1
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Bayer S, Yin Yu JH, Nagl S. Room temperature synthesis of nanocomposite thin films with embedded Cs 2AgIn 0.9Bi 0.1Cl 6 lead-free double perovskite nanocrystals with long-term water stability, wide range pH tolerance, and high quantum yield. NANOSCALE ADVANCES 2024; 6:3347-3354. [PMID: 38933862 PMCID: PMC11197404 DOI: 10.1039/d4na00233d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 05/12/2024] [Indexed: 06/28/2024]
Abstract
The synthesis of Cs2AgIn0.9Bi0.1Cl6 nanocrystals was achieved at room temperature under ambient conditions using the ligand-assisted reprecipitation (LARP) method. The synthesized NCs exhibit bright orange emission when excited at 375 nm and have broad photoluminescence (PL) emission spectra with a maximum of 630 nm. A photoluminescence quantum yield (PLQY) of 36% was observed in these NCs without any polymer coatings. Polystyrene (PS), and poly (methyl methacrylate) (PMMA) were used to enhance the water stability and PLQY values up to 64%. Nanocomposite thin films with these polymer encapsulations exhibit good thermal stability up to at least 353 K and high quantum yields. PMMA-coated NCs showed long-term water stability for at least 4 months. The composites remain photostable when in contact with water for at least 120 min under continuous 365 nm UV illumination at 1 mW cm-2. Due to their excellent optical properties, aqueous stability, and wide range pH tolerance, these nanocomposite thin films could be employed for a variety of biological applications.
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Affiliation(s)
- Steevanson Bayer
- Department of Chemistry, The Hong Kong University of Science and Technology Kowloon Hong Kong SAR China
| | - Jason Ho Yin Yu
- Department of Chemistry, The Hong Kong University of Science and Technology Kowloon Hong Kong SAR China
| | - Stefan Nagl
- Department of Chemistry, The Hong Kong University of Science and Technology Kowloon Hong Kong SAR China
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2
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Wang S, Liu R, Li J, Meng C, Liu J, Chen J, Cheng P, Wu K. Blue Long Afterglow and Ultra Broadband Vis-NIR Emission from All-Inorganic Copper-Doped Silver Halide Single Crystals. Angew Chem Int Ed Engl 2024; 63:e202403927. [PMID: 38632085 DOI: 10.1002/anie.202403927] [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: 02/26/2024] [Revised: 03/15/2024] [Accepted: 04/17/2024] [Indexed: 04/19/2024]
Abstract
All-inorganic metal halides with afterglow emission have attracted increasing attention due to their significantly longer afterglow duration and higher stability compared to their organic-inorganic hybrid counterparts. However, their afterglow colors have not yet reached the blue spectral region. Here, we report all-inorganic copper-doped Rb2AgBr3 single crystals with ultralong blue afterglow (>300 s) by modulating defect states through doping engineering. The introduction of copper(I) ions into Rb2AgBr3 facilitates the formation of bromine vacancies, thus increasing the density of trap states available for charge storage and enabling bright, persistent emission after ceasing the excitation. Moreover, cascade energy transfer between distinct emissive centers in the crystals results in ultra-broadband photoluminescence, not only covering the whole white light with near-unity quantum yield but also extending into the near-infrared region. This 'cocktail' of exotic light-emission properties, in conjunction with the excellent stability of copper-doped Rb2AgBr3 crystals, allowed us to demonstrate their implementation to solid-state lighting, night vision, and intelligent anti-counterfeiting.
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Affiliation(s)
- Sijia Wang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Runze Liu
- School of Science, Dalian Jiaotong University, Dalian, 116028, P. R. China
| | - Juntao Li
- Key Laboratory of Chemical Lasers, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Caixia Meng
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Jianyong Liu
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Junsheng Chen
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100, Copenhagen, Denmark
| | - Pengfei Cheng
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Kaifeng Wu
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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3
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Yu S, Peng H, Wei Q, Li T, Huang W, He X, Du Z, Zhao J, Zou B. Realizing efficient broadband near-infrared emission and multimode photoluminescence switching via coordination structure modulation in Sb 3+-doped 0D organic metal chlorides. MATERIALS HORIZONS 2024; 11:2230-2241. [PMID: 38421281 DOI: 10.1039/d3mh01962d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Recently, organic Sb(III)-based metal halides have achieved significant results in the visible light region due to their efficient emission. However, realizing efficient broadband near-infrared (NIR) emission in such materials is a great challenge. Herein, we developed three different NIR emitters via a coordination structure modulation strategy in Sb3+-doped zero-dimensional organic metal chlorides of (C20H20P)2MnCl4, (C20H20P)2ZnCl4, and (C20H20P)2CdCl4 with tetrahedral structure. More specifically, after the dopant Sb3+ is inserted into the host lattice, the coordination structures of Sb3+ ions can change from [SbCl5]2- square-pyramidal configuration to [SbCl4]- clusters, which will bring a larger lattice distortion degree to the excited state compared to the ground state, resulting in a larger Stokes shift. Thus, efficient NIR emission with near-unity photoluminescence quantum yield (PLQY) can be obtained in Sb3+-doped compounds under 365 nm excitation. Moreover, Sb3+-doped NIR emitters also show remarkable stabilities, which prompts us to fabricate NIR phosphor conversion light-emitting diodes (pc-LEDs) and demonstrate their application in night vision. More interestingly, the Sb3+-doped (C20H20P)2MnCl4 shows tunable emission characteristics, which can be tuned from green to greenish-yellow, orange, red, and NIR emission under different external stimuli, and thus we can demonstrate the applications of this compound in quintuple-mode fluorescence anti-counterfeiting and information encryption.
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Affiliation(s)
- Shuiyue Yu
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China.
| | - Hui Peng
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China.
| | - Qilin Wei
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Tongzhou Li
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China.
| | - Weiguo Huang
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China.
| | - Xuefei He
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China.
| | - Zhentao Du
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China.
| | - Jialong Zhao
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China.
| | - Bingsuo Zou
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China.
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4
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Liu Y, Di Stasio F, Bi C, Zhang J, Xia Z, Shi Z, Manna L. Near-Infrared Light Emitting Metal Halides: Materials, Mechanisms, and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312482. [PMID: 38380797 DOI: 10.1002/adma.202312482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/13/2024] [Indexed: 02/22/2024]
Abstract
Near-Infrared (NIR) light emitting metal halides are emerging as a new generation of optical materials owing to their appealing features, which include low-cost synthesis, solution processability, and adjustable optical properties. NIR-emitting perovskite-based light-emitting diodes (LEDs) have reached an external quantum efficiency (EQE) of over 20% and a device stability of over 10,000 h. Such results have sparked an interest in exploring new NIR metal halide emitters. In this review, several different types of NIR-emitting metal halides, including lead/tin bromide/iodide perovskites, lanthanide ions doped/based metal halides, double perovskites, low dimensional hybrid and Bi3+/Sb3+/Cr3+ doped metal halides, are summarized, and their recent advancement is assessed. The characteristics and mechanisms of narrow-band or broadband NIR luminescence in all these materials are discussed in detail. Also, the various applications of NIR-emitting metal halides are highlighted and an outlook for the field is provided.
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Affiliation(s)
- Ying Liu
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Francesco Di Stasio
- Photonic Nanomaterials, Istituto Italiano di Tecnologia, Via Morego 30, Genova, 16163, Italy
| | - Chenghao Bi
- Qingdao Innovation and Development Base, Harbin Engineering University, Sansha Str. 1777, Qingdao, 266500, China
| | - Jibin Zhang
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Zhiguo Xia
- The State Key Laboratory of Luminescent Materials and Devices, School of Physics and Optoelectronics, South China University of Technology, Guangzhou, 510641, China
| | - Zhifeng Shi
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Liberato Manna
- Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, Genova, 16163, Italy
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5
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Wang Q, Jin J, Wang Z, Ren S, Ye Q, Dou Y, Liu S, Morris A, Slebodnick C, Quan L. Supramolecular Metal Halide Complexes for High-Temperature Nonlinear Optical Switches. J Am Chem Soc 2024; 146:8971-8980. [PMID: 38393312 PMCID: PMC10996001 DOI: 10.1021/jacs.3c13079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024]
Abstract
Nonlinear optical (NLO) switching materials, which exhibit reversible intensity modulation in response to thermal stimuli, have found extensive applications across diverse fields including sensing, photoelectronics, and photonic applications. While significant progress has been made in solid-state NLO switching materials, these materials typically showcase their highest NLO performance near room temperature. However, this performance drastically deteriorates upon heating, primarily due to the phase transition undergone by the materials from noncentrosymmetric to centrosymmetric phase. Here, we introduce a new class of NLO switching materials, solid-state supramolecular compounds 18-Crown-6 ether@Cu2Cl4·4H2O (1·4H2O), exhibiting reversible and stable NLO switching when subjected to near-infrared (NIR) photoexcitation and/or thermal stimuli. The reversible crystal structure in response to external stimuli is attributed to the presence of a weakly coordinated bridging water molecule facilitated by hydrogen bonding/chelation interactions between the metal halide and crown-ether supramolecules. We observed an exceptionally high second-harmonic generation (SHG) signal under continuous photoexcitation, even at temperatures exceeding 110 °C. In addition, the bridging water molecules within the complex can be released and recaptured in a fully reversible manner, all without requiring excessive energy input. This feature allows for precise control of SHG signal activation and deactivation through structural transformations, resulting in a high-contrast off/on ratio, reaching values in the million-fold range.
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Affiliation(s)
- Qian Wang
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Jianbo Jin
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Zhongxuan Wang
- Department
of Materials Science and Engineering, University
of Maryland, College
Park, Maryland 20742, United States
| | - Shenqiang Ren
- Department
of Materials Science and Engineering, University
of Maryland, College
Park, Maryland 20742, United States
| | - Qingyu Ye
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Yixuan Dou
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Sunhao Liu
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Amanda Morris
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Carla Slebodnick
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Lina Quan
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
- Department
of Materials and Science Engineering, Virginia
Tech, Blacksburg, Virginia 24061, United States
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6
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Han X, Cheng P, Han S, Wang Z, Guan J, Han W, Shi R, Chen S, Zheng Y, Xu J, Bu XH. Multi-stimuli-responsive luminescence enabled by crown ether anchored chiral antimony halide phosphors. Chem Sci 2024; 15:3530-3538. [PMID: 38455020 PMCID: PMC10915841 DOI: 10.1039/d3sc06362c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 01/22/2024] [Indexed: 03/09/2024] Open
Abstract
Stimuli-responsive optical materials have provided a powerful impetus for the development of intelligent optoelectronic devices. The family of organic-inorganic hybrid metal halides, distinguished by their structural diversity, presents a prospective platform for the advancement of stimuli-responsive optical materials. Here, we have employed a crown ether to anchor the A-site cation of a chiral antimony halide, enabling convenient control and modulation of its photophysical properties. The chirality-dependent asymmetric lattice distortion of inorganic skeletons assisted by a crown ether promotes the formation of self-trapped excitons (STEs), leading to a high photoluminescence quantum yield of over 85%, concomitant with the effective circularly polarized luminescence. The antimony halide enantiomers showcase highly sensitive stimuli-responsive luminescent behaviours towards excitation wavelength and temperature simultaneously, exhibiting a versatile reversible colour switching capability from blue to white and further to orange. In situ temperature-dependent luminescence spectra, time-resolved luminescence spectra and theoretical calculations reveal that the multi-stimuli-responsive luminescent behaviours stem from distinct STEs within zero-dimensional lattices. By virtue of the inherent flexibility and adaptability, these chiral antimony chlorides have promising prospects for future applications in cutting-edge fields such as multifunctional illumination technologies and intelligent sensing devices.
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Affiliation(s)
- Xiao Han
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University Tongyan Road 38 Tianjin 300350 P. R. China
| | - Puxin Cheng
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University Tongyan Road 38 Tianjin 300350 P. R. China
| | - Shanshan Han
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University Tongyan Road 38 Tianjin 300350 P. R. China
| | - Zhihua Wang
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University Tongyan Road 38 Tianjin 300350 P. R. China
| | - Junjie Guan
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University Tongyan Road 38 Tianjin 300350 P. R. China
| | - Wenqing Han
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University Tongyan Road 38 Tianjin 300350 P. R. China
| | - Rongchao Shi
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University Tongyan Road 38 Tianjin 300350 P. R. China
| | - Songhua Chen
- College of Chemistry and Material Science, Longyan University Longyan 364012 Fujian P. R. China
| | - Yongshen Zheng
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University Tongyan Road 38 Tianjin 300350 P. R. China
| | - Jialiang Xu
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University Tongyan Road 38 Tianjin 300350 P. R. China
| | - Xian-He Bu
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University Tongyan Road 38 Tianjin 300350 P. R. China
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7
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Sun X, Wu M, Yu X, Li Q, Xiao G, Wang K, Zou B. Intense Broadband Emission in the Unconventional 3D Hybrid Metal Halide via High-Pressure Engineering. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306937. [PMID: 38143277 PMCID: PMC10933603 DOI: 10.1002/advs.202306937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/15/2023] [Indexed: 12/26/2023]
Abstract
Developing hybrid metal halides with self-trapped exciton (STE) emission is a powerful and promising approach to achieve single-component phosphors for wide-color-gamut display and illumination. Nevertheless, it is difficult to generate STEs and broadband emission in the classical and widely used 3D systems, owing to the great structural connectivity of metal-halogen networks. Here, high pressure is implemented to achieve dual emission and dramatical emission enhancement in 3D metal halide of [Pb3 Br4 ][O2 C(CH2 )2 CO2 ]. The pressure-induced new emission is ascribed to the radiation recombination of STEs from the Pb2 Br2 O2 tetrahedra with the promoted distortion through the isostructural phase transition. Furthermore, the wide range of emission chromaticity can be regulated by controlling the distortion order of different polyhedral units upon compression. This work not only constructs the relationship between structure and optical behavior of [Pb3 Br4 ][O2 C(CH2 )2 CO2 ], but also provides new strategies for optimizing broadband emission toward potential applications in solid-state lighting.
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Affiliation(s)
- Xuening Sun
- State Key Laboratory of Superhard MaterialsCollege of PhysicsJilin UniversityChangchun130012China
| | - Min Wu
- Shandong Key Laboratory of Optical Communication Science and TechnologySchool of Physics Science and Information TechnologyLiaocheng UniversityLiaocheng252000China
| | - Xihan Yu
- State Key Laboratory of Superhard MaterialsCollege of PhysicsJilin UniversityChangchun130012China
| | - Qian Li
- Shandong Key Laboratory of Optical Communication Science and TechnologySchool of Physics Science and Information TechnologyLiaocheng UniversityLiaocheng252000China
| | - Guanjun Xiao
- State Key Laboratory of Superhard MaterialsCollege of PhysicsJilin UniversityChangchun130012China
| | - Kai Wang
- Shandong Key Laboratory of Optical Communication Science and TechnologySchool of Physics Science and Information TechnologyLiaocheng UniversityLiaocheng252000China
| | - Bo Zou
- State Key Laboratory of Superhard MaterialsCollege of PhysicsJilin UniversityChangchun130012China
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8
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Zhu X, Gu T, Zhao L, Gao W, Liu H, Nie L, Zhao F, Yue Y, He Q, An X, Hao P, Yakovlev AN, Hu T, Yu S, Xu X, Yu X, Wang T. Temperature-Dependent Color-Tunable Afterglow in Zirconium-Doped CsCdCl 3 Perovskite for Advanced Anti-Counterfeiting and Thermal Distribution Detection. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306299. [PMID: 37929651 DOI: 10.1002/smll.202306299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/10/2023] [Indexed: 11/07/2023]
Abstract
Persistent luminescence (PersL) materials exhibit thermal-favored optical behavior, enabling their unique applications in security night vision signage, in vivo bioimaging, and optical anti-counterfeiting. Therefore, developing efficient and color-tunable PersL materials is significantly crucial in promoting advanced practical use. In this study, hexagonal Zr4+ -doped CsCdCl3 perovskite is synthesized via a hydrothermal reaction with a tunable photoluminescent (PL) behavior through heterovalent substitution. Moreover, the incorporation of Zr4+ ions result in an extra blue emission band, originating from the enhanced excitonic recombination in D3d octahedrons. Furthermore, the afterglow performances of the samples are dramatically improved, along with the noticeable temperature-dependent PersL as well as the thermo-luminescence with tunable color output. Detailed analysis reveals that the unique temperature-dependent PersL and thermo-luminescence color change are attributed to the presence of multiple luminous centers and abundant traps. Overall, this work facilitates the development of optical intelligence platforms and novel thermal distribution probes with the as-developed halides perovskite for its superior explored PersL characteristic.
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Affiliation(s)
- Xuanyu Zhu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, China
- The Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, 999999, China
| | - Tingxiang Gu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, China
| | - Lei Zhao
- Collaborative Innovation Center of Rare-Earth Optical Functional Materials and Devices Development, School of Physics and Opto-Electronic Technology Baoji University of Arts and Sciences, Baoji, 721016, China
| | - Wei Gao
- The Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, 999999, China
| | - Haozhe Liu
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, China
| | - Lin Nie
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, China
| | - Feng Zhao
- School of Mechanical Engineering, Institute for Advanced Materials Deformation and Damage from Multi-Scale, Chengdu University, Chengdu, 610106, China
| | - Yang Yue
- School of Mechanical Engineering, Institute for Advanced Materials Deformation and Damage from Multi-Scale, Chengdu University, Chengdu, 610106, China
| | - Qingshan He
- School of Mechanical Engineering, Institute for Advanced Materials Deformation and Damage from Multi-Scale, Chengdu University, Chengdu, 610106, China
| | - Xin An
- School of Mechanical Engineering, Institute for Advanced Materials Deformation and Damage from Multi-Scale, Chengdu University, Chengdu, 610106, China
| | - Puyan Hao
- Collaborative Innovation Center of Rare-Earth Optical Functional Materials and Devices Development, School of Physics and Opto-Electronic Technology Baoji University of Arts and Sciences, Baoji, 721016, China
| | - Alexey Nikolaevich Yakovlev
- Institute of Chemical and Oil-Gas Technologies, Т.F. Gorbachev Kuzbass State Technical University, 28, Vesennyaya Street, Kemerovo, 650000, Russia
| | - Tingting Hu
- Institute of Chemical and Oil-Gas Technologies, Т.F. Gorbachev Kuzbass State Technical University, 28, Vesennyaya Street, Kemerovo, 650000, Russia
| | - Siufung Yu
- The Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, 999999, China
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen, 518000, China
| | - Xuhui Xu
- Faculty of Materials Science and Engineering, Key Laboratory of Advanced Materials of Yunnan Province, Kunming University of Science and Technology, Kunming, 650093, China
| | - Xue Yu
- School of Mechanical Engineering, Institute for Advanced Materials Deformation and Damage from Multi-Scale, Chengdu University, Chengdu, 610106, China
| | - Ting Wang
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, China
- The Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, 999999, China
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9
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Zhang ZH, Yan SS, Chen YL, Lian ZD, Fu A, Kong YC, Li L, Su SC, Ng KW, Wei ZP, Liu HC, Wang SP. Air-Stable Self-Driven UV Photodetectors on Controllable Lead-Free CsCu 2I 3 Microwire Arrays. ACS APPLIED MATERIALS & INTERFACES 2024; 16:10398-10406. [PMID: 38380978 PMCID: PMC10910456 DOI: 10.1021/acsami.3c17881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/29/2024] [Accepted: 02/05/2024] [Indexed: 02/22/2024]
Abstract
The rapid evolution of the Internet of Things has engendered increased requirements for low-cost, self-powered UV photodetectors. Herein, high-performance self-driven UV photodetectors are fabricated by designing asymmetric metal-semiconductor-metal structures on the high-quality large-area CsCu2I3 microwire arrays. The asymmetrical depletion region doubles the photocurrent and response speed compared to the symmetric structure device, leading to a high responsivity of 233 mA/W to 355 nm radiation. Notably, at 0 V bias, the asymmetric device produces an open-circuit voltage of 356 mV and drives to a short-circuit current of 372 pA; meanwhile, the switch ratio (Iph/Idark) reaches up to 103, indicating its excellent potential for detecting weak light. Furthermore, the device maintains stable responses throughout 10000 UV-light switch cycles, with negligible degradation even after 90-day storage in air. Our work establishes that CsCu2I3 is a good candidate for self-powered UV detection and thoroughly demonstrates its potential as a passive device.
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Affiliation(s)
- Zhi-Hong Zhang
- State
Key Laboratory of High Power Semiconductor Lasers, Changchun University of Science and Technology, Changchun 130022, China
- Institute
of Applied Physics and Materials Engineering, University of Macau, Taipa, Macao SAR 999078, China
| | - Shan-Shan Yan
- Institute
of Applied Physics and Materials Engineering, University of Macau, Taipa, Macao SAR 999078, China
| | - Yu-Long Chen
- Institute
of Applied Physics and Materials Engineering, University of Macau, Taipa, Macao SAR 999078, China
| | - Zhen-Dong Lian
- Institute
of Applied Physics and Materials Engineering, University of Macau, Taipa, Macao SAR 999078, China
| | - Ai Fu
- Institute
of Applied Physics and Materials Engineering, University of Macau, Taipa, Macao SAR 999078, China
| | - You-Chao Kong
- Institute
of Applied Physics and Materials Engineering, University of Macau, Taipa, Macao SAR 999078, China
| | - Lin Li
- Key
Laboratory for Photonic and Electronic Bandgap Materials, Ministry
of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, China
| | - Shi-Chen Su
- School
of Semiconductor Science and Technology, South China Normal University, Foshan 528000, China
| | - Kar-Wei Ng
- Institute
of Applied Physics and Materials Engineering, University of Macau, Taipa, Macao SAR 999078, China
| | - Zhi-Peng Wei
- State
Key Laboratory of High Power Semiconductor Lasers, Changchun University of Science and Technology, Changchun 130022, China
| | - Hong-Chao Liu
- Institute
of Applied Physics and Materials Engineering, University of Macau, Taipa, Macao SAR 999078, China
| | - Shuang-Peng Wang
- Institute
of Applied Physics and Materials Engineering, University of Macau, Taipa, Macao SAR 999078, China
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10
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Chen X, Pan Y, Ding Y, Lian H, Lin J, Li L. Enhanced Efficiency, Broadened Excitation, and Tailored Er 3+ Luminescence Triggered by Te 4+ Codoping in Cs 2NaYbCl 6 Crystals for Multifunctional Applications. Inorg Chem 2024; 63:3525-3534. [PMID: 38324525 DOI: 10.1021/acs.inorgchem.3c04368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
The quest for efficient and tunable luminescent materials has been at the forefront of research in the fields of chemistry and materials science. This work delves into the investigation of the luminescence properties of Er3+ ions triggered by 1% Te4+ in the environmentally benign perovskite Cs2NaYbCl6 (CNYC) crystals, aiming to enhance their efficiency and tune the luminescence color. The ratio of the green (2H11/2, 4S3/2-4I15/2) to red (4F9/2-4I15/2) emissions of Er3+ can be freely tunable by varying the concentration of Er3+ and producing the defects induced by codoping Te4+. The calculations reveal that the multiexcitonic excitations of Er3+ stem from f-f (4I15/2-4G11/2, 2H9/2) rather than d-f transitions. The broadened excitation, tuning of color, and enhancement of efficiency achieved in the luminescence perovskite crystals Cs2NaYbCl6:Te4+, Er3+ (CNYC:Te4+,Er3+) presents promising opportunities for the development of advanced optoelectronic devices with superior performance. Moreover, our investigation demonstrates the tunable luminescence response of CNYC:Er3+ to temperature variations, offering potential applications in temperature sensing.
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Affiliation(s)
- Xi Chen
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Yuexiao Pan
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Yihong Ding
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Hongzhou Lian
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Jun Lin
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Liyi Li
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, P. R. China
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11
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Qing Y, Han B, Yu R, Zhou Z, Wu G, Li C, Ma P, Zhang C, Tan Z. Bright Blue Emission Lead-Free Halides with Narrow Bandwidth Enabled by Oversaturated Europium Doping. J Phys Chem Lett 2024; 15:1668-1676. [PMID: 38315425 DOI: 10.1021/acs.jpclett.3c03526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Eu2+-based lead-free metal halide nanocrystals (LFMH NCs), including CsEuCl3 NCs and CsX:Eu2+ NCs (X = Cl or Br), exhibit highly efficient narrow-band blue photoluminescence, making them competitive candidates for next-generation lighting and displays. However, the growing mechanism of the aforementioned NCs lacks in-depth study, which hinders the development of Eu2+-based nanomaterials. Herein, we demonstrate the colloidal synthesis of CsBr:Eu2+ NCs based on an air-stable europium source. The NCs show deep blue photoluminescence centered at 444 nm, with a maximum photoluminescence quantum yield (PLQY) reaching 53.4% and a fwhm of 30 nm. We further reveal the mechanism that determines CsBr host growth and Eu2+ doping in CsBr:Eu2+ nanocrystals, especially dopant trapping and self-purification, that determine the PLQY level. Pure white, warm white, and cold white LEDs are fabricated based on CsBr:Eu2+ NCs, red and green phosphors, and their performance suits the needs of high-quality lighting.
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Affiliation(s)
- Yizhao Qing
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Bing Han
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Runnan Yu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhiming Zhou
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Guangzheng Wu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Changxiao Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Peijin Ma
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Chengyang Zhang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhan'ao Tan
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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12
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Gao FF, Qin Y, Li ZG, Li W, Hao J, Li X, Liu Y, Howard CJ, Wu X, Jiang X, Lin Z, Lu P, Bu XH. Unusual Pressure-Induced Self-Trapped Exciton to Free Exciton Transfer in Chiral 2D Lead Bromide Perovskites. ACS NANO 2024; 18:3251-3259. [PMID: 38227818 DOI: 10.1021/acsnano.3c09756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
The phenomenon of pressure-induced emission alterations related to complex excitonic dynamics in 2D lead halide perovskites (LHPs) has gained considerable attention for understanding their structure-property relationship and obtaining inaccessible luminescence under ambient conditions. However, the well-known pressure-induced emissions are limited to the formation of self-trapped excitons (STEs) due to the structural distortion under compression, which goes against the advantage of the highly pure emission of LHPs. Here, the pressure-induced detrapping from STEs to free excitons (FEs) accompanied by the dramatic transition from broadband orangish emission to narrow blue emission has been achieved in chiral 2D LHPs and R- and S-[4MeOPEA]2PbBr4, (4MeOPEA = 4-methoxy-α-methylbenzylammonium). The combined experimental and calculated results reveal that the distortion level of PbBr6 octahedra of R- and S-[4MeOPEA]2PbBr4 exhibits an unusually significant reduction as the applied pressure increases, which leads to decreased electron-phonon coupling and self-trapped energy barrier and consequently enables the detrapping of STEs to FEs. This work illustrates the dramatic exciton transfer in 2D LHPs and highlights the potential for realizing highly efficient and pure light emissions by manipulating the structural distortion via strain engineering.
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Affiliation(s)
- Fei-Fei Gao
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University & TKL of Metal and Molecule Based Material Chemistry, Tianjin 300350, China
- Key Laboratory of Functional Inorganic Materials Chemistry (Ministry of Education) & School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Yan Qin
- School of Physics & Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, China
| | - Zhi-Gang Li
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University & TKL of Metal and Molecule Based Material Chemistry, Tianjin 300350, China
| | - Wei Li
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University & TKL of Metal and Molecule Based Material Chemistry, Tianjin 300350, China
| | - Jing Hao
- College of Chemistry & State Key Lab of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Xiang Li
- State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
| | - Yungui Liu
- State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
| | | | - Xiang Wu
- State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
| | - Xingxing Jiang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Zheshuai Lin
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Peixiang Lu
- School of Physics & Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xian-He Bu
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University & TKL of Metal and Molecule Based Material Chemistry, Tianjin 300350, China
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13
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Feng J, Cao Q, Xue J, Lu H. Synthesis of Metastable Silver-Lanthanide Double Perovskite Nanocrystals with White-Light Emission. Inorg Chem 2024; 63:2241-2246. [PMID: 38216857 DOI: 10.1021/acs.inorgchem.3c04203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2024]
Abstract
Four silver-lanthanide double perovskite nanocrystals, namely, Cs2AgSmCl6, Cs2AgEuCl6, Cs2AgGdCl6, and Cs2AgErCl6, were synthesized for the first time. These four double perovskites have yet to be reported in any form and are found to be metastable in the bulk phase. By using the colloidal hot-injection synthesis method, the metastable double perovskite phase can be arrested kinetically. These lead-free nanocrystals show a broadband emission owing to the self-trapped exciton recombination, with Cs2AgEuCl6 exhibiting the characteristic f-f emission from Eu3+.
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Affiliation(s)
- Jianning Feng
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (SAR) 999077, China
| | - Qinxuan Cao
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (SAR) 999077, China
| | - Jie Xue
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (SAR) 999077, China
| | - Haipeng Lu
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (SAR) 999077, China
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14
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Dávid A, Morát J, Chen M, Gao F, Fahlman M, Liu X. Mapping Uncharted Lead-Free Halide Perovskites and Related Low-Dimensional Structures. MATERIALS (BASEL, SWITZERLAND) 2024; 17:491. [PMID: 38276430 PMCID: PMC10819976 DOI: 10.3390/ma17020491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/13/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024]
Abstract
Research on perovskites has grown exponentially in the past decade due to the potential of methyl ammonium lead iodide in photovoltaics. Although these devices have achieved remarkable and competitive power conversion efficiency, concerns have been raised regarding the toxicity of lead and its impact on scaling up the technology. Eliminating lead while conserving the performance of photovoltaic devices is a great challenge. To achieve this goal, the research has been expanded to thousands of compounds with similar or loosely related crystal structures and compositions. Some materials are "re-discovered", and some are yet unexplored, but predictions suggest that their potential applications may go beyond photovoltaics, for example, spintronics, photodetection, photocatalysis, and many other areas. This short review aims to present the classification, some current mapping strategies, and advances of lead-free halide double perovskites, their derivatives, lead-free perovskitoid, and low-dimensional related crystals.
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Affiliation(s)
- Anna Dávid
- Laboratory of Organic Electronics (LOE), Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden;
| | - Julia Morát
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183 Linköping, Sweden; (J.M.); (M.C.); (F.G.)
| | - Mengyun Chen
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183 Linköping, Sweden; (J.M.); (M.C.); (F.G.)
| | - Feng Gao
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183 Linköping, Sweden; (J.M.); (M.C.); (F.G.)
| | - Mats Fahlman
- Laboratory of Organic Electronics (LOE), Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden;
| | - Xianjie Liu
- Laboratory of Organic Electronics (LOE), Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden;
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15
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Kuruppu UM, Rahman MA, Gangishetty MK. Unraveling the Origin of an Unusual Shift in the Electroluminescence of 1D CsCu 2I 3 Light-Emitting Diodes. ACS NANO 2024; 18:1647-1657. [PMID: 38166382 DOI: 10.1021/acsnano.3c09824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
Lead-free low-dimensional copper-based metal halides are promising luminescent materials for broadband LEDs owing to their broad self-trapped exciton (STE) emission. However, recently, in 1D CsCu2I3, a discrepancy between their electroluminescence (EL) and photoluminescence (PL) has been observed. As a result, the overall output color from LEDs is significantly different than the anticipated emission. To unveil the origin of this discrepancy, here, we provide comprehensive analyses and show that the shift in the EL is caused neither by any structural/optical interactions between CsCu2I3 and electron transport layers (ETL) nor by the degradation of 1D CsCu2I3. Instead, it depends on the carrier imbalance on CsCu2I3, mainly due to the difference in the electron mobility of the ETLs and the electron density on the CsCu2I3 layer. By varying the ETLs, different colored 1D CsCu2I3 LEDs with peaks at 556, 590, and 647 nm are fabricated, and a maximum luminance of over 2000 cd/m2 is achieved for a 556 nm LED. Further, by limiting the electron mobility and injection to 1D CsCu2I3 using an insulating LiF layer at the CsCu2I3/ETL interface, more red-shifted LEDs are achieved confirming the critical role of electron density on the EL characteristics of 1D CsCu2I3.
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Affiliation(s)
- Udara M Kuruppu
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Mohammad A Rahman
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Mahesh K Gangishetty
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762, United States
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16
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Xing F, Liu S, Li J, Wang C, Jin S, Jin H, Li J. Modulate the Strong Exciton Effect by Na + Coordination-Induced Trap States: Efficient Photocatalytic H 2O 2 Production. ACS APPLIED MATERIALS & INTERFACES 2024; 16:860-868. [PMID: 38151338 DOI: 10.1021/acsami.3c16110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Due to the strong Coulomb interaction, in most polymer photocatalysts, electron-hole pairs exist in the form of excitons rather than free charge carriers. The giant excitonic effect is a key obstacle to generating free charge carriers. Therefore, effectively regulating the exciton effect is the first step to achieving optimized carrier separation. Here, we used C-ring/g-C3N4 as the prototypical model system to design a photocatalyst with a Na-coordination-induced trap state. We demonstrate that the excitons can be effectively dissociated into charge carriers by combining with the trap state formed by Na doping sites. Encouragingly, signals from the dissociation of excitons into carriers were observed by ultrafast transient spectroscopy. Benefiting from the enhanced exciton dissociation, Na-C/CN displayed a H2O2 production rate of 17.4 mmol·L-1·h-1 with an apparent quantum efficiency up to 26.9% at 380 nm, which is much higher than many other g-C3N4-based photocatalysts. This work explains the effect of cation doping on the exciton-carrier behavior in polymers. Also, it provides a new way to regulate the exciton effect.
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Affiliation(s)
- Fangyuan Xing
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Shiqiao Liu
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Junyan Li
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Chengzhi Wang
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Shaohua Jin
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Haibo Jin
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jingbo Li
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
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17
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Xu X, Xie YM, Shi H, Wang Y, Zhu X, Li BX, Liu S, Chen B, Zhao Q. Light Management of Metal Halide Scintillators for High-Resolution X-Ray Imaging. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2303738. [PMID: 38009773 DOI: 10.1002/adma.202303738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 08/10/2023] [Indexed: 11/29/2023]
Abstract
The ever-growing need to inspect matter with hyperfine structures requires a revolution in current scintillation detectors, and the innovation of scintillators is revived with luminescent metal halides entering the scene. Notably, for any scintillator, two fundamental issues arise: Which kind of material is suitable and in what form should the material exist? The answer to the former question involves the sequence of certain atoms into specific crystal structures that facilitate the conversion of X-ray into light, whereas the answer to the latter involves assembling these crystallites into particular material forms that can guide light propagation toward its corresponding pixel detector. Despite their equal importance, efforts are overwhelmingly devoted to improving the X-ray-to-light conversion, while the material-form-associated light propagation, which determines the optical signal collected for X-ray imaging, is largely overlooked. This perspective critically correlates the reported spatial resolution with the light-propagation behavior in each form of metal halides, combing the designing rules for their future development.
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Affiliation(s)
- Xiuwen Xu
- College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing, 210023, P. R. China
| | - Yue-Min Xie
- Institute of Functional Nano & Soft Materials (FUNSOM), Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, P. R. China
| | - Huaiyao Shi
- College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing, 210023, P. R. China
| | - Yongquan Wang
- State Key Laboratory of Organic Electronics and Information Displays and Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing, 210023, P. R. China
| | - Xianjun Zhu
- College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing, 210023, P. R. China
| | - Bing-Xiang Li
- College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing, 210023, P. R. China
| | - Shujuan Liu
- State Key Laboratory of Organic Electronics and Information Displays and Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing, 210023, P. R. China
| | - Bing Chen
- College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing, 210023, P. R. China
| | - Qiang Zhao
- College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing, 210023, P. R. China
- State Key Laboratory of Organic Electronics and Information Displays and Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing, 210023, P. R. China
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18
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Chang B, Chen J, Bao J, Sun T, Cheng Z. Molecularly Engineered Room-Temperature Phosphorescence for Biomedical Application: From the Visible toward Second Near-Infrared Window. Chem Rev 2023; 123:13966-14037. [PMID: 37991875 DOI: 10.1021/acs.chemrev.3c00401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Phosphorescence, characterized by luminescent lifetimes significantly longer than that of biological autofluorescence under ambient environment, is of great value for biomedical applications. Academic evidence of fluorescence imaging indicates that virtually all imaging metrics (sensitivity, resolution, and penetration depths) are improved when progressing into longer wavelength regions, especially the recently reported second near-infrared (NIR-II, 1000-1700 nm) window. Although the emission wavelength of probes does matter, it is not clear whether the guideline of "the longer the wavelength, the better the imaging effect" is still suitable for developing phosphorescent probes. For tissue-specific bioimaging, long-lived probes, even if they emit visible phosphorescence, enable accurate visualization of large deep tissues. For studies dealing with bioimaging of tiny biological architectures or dynamic physiopathological activities, the prerequisite is rigorous planning of long-wavelength phosphorescence, being aware of the cooperative contribution of long wavelengths and long lifetimes for improving the spatiotemporal resolution, penetration depth, and sensitivity of bioimaging. In this Review, emerging molecular engineering methods of room-temperature phosphorescence are discussed through the lens of photophysical mechanisms. We highlight the roles of phosphorescence with emission from visible to NIR-II windows toward bioapplications. To appreciate such advances, challenges and prospects in rapidly growing studies of room-temperature phosphorescence are described.
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Affiliation(s)
- Baisong Chang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Jie Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Jiasheng Bao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Taolei Sun
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, Hubei 430070, China
| | - Zhen Cheng
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264000, China
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19
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Wang X, Wang C, Tao C, Kuang Z, Wang X, Xu L, Wei Y, Peng Q, Huang W, Wang J. Unraveling the Origin of Long-Lifetime Emission in Low-Dimensional Copper Halides via a Magneto-optical Study. NANO LETTERS 2023; 23:11860-11865. [PMID: 38085911 DOI: 10.1021/acs.nanolett.3c03874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
The origin of the long lifetime of self-trapped exciton emission in low-dimensional copper halides is currently the subject of extensive debate. In this study, we address this issue in a prototypical zero-dimensional copper halide, Cs2(C18)2Cu2I4-DMSO, through magneto-optical studies at low temperatures down to 0.2 K. Our results exclude spin-forbidden dark states and indirect phonon-assisted recombination as the origin of the long photoluminescence lifetime. Instead, we propose that the minimal Franck-Condon factor of the radiative transition from excited states to the ground state is the decisive factor, based on the transition probability analysis. Our findings offer insights into the electronic processes in low-dimensional copper halides and have the potential to advance the application of these distinctive materials in optoelectronics.
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Affiliation(s)
- Xing Wang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, China
| | - Chengcheng Wang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, China
| | - Cong Tao
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, China
| | - Zhiyuan Kuang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, China
| | - Xinrui Wang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, China
| | - Lei Xu
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, China
| | - Yingqiang Wei
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, China
- The 58th Research Institute of China Electronics Technology Group 217 Corporation, Wuxi, Jiangsu 214000, China
| | - Qiming Peng
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, China
| | - Wei Huang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, China
- Strait Laboratory of Flexible Electronics, Fuzhou, Fujian 350117, China
| | - Jianpu Wang
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials and School of Flexible Electronics (Future Technologies), Nanjing Tech University, 30 South Puzhu Road, Nanjing, Jiangsu 211816, China
- Changzhou University, 21 Middle Gehu Road, Changzhou 213164, China
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20
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Jiang F, Wu Z, Lu M, Gao Y, Li X, Bai X, Ji Y, Zhang Y. Broadband Emission Origin in Metal Halide Perovskites: Are Self-Trapped Excitons or Ions? ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211088. [PMID: 36988940 DOI: 10.1002/adma.202211088] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 03/20/2023] [Indexed: 06/19/2023]
Abstract
It has always been a goal to realize high efficiency and broadband emission in single-component materials. The appearance of metal halide perovskites makes it possible. Their soft lattice characteristics and significant electron-phonon coupling synergistically generate self-trapped excitons (STEs), contributing to a broadband emission with a large Stokes shift. Meanwhile, their structural/compositional diversity provides suitable active sites and coordination environments for doping of ns2 ions, allowing 3 Pn ( n =0,1,2) →1 S0 transitions toward broadband emission. The ns2 ions emission is phenomenologically similar to that of STE emission, hindering in-depth understanding of their emission origin, and leading to failure to meet the design requirements for practical applications. In this scenario, herein, the fundamentals and development of such two emission mechanisms are summarized to establish a clear and comprehensive understanding of the broadband emission phenomenon, which may pave the way to an ideal customization of broadband-emission metal halide perovskites.
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Affiliation(s)
- Feng Jiang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
- College of Physics, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Zhennan Wu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Min Lu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Yanbo Gao
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Xin Li
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Xue Bai
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Yuan Ji
- College of Physics, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Yu Zhang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
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21
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Zhang K, Zhang L, Saravana Karthikeyan SKS, Kong CY, Zhang F, Guo X, Dang NN, Ramaraj SG, Liu X. Structural, electronic, optical, elastic, thermodynamic and thermal transport properties of Cs 2AgInCl 6 and Cs 2AgSbCl 6 double perovskite semiconductors using a first-principles study. Phys Chem Chem Phys 2023; 25:31848-31868. [PMID: 37968998 DOI: 10.1039/d3cp03795a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
In this study, we employ the framework of first-principles density functional theory (DFT) computations to investigate the physical, electrical, bandgap and thermal conductivity of Cs2AgInCl6-CAIC (type I) and Cs2AgSbCl6-CASC (type II) using the GGA-PBE method. CAIC possesses a direct band gap energy of 1.812 eV, while CASC demonstrates an indirect band gap energy of 0.926 eV. The CAIC and CASC exhibit intriguingly reduced thermal conductivity, which can be attributed to the notable reduction in their respective Debye temperatures, measuring 182 K and 135 K, respectively. The Raman active modes computed under ambient conditions have been compared with real-world data, showing excellent agreement. The thermal conductivity values of CAIC and CASC compounds exhibit quantum mechanical characteristics, with values of 0.075 and 0.25 W m-1 K-1, respectively, at 300 K. It is foreseen that these outcomes will generate investigations concerning phosphors and diodes that rely on single emitters, with the aim of advancing lighting and display technologies in the forthcoming generations.
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Affiliation(s)
- Keqing Zhang
- School of Chemical Engineering, Henan Technical Institute, Zhengzhou, Henan, 450042, P. R. China
| | - Lijun Zhang
- School of Chemical Engineering, Henan Technical Institute, Zhengzhou, Henan, 450042, P. R. China
| | - S K S Saravana Karthikeyan
- Department of Environment and Energy System, Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan
| | - Chang Yi Kong
- Department of Environment and Energy System, Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan
- Department of Applied Chemistry and Biochemical Engineering, Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan
| | - Fuchun Zhang
- School of Physics and Electronic Information, Yan'an University, Yan'an, 716000, China
| | - Xiang Guo
- Science and Technology on Aerospace Chemical Power Laboratory, Hubei Institute of Aerospace Chemotechnology, Xiangyang 441003, Hubei, China.
| | - Nam Nguyen Dang
- Future Materials & Devices Lab., Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, Vietnam
- The Faculty of Environmental and Chemical Engineering, Duy Tan University, Danang, Vietnam
| | - Sankar Ganesh Ramaraj
- Department of Bioengineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8656, Japan.
- Department of Materials Physics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMTS), Thandalam, Chennai - 602105, Tamilnadu, India
| | - Xinghui Liu
- Science and Technology on Aerospace Chemical Power Laboratory, Hubei Institute of Aerospace Chemotechnology, Xiangyang 441003, Hubei, China.
- Division of Research and Development, Lovely Professional University, Phagwara, 144411, India
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22
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Li Q, Xu B, Quan Z. Pressure-Regulated Excitonic Transitions in Emergent Metal Halides. Acc Chem Res 2023; 56:3282-3291. [PMID: 37890133 DOI: 10.1021/acs.accounts.3c00537] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2023]
Abstract
ConspectusEmergent metal halides are generating significant interest as novel optical materials, and their diverse applications have brought them to the spotlight of chemistry and material science. The optical properties of semiconducting metal halides are fundamentally dominated by excitonic transitions, which refer to the complex processes of excitonic formation, self-trapping, as well as subsequent transitions of intersystem crossing (ISC) and internal conversion (IC). In this regard, high pressure has recently opened a new research dimension to regulate excitonic transitions in metal halides via continuous structural modulations, to understand the intriguing excitonic emissions from a new perspective. In this Account, we aim to rationalize the fundamental strategy for modulating and optimizing the optical properties of metal halides based on delicate exciton regulation via high-pressure method. First, the band gaps of metal halides that are directly related to the efficiency of excitonic formation, are accurately modulated through contraction, distortion, and destruction of metal-halogen polyhedra under compression. Then, considerable enhancement of self-trapped exciton emission is demonstrated by inducing proper polyhedral distortions via high-pressure method. Furthermore, the emission energy of metal halides could also be controllably and widely tuned through pressure-modulated excitonic transitions. Upon compression on different metal halides, excitonic IC is promoted with sufficient polyhedral distortions, and different sets of ISC could also be achieved. In the end, we emphasize the significance of high-pressure investigations in uncovering the complex excitonic transitions in emergent metal halides and predicting novel metal halides with desired optical properties at ambient conditions. It is expected that these discussions could inspire researchers in different fields to perform interdisciplinary high-pressure studies on novel functional materials.
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Affiliation(s)
- Qian Li
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, P. R. China
- School of Physics Science and Information Technology, Shandong Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng, Shandong 252000, P. R. China
| | - Bin Xu
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, P. R. China
| | - Zewei Quan
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, Guangdong 518055, P. R. China
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23
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Ma Z, Ji X, Lin S, Chen X, Wu D, Li X, Zhang Y, Shan C, Shi Z, Fang X. Recent Advances and Opportunities of Eco-Friendly Ternary Copper Halides: A New Superstar in Optoelectronic Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2300731. [PMID: 36854310 DOI: 10.1002/adma.202300731] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/19/2023] [Indexed: 06/18/2023]
Abstract
Recently, the newly-emerging lead-free metal-halide materials with less toxicity and superior optoelectronic properties have received wide attention as the safer and potentially more robust alternatives to lead-based perovskite counterparts. Among them, ternary copper halides (TCHs) have become a vital group due to their unique features, including abundant structural diversity, ease of synthesis, unprecedented optoelectronic properties, high abundance, and low cost. Although the recent efforts in this field have made certain progresses, some scientific and technological issues still remain unresolved. Herein, a comprehensive and up-to-date overview of recent progress on the fundamental characteristics of TCH materials and their versatile applications is presented, which contains topics such as: i) crystal and electronic structure features and synthesis strategies; ii) mechanisms of self-trapped excitons, luminescence regulation, and environmental stability; and iii) their burgeoning optoelectronic devices of phosphor-converted white light-emitting diodes (WLEDs), electroluminescent LEDs, anti-counterfeiting, X-ray scintillators, photodetectors, sensors, and memristors. Finally, the current challenges together with future perspectives on the development of TCH materials and applications are also critically described, which is considered to be critical for accelerating the commercialization of these rapidly evolving technologies.
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Affiliation(s)
- Zhuangzhuang Ma
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Xinzhen Ji
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Shuailing Lin
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Xu Chen
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Di Wu
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Xinjian Li
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Yu Zhang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, P. R. China
| | - Chongxin Shan
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Zhifeng Shi
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Xiaosheng Fang
- Department of Materials Science, Institute of Optoelectronics, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, P. R. China
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24
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Wang S, Liu R, Li J, Sun F, Yang Q, Li S, Liu J, Chen J, Cheng P. Achieving Highly Efficient Warm-White Light Emission in All-Inorganic Copper-Silver Halides via Structural Regulation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303501. [PMID: 37537363 PMCID: PMC10558639 DOI: 10.1002/advs.202303501] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/17/2023] [Indexed: 08/05/2023]
Abstract
Single-component metal halides with white light emission are highly attractive for solid-state lighting applications, but it is still challenging to develop all-inorganic lead-free metal halides with high white-light emission efficiency. Herein, by rationally introducing silver (Ag) into zero-dimensional (0D) Cs3 Cu2 Br5 as new structural building unit, a one-dimensional (1D) bimetallic halide Cs6 Cu3 AgBr10 is designed that emits strong warm-white light with an impressive photoluminescence quantum yield (PLQY) of 94.5% and excellent stability. This structural transformation lowers the conduction band minimum while maintaining the localized nature of the valence band maximum, which is crucial in expanding the excitation spectrum and obtaining efficient self-trapped excitons (STEs) emission simultaneously. Detailed spectroscopy studies reveal that the white-light originates from triplet STEs emission, which can be remarkably improved by weakening the strong electron-phonon coupling and thus suppressing phonon-induced non-radiative processes. Moreover, the interesting temperature-dependent emission behavior, together with self-absorption-free property, make Cs6 Cu3 AgBr10 as sensitive luminescent thermometer and high-performance X-ray scintillator, respectively. These findings demonstrate a general approach to achieving effective single-component white-light emitters based on lead-free, all-inorganic metal halides, thereby opening up a new avenue to explore their versatile applications such as lighting, temperature detection and X-ray imaging.
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Affiliation(s)
- Sijia Wang
- State Key Laboratory of Molecular Reaction DynamicsDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023P. R. China
- University of Chinese Academy of SciencesBeijing100039P. R. China
| | - Runze Liu
- Institute of Molecular Sciences and EngineeringInstitute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao266237P. R. China
| | - Juntao Li
- University of Chinese Academy of SciencesBeijing100039P. R. China
- Key Laboratory of Chemical LasersDalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023P. R. China
| | - Fengke Sun
- State Key Laboratory of Molecular Reaction DynamicsDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023P. R. China
- University of Chinese Academy of SciencesBeijing100039P. R. China
| | - Qing Yang
- State Key Laboratory of Molecular Reaction DynamicsDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023P. R. China
| | - Shunshun Li
- State Key Laboratory of Molecular Reaction DynamicsDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023P. R. China
| | - Jianyong Liu
- State Key Laboratory of Molecular Reaction DynamicsDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023P. R. China
- University of Chinese Academy of SciencesBeijing100039P. R. China
| | - Junsheng Chen
- Nano‐Science Center and Department of ChemistryUniversity of CopenhagenUniversitetsparken 5CopenhagenDK‐2100Denmark
| | - Pengfei Cheng
- State Key Laboratory of Molecular Reaction DynamicsDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023P. R. China
- University of Chinese Academy of SciencesBeijing100039P. R. China
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25
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Chen J, Wu H, Huang Y, Xu J, Lu X, Zhou W, Song J, Huang R. Effect of CrF 3 Addition on Photoluminescence Properties of Lead-Free Cs 4SnBr 6-xF x Zero-Dimensional Perovskite. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6309. [PMID: 37763588 PMCID: PMC10532708 DOI: 10.3390/ma16186309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/13/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023]
Abstract
Zero-dimensional (0D) tin halide perovskites, characterized by their broadband and adjustable emissions, high photoluminescence quantum yield, and absence of self-absorption, are crucial for the fabrication of high-efficiency optoelectronic devices, such as LEDs, solar cells, and sensors. Despite these attributes, boosting their emission efficiency and stability poses a significant challenge. In this work, Cr3+-doped Cs4SnBr6-xFx perovskites were synthesized using a water-assisted wet ball-milling method. The effect of CrF3 addition on photoluminescence properties of Cs4SnBr6-xFx Perovskites was investigated. We found that Cr3+-doped Cs4SnBr6-xFx Perovskites exhibit a broad emission band, a substantial Stokes shift, and an efficient green light emission centered at about 525 nm at ambient temperature. The derived photoluminescence quantum yield amounted to as high as 56.3%. In addition, these Cr3+-doped Cs4SnBr6-xFx perovskites outperform their undoped counterparts in terms of thermal stability. Through a comprehensive analysis of photoluminescence measurements, our findings suggested that the elevated photoluminescence quantum yield can be attributed to the enhanced exciton binding energy of self-trapped excitons (STEs) and the suitable electron-phonon coupling resulting from the substantial distortion of [SnBr6]4- octahedra instigated by the addition of CrF3.
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Affiliation(s)
| | | | | | | | | | | | | | - Rui Huang
- School of Materials Science and Engineering, Hanshan Normal University, Chaozhou 521041, China
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26
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Chen R, Wang Z, Pang T, Teng Q, Li C, Jiang N, Zheng S, Zhang R, Zheng Y, Chen D, Yuan F. Ultra-Narrow-Bandwidth Deep-Red Electroluminescence Based on Green Plant-Derived Carbon Dots. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302275. [PMID: 37228040 DOI: 10.1002/adma.202302275] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/11/2023] [Indexed: 05/27/2023]
Abstract
Deep-red light-emitting diodes (DR-LEDs, >660 nm) with high color-purity and narrow-bandwidth emission are promising for full-color displays and solid-state lighting applications. Currently, the DR-LEDs are mainly based on conventional emitters such as organic materials and heavy-metal based quantum dots (QDs) and perovskites. However, the organic materials always suffer from the complicated synthesis, inferior color purity with full-width at half-maximum (FWHM) more than 40 nm, and the QDs and perovskites still suffer from serious problems related to toxicity. Herein, this work reports the synthesis of efficient and high color-purity deep-red carbon dots (CDs) with a record narrow FWHM of 21 nm and a high quantum yield of more than 50% from readily available green plants. Moreover, an exciplex host is further established using a polymer and small molecular blend, which has been shown to be an efficient strategy for producing high color-purity monochrome emission from deep-red CDs via Förster energy transfer (FET). The deep-red CD-LEDs display high color-purity with Commission Internationale de l'Eclairage (CIE) coordinates of (0.692, 0.307). To the best of the knowledge, this is the first report of high color-purity CD-LEDs in the deep-red region, opening the door for the application of CDs in the development of high-resolution light-emitting display technologies.
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Affiliation(s)
- Renjing Chen
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
| | - Zhibin Wang
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
| | - Tao Pang
- Huzhou Key Laboratory of Materials for Energy Conversion and Storage, College of Science, Huzhou University, Zhejiang, Huzhou, 313000, China
| | - Qian Teng
- Key Laboratory of Theoretical and Computational Photochemistry of Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Chenhao Li
- Key Laboratory of Theoretical and Computational Photochemistry of Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Naizhong Jiang
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
| | - Song Zheng
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
| | - Ruidan Zhang
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
| | - Yuanhui Zheng
- Fujian Science and Technology Innovation Laboratory for Optoelectronic Information, Fuzhou, Fujian, 350116, P. R. China
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China
| | - Daqin Chen
- College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fuzhou, 350117, China
- Fujian Science and Technology Innovation Laboratory for Optoelectronic Information, Fuzhou, Fujian, 350116, P. R. China
- Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fuzhou, 350117, China
- Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou, 350117, China
| | - Fanglong Yuan
- Key Laboratory of Theoretical and Computational Photochemistry of Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, China
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27
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Zhou B, Du A, Ding D, Liu Z, Wang Y, Zhong H, Li H, Hu H, Shi Y. Achieving Tunable Cold/Warm White-Light Emission in a Single Perovskite Material with Near-Unity Photoluminescence Quantum Yield. NANO-MICRO LETTERS 2023; 15:207. [PMID: 37651000 PMCID: PMC10471562 DOI: 10.1007/s40820-023-01168-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 07/15/2023] [Indexed: 09/01/2023]
Abstract
Single materials that exhibit efficient and stable white-light emission are highly desirable for lighting applications. This paper reports a novel zero-dimensional perovskite, Rb4CdCl6:Sn2+, Mn2+, which demonstrates exceptional white-light properties including adjustable correlated color temperature, high color rendering index of up to 85, and near-unity photoluminescence quantum yield of 99%. Using a co-doping strategy involving Sn2+ and Mn2+, cyan-orange dual-band emission with complementary spectral ranges is activated by the self-trapped excitons and d-d transitions of the Sn2+ and Mn2+ centers in the Rb4CdCl6 host, respectively. Intriguingly, although Mn2+ ions doped in Rb4CdCl6 are difficult to excite, efficient Mn2+ emission can be realized through an ultra-high-efficient energy transfer between Sn2+ and Mn2+ via the formation of adjacent exchange-coupled Sn-Mn pairs. Benefiting from this efficient Dexter energy transfer process, the dual emission shares the same optimal excitation wavelengths of the Sn2+ centers and suppresses the non-radiative vibration relaxation significantly. Moreover, the relative intensities of the dual-emission components can be modulated flexibly by adjusting the fraction of the Sn2+ ions to the Sn-Mn pairs. This co-doping approach involving short-range energy transfer represents a promising avenue for achieving high-quality white light within a single material.
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Affiliation(s)
- Bo Zhou
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, People's Republic of China
- Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing, Yantai, 264006, People's Republic of China
| | - Aixuan Du
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Dong Ding
- Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing, Yantai, 264006, People's Republic of China
| | - Zexiang Liu
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Ye Wang
- Key Laboratory of Material Physics, School of Physics and Microelectronics, Zhengzhou University, Ministry of Education, Zhengzhou, 450052, People's Republic of China
| | - Haizhe Zhong
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Henan Li
- School of Electronics and Information Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Hanlin Hu
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen, 518060, People's Republic of China.
| | - Yumeng Shi
- School of Electronics and Information Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China.
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28
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He Y, Liu S, Yao Z, Zhao Q, Chabera P, Zheng K, Yang B, Pullerits T, Chen J. Nature of Self-Trapped Exciton Emission in Zero-Dimensional Cs 2ZrCl 6 Perovskite Nanocrystals. J Phys Chem Lett 2023; 14:7665-7671. [PMID: 37603899 PMCID: PMC10476180 DOI: 10.1021/acs.jpclett.3c01878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 08/15/2023] [Indexed: 08/23/2023]
Abstract
Low dimensional perovskite-inspired materials with self-tapped exciton (STE) emission have stimulated a surge of cutting-edge research in optoelectronics. Despite numerous efforts on developing versatile low-dimensional perovskite-inspired materials with efficient STE emissions, there is little emphasis on the intrinsic dynamics of STE-based broad emission in these materials. Here, we investigated the excited state dynamics in zero-dimensional (0D) Cs2ZrCl6 nanocrystals (NCs) with efficient blue STE emission. By using femtosecond transient absorption (fs-TA) spectroscopy, the ultrafast STE formation process within 400 fs is directly observed. Then, the formed STEs relax to an intermediate STE state with a lifetime of ∼180 ps before reaching the emissive STE state with a lifetime of ∼15 μs. Our work offers a comprehensive and precise dynamic picture of STE emission in low-dimensional metal halides and sheds light on extending their potential applications.
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Affiliation(s)
- Yanmei He
- Department
of Chemical Physics and NanoLund, Lund University, P.O. Box 124, 22100 Lund, Sweden
- Nano-Science
Center & Department of Chemistry, University
of Copenhagen, Universitetsparken
5, 2100 Copenhagen, Denmark
| | - Siping Liu
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science, 116023 Dalian, P. R. China
- Guangxi
Key Laboratory of Chemistry and Engineering of Forest Products, School
of Chemistry and Chemical Engineering, Guangxi
Minzu University, Nanning 530006, P. R. China
| | - Zehan Yao
- Department
of Chemical Physics and NanoLund, Lund University, P.O. Box 124, 22100 Lund, Sweden
| | - Qian Zhao
- Department
of Chemistry, Technical University of Denmark, DK-2800 Kongens
Lyngby, Denmark
| | - Pavel Chabera
- Department
of Chemical Physics and NanoLund, Lund University, P.O. Box 124, 22100 Lund, Sweden
| | - Kaibo Zheng
- Department
of Chemical Physics and NanoLund, Lund University, P.O. Box 124, 22100 Lund, Sweden
- Department
of Chemistry, Technical University of Denmark, DK-2800 Kongens
Lyngby, Denmark
| | - Bin Yang
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science, 116023 Dalian, P. R. China
| | - Tönu Pullerits
- Department
of Chemical Physics and NanoLund, Lund University, P.O. Box 124, 22100 Lund, Sweden
| | - Junsheng Chen
- Department
of Chemical Physics and NanoLund, Lund University, P.O. Box 124, 22100 Lund, Sweden
- Nano-Science
Center & Department of Chemistry, University
of Copenhagen, Universitetsparken
5, 2100 Copenhagen, Denmark
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29
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Wu H, Lin Z, Song J, Zhang Y, Guo Y, Zhang W, Huang R. Boosting the Self-Trapped Exciton Emission in Cs 4SnBr 6 Zero-Dimensional Perovskite via Rapid Heat Treatment. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2259. [PMID: 37570576 PMCID: PMC10420998 DOI: 10.3390/nano13152259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/25/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023]
Abstract
Zero-dimensional (0D) tin halide perovskites feature extraordinary properties, such as broadband emission, high photoluminescence quantum yield, and self-absorption-free characteristics. The innovation of synthesis approaches for high-quality 0D tin halide perovskites has facilitated the flourishing development of perovskite-based optoelectronic devices in recent years. However, discovering an effective strategy to further enhance their emission efficiency remains a considerable challenge. Herein, we report a unique strategy employing rapid heat treatment to attain efficient self-trapped exciton (STE) emission in Cs4SnBr6 zero-dimensional perovskite. Compared to the pristine Cs4SnBr6, rapid thermal treatment (RTT) at 200 °C for a duration of 120 s results in an augmented STE emission with the photoluminescence (PL) quantum yield rising from an initial 50.1% to a substantial 64.7%. Temperature-dependent PL spectra analysis, Raman spectra, and PL decay traces reveal that the PL improvement is attributed to the appropriate electron-phonon coupling as well as the increased binding energies of STEs induced by the RTT. Our findings open up a new avenue for efficient luminescent 0D tin-halide perovskites toward the development of efficient optoelectronic devices based on 0D perovskites.
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Affiliation(s)
| | | | | | | | | | | | - Rui Huang
- School of Materials Science and Engineering, Hanshan Normal University, Chaozhou 521041, China (Y.G.)
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30
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Grandhi GK, Dhama R, Viswanath NSM, Lisitsyna ES, Al-Anesi B, Dana J, Sugathan V, Caglayan H, Vivo P. Role of Self-Trapped Excitons in the Broadband Emission of Lead-Free Perovskite-Inspired Cu 2AgBiI 6. J Phys Chem Lett 2023; 14:4192-4199. [PMID: 37115195 PMCID: PMC10184165 DOI: 10.1021/acs.jpclett.3c00439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The perovskite-inspired Cu2AgBiI6 (CABI) absorber shows promise for low-toxicity indoor photovoltaics. However, the carrier self-trapping in this material limits its photovoltaic performance. Herein, we examine the self-trapping mechanism in CABI by analyzing the excited-state dynamics of its absorption band at 425 nm, which is responsible for the self-trapped exciton emission, using a combination of photoluminescence and ultrafast transient absorption spectroscopies. Photoexcitation in CABI rapidly generates charge carriers in the silver iodide lattice sites, which localize into the self-trapped states and luminesce. Furthermore, a Cu-Ag-I-rich phase that exhibits similar spectral responses as CABI is synthesized, and a comprehensive structural and photophysical study of this phase provides insights into the nature of the excited states of CABI. Overall, this work explains the origin of self-trapping in CABI. This understanding will play a crucial role in optimizing its optoelectronic properties. It also encourages compositional engineering as the key to suppressing self-trapping in CABI.
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Affiliation(s)
- G Krishnamurthy Grandhi
- Hybrid Solar Cells, Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33014 Tampere University, Finland
| | - Rakesh Dhama
- Faculty of Engineering and Natural Sciences, Tampere University, 33720 Tampere, Finland
| | | | - Ekaterina S Lisitsyna
- Faculty of Engineering and Natural Sciences, Tampere University, Korkeakoulunkatu 8, 33720 Tampere, Finland
| | - Basheer Al-Anesi
- Hybrid Solar Cells, Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33014 Tampere University, Finland
| | - Jayanta Dana
- Faculty of Engineering and Natural Sciences, Tampere University, Korkeakoulunkatu 8, 33720 Tampere, Finland
| | - Vipinraj Sugathan
- Hybrid Solar Cells, Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33014 Tampere University, Finland
| | - Humeyra Caglayan
- Faculty of Engineering and Natural Sciences, Tampere University, 33720 Tampere, Finland
| | - Paola Vivo
- Hybrid Solar Cells, Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33014 Tampere University, Finland
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31
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Zhao X, Fu P, Li P, Du H, Zhu J, Ge C, Yang L, Song B, Wu H, Jin T, Guo Q, Wang L, Li J, Xiao Z, Chang J, Niu G, Luo J, Tang J. Solution-Processed Hybrid Europium (II) Iodide Scintillator for Sensitive X-Ray Detection. RESEARCH (WASHINGTON, D.C.) 2023; 6:0125. [PMID: 37223485 PMCID: PMC10202385 DOI: 10.34133/research.0125] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 03/29/2023] [Indexed: 01/01/2024]
Abstract
Lead halide perovskite nanocrystals have recently demonstrated great potential as x-ray scintillators, yet they still suffer toxicity issues, inferior light yield (LY) caused by severe self-absorption. Nontoxic bivalent europium ions (Eu2+) with intrinsically efficient and self-absorption-free d-f transition are a prospective replacement for the toxic Pb2+. Here, we demonstrated solution-processed organic-inorganic hybrid halide BA10EuI12 (BA denotes C4H9NH4+) single crystals for the first time. BA10EuI12 was crystallized in a monoclinic space group of P21/c, with photoactive sites of [EuI6]4- octahedra isolated by BA+ cations, which exhibited high photoluminescence quantum yield of 72.5% and large Stokes shift of 97 nm. These properties enable an appreciable LY value of 79.6% of LYSO (equivalent to ~27,000 photons per MeV) for BA10EuI12. Moreover, BA10EuI12 shows a short excited-state lifetime (151 ns) due to the parity-allowed d-f transition, which boosts the potential of BA10EuI12 for use in real-time dynamic imaging and computer tomography applications. In addition, BA10EuI12 demonstrates a decent linear scintillation response ranging from 9.21 μGyair s-1 to 145 μGyair s-1 and a detection limit as low as 5.83 nGyair s-1. The x-ray imaging measurement was performed using BA10EuI12 polystyrene (PS) composite film as a scintillation screen, which exhibited clear images of objects under x-ray irradiation. The spatial resolution was determined to be 8.95 lp mm-1 at modulation transfer function = 0.2 for BA10EuI12/PS composite scintillation screen. We anticipate that this work will stimulate the exploration of d-f transition lanthanide metal halides for sensitive x-ray scintillators.
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Affiliation(s)
- Xue Zhao
- School of Microelectronics, Xidian University, Xi’an 710071, China
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Pengfei Fu
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Pan Li
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Hainan Du
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jinsong Zhu
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Ciyu Ge
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Longbo Yang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Boxiang Song
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Haodi Wu
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Tong Jin
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Qingxun Guo
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Liang Wang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jinghui Li
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zewen Xiao
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jingjing Chang
- School of Microelectronics, Xidian University, Xi’an 710071, China
| | - Guangda Niu
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
- China Optics Valley Laboratory, Wuhan 430074, China
| | - Jiajun Luo
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jiang Tang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
- China Optics Valley Laboratory, Wuhan 430074, China
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
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32
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Shi Y, Fu Y, Ma Z, Zhao D, Wang K, Xiao G, Zou B. Pressure Regulating Self-Trapped States toward Remarkable Emission Enhancement of Zero-Dimensional Lead-Free Halides Nanocrystals. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300455. [PMID: 36808884 DOI: 10.1002/smll.202300455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/04/2023] [Indexed: 05/25/2023]
Abstract
Copper(I)-based halides have recently attracted increasing attention as a substitute for lead halides, owing to their nontoxicity, abundance, unique structure, and optoelectric properties. However, exploring an effective strategy to further improve their optical activities and revealing structure-optical property relationships still remain a great concern. Here, by using high pressure technique, a remarkable enhancement of self-trapped exciton (STE) emission associated with the energy exchange between multiple self-trapped states in zero-dimensional lead-free halide Cs3 Cu2 I5 NCs is successfully achieved. Furthermore, high-pressure processing endows the piezochromism of Cs3 Cu2 I5 NCs by experiencing a white light and a strong purple light emission, which is able to be stabilized at near-ambient pressure. The distortion of [Cu2 I5 ] clusters composing of tetrahedral [CuI4 ] and trigonal planar [CuI3 ] and the decreased Cu-Cu distance between the adjacent Cu-I tetrahedron and triangle are responsible for the significant STEs emission enhancement under high pressure. The experiments combined with first-principles calculations not only shed light on the structure-optical property relationships of [Cu2 I5 ] clusters halide, but also provide guidance for improving emission intensity that is highly desirable in solid-state lighting applications.
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Affiliation(s)
- Yue Shi
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P. R. China
| | - Yuan Fu
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P. R. China
| | - Zhiwei Ma
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P. R. China
| | - Dianlong Zhao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P. R. China
| | - Kai Wang
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng, 252000, P. R. China
| | - Guanjun Xiao
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P. R. China
| | - Bo Zou
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, P. R. China
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33
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Yang R, Yang D, Wang M, Zhang F, Ji X, Zhang M, Jia M, Chen X, Wu D, Li XJ, Zhang Y, Shi Z, Shan C. High-Efficiency and Stable Long-Persistent Luminescence from Undoped Cesium Cadmium Chlorine Crystals Induced by Intrinsic Point Defects. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207331. [PMID: 36825674 DOI: 10.1002/advs.202207331] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 02/11/2023] [Indexed: 05/27/2023]
Abstract
Application of long-persistent luminescence (LPL) materials in many technological fields is in the spotlight. However, the exploration of undoped persistent luminescent materials with high emission efficiency, robust stability, and long persistent duration remains challenging. Here, inorganic cesium cadmium chlorine (CsCdCl3 ) is developed, featuring remarkable LPL characteristics at room temperature, which is synthesized by a facile hydrothermal method. Excited by ultraviolet light, the CsCdCl3 crystals exhibit an intense yellow emission with a large photoluminescence quantum yield of ≈90%. Different from the reported systems with lanthanides or transition metals doping, the CsCdCl3 crystals without dopants perform yellow LPL with a long duration of 6000 s. Joint experiment-theory characterizations reveal the intrinsic point defects of CsCdCl3 act as the trap centers of excited electrons and the carrier de-trapping process from such trap sites to localized emission centers contributes to the LPL. Encouraged by the attractive fluorescence and persistent luminescence as well as good stability of CsCdCl3 against environment oxygen/moisture (75%), heat (100 °C for 10 h), and ultraviolet light irradiation, an effective dual-mode information storage-reading application is demonstrated. The results open up a new frontier for exploring LPL materials without dopants and provide an opportunity for advanced information storage compatible for practical applications.
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Affiliation(s)
- Ruoting Yang
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Dongwen Yang
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Meng Wang
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Fei Zhang
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Xinzhen Ji
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Mengyao Zhang
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Mochen Jia
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Xu Chen
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Di Wu
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Xin Jian Li
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Yu Zhang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Qianjin Street 2699, Changchun, 130012, P. R. China
| | - Zhifeng Shi
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Chongxin Shan
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
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Jang C, Kim K, Nho HW, Lee SM, Mubarok H, Han JH, Kim H, Lee D, Jang Y, Lee MH, Kwon OH, Kwak SK, Im WB, Song MH, Park J. Synthesis of Thermally Stable and Highly Luminescent Cs 5 Cu 3 Cl 6 I 2 Nanocrystals with Nonlinear Optical Response. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206668. [PMID: 36703517 DOI: 10.1002/smll.202206668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/19/2022] [Indexed: 06/18/2023]
Abstract
Low-dimensional Cu(I)-based metal halide materials are gaining attention due to their low toxicity, high stability and unique luminescence mechanism, which is mediated by self-trapped excitons (STEs). Among them, Cs5 Cu3 Cl6 I2 , which emits blue light, is a promising candidate for applications as a next-generation blue-emitting material. In this article, an optimized colloidal process to synthesize uniform Cs5 Cu3 Cl6 I2 nanocrystals (NCs) with a superior quantum yield (QY) is proposed. In addition, precise control of the synthesis parameters, enabling anisotropic growth and emission wavelength shifting is demonstrated. The synthesized Cs5 Cu3 Cl6 I2 NCs have an excellent photoluminescence (PL) retention rate, even at high temperature, and exhibit high stability over multiple heating-cooling cycles under ambient conditions. Moreover, under 850-nm femtosecond laser irradiation, the NCs exhibit three-photon absorption (3PA)-induced PL, highlighting the possibility of utilizing their nonlinear optical properties. Such thermally stable and highly luminescent Cs5 Cu3 Cl6 I2 NCs with nonlinear optical properties overcome the limitations of conventional blue-emitting nanomaterials. These findings provide insights into the mechanism of the colloidal synthesis of Cs5 Cu3 Cl6 I2 NCs and a foundation for further research.
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Affiliation(s)
- Changhee Jang
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Kangyong Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Hak-Won Nho
- Department of Chemistry, College of Natural Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| | - Seung Min Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Hanif Mubarok
- Department of Chemistry, University of Ulsan, Ulsan, 44610, Republic of Korea
| | - Joo Hyeong Han
- Division of Materials Science and Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Hyeonjung Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Dongryeol Lee
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Yangpil Jang
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Min Hyung Lee
- Department of Chemistry, University of Ulsan, Ulsan, 44610, Republic of Korea
| | - Oh-Hoon Kwon
- Department of Chemistry, College of Natural Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| | - Sang Kyu Kwak
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Won Bin Im
- Division of Materials Science and Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Myoung Hoon Song
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Jongnam Park
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
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35
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Zhang Z, Liao JF, Xing G. Regulating the coordination geometry of polyhedra in zero-dimensional metal halides for tunable emission. NANOSCALE 2023; 15:5241-5248. [PMID: 36790119 DOI: 10.1039/d2nr06975j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Although self-trapped exciton (STE) emissions in zero-dimensional metal halides have been intensively investigated, the understanding of the relationship between the coordination geometries of the metal halides and their photophysical properties is still lacking. In this work, we successfully synthesized single crystals, with strong STE emissions, of the bimetallic materials (Bmpip)9[Pb3Br11](ZnBr4)2 (PbZn-Br) and (Bmpip)9[Pb3Br11](MnBr4)2 (PbMn-Br), where Bmpip+ is 1-butyl-1-methyl-piperidinium (C10H22N+), via a facile anti-solvent crystallization strategy. With respect to the monometallic material, (Bmpip)2[PbBr4] (Pb-Br), the introduction of Zn2+ and Mn2+ effectively alters the coordination geometry of the lead bromide polyhedral configuration from a PbBr42- tetrahedron to a Pb3Br115- trimer. As a result, the maximum emission peak of PbZn-Br exhibits an obvious red shift and the full width at half maximum is almost two-fold wider than that of Pb-Br due to stronger electron-phonon coupling. Moreover, due to the intrinsic emission of the Mn2+ ions, an intriguing tunable emission was achieved in PbMn-Br with an impressively high photoluminescence quantum yield of up to 67%. The ultra-stable PbMn-Br single crystals show potential as an ideal down-conversion phosphor for use in UV-pumped white light-emitting diode devices.
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Affiliation(s)
- Zhipeng Zhang
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Macau, 999078 P. R. China.
| | - Jin-Feng Liao
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Macau, 999078 P. R. China.
| | - Guichuan Xing
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Macau, 999078 P. R. China.
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36
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Yang C, Ke B, Wei Q, Ge S, He B, Zhong X, Zou B. Luminescence and Mechanism of Mn 2+ Substitution in Cs 7Cd 3Br 13 with Two Types of Coordination Number. Inorg Chem 2023; 62:3075-3083. [PMID: 36751993 DOI: 10.1021/acs.inorgchem.2c03847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Cadmium-based perovskite materials as promising optoelectronic materials have been widely explored, but there are still some special microscopic interaction-dependent properties not fully understood. Here, we successfully synthesized Cs7(Cd1-XMnX)3Br13 crystal by a simple hydrothermal method. In Cs7Cd3Br13 crystals with their intrinsic self-trapped exciton (STE) emission, Cd2+ ions stay in both different coordination sites, and partial replacement of Cd2+ with Mn2+ can modify their luminescence properties significantly. The luminescence peak position of the doped sample was adjusted from 610 nm in the undoped sample to 577 nm in the doped one by the combination of STE and Mn d-d transition, with enhanced photoluminescence quantum yield (PLQY) of ∼50% at a Mn precursor ratio of 40%. Their magnetic responses occur from the coexisting ferromagnetic (FM) and antiferromagnetic (AFM) coupling of Mn pairs in four and six coordination sites, modifying its whole emission profile. This material is valuable for studying the structure-optical properties and finding applications in optoelectronic devices.
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Affiliation(s)
- Chengzhi Yang
- School of Physical Science and Technology; State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China
| | - Bao Ke
- School of Physical Science and Technology; State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China
| | - Qilin Wei
- School of Physical Science and Technology; State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China
| | - Shuaigang Ge
- School of Physical Science and Technology; State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China
| | - Bin He
- School of Physical Science and Technology; State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China
| | - Xianci Zhong
- School of Physical Science and Technology; State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China
| | - Bingsuo Zou
- School of Physical Science and Technology; State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, School of Resources, Environments and Materials, Guangxi University, Nanning 530004, China
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37
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Mao X, Wang Z, Zhang F, Yin H, Xu X, Chen J, Chen Z, Luo J, Han K, Zhang R. All-Inorganic Zero-Dimensional Sb 3+-Doped Rb 2ScCl 5(H 2O) Perovskite Single Crystals: Efficient Self-Trapped Exciton Emission and X-ray Detection. J Phys Chem Lett 2023; 14:1521-1527. [PMID: 36745062 DOI: 10.1021/acs.jpclett.2c03912] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Zero-dimensional (0D) halide perovskites have attracted extensive attention for their potential applications in solid-state lighting and X-ray detection due to their fascinating optoelectronic properties and convenient solution processability. Herein, we report the synthesis and photophysical properties of high-quality Sb3+-doped 0D Rb2ScCl5(H2O) perovskite single crystals. The pristine crystals exhibit weak yellow self-trapped exciton (STE) emission peaking at 632 nm. The emission quantum yield can be dramatically enhanced from less than 1% to about 53% via Sb3+ doping. Spectroscopic characterizations indicate that the photoluminescence enhancement is a result of the efficient energy transfer from Sb3+ to the emissive STEs. Additionally, 0.2%Sb3+:Rb2ScCl5(H2O) single crystals exhibit potential application in direct X-ray detection with a high sensitivity of 58.5 μC Gy-1 cm-2.
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Affiliation(s)
- Xin Mao
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, People's Republic of China
| | - Zhongyi Wang
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, People's Republic of China
| | - Fen Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People's Republic of China
| | - Hong Yin
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, People's Republic of China
| | - Xin Xu
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, People's Republic of China
| | - Junsheng Chen
- Nano-Science Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Zhen Chen
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, People's Republic of China
| | - Junhua Luo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People's Republic of China
| | - Keli Han
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, People's Republic of China
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023, People's Republic of China
| | - Ruiling Zhang
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, People's Republic of China
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38
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Shi YJ, Yang X, He HR, Liao WM, Zhou HQ, Chung LH, Yu L, He J. Water-stable halide coordination polymers with dual self-trapped exciton emissions for dual-mode Hg 2+ sensing. Inorg Chem Front 2023. [DOI: 10.1039/d2qi02766f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
An acid- and base-stable halide coordination polymer exhibits excitation-dependent dual self-trapped exciton emissions and colorimetric and turn-off sensing on Hg2+ ions.
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Affiliation(s)
- Yin-Jing Shi
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
| | - Xianghua Yang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
| | - Hou-Rong He
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
| | - Wei-Ming Liao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
| | - Hua-Qun Zhou
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
| | - Lai-Hon Chung
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
| | - Lin Yu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
| | - Jun He
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
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39
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Tan J, Li D, Zhu J, Han N, Gong Y, Zhang Y. Self-trapped excitons in soft semiconductors. NANOSCALE 2022; 14:16394-16414. [PMID: 36317508 DOI: 10.1039/d2nr03935d] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Self-trapped excitons (STEs) have attracted tremendous attention due to their intriguing properties and potential optoelectronic applications. STEs are formed from the lattice distortion induced by the strong electron (exciton)-phonon coupling in soft semiconductors upon photoexcitation, which features in broadband photoluminescence (PL) emission spectra with a large Stokes shift. Recently, significant progress has been achieved in this field but many remain challenges that need to be solved, including the understanding of the underlying physical mechanism, tuning of the performance, and device applications. Along these lines, for the first time, systematic experimental characterizations and advanced theoretical calculations are presented in this review to shed light on the physical mechanism. The possibility of tuning the STEs through multiple degrees of freedom is also presented, along with an overview of the STE-based emerged applications and future research perspectives.
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Affiliation(s)
- Jianbin Tan
- College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, P.R. China.
| | - Delong Li
- College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, P.R. China.
| | - Jiaqi Zhu
- College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, P.R. China.
| | - Na Han
- College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, P.R. China.
| | - Youning Gong
- College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, P.R. China.
| | - Yupeng Zhang
- College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, P.R. China.
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40
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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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41
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Zhou B, Liu Z, Fang S, Nie J, Zhong H, Hu H, Li H, Shi Y. Emission Mechanism of Self-Trapped Excitons in Sb 3+-Doped All-Inorganic Metal-Halide Perovskites. J Phys Chem Lett 2022; 13:9140-9147. [PMID: 36165781 DOI: 10.1021/acs.jpclett.2c02759] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Sb3+ doping confers highly efficient and color-diverse broadband light emission to all-inorganic metal-halide perovskites. However, the emission mechanism is still under debate. Herein, a trace amount of Sb3+ ions (<0.1% atomic percentage) doping in the typical all-inorganic perovskites Cs2NaInCl6, Rb3InCl6, and Cs2InCl5·H2O allows universal observation of the fine structure in the photoluminescence excitation spectrum of the ns2 electron. A lifetime mapping method was utilized to reveal the origin of broadband emission triggered by Sb3+ doping, by which various fluorescence components can be differentiated. In particular, free-exciton emission was identified at the high-energy end of the broadband emission for all three doped systems. The excitation-energy- and temperature-dependent fluorescence decay further indicates the existence and origin of self-trapped states. The observed structural and vibrational symmetry-dependent emission behaviors suggest dipole interactions can dramatically alter Stokes-shift energy and modulate the light-emitting wavelength.
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Affiliation(s)
- Bo Zhou
- School of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Zexiang Liu
- School of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Shaofan Fang
- School of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Jingheng Nie
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, P. R. China
| | - Haizhe Zhong
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, P. R. China
| | - Hanlin Hu
- Hoffman Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518060, P. R. China
| | - Henan Li
- School of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Yumeng Shi
- School of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, P. R. China
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42
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Cao P, Zheng H, Wu P. Multicolor ultralong phosphorescence from perovskite-like octahedral α-AlF 3. Nat Commun 2022; 13:5712. [PMID: 36175437 PMCID: PMC9522726 DOI: 10.1038/s41467-022-33540-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 09/22/2022] [Indexed: 11/29/2022] Open
Abstract
Designing organic fluorescent and phosphorescent materials based on various core fluorophore has gained great attention, but it is unclear whether similar luminescent units exist for inorganic materials. Inspired by the BX6 octahedral structure of luminescent metal halide perovskites (MHP), here we propose that the BX6 octahedron may be a core structure for luminescent inorganic materials. In this regard, excitation-dependent color-tunable phosphorescence is discovered from α-AlF3 featuring AlF6 octahedron. Through further exploration of the BX6 unit by altering the dimension and changing the center metal (B) and ligand (X), luminescence from KAlF4, (NH4)3AlF6, AlCl3, Al(OH)3, Ga2O3, InCl3, and CdCl2 are also discovered. The phosphorescence of α-AlF3 can be ascribed to clusterization-triggered emission, i.e., weak through space interaction of the n electrons of F atoms bring close proximity in the AlF6 octahedra (inter/intra). These discoveries will deepen the understanding and contribute to further development of BX6 octahedron-based luminescent materials. Unravelling the origin of emission in luminescent inorganic materials is challenging. Here, the authors report that AlF6 octahedrons exhibit excitation-dependent color-tunable phosphorescence; structurally related compounds are also luminescent.
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Affiliation(s)
- Peisheng Cao
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Haoyue Zheng
- Analytical & Testing Center, Sichuan University, Chengdu, 610064, China
| | - Peng Wu
- College of Chemistry, Sichuan University, Chengdu, 610064, China. .,Analytical & Testing Center, Sichuan University, Chengdu, 610064, China.
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43
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Li DY, Sun YM, Wang XY, Wang NN, Zhang XY, Yue CY, Lei XW. Zero-Dimensional Hybrid Indium Halides with Efficient and Tunable White-Light Emissions. J Phys Chem Lett 2022; 13:6635-6643. [PMID: 35838645 DOI: 10.1021/acs.jpclett.2c01549] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Two-dimensional hybrid lead perovskites have attracted a great deal of attention in white-light-emitting diodes, but the serious toxicity of Pb2+ and the limited photoluminescence quantum yield (PLQY) still restrict further optoelectronic application. To address these issues, a new combining photon strategy was proposed to achieve highly efficient broadband white-light emission in a new family of zero-dimensional (0D) indium halides based on an [InCl6]3- octahedron. Remarkably, these 0D halides display dual-band white-light emission derived from the synergistic work of blue- and yellow-light-emitting bands, which can be ascribed to the radiative recombination of bound excitons in organic cations and self-trapped excitons in inorganic anions, respectively, based on spectroscopy and theoretical studies. In-depth first-principles calculation demonstrates that the increased structural deformability effectively improves the PLQY from 7.01% to 18.56%. As a proof of concept, this work provides a profound understanding for advancing the rational design of novel single-component 0D lead-free halides as high-performance white-light emitters.
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Affiliation(s)
- Dong-Yang Li
- School of Chemistry, Chemical Engineering and Materials, Jining University, Qufu, Shandong 273155, P. R. China
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Yu-Ming Sun
- School of Chemistry, Chemical Engineering and Materials, Jining University, Qufu, Shandong 273155, P. R. China
| | - Xing-Yu Wang
- School of Chemistry, Chemical Engineering and Materials, Jining University, Qufu, Shandong 273155, P. R. China
| | - Nan-Nan Wang
- School of Chemistry, Chemical Engineering and Materials, Jining University, Qufu, Shandong 273155, P. R. China
| | - Xiao-Yang Zhang
- School of Chemistry, Chemical Engineering and Materials, Jining University, Qufu, Shandong 273155, P. R. China
| | - Cheng-Yang Yue
- School of Chemistry, Chemical Engineering and Materials, Jining University, Qufu, Shandong 273155, P. R. China
| | - Xiao-Wu Lei
- School of Chemistry, Chemical Engineering and Materials, Jining University, Qufu, Shandong 273155, P. R. China
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44
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Sun F, Liu T, Ran P, Chen X, Jiang T, Shen W, Liu X, Yang YM. Top-Emitting Microcavity Light-Emitting Diodes Based on All-Thermally Evaporated Lead-Free Copper Halide Self-Trapped-Exciton Emitters. J Phys Chem Lett 2022; 13:3431-3437. [PMID: 35411775 DOI: 10.1021/acs.jpclett.2c00740] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Lead-free metal halide light-emitting diodes (LEDs) based on cesium copper halide (CsCu2I3) self-trapped-exciton (STE) emissions show great potential in lighting and color display applications, especially because of their nontoxicity and earth abundance. However, so far, the efficiency and color purity of CsCu2I3-based LEDs remain low. Here we demonstrate the emission of a CsCu2I3 emitter can be enhanced and narrowed in a top-emitting microcavity device. Consequently, the CsCu2I3-based LED device with the assistance of a top-emitting microcavity has significantly narrowed and enhanced the emission spectrum with a full width at half-maximum of 59 nm and a maximum forward brightness of 14767 cd m-2. To the best of our knowledge, this work achieves the narrowest CsCu2I3 LED spectra and demonstrates the potential of employing the microcavity effect to increase the efficiency and color purity of STE-based light-emitting devices.
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Affiliation(s)
- Fangling Sun
- State Key Laboratory of Modern Optical Instrumentation, Institute for Advanced Photonics, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Tianyu Liu
- State Key Laboratory of Modern Optical Instrumentation, Institute for Advanced Photonics, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Peng Ran
- State Key Laboratory of Modern Optical Instrumentation, Institute for Advanced Photonics, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xu Chen
- State Key Laboratory of Modern Optical Instrumentation, Institute for Advanced Photonics, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Tingming Jiang
- State Key Laboratory of Modern Optical Instrumentation, Institute for Advanced Photonics, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Weidong Shen
- State Key Laboratory of Modern Optical Instrumentation, Institute for Advanced Photonics, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xu Liu
- State Key Laboratory of Modern Optical Instrumentation, Institute for Advanced Photonics, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yang Michael Yang
- State Key Laboratory of Modern Optical Instrumentation, Institute for Advanced Photonics, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
- Intelligent Optics & Photonics Research Center, Jiaxing Institute of Zhejiang University, Jiaxing 314041, China
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