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Ji S, Yuan X, Liu Z, Zhao L, Zhao K, Zheng J, Zhao J, Wang J. Photo- and Thermal-Induced Ion Migration and Phase Separation in Mn-Doped Two-Dimensional PEA 2PbX 4 Perovskite. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37364060 DOI: 10.1021/acsami.3c04776] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Ion migration and phase separation in perovskite materials have negatively affected the solid-state lighting and display. Studying photo- and thermal-induced degradation is considered as a promising approach to understanding the luminescence mechanism and promoting practical applications. Herein, the Mn-doped two-dimensional PEA2PbX4 (X = Cl, Br, I) microcrystals with changing halogen composition were synthesized by an acid-assisted post-processing strategy. Then, photo- and thermal-induced degradation was studied by using steady-state and time-resolved photoluminescence (PL) spectroscopy. The band edge exciton PL peak of Mn-doped 2D PEA2PbX4 microcrystals was adjusted from 397 to 500 nm. The reduced Mn PL lifetime (1.37 to 0.21 ms) was monitored under ion exchange from Cl to Br to I. The degradation mechanism could be divided into two cases: (i) The halide ion migration in Mn-doped 2D perovskite under continuous illumination was revealed, suggesting that the migration of Cl ions was more accessible than that of Br and I. (ii) The PL redshift and lifetime reduction were observed after annealing at 420 K, which means that thermally induced aggregation of Mn ions resulted in the formation of Mn2+-Mn2+ dimers. In addition, the experimental results indicated that the induced B-site phase separation at high temperature annealing made the mixed perovskite phase of Pb and Mn ultimately transform into pure PEA2PbBr4 and PEA2MnBr4.
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Affiliation(s)
- Sihang Ji
- College of Information Technology, Jilin Engineering Research Center of Optoelectronic Materials and Devices, Jilin Normal University, Siping, Jilin 136000, China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
| | - Xi Yuan
- College of Information Technology, Jilin Engineering Research Center of Optoelectronic Materials and Devices, Jilin Normal University, Siping, Jilin 136000, China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
| | - Zixuan Liu
- College of Information Technology, Jilin Engineering Research Center of Optoelectronic Materials and Devices, Jilin Normal University, Siping, Jilin 136000, China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
| | - Lijia Zhao
- College of Information Technology, Jilin Engineering Research Center of Optoelectronic Materials and Devices, Jilin Normal University, Siping, Jilin 136000, China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
| | - Ke Zhao
- College of Information Technology, Jilin Engineering Research Center of Optoelectronic Materials and Devices, Jilin Normal University, Siping, Jilin 136000, China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
| | - Jinju Zheng
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo 315211, China
| | - Jialong Zhao
- School of Physical Science and Technology, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Guangxi University, Nanning 530004, China
| | - Jin Wang
- College of Information Technology, Jilin Engineering Research Center of Optoelectronic Materials and Devices, Jilin Normal University, Siping, Jilin 136000, China
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Wang M, Lyu J, Qin X, Yang SW, Liu X, Xu GQ. Direct Electron Transfer Enables Highly Efficient Dual Emission Modes of Mn 2+-Doped Cs 2Na 1-xAg xBiCl 6 Double Perovskites. J Phys Chem Lett 2022; 13:9429-9434. [PMID: 36194501 DOI: 10.1021/acs.jpclett.2c02694] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Double perovskites with bright emission, low toxicity, and excellent stability have drawn considerable attention. Herein, we report the hydrothermal synthesis of Mn2+-doped Cs2Na1-xAgxBiCl6 double perovskites that exhibit dual emission modes. Introducing Ag+ ions to Cs2NaBiCl6 samples enables a bright self-trapped exciton (STE) emission in orange-red color, whereas Mn2+ dopants induce a yellow-orange emission. Importantly, Mn2+ doping into Cs2Na1-xAgxBiCl6 double perovskites with an indirect bandgap enables a high photoluminescence quantum yield of 49.52 ± 2%. Density functional theory calculations reveal that bringing Ag+ ions into Cs2NaBiCl6 can localize wave function to the [AgCl6]5- octahedron and convert dark transitions to bright STE transitions. Moreover, the 3d orbitals of Mn2+ dopants hybridize with Bi-6p and Cl-3p orbitals at the conduction band minimum, resulting in direct electron transfer from the host to Mn2+ and a significant increase in photoluminescence efficiency. These results shed light on the optical physical process of Mn2+-doped systems, providing useful information for further improvement of the photoluminescence efficiency of double perovskites.
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Affiliation(s)
- Min Wang
- Department of Chemistry, National University of Singapore, 117543Singapore
| | - Jing Lyu
- Department of Chemistry, National University of Singapore, 117543Singapore
| | - Xian Qin
- Department of Chemistry, National University of Singapore, 117543Singapore
| | - Shuo-Wang Yang
- Institute of High Performance Computing, Agency for Science, Technology and Research, 1 Fusionopolis Way, # 16-16 Connexis, 138632Singapore
| | - Xiaogang Liu
- Department of Chemistry, National University of Singapore, 117543Singapore
| | - Guo Qin Xu
- Department of Chemistry, National University of Singapore, 117543Singapore
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3
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Zhao HB, Liao JF, Teng Y, Chen HY, Kuang DB. Inorganic Copper-Based Halide Perovskite for Efficient Photocatalytic CO 2 Reduction. ACS APPLIED MATERIALS & INTERFACES 2022; 14:43354-43361. [PMID: 36123166 DOI: 10.1021/acsami.2c12695] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In view of the toxicity of the Pb element, exploring eco-friendly Pb-free halide perovskites with excellent photoelectric properties is of great research and practical application significance. Herein, copper-based halide perovskite CsCuCl3 and the corresponding Br--substituted sample (CsCuCl2Br) are designed and explored as the catalysts for photocatalytic CO2 reduction for the first time. A facile antisolvent recrystallization process with pre-prepared single crystals as the precursor is employed to controllably synthesize CsCuCl3 and CsCuCl2Br microcrystals (MCs). The electronic structure and charge transfer property analysis by theoretical and experimental investigation reveal that CsCuCl3 possesses a satisfying bandgap (1.92 eV) and conduction band minimum (CBM) to harvest the sunlight and drive the conversion of CO2 to CH4 and CO. The Br- substitution can not only narrow the bandgap but also facilitate the transportation of charge carriers. Thus, a total electron consumption rate of 44.71 μmol g-1 h-1 is achieved for CsCuCl2Br MCs, which is much better than that of same-sized CsPbBr3 microcrystals or even better than many perovskite nanocrystal photocatalysts. This study suggests that Cu-based perovskites can serve as promising candidates for artificial photosynthesis or other photocatalytic applications, which may propose a new thought to construct lead-free, low-cost photocatalysts.
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Affiliation(s)
- Hai-Bing Zhao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Jin-Feng Liao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Yuan Teng
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Hong-Yan Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Dai-Bin Kuang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, P. R. China
- School of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, People's Republic of China
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4
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Bai X, Meng L, Zhou N, Zheng J, Yu XF, Chu PK, Xiao JJ, Zou B, Li J. In situ preparation of Mn-doped perovskite nanocrystalline films and application to white light emitting devices. J Colloid Interface Sci 2022; 606:1163-1169. [PMID: 34487935 DOI: 10.1016/j.jcis.2021.08.068] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 08/08/2021] [Accepted: 08/09/2021] [Indexed: 11/30/2022]
Abstract
Mn-doped perovskite nanocrystals have promised new optoelectronic applications due to their unique material properties. In the present study, Mn-doped perovskite nanocrystalline films were prepared in situ in a polymer matrix. The Mn-doped perovskite nanocrystals (PNCs) had good crystallinity and uniform size/spatial distributions in the polymer film. Bright dual-color emission and the long lifetime of the excited state of the dopant were observed from the host exciton and the Mn2+ dopant, respectively. Furthermore, magnetism was observed in the optimal Mn2+ concentration, implying that magnetic coupling was achieved in the Mn-doped perovskite lattice. The Mn-doped perovskite films also showed superior stability against moisture. To demonstrate the practicality of this composite film, a white light emitting device was fabricated by combining a single composite film with a blue light emitting diode; the device showed a high-quality white light emission, and the Commission Internationale De L'Eclairage (CIE) chromaticity coordinate of the white light emitting diode (WLED) (0.361, 0.326) was close to the optimal white color index. In this single-layer WLED, self-absorption among the luminous multilayers in traditional white light emitting diodes can be avoided. The study findings revealed that Mn-doped perovskite nanocrystalline films have many exciting properties, which bodes well for the fundamental study and design of high-performance optoelectronic devices.
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Affiliation(s)
- Xianwei Bai
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Lingqiang Meng
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Ni Zhou
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Jinju Zheng
- Institute of Materials, Ningbo University of Technology, Ningbo 315211, China
| | - Xue-Feng Yu
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Jun-Jun Xiao
- College of Electronic and Information Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Bingsuo Zou
- Center on Nano-energy Research, School of Physical Science and Technology, and Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China.
| | - Jia Li
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
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5
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Hu K, Hu Y, Li T, Qiao F, Chen Y, Han J, Lee L, Ali G, Xie Y. Hexamethyldisilazane-Assisted Ambient Condition Mn2+ Doping Perovskite Nanocrystals. CrystEngComm 2022. [DOI: 10.1039/d1ce01548f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Doping Mn2+ ions into lead halide perovskite (LHP) nanocrystals (NCs) has attracted great attention in the optoelectronic fields due to the stability enhancement and unique dual-color emission characteristics arising from...
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6
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Li M, Xu J, Song Y, Chen F. Enhance luminescence or change morphology: effect of the doping method on Cu 2+-doped CsPbBr 3 perovskite nanocrystals. CrystEngComm 2022. [DOI: 10.1039/d2ce01302a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of Cu2+ on CsPbBr3 nanocrystals is compared between the hot-injection method and postsynthetic cation-exchange reaction.
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Affiliation(s)
- Meng Li
- Resources and Environment Innovation Institute, Shandong Jianzhu University, Jinan, 250101, P. R. China
| | - Jingtao Xu
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, P. R. China
| | - Yang Song
- Resources and Environment Innovation Institute, Shandong Jianzhu University, Jinan, 250101, P. R. China
| | - Feiyong Chen
- Resources and Environment Innovation Institute, Shandong Jianzhu University, Jinan, 250101, P. R. China
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Ji S, Yuan X, Zheng J, Cao S, Ji W, Li H, Zhao J, Zhang H. Near-unity blue-orange dual-emitting Mn-doped perovskite nanocrystals with metal alloying for efficient white light-emitting diodes. J Colloid Interface Sci 2021; 603:864-873. [PMID: 34242990 DOI: 10.1016/j.jcis.2021.06.138] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 06/19/2021] [Accepted: 06/23/2021] [Indexed: 11/30/2022]
Abstract
The tunable dual-color emitting Mn2+ doped CsPbCl3-xBrx nanocrystals (NCs) with near-unity photoluminescence quantum yield (PL QY) were synthesized through post-treatment of metal bromide at room temperature for fabrication of efficient warm white light-emitting diodes (WLEDs). Especially, the CdBr2 treated blue-orange emitting Mn doped NCs with various Mn/Pb molar feed ratios exhibit higher PL QY of 97% and longer Mn2+ PL lifetime of 0.9 ms. It is surprisingly found that the X-ray diffraction peak at 31.9° is almost not changed with increasing Br composition, meaning formation of metal alloying due to incorporation of amount of divalent cation in NCs. The strong and stable Mn2+ PL at temperature ranging from 80 K to 360 K are revealed and the temperature-dependent energy transfer efficiencies in Mn2+ doped CsPbCl1.5Br1.5 NCs are obtained. The enhancement mechanism of Mn2+ PL QY was attributed to improved energy transfer from exciton to Mn2+ d-d transition and suppressed defect state density after post-treatment. The efficient warm WLEDs with color rendering index of 90 and luminous efficacy of 92 lm/W at 10 mA were fabricated by combining blue-orange dual-emitting Mn2+ doped CsPbCl3-xBrx@SiO2 and green emissive CsPbBr3@SiO2 NCs with violet GaN chips.
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Affiliation(s)
- Sihang Ji
- College of Physics, Jilin University, Changchun 130023, China; Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China; School of Physical Science and Technology, MOE Key Lab of New Processing Technology for Nonferrous Metals and Materials, Guangxi University, Nanning 530004, China
| | - Xi Yuan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China.
| | - Jinju Zheng
- Institute of Materials, Ningbo University of Technology, Ningbo 315016, China
| | - Sheng Cao
- School of Physical Science and Technology, MOE Key Lab of New Processing Technology for Nonferrous Metals and Materials, Guangxi University, Nanning 530004, China
| | - Wenyu Ji
- College of Physics, Jilin University, Changchun 130023, China
| | - Haibo Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
| | - Jialong Zhao
- School of Physical Science and Technology, MOE Key Lab of New Processing Technology for Nonferrous Metals and Materials, Guangxi University, Nanning 530004, China.
| | - Hanzhuang Zhang
- College of Physics, Jilin University, Changchun 130023, China.
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Ricciarelli D, Meggiolaro D, Belanzoni P, Alothman AA, Mosconi E, De Angelis F. Energy vs Charge Transfer in Manganese-Doped Lead Halide Perovskites. ACS ENERGY LETTERS 2021; 6:1869-1878. [PMID: 35059501 PMCID: PMC8763376 DOI: 10.1021/acsenergylett.1c00553] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 04/20/2021] [Indexed: 05/03/2023]
Abstract
Mn-doped lead halide perovskites exhibit long-lived dopant luminescence and enhanced host excitonic quantum yield. The contention between energy and charge transfer in sensitizing dopant luminescence in Mn-doped perovskites is investigated by state-of-the-art DFT calculations on APbX3 perovskites (X = Cl, Br, and I). We quantitatively simulate the electronic structure of Mn-doped perovskites in various charge and spin states, providing a structural/mechanistic analysis of Mn sensitization as a function of the perovskite composition. Our analysis supports both energy- and charge-transfer mechanisms, with the latter probably preferred in Mn:CsPbCl3 due to small energy barriers and avoidance of spin and orbital restrictions. An essential factor determining the dopant luminescence quantum yield in the case of charge transfer is the energetics of intermediate oxidized species, while bandgap resonance can well explain energy transfer. Both aspects are mediated by perovskite host band edge energetics, which is tuned in turn by the nature of the halide X.
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Affiliation(s)
- Damiano Ricciarelli
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, Perugia 06123, Italy
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce
di Sotto 8, Perugia 06123, Italy
| | - Daniele Meggiolaro
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce
di Sotto 8, Perugia 06123, Italy
| | - Paola Belanzoni
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, Perugia 06123, Italy
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce
di Sotto 8, Perugia 06123, Italy
| | - Asma A. Alothman
- Chemistry
Department, College of Science, King Saud
University, Riyadh 11451, Saudi Arabia
| | - Edoardo Mosconi
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce
di Sotto 8, Perugia 06123, Italy
- Chemistry
Department, College of Science, King Saud
University, Riyadh 11451, Saudi Arabia
| | - Filippo De Angelis
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, Perugia 06123, Italy
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce
di Sotto 8, Perugia 06123, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy
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9
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Jiang H, Cui S, Chen Y, Zhong H. Ion exchange for halide perovskite: From nanocrystal to bulk materials. NANO SELECT 2021. [DOI: 10.1002/nano.202100084] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Haotian Jiang
- MIIT Key Laboratory for Low‐Dimensional Quantum Structure and Devices School of Materials Science and Engineering Beijing Institute of Technology Beijing China
| | - Siqi Cui
- MIIT Key Laboratory for Low‐Dimensional Quantum Structure and Devices School of Materials Science and Engineering Beijing Institute of Technology Beijing China
| | - Yu Chen
- MIIT Key Laboratory for Low‐Dimensional Quantum Structure and Devices School of Materials Science and Engineering Beijing Institute of Technology Beijing China
| | - Haizheng Zhong
- MIIT Key Laboratory for Low‐Dimensional Quantum Structure and Devices School of Materials Science and Engineering Beijing Institute of Technology Beijing China
- Beijing Institute of Technology Shenzhen Research Institute Nanshan District Shenzhen China
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10
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Huang D, Ouyang Q, Liu B, Chen B, Wang Y, Yuan C, Xiao H, Lian H, Lin J. Mn 2+/Mn 4+ co-doped LaM 1-xAl 11-yO 19 (M = Mg, Zn) luminescent materials: electronic structure, energy transfer and optical thermometric properties. Dalton Trans 2021; 50:4651-4662. [PMID: 33725060 DOI: 10.1039/d1dt00153a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Dual-emitting manganese ion doped LaM1-xAl11-yO19 (M = Mg, Zn) phosphors were prepared by substituting Zn2+/Mg2+ with Mn2+ and replacing Al3+ with Mn4+. The LaM1-xAl11-yO19:xMn2+,yMn4+ phosphors show a narrow green emission band of the Mn2+ ions at 514 nm and a red emission band of the Mn4+ ions at 677 nm. In addition, the thermal stability of luminescence shows that the response of Mn2+ and Mn4+ to the temperature is obviously different in LaMAl11O19, implying the potential of the prepared phosphors as optical thermometers. The decay lifetime of Mn4+ was changed with temperature due to the different fluorescence intensity ratios of Mn2+ and Mn4+, and a dual-mode optical temperature-sensing mechanism was studied in the temperature range of -50-200 °C. The maximum relative sensitivities (Sr) are calculated as 3.22 and 3.13% K-1, respectively. The unique optical thermometric features demonstrate the application potential of LaMAl11O19:Mn2+,Mn4+ in optical thermometry.
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Affiliation(s)
- Dayu Huang
- Key Laboratory of In-Fiber Integrated Optics, Ministry Education of China, and College of Physics and Opotoelectronic Engineering, Harbin Engineering University, Harbin 150001, China.
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11
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Zhang J, Zheng Y, Liu G, Ma Y, Gong L, Guan R, Cui X, Yan J, Zhao J, Yang J. Pressure-Engineered Optical and Charge Transport Properties of Mn 2+/Cu 2+ Codoped CsPbCl 3 Perovskite Nanocrystals via Structural Progression. ACS APPLIED MATERIALS & INTERFACES 2020; 12:48225-48236. [PMID: 33030885 DOI: 10.1021/acsami.0c15068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work, compared with the corresponding pure CsPbCl3 nanocrystals (NCs) and Mn2+-doped CsPbCl3 NCs, Mn2+/Cu2+-codoped CsPbCl3 NCs exhibited improved photoluminescence (PL) and photoluminescence quantum yields (PL QYs) (57.6%), prolonged PL lifetimes (1.78 ms), and enhanced thermal endurance (523 K) as a result of efficient Mn2+ doping (3.66%) induced by the addition of CuCl2. Furthermore, we applied pressure on Mn2+/Cu2+-codoped CsPbCl3 NCs to reveal that a red shift of photoluminescence followed by a blue shift was caused by band gap evolution and related to the structural phase transition from cubic to orthorhombic. Moreover, we also found that under the preheating condition of 523 K, such phase transition exhibited obvious morphological invariance, accompanied by significantly enhanced conductivity. The pressure applied to the products treated with high temperature enlarged the electrical difference and easily intensified the interface by closer packaging. Interestingly, defect-triggered mixed ionic and electronic conducting (MIEC) was observed in annealed NCs when the applied pressure was 2.9 GPa. The pressure-dependent ionic conduction was closely related to local nanocrystal amorphization and increased deviatoric stress, as clearly described by in situ impedance spectra. Finally, retrieved products exhibited better conductivity (improved by 5-6 times) and enhanced photoelectric response than those when pressure was not applied. Our findings not only reveal the pressure-tuned optical and electrical properties via structural progression but also open up the promising exploration of more amorphous all-inorganic CsPbX3-based photoelectric applications.
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Affiliation(s)
- Junkai Zhang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000, China
- United Laboratory of High Pressure Physics and Earthquake Science, Institute of Earthquake Forecasting, China Earthquake Administration, Beijing 100036, China
| | - Yuzhu Zheng
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000, China
| | - Guangtao Liu
- Innovation Center for Computational Physics Methods and Software & State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
| | - Yanzhang Ma
- Department of Mechanical Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Lei Gong
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000, China
| | - Renquan Guan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000, China
| | - Xiaoyan Cui
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000, China
| | - Jiejuan Yan
- Department of Geological Sciences, Stanford University, Stanford, California 94305, United States
| | - Jialong Zhao
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000, China
- MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials and Guangxi Key Laboratory of Processing for Nonferrous Metals and Featured Materials, School of Physical Science and Technology, Guangxi University, Nanning 530004, China
| | - Jinghai Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000, China
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12
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Chen Y, Liu Y, Hong M. Cation-doping matters in caesium lead halide perovskite nanocrystals: from physicochemical fundamentals to optoelectronic applications. NANOSCALE 2020; 12:12228-12248. [PMID: 32507865 DOI: 10.1039/d0nr02922j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
All-inorganic caesium lead halide perovskite nanocrystals (PeNCs) with different dimensionalities have recently fascinated the research community due to their extraordinary optoelectronic properties including tunable bandgaps over the entire visible spectral region, high photoluminescence quantum yields (PLQYs) close to unity and narrow emission line widths down to 10-20 nm, making them particularly suitable as promising candidates for numerous applications ranging from light-emitting diodes (LEDs), solar cells to scintillators. Despite the considerable progress made in the past six years, the real-world applications of caesium lead halide PeNCs themselves especially in the category of CsPbX3 (X = Cl, Br and I) are still restricted by their labile crystal lattices and downgraded luminescence when exposed to ambient air conditions. Recent experimental and theoretical studies on cation doping have proven to be an effective way to significantly improve the physicochemical properties of cesium lead halide PeNCs, which would have profound implications for a range of applications. In this review, we provide a brief overview of the most recent advances in cation-doped all-inorganic caesium lead halide PeNCs, aimed at developing high-performance and long-term stable optoelectronic and photovoltaic devices, which covers areas from their fundamental considerations of cation doping, controlled synthesis methodology and novel physicochemical properties to the optoelectronic applications with an emphasis on perovskite-based LEDs and solar cells. And finally, some possible directions of future efforts toward this active research field are also proposed.
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Affiliation(s)
- Yameng Chen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. and University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Yongsheng Liu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. and University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Maochun Hong
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. and University of the Chinese Academy of Sciences, Beijing, 100049, China
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13
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Wai RB, Ramesh N, Aiello CD, Raybin JG, Zeltmann SE, Bischak CG, Barnard E, Aloni S, Ogletree DF, Minor AM, Ginsberg NS. Resolving Enhanced Mn 2+ Luminescence near the Surface of CsPbCl 3 with Time-Resolved Cathodoluminescence Imaging. J Phys Chem Lett 2020; 11:2624-2629. [PMID: 32191469 DOI: 10.1021/acs.jpclett.0c00574] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Mn2+ doping of lead halide perovskites has garnered recent interest because it produces stable orange luminescence in tandem with perovskite emission. Here, we observe enhanced Mn2+ luminescence at the edges of Mn2+-doped CsPbCl3 perovskite microplates and suggest an explanation for its origin using the high spatiotemporal resolution of time-resolved cathodoluminescence (TRCL) imaging. We reveal two luminescent decay components that we attribute to two different Mn2+ populations. While each component appears to be present both near the surface and in the bulk, the origin of the intensity variation stems from a higher proportion of the longer lifetime component near the perovskite surface. We suggest that this higher emission is caused by an increased probability of electron-hole recombination on Mn2+ near the perovskite surface due to an increased trap concentration there. This observation suggests that such surface features have yet untapped potential to enhance emissive properties via control of surface-to-volume ratio.
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Affiliation(s)
- Rebecca B Wai
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- STROBE, NSF Science & Technology Center, Berkeley, California 94720, United States
| | - Namrata Ramesh
- Department of Physics, University of California, Berkeley, California 94720, United States
- STROBE, NSF Science & Technology Center, Berkeley, California 94720, United States
| | - Clarice D Aiello
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Jonathan G Raybin
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- STROBE, NSF Science & Technology Center, Berkeley, California 94720, United States
| | - Steven E Zeltmann
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
- STROBE, NSF Science & Technology Center, Berkeley, California 94720, United States
| | - Connor G Bischak
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Edward Barnard
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Shaul Aloni
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - D Frank Ogletree
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Andrew M Minor
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- STROBE, NSF Science & Technology Center, Berkeley, California 94720, United States
| | - Naomi S Ginsberg
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Department of Physics, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Kavli Energy NanoScience Institute, Berkeley, California 94720, United States
- STROBE, NSF Science & Technology Center, Berkeley, California 94720, United States
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14
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Ji S, Yuan X, Cao S, Ji W, Zhang H, Wang Y, Li H, Zhao J, Zou B. Near-Unity Red Mn 2+ Photoluminescence Quantum Yield of Doped CsPbCl 3 Nanocrystals with Cd Incorporation. J Phys Chem Lett 2020; 11:2142-2149. [PMID: 32108473 DOI: 10.1021/acs.jpclett.0c00372] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Although Mn2+ doping in semiconductor nanocrystals (NCs) has been studied for nearly three decades, the near 100% photoluminescence (PL) quantum yield (QY) of Mn2+ emission has never been realized so far. Herein, greatly improved PL QYs of Mn2+ emissions are reported in Mn2+-doped CsPbCl3 NCs with various Mn2+ doping concentrations after CdCl2 post-treatment at room temperature. Specifically, the near-unity QY and near single-exponential decay of red Mn2+ emission peaking at 627 nm in doped CsPbCl3 NCs are obtained for the first time. The temperature dependence of steady-state and time-resolved PL spectra reveals that the CdCl2 post-treatment significantly reduces the nonradiative defect states and enhances the energy transfer from host to Mn2+ ions. Moreover, the Mn2+:CsPbCl3 NCs after CdCl2 post-treatment exhibit robust stability and high PL QYs after multipurification. The results will provide an effective route to obtain doped perovskite NCs with high performance for white lighting emitting diodes.
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Affiliation(s)
- Sihang Ji
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
- Department of Physics, Jilin University, Changchun 130023, China
| | - Xi Yuan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
| | - Sheng Cao
- Center on Nano-energy Research, School of Physical Science and Technology, and Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Wenyu Ji
- Department of Physics, Jilin University, Changchun 130023, China
| | - Hanzhuang Zhang
- Department of Physics, Jilin University, Changchun 130023, China
| | - Yunjun Wang
- Suzhou Xingshuo Nanotech Co., Ltd. (Mesolight), Suzhou 215123, China
| | - Haibo Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
| | - Jialong Zhao
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China
- Center on Nano-energy Research, School of Physical Science and Technology, and Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
| | - Bingsuo Zou
- Center on Nano-energy Research, School of Physical Science and Technology, and Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China
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15
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Ke B, Zeng R, Zhao Z, Wei Q, Xue X, Bai K, Cai C, Zhou W, Xia Z, Zou B. Homo- and Heterovalent Doping-Mediated Self-Trapped Exciton Emission and Energy Transfer in Mn-Doped Cs 2Na 1-xAg xBiCl 6 Double Perovskites. J Phys Chem Lett 2020; 11:340-348. [PMID: 31849228 DOI: 10.1021/acs.jpclett.9b03387] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Double perovskites exhibit low toxicity, intrinsic thermodynamic stability, and small carrier effective mass. Herein, a novel doping route was adopted to incorporate Mn ions into Cs2Na1-xAgxBiCl6 double perovskites for engineering the band gap and tailoring the energy transfer. The as-prepared Cs2Na1-xAgxBiCl6 (0 < x < 1) exhibited excellent photoluminescence and a broad self-trapped exciton (STE) band from 500 to 900 nm, which exhibited an abnormal emission peak blue shift with increasing temperature. For Mn-doped Cs2Na1-xAgxBiCl6, the two photoluminescence (PL) bands from d-d transition emission of Mn ions and STEs were always observed simultaneously in the PL window. The distinct energy-transfer channel from the Mn2+ ion guest to the double-perovskite host resulted in the dominant Mn2+ emission. Our results will be helpful for further understanding the nature of the photophysics of double perovskites.
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Affiliation(s)
- Bao Ke
- School of Materials Science and Engineering, School of Life and Environmental Sciences , Guilin University of Electronic Technology , Guilin 541004 , People's Republic of China
| | - Ruosheng Zeng
- School of Materials Science and Engineering, School of Life and Environmental Sciences , Guilin University of Electronic Technology , Guilin 541004 , People's Republic of China
- School of Physical Science and Technology, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials , Guangxi University , Nanning 530004 , People's Republic of China
| | - Zhuang Zhao
- Synergetic Innovation Center for Quantum Effects and Application, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, School of Physics and Electronics , Hunan Normal University , Changsha 410081 , People's Republic of China
| | - Qilin Wei
- School of Physical Science and Technology, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials , Guangxi University , Nanning 530004 , People's Republic of China
| | - Xiaogang Xue
- School of Materials Science and Engineering, School of Life and Environmental Sciences , Guilin University of Electronic Technology , Guilin 541004 , People's Republic of China
| | - Kun Bai
- School of Materials Science and Engineering, School of Life and Environmental Sciences , Guilin University of Electronic Technology , Guilin 541004 , People's Republic of China
| | - Chunxiao Cai
- Teaching Practice Department , Guilin University of Electronic Technology , Guilin 541004 , People's Republic of China
| | - Weichang Zhou
- Synergetic Innovation Center for Quantum Effects and Application, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, School of Physics and Electronics , Hunan Normal University , Changsha 410081 , People's Republic of China
| | - Zhiguo Xia
- State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials , South China University of Technology , Guangzhou 510641 , People's Republic of China
| | - Bingsuo Zou
- School of Physical Science and Technology, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials , Guangxi University , Nanning 530004 , People's Republic of China
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16
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Wu W, Cong WY, Guan C, Sun H, Yin R, Yu G, Lu YB. Investigation of the Mn dopant-enhanced photoluminescence performance of lead-free Cs 2AgInCl 6 double perovskite crystals. Phys Chem Chem Phys 2020; 22:1815-1819. [PMID: 31808479 DOI: 10.1039/c9cp05236d] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The lead-free double perovskite Cs2AgInCl6 is a potential candidate for LEDs, the photoluminescence performance of which is reinforced greatly by Mn doping. Here, we analyzed the geometric, electronic and photoluminescence properties of Mn-doped Cs2AgInCl6 by means of first-principle calculations. We found that in the interior of Cs2AgInCl6, the Mn dopant formed defect complexes by substituting an Ag atom and generating an Ag vacancy (MnAgVAg) owing to the charge balance and the weak distortion of the metal octahedra. The MnAgVAg defect introduced two defect bands in the forbidden gap, which was contributed predominantly by the 3d orbitals of the Mn2+ ions. The electron transition of the Mn2+ ions from the first excited state to the ground state, i.e., from 4T1 to 6A1 states, gives rise to the PL spectrum that is lower than the bandgap. Therefore, we show that the Mn dopant indeed reinforces the PL performance of Cs2AgInCl6 greatly and is beneficial for its use as an LED material.
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Affiliation(s)
- Wentiao Wu
- School of Space Science and Physics, Shandong University, Weihai 264209, China.
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17
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Singh RK, Som S, Dutta S, Jain N, Kuo MT, Singh J, Kumar R, Chen TM. Rapid synthesis of hybrid methylammonium lead iodide perovskite quantum dots and rich MnI 2 substitution favouring Pb-free warm white LED applications. NANOSCALE ADVANCES 2019; 1:2999-3008. [PMID: 36133598 PMCID: PMC9419008 DOI: 10.1039/c9na00330d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 06/06/2019] [Indexed: 05/15/2023]
Abstract
We present a facile room temperature synthesis of CH3NH3Pb1-x Mn x I3 perovskite quantum dots (PQDs) substituting manganese (Mn2+) at the lead (Pb2+) sites to minimize environmental pollution and make it commercially feasible. By varying the concentration of Mn2+ from 0 to 60%, the PQDs exhibit strong color tunability from red to orange color suggesting successful energy transfer due to Mn2+ inclusion. We observed a high external photoluminescence quantum yield (PLQY) of 98% for unsubstituted CH3NH3PbI3 and >50% for up to 15% Mn2+ substituted PQDs. The average lifetime of PQDs was found to shorten with increasing Mn2+ replacement. We demonstrate a white LED prototype by employing the CH3NH3Pb1-x Mn x I3 PQDs with green QDs on a blue LED chip. The CRI and CCT value varying from 92 to 80 and 5100 K to 2900 K, respectively, indicate the usability of the Mn2+ substituted PQDs as efficient warm white LEDs with a promising CRI and good stability.
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Affiliation(s)
- Rajan Kumar Singh
- Department of Physics, Dr. Harisingh Gour Central University Sagar 470003 M. P. India +91 88635723764 +91 88635731695
- Department of Chemical Engineering, National Taiwan University Taipei Taiwan Republic of China
| | - Sudipta Som
- Department of Chemical Engineering, National Taiwan University Taipei Taiwan Republic of China
| | - Somrita Dutta
- Department of Applied Chemistry, National Chiao Tung University 1001 University Road Hsinchu 30010 Taiwan
| | - Neha Jain
- Department of Physics, Dr. Harisingh Gour Central University Sagar 470003 M. P. India +91 88635723764 +91 88635731695
| | - Mei-Tsun Kuo
- Department of Chemical Engineering, National Taiwan University Taipei Taiwan Republic of China
| | - Jai Singh
- Department of Physics, Dr. Harisingh Gour Central University Sagar 470003 M. P. India +91 88635723764 +91 88635731695
| | - Ranveer Kumar
- Department of Physics, Dr. Harisingh Gour Central University Sagar 470003 M. P. India +91 88635723764 +91 88635731695
| | - Teng-Ming Chen
- Department of Applied Chemistry, National Chiao Tung University 1001 University Road Hsinchu 30010 Taiwan
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18
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Xing K, Yuan X, Wang Y, Li J, Wang Y, Fan Y, Yuan L, Li K, Wu Z, Li H, Zhao J. Improved Doping and Emission Efficiencies of Mn-Doped CsPbCl 3 Perovskite Nanocrystals via Nickel Chloride. J Phys Chem Lett 2019; 10:4177-4184. [PMID: 31291544 DOI: 10.1021/acs.jpclett.9b01588] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
It is challenging to improve the emission efficiency of Mn-doped CsPbCl3 (Mn:CsPbCl3) nanocrystals (NCs) because the excellent optical performances are dependent on high doping efficiency and few defects and traps. Steady-state and time-resolved photoluminescence (PL) spectroscopies were used to investigate the luminescence properties of Mn:CsPbCl3 NCs with different Mn doping levels synthesized in the presence of nickel chloride. The doping efficiency of Mn ions in Mn:CsPbCl3 NCs was greatly enhanced in the presence of NiCl2, and the PL wavelength of Mn2+ ions was tuned from 594 to 638 nm by varying the concentration of dopant Mn from 0.11% to 15.25%. The high emission quantum yields of Mn:CsPbCl3 NCs with orange and red emissions peaked at 600 and 620 nm in hexane were 70% and 39%, respectively. The improvement in doping and emission efficiencies of Mn2+ was attributed to the enhanced formation energies of the Mn doping under the Mn and Ni codoped configuration and the resulting reduction of defects and traps in Mn:CsPbCl3 NCs with incorporation of Ni2+ ions.
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Affiliation(s)
- Ke Xing
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education , Jilin Normal University , Changchun 130103 , China
| | - Xi Yuan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education , Jilin Normal University , Changchun 130103 , China
| | - Yu Wang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education , Jilin Normal University , Changchun 130103 , China
| | - Ji Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education , Jilin Normal University , Changchun 130103 , China
| | - Yunjun Wang
- Suzhou Xingshuo Nanotech Co., Ltd. (Mesolight) , Suzhou 215123 , China
| | - Yi Fan
- State Key Laboratory of Luminescence and Applications , Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences , Changchun 130033 , China
| | - Long Yuan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education , Jilin Normal University , Changchun 130103 , China
| | - Kai Li
- State Key Laboratory of Rare Earth Resource Utilization , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022 , China
| | - Zhijian Wu
- State Key Laboratory of Rare Earth Resource Utilization , Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022 , China
| | - Haibo Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education , Jilin Normal University , Changchun 130103 , China
| | - Jialong Zhao
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education , Jilin Normal University , Changchun 130103 , China
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Ministry of Education , Jilin Normal University , Changchun 130103 , China
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19
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Zhang J, Ji S, Ma Y, Guan R, Wu X, Qu X, Yan B, Zhang D, Zhao J, Yang J. Tunable photoluminescence and an enhanced photoelectric response of Mn 2+-doped CsPbCl 3 perovskite nanocrystals via pressure-induced structure evolution. NANOSCALE 2019; 11:11660-11670. [PMID: 31173625 DOI: 10.1039/c9nr03045j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Mn2+:CsPbCl3 nanocrystals (NCs) were synthesized using a modified one-pot injection method, which exhibits significantly improved thermal stability. For the first time, the pressure-treated optical and structural properties of synthetic Mn2+:CsPbCl3 NCs were further investigated, and their associated intriguing electrical and photoelectric properties were revealed from impedance spectra and photocurrent measurements under compression. The pressure-dependent photoluminescence experienced an initial redshift before 1.7 GPa followed by a continuous blueshift, as evidenced by the bandgap shifts. High-pressure XRD spectra uncovered a cubic-to-orthorhombic structural transition at about 1.1 GPa and subsequent amorphization upon further compression, which was fully reversible. Furthermore, the sample annealing from 340 K drove grain growth and decreased grain boundary resistance at ambient pressure. The compression further decreased the grain boundary barrier and improved the electrical conductivity (up to ∼10-2Ω-1 cm-1) of the thermally annealed Mn2+:CsPbCl3 NC surface. Simultaneous photocurrent enhancement of thermally annealed NCs was also achieved as expected, and reached optimal performance at 0.7 GPa. Strikingly, after the pressure cycling (loading-releasing), the results show that thermally annealed Mn2+:CsPbCl3 NCs gained preservable higher electrical conductivity (∼10 times increase) and an improved photoelectric response compared to the ambient state before compression. This work proves that high pressure is useful for opening the versatility in the structure and properties of metal-halide perovskite nanocrystals leading to a promising way for superior optoelectronic materials-by-design.
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Affiliation(s)
- Junkai Zhang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000, P. R. China.
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20
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Dutta A, Behera RK, Deb S, Baitalik S, Pradhan N. Doping Mn(II) in All-Inorganic Ruddlesden-Popper Phase of Tetragonal Cs 2PbCl 2I 2 Perovskite Nanoplatelets. J Phys Chem Lett 2019; 10:1954-1959. [PMID: 30943721 DOI: 10.1021/acs.jpclett.9b00738] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Doping Mn(II) in inorganic Ruddlesden-Popper phase Cs2PbCl2I2 perovskite nanoplatelets is reported. The host nanostructures were prepared with a calculative protocol taking the exact required composition of Cs(I) and Pb(II) and injecting the preformed mixed oleylammonium chlorides and iodides at optimized reaction temperature. Reactions were optimized with various halides and their mixtures, but the stable phase of the Cs2PbX4 system was obtained only for the chloride-iodide mixed-halide system. Introduction of Mn(II) along with Pb(II), resulted in successful light-emitting doped nanocrystals. Measuring the photoluminescence and the decay lifetimes at room and liquid nitrogen temperatures, the variations in the excitonic, self-trapped, and Mn dopant emission properties were compared with those of the chalcogenide and perovskite nanocrystals.
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Affiliation(s)
- Anirban Dutta
- School of Materials Sciences , Indian Association for the Cultivation of Science , Kolkata 700032 , India
| | - Rakesh Kumar Behera
- School of Materials Sciences , Indian Association for the Cultivation of Science , Kolkata 700032 , India
| | - Sourav Deb
- Inorganic Chemistry Section, Department of Chemistry , Jadavpur University , Kolkata 700032 , India
| | - Sujoy Baitalik
- Inorganic Chemistry Section, Department of Chemistry , Jadavpur University , Kolkata 700032 , India
| | - Narayan Pradhan
- School of Materials Sciences , Indian Association for the Cultivation of Science , Kolkata 700032 , India
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21
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Bai K, Tan R, Ke B, Xue X, Zhao J, Zou B, Zeng R. Room temperature synthesis of Mn-doped Cs3Pb6.48Cl16 perovskite nanocrystals with pure dopant emission and temperature-dependent photoluminescence. CrystEngComm 2019. [DOI: 10.1039/c9ce00428a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report Mn-doped Cs3Pb6.48Cl16 nanocrystals with pure dopant emission synthesized at room temperature.
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Affiliation(s)
- Kun Bai
- School of Materials Science and Engineering
- School of Life and Environmental Sciences
- Guilin University of Electronic Technology
- Guilin 541004
- P. R. China
| | - Rihui Tan
- Department of Basic Teaching
- Guilin Tourism University
- Guilin 541006
- P. R. China
| | - Bao Ke
- School of Materials Science and Engineering
- School of Life and Environmental Sciences
- Guilin University of Electronic Technology
- Guilin 541004
- P. R. China
| | - Xiaogang Xue
- School of Materials Science and Engineering
- School of Life and Environmental Sciences
- Guilin University of Electronic Technology
- Guilin 541004
- P. R. China
| | - Jialong Zhao
- School of Physical Science and Technology
- Guangxi University
- Nanning
- P. R. China
| | - Bingsuo Zou
- School of Physical Science and Technology
- Guangxi University
- Nanning
- P. R. China
| | - Ruosheng Zeng
- School of Materials Science and Engineering
- School of Life and Environmental Sciences
- Guilin University of Electronic Technology
- Guilin 541004
- P. R. China
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22
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Hu Y, Zhang X, Yang C, Li J, Wang L. Fe2+ doped in CsPbCl3 perovskite nanocrystals: impact on the luminescence and magnetic properties. RSC Adv 2019; 9:33017-33022. [PMID: 35529137 PMCID: PMC9073237 DOI: 10.1039/c9ra07069a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 10/01/2019] [Indexed: 11/23/2022] Open
Abstract
All inorganic halide perovskite nanocrystals (NCs) have wider practical applications owing to their good properties, whereas the photoluminescence quantum yield (PLQY) of the purple emissive CsPbCl3 NCs is too low to apply in multi-color displays. In this study, earth-abundant Fe2+ metal ions were successfully incorporated into the lattice of CsPbCl3 NCs with the partial replacement of the sites of Pb2+ ions. The impacts of Fe2+ ions on the luminescence and magnetic properties of CsPbCl3 NCs were studied using photoluminescence spectroscopy (PL), X-ray diffraction spectroscopy (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), and a vibrating sample magnetometer (VSM). CsPb1−xFexCl3 NCs, with x = 0, 0.1, 0.2, and 0.3, were synthesized at 170 °C. It was found that an appropriate amount of Fe2+ doping not only improved the homogeneity of the size of NCs, but also enhanced the PLQY and average PL lifetimes. An obvious hysteresis behavior was observed for the NCs, and there was a significant change in the saturation magnetization value with the increase in the Fe2+ concentration. The CsPb1−xFexCl3 NCs were synthesized and an appropriate amount of Fe2+ doping can enhance PLQY and average PL lifetimes. Meanwhile, an obvious hysteresis behavior has been observed for the NCs.![]()
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Affiliation(s)
- Yue Hu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- Jilin Normal University
- Siping 136000
- China
| | - Xinyue Zhang
- National Demonstration Center for Experimental Physics Education
- Jilin Normal University
- Siping 136000
- China
| | - Chaoqun Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- Jilin Normal University
- Siping 136000
- China
| | - Ji Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- Jilin Normal University
- Siping 136000
- China
- National Demonstration Center for Experimental Physics Education
| | - Li Wang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- Jilin Normal University
- Siping 136000
- China
- National Demonstration Center for Experimental Physics Education
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23
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Wang Y, Cao S, Li J, Li H, Yuan X, Zhao J. Improved ultraviolet radiation stability of Mn2+-doped CsPbCl3 nanocrystals via B-site Sn doping. CrystEngComm 2019. [DOI: 10.1039/c9ce01150a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A facile and effective B-site Sn doping strategy is used to grow Mn2+-doped CsPbCl3 (Mn:CsPbCl3) nanocrystals with enhanced ultraviolet irradiation stability and luminescence properties.
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Affiliation(s)
- Yu Wang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- Jilin Normal University
- Changchun 130103
- China
| | - Sheng Cao
- Center on Nanoenergy Research
- School of Physical Science and Technology
- Guangxi University
- Nanning 530004
- China
| | - Ji Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- Jilin Normal University
- Changchun 130103
- China
| | - Haibo Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- Jilin Normal University
- Changchun 130103
- China
| | - Xi Yuan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- Jilin Normal University
- Changchun 130103
- China
| | - Jialong Zhao
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- Jilin Normal University
- Changchun 130103
- China
- Center on Nanoenergy Research
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