CsPbBr₃ Quantum Dot Modified In₂O₃ Nanofibers for Effective Detection of ppb-Level HCHO at Room Temperature under UV Illumination

ACS Sensors, Journal Year: 2024, Volume and Issue: 9(11), P. 6040 - 6050

Published: Nov. 13, 2024

The design of high-performance and low-power formaldehyde (HCHO) gas sensors is great interest to researchers for environmental monitoring human health. Herein, In

Language: Английский

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Recent Progress on Perovskite Materials for VOC Gas Sensing

Langmuir, Journal Year: 2024, Volume and Issue: 40(42), P. 21931 - 21956

Published: Oct. 8, 2024

Volatile organic compound (VOC) gases are highly hazardous to human health, and their presence in the breath plays an indispensable role for early diagnosis of various diseases (cancer, renal failure, etc.). In recent times, perovskite materials have shown notable performance detection VOC with high accuracy, fast response, recovery time, selectivity, sensitivity, owing unique crystallographic structures excellent optoelectronic properties. this Review, we look at reports on perovskite-based sensors sensing toward gases. Here, focus mechanisms two types materials, metal halide oxide perovskites, explain differences crystal structures. We also discuss common preparation methods used by researchers synthesis these materials. Further, elucidate important factors influencing sensors, such as doping, defects, morphology, temperature, humidity, light. conclude future prospects challenges related

Language: Английский

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Defects in semiconductors

Journal of Applied Physics, Journal Year: 2024, Volume and Issue: 136(19)

Published: Nov. 20, 2024

Language: Английский

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Interface enhancement effect: SnO2/CsPbBr3 hetero-junction for improve nuclear radiation detection performance and stability

Journal of Applied Physics, Journal Year: 2025, Volume and Issue: 137(3)

Published: Jan. 21, 2025

The CsPbBr3 single crystal detector emerges as a highly promising candidate among semiconductor nuclear radiation detectors, which exhibits an extensive potential application across multitude of critical domains, particularly in physics, energy, medicine, etc. However, the polarization problem has limited and development detectors even posed significant hindrance to their practical implementation. In this paper, pre-designed SnO2/CsPbBr3 hetero-junction was meticulously engineered at interface Ti/CsPbBr3/Ti detector, aiming solve problem. This paper investigates effects on electrical characteristics, detection performance, long-term stability detector. final results demonstrated that had multiple beneficial On one hand, exhibited superior electron extraction efficiency when compared Ti/CsPbBr3 interface. other SnO2 layer played crucial role preventing migration ions from interface, well blocking permeation atmospheric moisture elements surface Consequently, performance enhanced long-stability After enhancement, achieved improved energy resolution 13.59% electric field 6000 V/cm maintained stable approximately 24 ± 5% 3000 for over 12 h. study work provided new perspective enhancing ensuring CsPbBr3-based detectors.

Language: Английский

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Synergistic Interface and Oxygen Vacancy Effects in Cspbbr3/Co3o4 Heterojunctions for Room-Temperature Ethylene Glycol Sensing

Published: Jan. 1, 2025

Language: Английский

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A flexible piezoresistive pressure sensor based on a perovskite MAPbBr₃ nanocrystal-embedded polymer composite

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(28), P. 10494 - 10503

Published: Jan. 1, 2024

The three-dimensional porous structure of the material is adjusted by adding perovskites, and a flexible pressure sensor constructed in “sandwich” to detect human facial expression, pulse, breathing, joint movement.

Language: Английский

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Rapid Discovery of Gas Response in Materials Via Density Functional Theory and Machine Learning

Energy & environment materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 2, 2024

In this study, a framework for predicting the gas‐sensitive properties of materials by combining machine learning and density functional theory (DFT) has been proposed. The rapidly predicts gas response establishing relationships between multisource physical parameters properties. order to prove its effectiveness, perovskite Cs 3 Cu 2 I 5 selected as representative material. before after adsorption various gases have calculated using DFT, then model trained based on these parameters. Previous studies shown that single parameter alone is not enough accurately predict sensitivity materials. Therefore, variety learning, final achieved 92% accuracy in sensitivity. It important note although there no previous reports hydrogen sulfide, resulting H S; it subsequently confirmed experimentally. This method only enhances understanding sensing mechanism, but also universal nature, making suitable development new

Language: Английский

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Perovskite CsPbBr3 quantum dots enhanced In2O3 nanospheres for triethylamine detection at low temperature

Ceramics International, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

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Interface Enhancement Effect: Sno2/Cspbbr3 Hetero-Junction for Improve Nuclear Radiation Detection Performance and Stability

Published: Jan. 1, 2024

Language: Английский

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Konjac glucomannan template based synthesis of porous ZnO nanostructures for enhanced ethanolamine gas detection

Chemical Physics, Journal Year: 2024, Volume and Issue: unknown, P. 112596 - 112596

Published: Dec. 1, 2024

Language: Английский

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