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He X, Wu Y, Luo J, Dai X, Song J, Tang Y. First-Principles Study on Janus-Structured Sc 2CX 2/Sc 2CY 2 (X, Y = F, Cl, Br) Heterostructures for Solar Energy Conversion. Molecules 2024; 29:2898. [PMID: 38930962 PMCID: PMC11206758 DOI: 10.3390/molecules29122898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/14/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024] Open
Abstract
Two-dimensional van der Waals heterostructures have good application prospects in solar energy conversion due to their excellent optoelectronic performance. In this work, the electronic structures of Sc2CF2/Sc2CCl2, Sc2CF2/Sc2CBr2, and Sc2CCl2/Sc2CBr2 heterostructures, as well as their properties in photocatalysis and photovoltaics, have been comprehensively studied using the first-principles method. Firstly, both of the three thermodynamically and dynamically stable heterostructures are found to have type-II band alignment with band gap values of 0.58 eV, 0.78 eV, and 1.35 eV. Meanwhile, the photogenerated carriers in Sc2CF2/Sc2CCl2 and Sc2CF2/Sc2CBr2 heterostructures are predicated to follow the direct Z-scheme path, enabling their abilities for water splitting. As for the Sc2CCl2/Sc2CBr2 heterostructure, its photovoltaic conversion efficiency is estimated to be 20.78%. Significantly, the light absorption coefficients of Sc2CF2/Sc2CCl2, Sc2CF2/Sc2CBr2, and Sc2CCl2/Sc2CBr2 heterostructures are enhanced more than those of the corresponding monolayers. Moreover, biaxial strains have been observed to considerably tune the aforementioned properties of heterostructures. All the theoretical results presented in this work demonstrate the application potential of Sc2CX2/Sc2CY2 (X, Y = F, Cl, Br) heterostructures in photocatalysis and photovoltaics.
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Affiliation(s)
- Xin He
- School of Energy Engineering, Huanghuai University, Zhumadian 463000, China; (X.H.); (Y.W.); (J.L.); (X.D.); (J.S.)
- Henan Key Laboratory of Smart Lighting, Huanghuai University, Zhumadian 463000, China
| | - Yanan Wu
- School of Energy Engineering, Huanghuai University, Zhumadian 463000, China; (X.H.); (Y.W.); (J.L.); (X.D.); (J.S.)
| | - Jia Luo
- School of Energy Engineering, Huanghuai University, Zhumadian 463000, China; (X.H.); (Y.W.); (J.L.); (X.D.); (J.S.)
| | - Xianglin Dai
- School of Energy Engineering, Huanghuai University, Zhumadian 463000, China; (X.H.); (Y.W.); (J.L.); (X.D.); (J.S.)
| | - Jun Song
- School of Energy Engineering, Huanghuai University, Zhumadian 463000, China; (X.H.); (Y.W.); (J.L.); (X.D.); (J.S.)
- Henan Key Laboratory of Smart Lighting, Huanghuai University, Zhumadian 463000, China
| | - Yong Tang
- School of Energy Engineering, Huanghuai University, Zhumadian 463000, China; (X.H.); (Y.W.); (J.L.); (X.D.); (J.S.)
- Henan Key Laboratory of Smart Lighting, Huanghuai University, Zhumadian 463000, China
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Ahmed S, Dolui SK. A dual emitting CsPbBr 3/Eu-BDC composite as a ratiometric photoluminescent turn-on probe for aliphatic amine sensing. Dalton Trans 2024; 53:8584-8592. [PMID: 38687325 DOI: 10.1039/d4dt00222a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
The impressive photoluminescence properties of all inorganic cesium lead halide perovskite quantum dots (PeQDs) make them highly intriguing for fluorescence chemosensor applications. Herein, a ratiometric dual emitting perovskite-based sensor was designed by synthesizing fluorescent CsPbBr3 PeQDs in situ within a matrix of Eu-BDC (Eu(III) benzene-1,4-dicarboxylate). The results presented here establish the suggested sensor's quick and selective turn-on PL response to volatile primary aliphatic amine derivatives. In the presence of amines, the designed CsPbBr3/Eu-BDC sensor exhibits an enhancement of the PL signal of CsPbBr3 at 518 nm and the Eu-BDC signal at 615 nm served as a standard for constructing the ratiometric sensing system. Thereby, a visual color change from red to green was observed with the incremental addition of methylamine to the probe. A low detection limit of 0.083 ppm was determined for methylamine. In both the solution and vapor phases, this ratiometric sensor responds to a variety of primary aliphatic amines with very quick and strong fluorescence. Moreover, the sensor was effectively used for monitoring meat spoilage owing to the emission of biogenic amine vapor from meat products.
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Affiliation(s)
- Shahnaz Ahmed
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur, Assam, 784028, India.
| | - Swapan Kumar Dolui
- Department of Chemical Sciences, Tezpur University, Napaam, Tezpur, Assam, 784028, India.
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Shellaiah M, Sun KW, Thirumalaivasan N, Bhushan M, Murugan A. Sensing Utilities of Cesium Lead Halide Perovskites and Composites: A Comprehensive Review. SENSORS (BASEL, SWITZERLAND) 2024; 24:2504. [PMID: 38676122 PMCID: PMC11054776 DOI: 10.3390/s24082504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/10/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024]
Abstract
Recently, the utilization of metal halide perovskites in sensing and their application in environmental studies have reached a new height. Among the different metal halide perovskites, cesium lead halide perovskites (CsPbX3; X = Cl, Br, and I) and composites have attracted great interest in sensing applications owing to their exceptional optoelectronic properties. Most CsPbX3 nanostructures and composites possess great structural stability, luminescence, and electrical properties for developing distinct optical and photonic devices. When exposed to light, heat, and water, CsPbX3 and composites can display stable sensing utilities. Many CsPbX3 and composites have been reported as probes in the detection of diverse analytes, such as metal ions, anions, important chemical species, humidity, temperature, radiation photodetection, and so forth. So far, the sensing studies of metal halide perovskites covering all metallic and organic-inorganic perovskites have already been reviewed in many studies. Nevertheless, a detailed review of the sensing utilities of CsPbX3 and composites could be helpful for researchers who are looking for innovative designs using these nanomaterials. Herein, we deliver a thorough review of the sensing utilities of CsPbX3 and composites, in the quantitation of metal ions, anions, chemicals, explosives, bioanalytes, pesticides, fungicides, cellular imaging, volatile organic compounds (VOCs), toxic gases, humidity, temperature, radiation, and photodetection. Furthermore, this review also covers the synthetic pathways, design requirements, advantages, limitations, and future directions for this material.
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Affiliation(s)
- Muthaiah Shellaiah
- Department of Research and Analytics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai 600077, India; (M.S.); (M.B.)
| | - Kien Wen Sun
- Department of Applied Chemistry, National Yang-Ming Chiao Tung University, Hsinchu 300, Taiwan
| | - Natesan Thirumalaivasan
- Department of Periodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai 600077, Tamil Nadu, India;
| | - Mayank Bhushan
- Department of Research and Analytics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai 600077, India; (M.S.); (M.B.)
| | - Arumugam Murugan
- Department of Chemistry, North Eastern Regional Institute of Science & Technology, Nirjuli, Itanagar 791109, India;
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Konoshchuk NV, Rozovik OP, Koshechko VG, Pokhodenko VD. Effect of CsPbBr3 Content in Mechanochemically Obtained CsPbBr3/h-BN Nanocomposites on Their Photoluminescent Characteristics. THEOR EXP CHEM+ 2023. [DOI: 10.1007/s11237-023-09755-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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Wu W, Zhao C, Hu M, Pan A, Xiong W, Chen Y. CsPbBr 3 perovskite quantum dots grown within Fe-doped zeolite X with improved stability for sensitive NH 3 detection. NANOSCALE 2023; 15:5705-5711. [PMID: 36853801 DOI: 10.1039/d2nr06923g] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
All-inorganic cesium lead halide (CsPbX3, X = Cl, Br and I) perovskite quantum dots (QDs) have received enormous research interest because of their exceptional optoelectronic properties, but their low chemical stability under ambient conditions from inevitable defects restricts their practical applications. In an effort to enhance the stability of QDs, in this study, novel functional nanocomposites were fabricated by encapsulating perovskite QDs with zeolite X doped with iron ions. Focusing on the as-obtained nanocomposites labeled with QDs@Fe/X-n, doping a reasonable amount of Fe3+ ions can tremendously improve the order of perovskite lattices and reduce the halide vacancies. The results of stability improvement in nanocomposites with an optimal Fe3+ load (QDs@Fe/X-3) are presented. After storage in air for 100 days, the emission-peak position of the composites can remain almost unchanged, and the photoluminescence (PL) intensity can reach ∼98% of the original intensity. Additionally, the PL intensity of QDs@Fe/X-3 can decrease immediately when exposing it to a NH3 atmosphere at room temperature. The PL intensity can be linearly varied with a change in the NH3 concentration. The original value of the PL can be rapidly recovered by separating the sample from the NH3 environment. This work enables the QDs@Fe/X composite to be an ideal active material for ammonia sensing.
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Affiliation(s)
- Wan Wu
- Department of Chemistry, School of Chemistry, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an 710049, China.
| | - Chunyu Zhao
- Department of Chemistry, School of Chemistry, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an 710049, China.
| | - Mingyou Hu
- Department of Chemistry, School of Chemistry, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an 710049, China.
| | - Aizhao Pan
- Department of Chemistry, School of Chemistry, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an 710049, China.
| | - Wei Xiong
- Department of Chemistry, School of Chemistry, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an 710049, China.
| | - Yinghao Chen
- Department of Chemistry, School of Chemistry, Xi'an Jiaotong University, Xianning West Road, 28, Xi'an 710049, China.
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Konoshchuk NV, Posudievsky OY, Rozovik OP, Koshechko VG, Pokhodenko VD. Structure and Optical Properties of Mechanochemically Obtained Nanocomposite CsPbBr3/h-BN. THEOR EXP CHEM+ 2023. [DOI: 10.1007/s11237-023-09748-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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Chen X, Yu Y, Yang C, Yin J, Song X, Li J, Fei H. Fabrication of Robust and Porous Lead Chloride-Based Metal-Organic Frameworks toward a Selective and Sensitive Smart NH 3 Sensor. ACS APPLIED MATERIALS & INTERFACES 2021; 13:52765-52774. [PMID: 34702027 DOI: 10.1021/acsami.1c15276] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Organolead halide materials have shown promising optoelectronic properties that are suitable for light-emitting diodes (e.g., strong photoluminescence, narrow emission width, and high charge carrier mobility). However, the vast majority of them have no open porosity or open metal sites for host-guest interactions and are therefore not widely applicable in intrinsic fluorescent sensing of small molecules. Herein, we report a lead chloride-based metal-organic framework (MOF) with high porosity and stability and promising photoluminescent characteristics, performing as a sensitive, selective, and long-term stable fluorescence probe for NH3. For the first time, a homemade dynamic real-time photoluminescence monitoring system was developed, which showed that our haloplumbate-based MOF has an immediate response and an extremely low limit of detection (12 ppm) toward NH3. A variety of experimental characterization and theoretical calculations evidenced that the photoluminescence quenching was ascribed to the coordination between NH3 guests and exposed Pb2+ centers in MOFs. Moreover, a portable on-site smart NH3 detector was designed based on this haloplumbate-MOF using a 3D printer, and the quantitative recovery experiment demonstrated the effective detection of NH3 in the range of 15-150 ppm. This study opens a new pathway to design organolead halide-based MOFs to perform on-site chemical sensing of small molecules and shows their high potential to monitor safety concentrations of NH3 in different industrial sites.
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Affiliation(s)
- Xinfeng Chen
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P. R. China
| | - Yuan Yu
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P. R. China
| | - Chenxiao Yang
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P. R. China
| | - Jinlin Yin
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P. R. China
| | - Xueling Song
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P. R. China
| | - Junjie Li
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P. R. China
| | - Honghan Fei
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, P. R. China
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Liu Y, Li L, Li Q, Zhang X, Lu Z, Lin J, Ma Y, Huang Y, Tang C. Electronic and optical properties of O-doped porous boron nitride: A first principle study. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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