1
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Chen K, Liu D, Lu W, Zhuo K, Li G. Surface and Interface Engineering for Highly Stable CsPbBr 3/ZnS Core/Shell Nanocrystals. Inorg Chem 2024; 63:2247-2256. [PMID: 38232766 DOI: 10.1021/acs.inorgchem.3c04210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Shelling with chalcogenides on the surface of lead halide perovskite (LHP) nanocrystals (NCs) is believed to be an effective approach to increase their stability under high-moisture/aqueous conditions, which is important for LHP NC-based optoelectronic devices. However, it is still a challenge to prepare high-quality LHP/chalcogenide core/shell NCs with moisture/aqueous stability. In this work, a surface-defect-induced strategy is carried out to facilitate the adsorption of Br- ions and subsequently Zn2+ ions to preform a bipolar surface, which reduces the energy barrier at the CsPbBr3/ZnS interface and promotes the epitaxial growth of the ZnS shell layer. The aqueous stability of the as-received NCs shows an increase of over 12 times compared to that of the original one. Likewise, Mn2+ ions are introduced to further reduce the geometric symmetry mismatch and defect density at the CsPbBr3/ZnS interface. Interestingly, aqueous stability characterizations illustrate negligible degradation even after 230 min of ultrasonication, suggesting their outstanding stability. This work proposes an effective approach to prepare high-quality LHP/chalcogenide core/shell NCs, which possess great potential in the fabrication of stable optoelectronic devices.
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Affiliation(s)
- Keqiang Chen
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, P. R. China
- Zhejiang Institute, China University of Geosciences, Hangzhou 311305, P. R. China
- Shenzhen Research Institute, China University of Geosciences, Shenzhen 518052, P. R. China
| | - Dan Liu
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, P. R. China
| | - Weiqi Lu
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, P. R. China
| | - Kaihuai Zhuo
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, P. R. China
| | - Guogang Li
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, P. R. China
- Zhejiang Institute, China University of Geosciences, Hangzhou 311305, P. R. China
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2
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Jin N, Sun Y, Shi W, Wang P, Nagaoka Y, Cai T, Wu R, Dube L, Nyiera HN, Liu Y, Mani T, Wang X, Zhao J, Chen O. Type-I CdS/ZnS Core/Shell Quantum Dot-Gold Heterostructural Nanocrystals for Enhanced Photocatalytic Hydrogen Generation. J Am Chem Soc 2023; 145:21886-21896. [PMID: 37768875 DOI: 10.1021/jacs.3c06065] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
Developing Type-I core/shell quantum dots is of great importance toward fabricating stable and sustainable photocatalysts. However, the application of Type-I systems has been limited due to the strongly confined photogenerated charges by the energy barrier originating from the wide-bandgap shell material. In this project, we found that through the decoration of Au satellite-type domains on the surface of Type-I CdS/ZnS core/shell quantum dots, such an energy barrier can be effectively overcome and an over 400-fold enhancement of photocatalytic H2 evolution rate was achieved compared to bare CdS/ZnS quantum dots. Transient absorption spectroscopic studies indicated that the charges can be effectively extracted and subsequently transferred to surrounding molecular substrates in a subpicosecond time scale in such hybrid nanocrystals. Based on density functional theory calculations, the ultrafast charge separation rates were ascribed to the formation of intermediate Au2S layer at the semiconductor-metal interface, which can successfully offset the energy confinement introduced by the ZnS shell. Our findings not only provide insightful understandings on charge carrier dynamics in semiconductor-metal heterostructural materials but also pave the way for the future design of quantum dot-based hybrid photocatalytic systems.
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Affiliation(s)
- Na Jin
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Yonglei Sun
- Institute of Materials Science, University of Connecticut, Storrs Mansfield, Connecticut 06269, United States
| | - Wenwu Shi
- School of Physical Science and Technology, Southwest University, Chongqing 400715, People's Republic of China
- Institute of Information Technology, Shenzhen Institute of Information Technology, Shenzhen 518172, China
| | - Ping Wang
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials of the Ministry of Education, College of Chemistry, Jilin Normal University, Changchun 130103, China
| | - Yasutaka Nagaoka
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Tong Cai
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Rongzhen Wu
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Lacie Dube
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Hawi N Nyiera
- Department of Chemistry, University of Connecticut, Storrs Mansfield, Connecticut 06269, United States
| | - Yuzi Liu
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Tomoyasu Mani
- Department of Chemistry, University of Connecticut, Storrs Mansfield, Connecticut 06269, United States
| | - Xinzhong Wang
- Institute of Information Technology, Shenzhen Institute of Information Technology, Shenzhen 518172, China
| | - Jing Zhao
- Institute of Materials Science, University of Connecticut, Storrs Mansfield, Connecticut 06269, United States
- Department of Chemistry, University of Connecticut, Storrs Mansfield, Connecticut 06269, United States
| | - Ou Chen
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
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3
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Zhang W, Wu H, Zeng F, Wang Y, Tang X, Niu X, Fan J. Highly Thermally Sensitive Cascaded Wannier-Mott Exciton Ionization/Carrier Localization in Manganese-Doped Perovskite Nanocrystals. J Phys Chem Lett 2023; 14:1684-1692. [PMID: 36757171 DOI: 10.1021/acs.jpclett.2c03794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Transition-metal doping in perovskite nanocrystals strongly alters the photophysical properties of these nanocrystals. However, the details of the underlying thermal and optical processes within such an intriguing symmetry-breaking nanosystem are far from clear. Herein, we study the sensitively temperature-dependent and highly competent delocalized exciton and transition-metal ion-captured carrier recombination processes in manganese-doped CsPbBr0.6Cl2.4 nanocrystals. The combined experimental and theoretical studies reveal that both the exciton ionization and capture of the band-edge carriers by the manganese ions play the dominant roles in determining the proportion of the manganese ions-dominated recombination process. A density functional theory calculation of the temporal fluctuation of the manganese ions-accommodated localized orbitals further confirms that the thermally enhanced nonadiabatic electron-phonon coupling promotes the probability of the carrier localization. These findings reveal the respective crucial roles of the exciton ionization and carrier capture in the localized recombination process in the transition-metal-doped semiconductor nanocrystals.
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Affiliation(s)
- Wenxia Zhang
- School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China
| | - Huaxin Wu
- School of Physics, Southeast University, Nanjing 211189, P. R. China
| | - Fujia Zeng
- School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China
| | - Yuchan Wang
- School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China
| | - Xiaosheng Tang
- School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China
| | - Xianghong Niu
- New Energy Technology Engineering Laboratory of Jiangsu Province & School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, P. R. China
| | - Jiyang Fan
- School of Physics, Southeast University, Nanjing 211189, P. R. China
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4
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Lee M, Chung H, Hong SV, Woo HY, Chae JY, Yoon TY, Diroll BT, Paik T. Dynamically tunable multicolor emissions from zero-dimensional Cs 3LnCl 6 (Ln: europium and terbium) nanocrystals with wide color gamut. NANOSCALE 2023; 15:1513-1521. [PMID: 36472217 DOI: 10.1039/d2nr04771c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
This study demonstrates dynamically tunable multicolor emissions from a single component, zero-dimensional (0-D) cesium europium chloride (Cs3EuCl6) and cesium terbium chloride (Cs3TbCl6) nanocrystals (NCs). Highly uniform colloidal Cs3EuCl6 and Cs3TbCl6 NCs are synthesized via the heating-up method. Excitation-wavelength-dependent multicolor emissions from Cs3EuCl6 and Cs3TbCl6 NCs are observed. Under excitation of 330-400 nm, both NCs exhibit blue photoluminescence (PL). Under wavelengths shorter than 330 nm, characteristic red and green emissions are observed from Cs3EuCl6 and Cs3TbCl6, respectively, owing to the atomic emissions from the f-orbitals in trivalent europium (Eu3+) and terbium (Tb3+) ions. Cs3EuCl6 and Cs3TbCl6 NCs exhibit broadband excitation spectra and enhanced absorption properties. Particularly, Cs3EuCl6 NCs exhibit a very narrow full-width at half-maximum in both blue and red PL and no overlap between the two spectra. The photophysical properties of these NCs are further investigated to understand the multicolor PL origins by time-resolved and temperature-dependent PL measurements. Finally, the potential applications of Cs3EuCl6 and Cs3TbCl6 NCs as anti-counterfeiting inks for high-level security are demonstrated. Given their broadband excitation with enhanced absorption properties and dynamically tunable colors with a wide color gamut, Cs3EuCl6 and Cs3TbCl6 NCs have great potential as novel multicolor NC emitters for many emerging applications.
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Affiliation(s)
- Minji Lee
- School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea.
| | - Hyesun Chung
- School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea.
| | - Seong Vin Hong
- School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea.
| | - Ho Young Woo
- School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea.
| | - Ji-Yeon Chae
- School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea.
| | - Tae Yeol Yoon
- School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea.
| | - Benjamin T Diroll
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois, USA
| | - Taejong Paik
- School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea.
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5
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Zhu Y, Xu L, Li B, Wang Y, Li D, Ren J, Jiang H, Liu L, Jiang F, Zhang J. Blue and red upconversion color tuning of Tm 3+ via pulse excitation based on the thermal effect. OPTICS LETTERS 2022; 47:4834-4837. [PMID: 36107102 DOI: 10.1364/ol.469841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 08/26/2022] [Indexed: 06/15/2023]
Abstract
Color-tunable upconversion luminescence has wide prospects for anti-counterfeiting and disease diagnosis/treatment. To date, achieving high-quality tunable red and blue emissions using a single excitation wavelength remains a formidable challenge, due to the large energy difference between the red and blue photons. In this Letter, based on Tm3+ upconversion luminescence, blue dominant and red dominant emissions are generated upon 980-nm excitations using a short and long pulse, respectively. The corresponding color tuning mechanisms are investigated based on the spectral observations. The proposed color tuning strategy is particularly useful for in vivo applications as the red and blue lights play important roles in biological imaging and drug release, respectively.
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6
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Optical Dynamics of Copper-Doped Cadmium Sulfide (CdS) and Zinc Sulfide (ZnS) Quantum-Dots Core/Shell Nanocrystals. NANOMATERIALS 2022; 12:nano12132277. [PMID: 35808112 PMCID: PMC9268264 DOI: 10.3390/nano12132277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/17/2022] [Accepted: 06/27/2022] [Indexed: 02/01/2023]
Abstract
Recently, quantum-dot-based core/shell structures have gained significance due to their optical, optoelectronic, and magnetic attributes. Controlling the fluorescence lifetime of QDs shells is imperative for various applications, including light-emitting diodes and single-photon sources. In this work, novel Cu-doped CdS/ZnS shell structures were developed to enhance the photoluminescence properties. The objective was to materialize the Cu-doped CdS/ZnS shells by the adaptation of a two-stage high-temperature doping technique. The developed nanostructures were examined with relevant characterization techniques such as transmission electron microscopy (TEM) and ultraviolet–visible (UV–vis) emission/absorption spectroscopy. Studying fluorescence, we witnessed a sharp emission peak at a wavelength of 440 nm and another emission peak at a wavelength of 620 nm, related to the fabricated Cu-doped CdS/ZnS core/shell QDs. Our experimental results revealed that Cu-doped ZnS shells adopted the crystal structure of CdS due to its larger bandgap. Consequently, this minimized lattice mismatch and offered better passivation to any surface defects, resulting in increased photoluminescence. Our developed core/shells are highly appropriate for the development of efficient light-emitting diodes.
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7
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Ha SK, Shcherbakov-Wu W, Powers ER, Paritmongkol W, Tisdale WA. Power-Dependent Photoluminescence Efficiency in Manganese-Doped 2D Hybrid Perovskite Nanoplatelets. ACS NANO 2021; 15:20527-20538. [PMID: 34793677 DOI: 10.1021/acsnano.1c09103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Substitutional metal doping is a powerful strategy for manipulating the emission spectra and excited state dynamics of semiconductor nanomaterials. Here, we demonstrate the synthesis of colloidal manganese (Mn2+)-doped organic-inorganic hybrid perovskite nanoplatelets (chemical formula: L2[APb1-xMnxBr3]n-1Pb1-xMnxBr4; L, butylammonium; A, methylammonium or formamidinium; n (= 1 or 2), number of Pb1-xMnxBr64- octahedral layers in thickness) via a ligand-assisted reprecipitation method. Substitutional doping of manganese for lead introduces bright (approaching 100% efficiency) and long-lived (>500 μs) midgap Mn2+ atomic states, and the doped nanoplatelets exhibit dual emission from both the band edge and the dopant state. Photoluminescence quantum yields and band-edge-to-Mn intensity ratios exhibit strong excitation power dependence, even at a very low incident intensity (<100 μW/cm2). Surprisingly, we find that the saturation of long-lived Mn2+ dopant sites cannot explain our observation. Instead, we propose an alternative mechanism involving the cross-relaxation of long-lived Mn-site excitations by freely diffusing band-edge excitons. We formulate a kinetic model based on this cross-relaxation mechanism that quantitatively reproduces all of the experimental observations and validate the model using time-resolved absorption and emission spectroscopy. Finally, we extract a concentration-normalized microscopic rate constant for band edge-to-dopant excitation transfer that is ∼10× faster in methylammonium-containing nanoplatelets than in formamidinium-containing nanoplatelets. This work provides fundamental insight into the interaction of mobile band edge excitons with localized dopant sites in 2D semiconductors and expands the toolbox for manipulating light emission in perovskite nanomaterials.
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Affiliation(s)
- Seung Kyun Ha
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Wenbi Shcherbakov-Wu
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Eric R Powers
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Watcharaphol Paritmongkol
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - William A Tisdale
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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8
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Zhang X, Gao R, Wang Z, Zhang Y, Hu Y, Sun L, Fu L, Ai XC, Zhang JP. Effect of excitation mode on the upconversion luminescence of β-NaYF4:Yb/Er nanocrystals. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138880] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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9
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Cai T, Wang J, Li W, Hills‐Kimball K, Yang H, Nagaoka Y, Yuan Y, Zia R, Chen O. Mn 2+/Yb 3+ Codoped CsPbCl 3 Perovskite Nanocrystals with Triple-Wavelength Emission for Luminescent Solar Concentrators. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001317. [PMID: 32999842 PMCID: PMC7509694 DOI: 10.1002/advs.202001317] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 06/21/2020] [Indexed: 05/18/2023]
Abstract
Doping metal ions into lead halide perovskite nanocrystals (NCs) has attracted great attention over the past few years due to the emergence of novel properties relevant to optoelectronic applications. Here, the synthesis of Mn2+/Yb3+ codoped CsPbCl3 NCs through a hot-injection technique is reported. The resulting NCs show a unique triple-wavelength emission covering ultraviolet/blue, visible, and near-infrared regions. By optimizing the dopant concentrations, the total photoluminescence quantum yield (PL QY) of the codoped NCs can reach ≈125.3% due to quantum cutting effects. Mechanism studies reveal the efficient energy transfer processes from host NCs to Mn2+ and Yb3+ dopant ions, as well as a possible inter-dopant energy transfer from Mn2+ to Yb3+ ion centers. Owing to the high PL QYs and minimal reabsorption loss, the codoped perovskite NCs are demonstrated to be used as efficient emitters in luminescent solar concentrators, with greatly enhanced external optical efficiency compared to that of using solely Mn2+ doped CsPbCl3 NCs. This study presents a new model system for enriching doping chemistry studies and future applications of perovskite NCs.
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Affiliation(s)
- Tong Cai
- Department of ChemistryBrown University324 Brook StreetProvidenceRI02912USA
| | - Junyu Wang
- Department of ChemistryBrown University324 Brook StreetProvidenceRI02912USA
| | - Wenhao Li
- School of Engineering and Department of PhysicsBrown University184 Hope StreetProvidenceRI02912USA
| | | | - Hanjun Yang
- Department of ChemistryBrown University324 Brook StreetProvidenceRI02912USA
| | - Yasutaka Nagaoka
- Department of ChemistryBrown University324 Brook StreetProvidenceRI02912USA
| | - Yucheng Yuan
- Department of ChemistryBrown University324 Brook StreetProvidenceRI02912USA
| | - Rashid Zia
- School of Engineering and Department of PhysicsBrown University184 Hope StreetProvidenceRI02912USA
| | - Ou Chen
- Department of ChemistryBrown University324 Brook StreetProvidenceRI02912USA
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10
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Zhou Q, Yang T, Zhong Z, Kausar F, Wang Z, Zhang Y, Yuan WZ. A clustering-triggered emission strategy for tunable multicolor persistent phosphorescence. Chem Sci 2020; 11:2926-2933. [PMID: 34122793 PMCID: PMC8157572 DOI: 10.1039/c9sc06518k] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 02/10/2020] [Indexed: 12/15/2022] Open
Abstract
A clustering-triggered emission (CTE) strategy, namely the formation of heterogeneous clustered chromophores and conformation rigidification, for achieving tunable multicolor phosphorescence in single-component compounds is proposed. Non-conventional luminophores comprising just oxygen functionalities and free of π-bonding, i.e., d-(+)-xylose (d-Xyl), pentaerythritol (PER), d-fructose (d-Fru) and d-galactose (d-Gal), were adopted as a simple model system with an explicit structure and molecular packing to address the hypothesis. Their concentrated solutions and crystals at 77 K or under ambient conditions demonstrate remarkable multicolor phosphorescence afterglows in response to varying excitation wavelengths, because of the formation of diverse oxygen clusters with sufficiently rigid conformations. The intra- and inter-molecular O⋯O interactions were definitely illustrated by both single crystal structure analysis and theoretical calculations. These findings shed new light on the origin and simple achievement of tunable multicolor phosphorescence in single-component pure organics, and in turn, have strong implications for the emission mechanism of non-conventional luminophores.
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Affiliation(s)
- Qing Zhou
- School of Chemistry and Chemical Engineering, Shanghai Key Lab of Electrical Insulation and Thermal Aging, Shanghai Electrochemical Energy Devices Research Center, Shanghai Jiao Tong University Shanghai 200240 China
| | - Tianjia Yang
- School of Chemistry and Chemical Engineering, Shanghai Key Lab of Electrical Insulation and Thermal Aging, Shanghai Electrochemical Energy Devices Research Center, Shanghai Jiao Tong University Shanghai 200240 China
| | - Zihao Zhong
- School of Chemistry and Chemical Engineering, Shanghai Key Lab of Electrical Insulation and Thermal Aging, Shanghai Electrochemical Energy Devices Research Center, Shanghai Jiao Tong University Shanghai 200240 China
| | - Fahmeeda Kausar
- School of Chemistry and Chemical Engineering, Shanghai Key Lab of Electrical Insulation and Thermal Aging, Shanghai Electrochemical Energy Devices Research Center, Shanghai Jiao Tong University Shanghai 200240 China
| | - Ziyi Wang
- School of Chemistry and Chemical Engineering, Shanghai Key Lab of Electrical Insulation and Thermal Aging, Shanghai Electrochemical Energy Devices Research Center, Shanghai Jiao Tong University Shanghai 200240 China
| | - Yongming Zhang
- School of Chemistry and Chemical Engineering, Shanghai Key Lab of Electrical Insulation and Thermal Aging, Shanghai Electrochemical Energy Devices Research Center, Shanghai Jiao Tong University Shanghai 200240 China
| | - Wang Zhang Yuan
- School of Chemistry and Chemical Engineering, Shanghai Key Lab of Electrical Insulation and Thermal Aging, Shanghai Electrochemical Energy Devices Research Center, Shanghai Jiao Tong University Shanghai 200240 China
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11
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Bortoluzzi M, Castro J, Gobbo A, Ferraro V, Pietrobon L, Antoniutti S. Tetrahedral photoluminescent manganese(ii) halide complexes with 1,3-dimethyl-2-phenyl-1,3-diazaphospholidine-2-oxide as a ligand. NEW J CHEM 2020. [DOI: 10.1039/c9nj05083c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Photoluminescent Mn(ii) tetrahedral complexes characterized by intense emission in the green region were isolated from the reaction of MnX2 (X = Cl, Br, I) and the ligand 1,3-dimethyl-2-phenyl-1,3-diazaphospholidine-2-oxide.
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Affiliation(s)
- Marco Bortoluzzi
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari Venezia
- I-30170 Mestre (VE)
- Italy
- Consorzio Interuniversitario Reattività Chimica e Catalisi (CIRCC)
| | - Jesús Castro
- Departamento de Química Inorgánica
- Universidade de Vigo
- Facultade de Química
- Edificio de Ciencias Experimentais
- 36310 Vigo
| | - Alberto Gobbo
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari Venezia
- I-30170 Mestre (VE)
- Italy
| | - Valentina Ferraro
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari Venezia
- I-30170 Mestre (VE)
- Italy
- Consorzio Interuniversitario Reattività Chimica e Catalisi (CIRCC)
| | - Luca Pietrobon
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari Venezia
- I-30170 Mestre (VE)
- Italy
| | - Stefano Antoniutti
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari Venezia
- I-30170 Mestre (VE)
- Italy
- Consorzio Interuniversitario Reattività Chimica e Catalisi (CIRCC)
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12
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Sun Q, Wang S, Zhao C, Leng J, Tian W, Jin S. Excitation-Dependent Emission Color Tuning from an Individual Mn-Doped Perovskite Microcrystal. J Am Chem Soc 2019; 141:20089-20096. [DOI: 10.1021/jacs.9b09143] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Qi Sun
- State Key Laboratory of Molecular Reaction Dynamics and the Dynamic Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shiping Wang
- State Key Laboratory of Molecular Reaction Dynamics and the Dynamic Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunyi Zhao
- State Key Laboratory of Molecular Reaction Dynamics and the Dynamic Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Leng
- State Key Laboratory of Molecular Reaction Dynamics and the Dynamic Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Wenming Tian
- State Key Laboratory of Molecular Reaction Dynamics and the Dynamic Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Shengye Jin
- State Key Laboratory of Molecular Reaction Dynamics and the Dynamic Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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13
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Wang J, Ma J, Zhang J, Fan Y, Wang W, Sang J, Ma Z, Li H. Advanced Dynamic Photoluminescent Material for Dynamic Anticounterfeiting and Encryption. ACS APPLIED MATERIALS & INTERFACES 2019; 11:35871-35878. [PMID: 31498589 DOI: 10.1021/acsami.9b10870] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Anticounterfeiting is a vitally important issue in modern society. At present, the most commonly used luminescent anticounterfeiting technique is based on static photoluminescence (PL), which is easily counterfeited by certain substitutes. In this work, we report for the first time a dynamic PL material, Na2CaGe2O6:Tb3+. Irradiated by a portable ultraviolet (254 nm) lamp, the PL color of the material due to Tb3+ changes from the initial red to yellow and, finally, green. The investigation reveals that the dynamic PL is due to the presence of appropriate traps and the cross-relaxation effect of Tb3+ in Na2CaGe2O6. By employing this unique dynamic PL material, high-level dynamic luminescent anticounterfeiting and encryption devices can be fabricated. The dynamic PL features of the devices are easily detected using a cheap portable lamp, and at present, it is impossible for the features to be faked by any substitutes. In a virtual military scenario, the results demonstrate that the encryption device is safe and that a spy will be detected. Accordingly, this dynamic PL material could inspire more ingenious security designs.
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Affiliation(s)
- Jia Wang
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Jun Ma
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Jiachi Zhang
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Yu Fan
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Wenxiang Wang
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Jika Sang
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Zhidong Ma
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
| | - Huihui Li
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology , Lanzhou University , Lanzhou 730000 , P. R. China
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14
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Yuan Y, Zhu H, Nagaoka Y, Tan R, Davis AH, Zheng W, Chen O. Reversible Photo-Switching of Dual-Color Fluorescent Mn-Doped CdS-ZnS Quantum Dots Modulated by Diarylethene Molecules. Front Chem 2019; 7:145. [PMID: 30949473 PMCID: PMC6435480 DOI: 10.3389/fchem.2019.00145] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 02/27/2019] [Indexed: 01/24/2023] Open
Abstract
Dynamic materials have been given an increased amount of attention in recent years with an expectation that they may exhibit properties on demand. Especially, the combination of fluorescent quantum dots (QDs) and light-responsive organic switches can generate novel photo-switchable materials for diverse applications. In this work, a highly reversible dynamic hybrid system is established by mixing dual-color emitting Mn-doped CdS-ZnS quantum dots (QDs) with photo-switchable diarylethene molecules. We show that the diarylethene 1,2-bis(5-(3,5-bis(trifluoromethyl)phenyl)-2-methylthiophen-3-yl)cyclopent-1-ene (switch molecule 1) performs fabulous photo-switching property (between its open, 1o and closed, 1c forms), and high fatigue resistance in this hybrid system. The emission color switching between blue and pink of the system can be induced mainly by selective quenching/recovering of the Mn- photoluminescence (PL) of the QDs due to the switchable absorbance of the molecule 1. Mechanistic studies show that quenching of QD emission following UV illumination was caused by both Förster resonance energy transfer (FRET) and reabsorption by surrounding 1c molecules in the case of the Mn-PL, and solely by reabsorption in the case of badngap- (BG-)PL. This photo-switchable system could be potentially used in applications ranging from self-erasing paper to super-resolution fluorescence imaging.
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Affiliation(s)
- Yucheng Yuan
- Department of Chemistry, Brown University, Providence, RI, United States
| | - Hua Zhu
- Department of Chemistry, Brown University, Providence, RI, United States
| | - Yasutaka Nagaoka
- Department of Chemistry, Brown University, Providence, RI, United States
| | - Rui Tan
- Department of Chemistry, Brown University, Providence, RI, United States
| | | | - Weiwei Zheng
- Department of Chemistry, Syracuse University, Syracuse, NY, United States
| | - Ou Chen
- Department of Chemistry, Brown University, Providence, RI, United States
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15
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Yang X, Pu C, Qin H, Liu S, Xu Z, Peng X. Temperature- and Mn2+ Concentration-Dependent Emission Properties of Mn2+-Doped ZnSe Nanocrystals. J Am Chem Soc 2019; 141:2288-2298. [DOI: 10.1021/jacs.8b08480] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaoli Yang
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Chaodan Pu
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Haiyan Qin
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Shaojie Liu
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Zhuan Xu
- Department of Physics, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Xiaogang Peng
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
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16
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Green-emitting manganese (II) complexes with phosphoramide and phenylphosphonic diamide ligands. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2018.04.023] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Yin X, Wang H, Tian Y, Xing M, Fu Y, Luo X. Three primary color emissions from single multilayered nanocrystals. NANOSCALE 2018; 10:9673-9678. [PMID: 29761196 DOI: 10.1039/c8nr01752b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The achievement of three-primary-color luminescence in a single material will lead to revolutionary developments of many advanced applications such as dynamic display with ultra-high resolution, and complex anti-counterfeiting. Here we report the realization of steady-state three-primary-color emission in single multilayered NaYF4 upconversion (UC) nanoparticles. In this core-shell structure, a novel design of a tri-sensitizer, i.e., Nd3+, Yb3+ and Er3+ ions, is utilized, which effectively absorbs the excitation photons of 808, 980 and 1550 nm, and then exhibits blue, red and green emissions, respectively. By simply combining the three primary color emissions, tunable full-color luminescence was achieved in this single material. These nanoparticles have demonstrated promising potential applications in dynamic display and multiple anti-counterfeiting.
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Affiliation(s)
- Xiumei Yin
- Department of Physics, Dalian Maritime University, Dalian, Liaoning 116026, PR China.
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18
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Bortoluzzi M, Castro J, Trave E, Dallan D, Favaretto S. Orange-emitting manganese(II) complexes with chelating phosphine oxides. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2018.02.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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19
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Li ZJ, Hofman E, Blaker A, Davis AH, Dzikovski B, Ma DK, Zheng W. Interface Engineering of Mn-Doped ZnSe-Based Core/Shell Nanowires for Tunable Host-Dopant Coupling. ACS NANO 2017; 11:12591-12600. [PMID: 29172442 DOI: 10.1021/acsnano.7b06773] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Transition metal ion doped one-dimensional (1-D) nanocrystals (NCs) have advantages of larger absorption cross sections and polarized absorption and emissions in comparison to 0-D NCs. However, direct synthesis of doped 1-D nanorods (NRs) or nanowires (NWs) has proven challenging. In this study, we report the synthesis of 1-D Mn-doped ZnSe NWs using a colloidal hot-injection method and shell passivation for core/shell NWs with tunable optical properties. Experimental results show optical properties of the NWs are controlled by the composition and thickness of the shell lattice. It was found that both the host-Mn energy transfer and Mn-Mn coupling are strongly dependent on the type of alloy at the interface of doped core/shell NWs. For Mn-doped type I ZnSe/ZnS core/shell NWs, the ZnS shell passivation can enhance florescence quantum yield with little effect on the location of the incorporated Mn dopant due to the identical cationic Zn2+ site available for Mn dopants throughout the core/shell NWs. However, for Mn-doped quasi type II ZnSe/CdS NWs and ZnSe/CdS/ZnS core/shell NWs, the cation alloying (Zn1-xCdxS(e)) can lead to metal dopant migration from the core to the alloyed interface and tunable host-dopant energy transfer efficiencies and Mn-Mn coupling. As a result, a tunable dual-band emission can be achieved for the doped NWs with the cation-alloyed interface. The interfacial alloying mediated energy transfer and Mn-Mn coupling provides a method to control the optical properties of the doped 1-D core/shell NWs.
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Affiliation(s)
- Zhi-Jun Li
- Department of Chemistry, Syracuse University , Syracuse, New York 13244, United States
| | - Elan Hofman
- Department of Chemistry, Syracuse University , Syracuse, New York 13244, United States
| | - Amanda Blaker
- Department of Chemistry, Syracuse University , Syracuse, New York 13244, United States
| | - Andrew Hunter Davis
- Department of Chemistry, Syracuse University , Syracuse, New York 13244, United States
| | - Boris Dzikovski
- National Biomedical Center for Advanced Electron Spin Resonance Technology , Ithaca, New York 14853, United States
| | - De-Kun Ma
- Zhejiang Key Laboratory of Carbon Materials, Wenzhou University , Wenzhou, Zhejiang 325027, People's Republic of China
| | - Weiwei Zheng
- Department of Chemistry, Syracuse University , Syracuse, New York 13244, United States
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20
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Wong MC, Chen L, Bai G, Huang LB, Hao J. Temporal and Remote Tuning of Piezophotonic-Effect-Induced Luminescence and Color Gamut via Modulating Magnetic Field. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1701945. [PMID: 28922491 DOI: 10.1002/adma.201701945] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 07/14/2017] [Indexed: 05/24/2023]
Abstract
Light-emitting materials have been extensively investigated because of their widespread applications in solid-state lighting, displays, sensors, and bioimaging. In these applications, it is highly desirable to achieve tunable luminescence in terms of luminescent intensity and wavelength. Here, a convenient physical approach of temporal and remote tuning of light-emitting wavelength and color is demonstrated, which is greatly different from conventional methods. It is shown that by modulating the frequency of magnetic-field excitation at room temperature, luminescence from the flexible composites of ZnS:Al, Cu phosphors induced by the piezophotonic effect can be tuned in real time and in situ. The mechanistic investigation suggests that the observed tunable piezophotonic emission is ascribed to the tilting band structure of the ZnS phosphor induced by magnetostrictive strain under a high frequency of magnetic-field excitation. Furthermore, some proof-of concept devices, including red-green-blue full-color displays and tunable white-light sources are demonstrated simply by frequency modulation. A new understanding of the fundamentals of both luminescence and magnetic-optics coupling is thus provided, while offering opportunities in magnetic-optical sensing, piezophotonics, energy harvesting, novel light sources, and displays.
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Affiliation(s)
- Man-Chung Wong
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, P. R. China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Li Chen
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, P. R. China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Gongxun Bai
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, P. R. China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Long-Biao Huang
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, P. R. China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China
| | - Jianhua Hao
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, P. R. China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, P. R. China
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21
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Das Adhikari S, Dutta SK, Dutta A, Guria AK, Pradhan N. Chemically Tailoring the Dopant Emission in Manganese-Doped CsPbCl 3 Perovskite Nanocrystals. Angew Chem Int Ed Engl 2017; 56:8746-8750. [PMID: 28557185 DOI: 10.1002/anie.201703863] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Indexed: 12/31/2022]
Abstract
Doping in perovskite nanocrystals adopts different mechanistic approach in comparison to widely established doping in chalcogenide quantum dots. The fast formation of perovskites makes the dopant insertions more competitive and challenging. Introducing alkylamine hydrochloride (RNH3 Cl) as a promoting reagent, precise controlled doping of MnII in CsPbCl3 perovskite nanocrystals is reported. Simply, by changing the amount of RNH3 Cl, the Mn incorporation and subsequent tuning in the excitonic as well as Mn d-d emission intensities are tailored. Investigations suggested that RNH3 Cl acted as the chlorinating source, controlled the size, and also helps in increasing the number of particles. This provided more opportunity for Mn ions to take part in reaction and occupied the appropriate lattice positions. Carrying out several reactions with varying reaction parameters, the doping conditions are optimized and the role of the promoting reagent for both doped and undoped systems are compared.
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Affiliation(s)
- Samrat Das Adhikari
- Department of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700032, India
| | - Sumit K Dutta
- Department of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700032, India
| | - Anirban Dutta
- Department of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700032, India
| | - Amit K Guria
- Department of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700032, India
| | - Narayan Pradhan
- Department of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700032, India
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22
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Das Adhikari S, Dutta SK, Dutta A, Guria AK, Pradhan N. Chemically Tailoring the Dopant Emission in Manganese-Doped CsPbCl3
Perovskite Nanocrystals. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703863] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Samrat Das Adhikari
- Department of Materials Science; Indian Association for the Cultivation of Science; Jadavpur Kolkata 700032 India
| | - Sumit K. Dutta
- Department of Materials Science; Indian Association for the Cultivation of Science; Jadavpur Kolkata 700032 India
| | - Anirban Dutta
- Department of Materials Science; Indian Association for the Cultivation of Science; Jadavpur Kolkata 700032 India
| | - Amit K. Guria
- Department of Materials Science; Indian Association for the Cultivation of Science; Jadavpur Kolkata 700032 India
| | - Narayan Pradhan
- Department of Materials Science; Indian Association for the Cultivation of Science; Jadavpur Kolkata 700032 India
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23
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Hofman E, Robinson RJ, Li ZJ, Dzikovski B, Zheng W. Controlled Dopant Migration in CdS/ZnS Core/Shell Quantum Dots. J Am Chem Soc 2017; 139:8878-8885. [DOI: 10.1021/jacs.7b02320] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Elan Hofman
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Richard John Robinson
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Zhi-Jun Li
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Boris Dzikovski
- National Biomedical Center for Advanced Electron Spin Resonance Technology, Ithaca, New York 14853, United States
| | - Weiwei Zheng
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
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24
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Pradhan N, Das Adhikari S, Nag A, Sarma DD. Luminescence, Plasmonic, and Magnetic Properties of Doped Semiconductor Nanocrystals. Angew Chem Int Ed Engl 2017; 56:7038-7054. [DOI: 10.1002/anie.201611526] [Citation(s) in RCA: 168] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 01/18/2017] [Indexed: 12/25/2022]
Affiliation(s)
- Narayan Pradhan
- Department of Materials Science; Indian Association for the Cultivation of Science; Kolkata 700032 India
| | - Samrat Das Adhikari
- Department of Materials Science; Indian Association for the Cultivation of Science; Kolkata 700032 India
| | - Angshuman Nag
- Department of Chemistry and Centre for Energy Science; Indian Institute of Science Education and Research, IISER; Pune 411008 India
| | - D. D. Sarma
- Solid State and Structural Chemistry Unit; Indian Institute of Science; Bengaluru 560012 India
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25
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Pradhan N, Das Adhikari S, Nag A, Sarma DD. Dotierte Halbleiter-Nanokristalle: Lumineszenz, plasmonische und magnetische Eigenschaften. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611526] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Narayan Pradhan
- Department of Materials Science; Indian Association for the Cultivation of Science; Kolkata 700032 Indien
| | - Samrat Das Adhikari
- Department of Materials Science; Indian Association for the Cultivation of Science; Kolkata 700032 Indien
| | - Angshuman Nag
- Department of Chemistry and Centre for Energy Science; Indian Institute of Science Education and Research, IISER; Pune 411008 Indien
| | - D. D. Sarma
- Solid State and Structural Chemistry Unit; Indian Institute of Science; Bengaluru 560012 Indien
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26
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Zhao X, Di Q, Wu X, Liu Y, Yu Y, Wei G, Zhang J, Quan Z. Mild synthesis of monodisperse tin nanocrystals and tin chalcogenide hollow nanostructures. Chem Commun (Camb) 2017; 53:11001-11004. [DOI: 10.1039/c7cc06729a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild but robust synthetic strategy was developed to synthesize monodisperse Sn nanocrystals with tunable size by using tungsten hexacarbonyl as the reducing agent, and novel tin chalcogenide nanostructures have also been prepared using Sn nanocrystals as templates.
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Affiliation(s)
- Xixia Zhao
- Department of Chemistry
- Southern University of Science and Technology (SUSTech)
- Shenzhen
- P. R. China
- State Key Laboratory of Heavy Oil Processing
| | - Qian Di
- Department of Chemistry
- Southern University of Science and Technology (SUSTech)
- Shenzhen
- P. R. China
- State Key Laboratory of Heavy Oil Processing
| | - Xiaotong Wu
- Department of Chemistry
- Southern University of Science and Technology (SUSTech)
- Shenzhen
- P. R. China
| | - Yubin Liu
- Department of Chemistry
- Southern University of Science and Technology (SUSTech)
- Shenzhen
- P. R. China
| | - Yikang Yu
- Department of Chemistry
- Southern University of Science and Technology (SUSTech)
- Shenzhen
- P. R. China
| | - Guijuan Wei
- State Key Laboratory of Heavy Oil Processing
- College of Chemical Engineering
- China University of Petroleum
- Qingdao
- P. R. China
| | - Jun Zhang
- State Key Laboratory of Heavy Oil Processing
- College of Chemical Engineering
- China University of Petroleum
- Qingdao
- P. R. China
| | - Zewei Quan
- Department of Chemistry
- Southern University of Science and Technology (SUSTech)
- Shenzhen
- P. R. China
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27
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Zhang QW, Li D, Li X, White PB, Mecinović J, Ma X, Ågren H, Nolte RJ, Tian H. Multicolor Photoluminescence Including White-Light Emission by a Single Host–Guest Complex. J Am Chem Soc 2016; 138:13541-13550. [DOI: 10.1021/jacs.6b04776] [Citation(s) in RCA: 200] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Qi-Wei Zhang
- Key
Laboratory for Advanced Materials and Institute of Fine Chemicals,
College of Chemistry and Molecular Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, P. R. China
- Radboud University, Institute for Molecules and
Materials, Heyendaalseweg
135, 6525 AJ Nijmegen, The Netherlands
| | - Dengfeng Li
- Key
Laboratory for Advanced Materials and Institute of Fine Chemicals,
College of Chemistry and Molecular Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, P. R. China
| | - Xin Li
- Division
of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - Paul B. White
- Radboud University, Institute for Molecules and
Materials, Heyendaalseweg
135, 6525 AJ Nijmegen, The Netherlands
| | - Jasmin Mecinović
- Radboud University, Institute for Molecules and
Materials, Heyendaalseweg
135, 6525 AJ Nijmegen, The Netherlands
| | - Xiang Ma
- Key
Laboratory for Advanced Materials and Institute of Fine Chemicals,
College of Chemistry and Molecular Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, P. R. China
| | - Hans Ågren
- Division
of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - Roeland J.M. Nolte
- Radboud University, Institute for Molecules and
Materials, Heyendaalseweg
135, 6525 AJ Nijmegen, The Netherlands
| | - He Tian
- Key
Laboratory for Advanced Materials and Institute of Fine Chemicals,
College of Chemistry and Molecular Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, P. R. China
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28
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29
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Wang X, Cui Y, Yu S, Zeng Q, Yang M. Core-shell interaction and its impact on the optical absorption of pure and doped core-shell CdSe/ZnSe nanoclusters. J Chem Phys 2016; 144:134307. [PMID: 27059570 DOI: 10.1063/1.4944985] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The structural, electronic, and optical properties of core-shell nanoclusters, (CdSe)(x)@(CdSe)(y) and their Zn-substituted complexes of x = 2-4 and y = 16-28, were studied with density functional theory calculations. The substitution was applied in the cores, the shells, and/or the whole clusters. All these clusters are characterized by their core-shell structures in which the core-shell interaction was found different from those in core or in shell, as reflected by their bondlengths, volumes, and binding energies. Moreover, the core and shell combine together to compose a new cluster with electronic and optical properties different from those of separated individuals, as reflected by their HOMO-LUMO gaps and optical absorptions. With the substitution of Cd by Zn, the structural, electronic, and optical properties of clusters change regularly. The binding energy increases with Zn content, attributed to the strong Zn-Se bonding. For the same core/shell, the structure with a CdSe shell/core has a narrower gap than that with a ZnSe shell/core. The optical absorption spectra also change accordingly with Zn substitution. The peaks blueshift with increasing Zn concentration, accompanying with shape variations in case large number of Cd atoms are substituted. Our calculations reveal the core-shell interaction and its influence on the electronic and optical properties of the core-shell clusters, suggesting a composition-structure-property relationship for the design of core-shell CdSe and ZnSe nanoclusters.
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Affiliation(s)
- Xinqin Wang
- Institute of Atomic and Molecular Physics, Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610065, People's Republic of China
| | - Yingqi Cui
- Institute of Atomic and Molecular Physics, Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610065, People's Republic of China
| | - Shengping Yu
- College of Chemistry and Environment Protection Engineering, Southwest University for Nationalities, Chengdu 610041, People's Republic of China
| | - Qun Zeng
- Institute of Atomic and Molecular Physics, Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610065, People's Republic of China
| | - Mingli Yang
- Institute of Atomic and Molecular Physics, Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610065, People's Republic of China
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30
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Kaiser U, Sabir N, Carrillo-Carrion C, del Pino P, Bossi M, Heimbrodt W, Parak WJ. Förster resonance energy transfer mediated enhancement of the fluorescence lifetime of organic fluorophores to the millisecond range by coupling to Mn-doped CdS/ZnS quantum dots. NANOTECHNOLOGY 2016; 27:055101. [PMID: 26670636 DOI: 10.1088/0957-4484/27/5/055101] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Manganese-doped CdS/ZnS quantum dots have been used as energy donors in a Förster-like resonance energy transfer (FRET) process to enhance the effective lifetime of organic fluorophores. It was possible to tune the effective lifetime of the fluorophores by about six orders of magnitude from the nanosecond (ns) up to the millisecond (ms) region. Undoped and Mn-doped CdS/ZnS quantum dots functionalized with different dye molecules were selected as a model system for investigating the multiple energy transfer process and the specific interaction between Mn ions and the attached dye molecules. While the lifetime of the free dye molecules was about 5 ns, their linking to undoped CdS/ZnS quantum dots led to a long effective lifetime of about 150 ns, following a non-exponential transient. Manganese-doped core-shell quantum dots further enhanced the long-lasting decay time of the dye to several ms. This opens up a pathway to analyse different fluorophores in the time domain with equal spectral emissions. Such lifetime multiplexing would be an interesting alternative to the commonly used spectral multiplexing in fluorescence detection schemes.
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Affiliation(s)
- Uwe Kaiser
- Department of Physics and Material Sciences Center (WZMW), Philipps-University Marburg, Renthof 5, D-35032 Marburg, Germany
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31
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Pu C, Ma J, Qin H, Yan M, Fu T, Niu Y, Yang X, Huang Y, Zhao F, Peng X. Doped Semiconductor-Nanocrystal Emitters with Optimal Photoluminescence Decay Dynamics in Microsecond to Millisecond Range: Synthesis and Applications. ACS CENTRAL SCIENCE 2016; 2:32-9. [PMID: 27163024 PMCID: PMC4827566 DOI: 10.1021/acscentsci.5b00327] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Indexed: 05/24/2023]
Abstract
Transition metal doped semiconductor nanocrystals (d-dots) possess fundamentally different emission properties upon photo- or electroexcitation, which render them as unique emitters for special applications. However, in comparison with intrinsic semiconductor nanocrystals, the potential of d-dots has been barely realized, because many of their unique emission properties mostly rely on precise control of their photoluminescence (PL) decay dynamics. Results in this work revealed that it would be possible to obtain bright d-dots with nearly single-exponential PL decay dynamics. By tuning the number of Mn(2+) ions per dot from ∼500 to 20 in Mn(2+) doped ZnSe nanocrystals (Mn:ZnSe d-dots), the single-exponential PL decay lifetime was continuously tuned from ∼50 to 1000 μs. A synthetic scheme was further developed for uniform and epitaxial growth of thick ZnS shell, ∼7 monolayers. The resulting Mn:ZnSe/ZnS core/shell d-dots were found to be essential for necessary environmental durability of the PL properties, both steady-state and transient ones, for the d-dot emitters. These characteristics combined with intense absorption and high PL quantum yields (70 ± 5%) enabled greatly simplified schemes for various applications of PL lifetime multiplexing using Mn:ZnSe/ZnS core/shell d-dots.
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Affiliation(s)
- Chaodan Pu
- Center
for Chemistry of Novel & High-Performance Materials, and Department
of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Junliang Ma
- Center
for Chemistry of Novel & High-Performance Materials, and Department
of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Haiyan Qin
- Center
for Chemistry of Novel & High-Performance Materials, and Department
of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Ming Yan
- College
of Life Information Science and Instrument Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Tao Fu
- Najing
Technology Corporation, 500 Qiuyi Road, Hangzhou 310052, China
| | - Yuan Niu
- Center
for Chemistry of Novel & High-Performance Materials, and Department
of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Xiaoli Yang
- Center
for Chemistry of Novel & High-Performance Materials, and Department
of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Yifan Huang
- Department
of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310007, China
| | - Fei Zhao
- Najing
Technology Corporation, 500 Qiuyi Road, Hangzhou 310052, China
| | - Xiaogang Peng
- Center
for Chemistry of Novel & High-Performance Materials, and Department
of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
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32
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Chen J, Zhang Q, Zheng FK, Liu ZF, Wang SH, Wu AQ, Guo GC. Intense photo- and tribo-luminescence of three tetrahedral manganese(II) dihalides with chelating bidentate phosphine oxide ligand. Dalton Trans 2015; 44:3289-94. [PMID: 25597698 DOI: 10.1039/c4dt03694h] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Three air-stable tetrahedral manganese(ii) dihalide complexes [MnX2(DPEPO)] (DPEPO = bis[2-(diphenylphosphino)phenyl]ether oxide; X = Cl, Br and I) were prepared. All of the obtained compounds were structurally characterized by single-crystal X-ray diffraction analyses, which reveal that they crystallize in centrosymmetric space groups and feature an isolated mononuclear structure with Mn(2+) in a tetrahedral environment. Interestingly, these complexes show excellent photoluminescent performance in neat solid form, with the highest total quantum yield (Φtotal) of up to 70% recorded for the dibromide complex. Intense green flashes of light could be observed by the naked eye when rubbing the manganese(ii) complexes.
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Affiliation(s)
- Jun Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
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33
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Wan W, Zhu MQ, Tian Z, Li ADQ. Antiphase dual-color correlation in a reactant-product pair imparts ultrasensitivity in reaction-linked double-photoswitching fluorescence imaging. J Am Chem Soc 2015; 137:4312-5. [PMID: 25774573 DOI: 10.1021/jacs.5b01007] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A pair of reversible photochemical reactions correlates their reactant and product specifically, and such a correlation uniquely distinguishes their correlated signal from others that are not linked by this reversible reaction. Here a nanoparticle-shielded fluorophore is photodriven to undergo structural dynamics, alternating between a green-fluorescence state and a red-fluorescence state. As time elapses, the fluorophore can be in either state but not both at the same time. Thus, the red fluorescence is maximized while the green fluorescence is minimized and vice versa. Such an antiphase dual-color (AD) corelationship between the red and green fluorescence maxima as well as between their minima can be exploited to greatly improve the signal-to-noise ratio, thus enhancing the ultimate detection limit. Potential benefits of this correlation include elimination of all interferences originating from single-color dyes and signal amplification of AD photoswitching molecules by orders of magnitude.
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Affiliation(s)
- Wei Wan
- †Department of Chemistry and Center for Materials Research, Washington State University, Pullman, Washington 99164, United States
| | - Ming-Qiang Zhu
- ‡Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Zhiyuan Tian
- §School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Alexander D Q Li
- †Department of Chemistry and Center for Materials Research, Washington State University, Pullman, Washington 99164, United States
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34
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Deng R, Qin F, Chen R, Huang W, Hong M, Liu X. Temporal full-colour tuning through non-steady-state upconversion. NATURE NANOTECHNOLOGY 2015; 10:237-42. [PMID: 25599189 DOI: 10.1038/nnano.2014.317] [Citation(s) in RCA: 385] [Impact Index Per Article: 42.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 12/03/2014] [Indexed: 05/22/2023]
Abstract
Developing light-harvesting materials with tunable emission colours has always been at the forefront of colour display technologies. The variation in materials composition, phase and structure can provide a useful tool for producing a wide range of emission colours, but controlling the colour gamut in a material with a fixed composition remains a daunting challenge. Here, we demonstrate a convenient, versatile approach to dynamically fine-tuning emission in the full colour range from a new class of core-shell upconversion nanocrystals by adjusting the pulse width of infrared laser beams. Our mechanistic investigations suggest that the unprecedented colour tunability from these nanocrystals is governed by a non-steady-state upconversion process. These findings provide keen insights into controlling energy transfer in out-of-equilibrium optical processes, while offering the possibility for the construction of true three-dimensional, full-colour display systems with high spatial resolution and locally addressable colour gamut.
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Affiliation(s)
- Renren Deng
- Department of Chemistry, National University of Singapore, Singapore 117543
| | - Fei Qin
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583
| | - Runfeng Chen
- Key Laboratory for Organic Electronics and Information Displays &Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials, Nanjing University of Posts &Telecommunications, Nanjing 210023, China
| | - Wei Huang
- 1] Key Laboratory for Organic Electronics and Information Displays &Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials, Nanjing University of Posts &Telecommunications, Nanjing 210023, China [2] Key Laboratory of Flexible Electronics &Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Minghui Hong
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583
| | - Xiaogang Liu
- 1] Department of Chemistry, National University of Singapore, Singapore 117543 [2] Institute of Materials Research and Engineering, Agency for Science, Technology and Research, Singapore 117602
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35
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Zhai X, Gong Y, Yang W, Kang H, Zhang X. Mn-doped CdS/ZnS/CdS QD-based fluorescent nanosensor for rapid, selective, and ultrasensitive detection of copper(ii) ion. RSC Adv 2015. [DOI: 10.1039/c5ra11435g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Energy levels of Mn-doped QD-based nanosensor and the quenching mechanism of the nanosensor by Cu2+.
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Affiliation(s)
- Xiaoman Zhai
- Key Laboratory of Cluster Science of Ministry of Education
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- School of Chemistry
- Beijing Institute of Technology
- Beijing 100081
| | - Yunqian Gong
- Key Laboratory of Cluster Science of Ministry of Education
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- School of Chemistry
- Beijing Institute of Technology
- Beijing 100081
| | - Wen Yang
- Key Laboratory of Cluster Science of Ministry of Education
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- School of Chemistry
- Beijing Institute of Technology
- Beijing 100081
| | - Huaizhi Kang
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- P. R. China
| | - Xiaoling Zhang
- Key Laboratory of Cluster Science of Ministry of Education
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- School of Chemistry
- Beijing Institute of Technology
- Beijing 100081
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36
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Zhou S, Kong Y, Shen Q, Ren X, Zhang JR, Zhu JJ. Chronic Myeloid Leukemia Drug Evaluation Using a Multisignal Amplified Photoelectrochemical Sensing Platform. Anal Chem 2014; 86:11680-9. [DOI: 10.1021/ac502969x] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Shiwei Zhou
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Yong Kong
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
- Institute
of Petrochemistry Technology, Changzhou University, Changzhou 213164, People’s Republic of China
| | - Qingming Shen
- Key Lab of Organic Electronics & Information Displays, Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, People’s Republic of China
| | - Xiaolin Ren
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
- Institute
of Petrochemistry Technology, Changzhou University, Changzhou 213164, People’s Republic of China
| | - Jian-Rong Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
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37
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Sun Z, Yang X, Wang C, Yao T, Cai L, Yan W, Jiang Y, Hu F, He J, Pan Z, Liu Q, Wei S. Graphene activating room-temperature ferromagnetic exchange in cobalt-doped ZnO dilute magnetic semiconductor quantum dots. ACS NANO 2014; 8:10589-10596. [PMID: 25222885 DOI: 10.1021/nn5040845] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Control over the magnetic interactions in dilute magnetic semiconductor quantum dots (DMSQDs) is a key issue to future development of nanometer-sized integrated "spintronic" devices. However, manipulating the magnetic coupling between impurity ions in DMSQDs remains a great challenge because of the intrinsic quantum confinement effects and self-purification of the quantum dots. Here, we propose a hybrid structure to achieve room-temperature ferromagnetic interactions in DMSQDs, via engineering the density and nature of the energy states at the Fermi level. This idea has been applied to Co-doped ZnO DMSQDs where the growth of a reduced graphene oxide shell around the Zn(0.98)Co(0.02)O core turns the magnetic interactions from paramagnetic to ferromagnetic at room temperature, due to the hybridization of 2p(z) orbitals of graphene and 3d obitals of Co(2+)-oxygen-vacancy complexes. This design may open up a kind of possibility for manipulating the magnetism of doped oxide nanostructures.
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Affiliation(s)
- Zhihu Sun
- National Synchrotron Radiation Laboratory, University of Science and Technology of China , Hefei, Anhui 230029, People's Republic of China
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38
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Jing L, Ding K, Kershaw SV, Kempson IM, Rogach AL, Gao M. Magnetically engineered semiconductor quantum dots as multimodal imaging probes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:6367-86. [PMID: 25178258 DOI: 10.1002/adma.201402296] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Revised: 06/25/2014] [Indexed: 05/27/2023]
Abstract
Light-emitting semiconductor quantum dots (QDs) combined with magnetic resonance imaging contrast agents within a single nanoparticle platform are considered to perform as multimodal imaging probes in biomedical research and related clinical applications. The principles of their rational design are outlined and contemporary synthetic strategies are reviewed (heterocrystalline growth; co-encapsulation or assembly of preformed QDs and magnetic nanoparticles; conjugation of magnetic chelates onto QDs; and doping of QDs with transition metal ions), identifying the strengths and weaknesses of different approaches. Some of the opportunities and benefits that arise through in vivo imaging using these dual-mode probes are highlighted where tumor location and delineation is demonstrated in both MRI and fluorescence modality. Work on the toxicological assessments of QD/magnetic nanoparticles is also reviewed, along with progress in reducing their toxicological side effects for eventual clinical use. The review concludes with an outlook for future biomedical imaging and the identification of key challenges in reaching clinical applications.
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Affiliation(s)
- Lihong Jing
- Institute of Chemistry, Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing, 100190, China
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39
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Wang X, Li J, Li Q, Chen B, Song G, Zhang W, Shi L, Zou B, Liu R. Yellow-light generation and engineering in zinc-doped cadmium sulfide nanobelts with low-threshold two-photon excitation. NANOTECHNOLOGY 2014; 25:325702. [PMID: 25051942 DOI: 10.1088/0957-4484/25/32/325702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Through a simple doping route with zinc ion as a dopant in cadmium sulfide nanobelts, a bright yellow-colored light was obtained. The detailed chromaticity and brightness of the light can be engineered by the dopant concentration and the pumping power, which are used to control the dominant wavelength to any fine yellow color, and even cover the sodium-yellow-line of 589 nm. The nanobelts were synthesized through a chemical vapor deposition method. The peak shift of the XRD result proves that the zinc ions as a dopant exist in the nanobelts rather than in the ZnCdS alloy formation. Time-resolved photoluminescence of the nanobelt reveals the existence of the defect-related state, which induces a red band to further mix with green band-edge emission to form the yellow light. Moreover, low-threshold two-photon excitation was observed in the proper Zn-doped cadmium sulfide nanobelts. The dopant and pumping power-tuned generation and engineering of the yellow light makes it possible to use this kind of material as yellow light-emitting source.
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Affiliation(s)
- Xiaoxu Wang
- Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, Institute of Physics, Beijing Institute of Technology, Beijing 100081, People's Republic of China
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40
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Wang JH, Feng HT, Luo J, Zheng YS. Monomer Emission and Aggregate Emission of an Imidazolium Macrocycle Based on Bridged Tetraphenylethylene and Their Quenching by C60. J Org Chem 2014; 79:5746-51. [DOI: 10.1021/jo500884z] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jin-Hua Wang
- Key
Laboratory for Large-Format Battery Materials and System, Ministry
of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Hai-Tao Feng
- Key
Laboratory for Large-Format Battery Materials and System, Ministry
of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jun Luo
- Tongji
School of Pharmacy, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yan-Song Zheng
- Key
Laboratory for Large-Format Battery Materials and System, Ministry
of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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41
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Yan W, Liu Q, Wang C, Yang X, Yao T, He J, Sun Z, Pan Z, Hu F, Wu Z, Xie Z, Wei S. Realizing Ferromagnetic Coupling in Diluted Magnetic Semiconductor Quantum Dots. J Am Chem Soc 2014; 136:1150-5. [DOI: 10.1021/ja411900w] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wensheng Yan
- National Synchrotron Radiation
Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Qinghua Liu
- National Synchrotron Radiation
Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Chao Wang
- National Synchrotron Radiation
Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Xiaoyu Yang
- National Synchrotron Radiation
Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Tao Yao
- National Synchrotron Radiation
Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Jingfu He
- National Synchrotron Radiation
Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Zhihu Sun
- National Synchrotron Radiation
Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Zhiyun Pan
- National Synchrotron Radiation
Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Fengchun Hu
- National Synchrotron Radiation
Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Ziyu Wu
- National Synchrotron Radiation
Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Zhi Xie
- National Synchrotron Radiation
Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Shiqiang Wei
- National Synchrotron Radiation
Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
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42
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Sambandam B, Muthukumar T, Arumugam S, Paulose PL, Manoharan PT. Davydov splitting in cadmium vacancy emission, ferromagnetism and photosensitivity in manganese incorporated CdS nanocrystals. RSC Adv 2014. [DOI: 10.1039/c4ra01899k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Surfactant and diamines-assisted CdS nanocrystals have Cd2+ vacancies with photoluminescence property. The neighbouring Cd2+–Cd2+ vacancies exhibit Davydov splitting. Addition of Mn2+ ions in these sites leads to ferromagnetism.
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Affiliation(s)
- Balaji Sambandam
- Department of Chemistry
- Indian Institute of Technology/Madras
- Chennai, India
| | | | - Sonachalam Arumugam
- Centre for High Pressure Research
- School of Physics
- Bharathidasan University
- Tiruchirappalli, India
| | - P. L. Paulose
- Department of Condensed Matter and Physics
- Tata Institute of Fundamental Research
- Mumbai, India
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43
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Wang X, Zhang W, Song G, Zou B, Li Z, Guo S, Li J, Li Q, Liu R. Visual monitoring of laser power and spot profile in micron region by a single chip of Zn-doped CdS nanobelts. RSC Adv 2014. [DOI: 10.1039/c4ra09201e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
On the basis of pumping-power-dependent emission property, Zn-doped CdS nanobelts are developed to monitor injected laser power and detect the profile of laser focal spots visually in the micron region through color changes.
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Affiliation(s)
- Xiaoxu Wang
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems
- School of Physics
- Beijing Institute of Technology
- Beijing 100081, China
| | - Wensheng Zhang
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems
- School of Physics
- Beijing Institute of Technology
- Beijing 100081, China
| | - Guangli Song
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems
- School of Physics
- Beijing Institute of Technology
- Beijing 100081, China
| | - Bingsuo Zou
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems
- School of Physics
- Beijing Institute of Technology
- Beijing 100081, China
| | - Zhishuang Li
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems
- School of Physics
- Beijing Institute of Technology
- Beijing 100081, China
| | - Shuai Guo
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems
- School of Physics
- Beijing Institute of Technology
- Beijing 100081, China
| | - Jing Li
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems
- School of Physics
- Beijing Institute of Technology
- Beijing 100081, China
| | - Qisong Li
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems
- School of Physics
- Beijing Institute of Technology
- Beijing 100081, China
| | - Ruibin Liu
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems
- School of Physics
- Beijing Institute of Technology
- Beijing 100081, China
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44
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Sang LJ, Wu YY, Wang HF. Polyethyleneimine/Manganese-Doped ZnS Nanocomposites: A Multifunctional Probe for Two-Color Imaging and Three-Dimensional Sensing. Chempluschem 2013. [DOI: 10.1002/cplu.201300049] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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45
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46
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47
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Wang C, Xu L, Li X, Lin Q. Divalent Europium Nanocrystals: Controllable Synthesis, Properties, and Applications. Chemphyschem 2012; 13:3765-72. [DOI: 10.1002/cphc.201200163] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 04/06/2012] [Indexed: 11/09/2022]
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48
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White MA, Weaver AL, Beaulac R, Gamelin DR. Electrochemically controlled auger quenching of Mn²+ photoluminescence in doped semiconductor nanocrystals. ACS NANO 2011; 5:4158-4168. [PMID: 21452880 DOI: 10.1021/nn200889q] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Auger processes in colloidal semiconductor nanocrystals have been scrutinized extensively in recent years. Whether involving electron-exciton, hole-exciton, or exciton-exciton interactions, such Auger processes are generally fast and hence have been considered prominent candidates for interpreting fast processes relevant to photoluminescence blinking and multiexciton decay. With recent advances in the chemistries of nanocrystal doping, increasing attention is now being paid to analogous photophysical properties of colloidal-doped semiconductor nanocrystals. Here, we report the first investigation of the effects of electron-dopant exchange interactions on dopant luminescence in doped semiconductor nanocrystals. Using electrochemical techniques, electrical control of charge-carrier densities in films of colloidal Mn(2+)-doped CdS quantum dots has been achieved and used to demonstrate remarkably effective Auger de-excitation of photoexcited Mn(2+). The doped nanocrystals are found to be substantially more sensitive to Auger de-excitation than their undoped analogues, a result shown to arise primarily from the long Mn(2+) excited-state lifetime. This observation of exceptionally effective Auger quenching has broader implications in areas of high-power, single-particle, or electrically driven luminescence of doped semiconductor nanocrystals, and also suggests interesting opportunities for modulating Mn(2+) photoluminescence intensities on sublifetime time scales, or for imaging charge carriers in nanocrystal-based devices.
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Affiliation(s)
- Michael A White
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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49
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Deng Z, Tong L, Flores M, Lin S, Cheng JX, Yan H, Liu Y. High-quality manganese-doped zinc sulfide quantum rods with tunable dual-color and multiphoton emissions. J Am Chem Soc 2011; 133:5389-96. [PMID: 21405017 PMCID: PMC3074539 DOI: 10.1021/ja110996c] [Citation(s) in RCA: 123] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We report a simple, fast and green phosphine-free colloidal chemistry to synthesize high-quality wurtzite-type Mn-doped ZnS quantum rods (QRs) with tunable diameters (1.6-5.6 nm), high aspect ratios (up to 50), variable Mn doping levels (0.18-1.60%), and high quantum yields (up to 45%). The electron paramagnetic resonance spectra with modeling reveal the successful doping of paramagnetic Mn(2+) ions in the host ZnS QRs. The Mn-doped ZnS QRs demonstrate tunable dual-color (orange and blue) emissions by tuning the doping levels and UV excitation wavelengths. The orange emission with long decay lifetime (3.3 ms) originates from the doped Mn(2+) states, while the blue emission with fast decay lifetime (0.31 ns) is attributed to the QR surface states. The bright two- and three-photon excitation upconversion luminescence from the Mn-doped ZnS QRs have been observed using tunable near-infrared femtosecond laser. Our strategy provides a versatile route to programmably control the optical properties of anisotropic semiconductor nanomaterials, which may create new opportunities for photonic devices and bioimaging applications.
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