Blue-Emitting CsPbBr₃ Nanocrystals: Synthesis Progress and Bright Photoluminescence

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 26, 2025

All-inorganic perovskite (CsPbX3, X = Cl, Br, I) nanomaterials as novel optoelectronic semiconductors have attracted much attention due to their unique photoelectric properties in lighting, display, and photovoltaic applications. Meanwhile, green red light-emitting diodes (LEDs) based on bromine iodine groups developed rapidly, which the high external quantum efficiency (EQE) is close that of current commercial LEDs. However, EQE perovskite-based blue LEDs far behind. Blue are often made by CsPbCl3 CsPb(Cl/Br)3 nanocrystals (NCs) with low photoluminescence (PL) yields. Their phase segregation seriously limits practical The PL peak CsPbBr3 NCs usually located region. In case a strong confinement effect, can be observed from NCs. Therefore, emitting become hot topic. This review focused synthesis, ligand selection, morphology control NCs, microstructure, luminescence, synthesis method were first discussed. addition, influence capping ligands stability indicated. Furthermore, size adjustment also Finally, application existing problems blue-emitting summarized. aims provide new insights into preparation efficient stable design-based manufacturing

Language: Английский

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Defect-Engineered WO_3–x Architectures Coupled with Random Forest Algorithm Enables Real-Time Seafood Quality Assessment

ACS Sensors, Journal Year: 2024, Volume and Issue: 9(8), P. 4196 - 4206

Published: Aug. 3, 2024

Reliable and real-time monitoring of seafood decay is attracting growing interest for food safety human health, while it still a great challenge to accurately identify the released triethylamine (TEA) from complex volatilome. Herein, defect-engineered WO3–x architectures are presented design advanced TEA sensors quality assessment. Benefiting abundant oxygen vacancies, obtained WO2.91 sensor exhibits remarkable TEA-sensing performance in terms higher response (1.9 times), faster time (2.1 lower detection limit (3.2 TEA/NH3 selectivity (2.8 times) compared with air-annealed WO2.96 sensor. Furthermore, definite demonstrates long-term stability anti-interference gases, enabling accurate recognition during halibut (0–48 h). Coupled random forest algorithm 70 estimators, enables prediction storage an accuracy 95%. This work not only provides deep insights into improving gas-sensing by defect engineering but also offers rational solution reliably assessing quality.

Language: Английский

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Unveiling the impact of Se based HTM on BaZrSe3 perovskites solar cell and improving the theoretical efficiency above 32%

Materials Science and Engineering B, Journal Year: 2024, Volume and Issue: 311, P. 117817 - 117817

Published: Nov. 13, 2024

Language: Английский

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Ultrathin 2D/2D ZnIn2S4/La2Ti2O7 nanosheets with Z-scheme heterojunction for enhanced photocatalytic hydrogen evolution

Dalton Transactions, Journal Year: 2024, Volume and Issue: 53(32), P. 13491 - 13502

Published: Jan. 1, 2024

The synergy of a Z-scheme heterojunction and 2D/2D structure enhanced photocatalytic hydrogen evolution performance.

Language: Английский

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Anchoring Perovskite-Like Bi₄Ti₃O₁₂ and Plasmonic Bi on Defect-Rich Yellow TiO_2–x for Enhanced Catalytic Activity toward Degradation of Pollutants upon Visible Light

Langmuir, Journal Year: 2024, Volume and Issue: 40(46), P. 24373 - 24386

Published: Nov. 8, 2024

The efficiency of heterogeneous photocatalytic processes is currently limited due to the fast recombination photocarriers, poor light absorption, and inefficient surface catalytic characteristics. In this study, defect-rich yellow TiO

Language: Английский

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The temperature-controlled optimization of g-C₃N₄ structure significantly enhances the efficiency of photothermal catalytic NO removal

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(11), P. 6539 - 6548

Published: Jan. 1, 2024

The efficiency of photocatalytic NO removal is often constrained by catalyst lifespan and secondary contamination from reaction products.

Language: Английский

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Visual Location of Oxygen Vacancies on Bismuth Titanate Nanosheets with Periodic Quantum Well and Promoting H₂O₂ Photosynthesis

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

Abstract Oxygen vacancy (OV) defect engineering plays a crucial role in enhancing photocatalytic efficiency. However, the direct visual characterization of oxygen vacancies still remains technically limited. Herein, bismuth titanate (Bi 4 Ti 3 O 12 , BTO‐OV) model photocatalyst containing is constructed through density functional theory (DFT) calculations to reveal influence mechanism distinctive periodic quantum well and on charge transfer behavior BTO. Notably, distribution directly observed using low‐dose integrated differential phase contrast‐scanning transmission electron microscopy (iDPC‐STEM), providing evidence for location these BTO‐OV. Furthermore, theoretical calculation results are verified by characterizing photoelectric properties conducting performance tests hydrogen peroxide (H 2 ) photosynthesis. Specifically, BTO‐OV accelerate separation, leading H photosynthesis efficiency reaching 5278 µ m g −1 h which 5 times that original This work offers experimental references improvement mechanism.

Language: Английский

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Tunable capacitive resistance switching with low-power synaptic bionic potential in (1–x)Bi0.88Nd0.12FeO3–xCaBi4Ti4O15 thin films

Journal of Materials Science Materials in Electronics, Journal Year: 2025, Volume and Issue: 36(2)

Published: Jan. 1, 2025

Language: Английский

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Optimizing photocatalytic efficiency of La2Ti2O7 nanoparticles: a comprehensive experimental and theoretical approach

Applied Physics A, Journal Year: 2025, Volume and Issue: 131(2)

Published: Jan. 28, 2025

Language: Английский

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Highly sensitive, selective, and ppb level detection of NO2 gas using SnSe2 micro-flower, SnO2/SnSe2, and Au-SnO2/SnSe2 heterojunctions

Sensors and Actuators B Chemical, Journal Year: 2025, Volume and Issue: unknown, P. 137360 - 137360

Published: Jan. 1, 2025

Language: Английский

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