and supercapacitors.
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