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Wang Y, Wang X, Mao Y, Dorman JA. Impact of Sc 3+-Modified Local Site Symmetries on Er 3+ Ion Upconversion Luminescence in Y 2O 3 Nanoparticles. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2022; 126:11715-11722. [PMID: 35911613 PMCID: PMC9327094 DOI: 10.1021/acs.jpcc.2c00835] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Rare earth (RE) doped yttria sesquioxide has been widely used as host materials for upconversion (UC) phosphors due to their high refractive index, wide band gap, and high melting point. Meanwhile, while fluoride matrices with low phonon cutoff energies exhibit stronger UC emissions, RE-doped oxides exhibit better thermal stability and higher thermal sensitivity when applied as optical temperature sensors. In this work, Sc3+ is substituted in RE-doped Y2O3 lattices to generate smaller cation sites, enhancing the crystal field and modifying the allowed optical transitions. Er3+ is used as a photoluminescent probe to study the effect of site position and symmetry on the UC performance. In comparison with the traditional hydrothermal method, Sc3+ is successfully incorporated into the Y2O3 lattice via the co-precipitation/molten salt method without segregating observed. The Judd-Ofelt analysis was applied to determine the local symmetry and efficiency changes. Sc was found to be able to improve the luminescence performances of Er in Y2-x Sc x O3 (YScO) hosts by adjusting the local symmetry level around the luminescent sites. The local symmetry level was reduced with less than 30 mol % of Sc doping concentration based on the changes in Ω2 values. Meanwhile, the YScO oxide was found to significantly improve the luminescence intensity and red-to-green ratio at a lower Yb3+ concentration (5 mol %) instead of a higher concentration (20 mol %) commonly used. This was attributed to an increased energy transfer between the closer Yb3+-Er3+ pairs. Overall, this work allows the spatial occupancy of luminescence centers in the metal oxide host materials to optimize the UC luminescence performance and develop a high-efficiency oxide material for high-temperature applications such as optical thermometry.
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Affiliation(s)
- Yuming Wang
- Cain
Department of Chemical Engineering, Louisiana
State University, Baton
Rouge, Louisiana 70803, United States
| | - Xianli Wang
- Department
of Chemistry, Illinois Institute of Technology, Chicago, Illinois 60616, United States
| | - Yuanbing Mao
- Department
of Chemistry, Illinois Institute of Technology, Chicago, Illinois 60616, United States
| | - James A. Dorman
- Cain
Department of Chemical Engineering, Louisiana
State University, Baton
Rouge, Louisiana 70803, United States
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2
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Clark PCJ, Andresen E, Sear MJ, Favaro M, Girardi L, van de Krol R, Resch-Genger U, Starr DE. Quantification of the Activator and Sensitizer Ion Distributions in NaYF 4 :Yb 3+ , Er 3+ Upconverting Nanoparticles Via Depth-Profiling with Tender X-Ray Photoemission. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107976. [PMID: 35732601 DOI: 10.1002/smll.202107976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 05/25/2022] [Indexed: 06/15/2023]
Abstract
The spatial distribution and concentration of lanthanide activator and sensitizer dopant ions are of key importance for the luminescence color and efficiency of upconverting nanoparticles (UCNPs). Quantifying dopant ion distributions and intermixing, and correlating them with synthesis methods require suitable analytical techniques. Here, X-ray photoelectron spectroscopy depth-profiling with tender X-rays (2000-6000 eV), providing probe depths ideally matched to UCNP sizes, is used to measure the depth-dependent concentration ratios of Er3+ to Yb3+ , [Er3+ ]/[Yb3+ ], in three types of UCNPs prepared using different reagents and synthesis methods. This is combined with data simulations and inductively coupled plasma-optical emission spectroscopy (ICP-OES) measurements of the lanthanide ion concentrations to construct models of the UCNPs' dopant ion distributions. The UCNP sizes and architectures are chosen to demonstrate the potential of this approach. Core-only UCNPs synthesized with XCl3 ·6H2 O precursors (β-phase) exhibit a homogeneous distribution of lanthanide ions, but a slightly surface-enhanced [Er3+ ]/[Yb3+ ] is observed for UCNPs prepared with trifluroacetate precursors (α-phase). Examination of Yb-core@Er-shell UCNPs reveals a co-doped, intermixed region between the single-doped core and shell. The impact of these different dopant ion distributions on the UCNP's optical properties is discussed to highlight their importance for UCNP functionality and the design of efficient UCNPs.
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Affiliation(s)
- Pip C J Clark
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Elina Andresen
- BAM Federal Institute for Materials Research and Testing, Division 1.10 Biophotonics, Richard-Willstätter-Str. 11, 12489, Berlin, Germany
| | - Michael J Sear
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Marco Favaro
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Leonardo Girardi
- Department of Chemical Sciences and INSTM Unit, University of Padova, Via F. Marzolo 1, Padova, 35131, Italy
| | - Roel van de Krol
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Ute Resch-Genger
- BAM Federal Institute for Materials Research and Testing, Division 1.10 Biophotonics, Richard-Willstätter-Str. 11, 12489, Berlin, Germany
| | - David E Starr
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
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Electrodeposition of Lithium-Based Upconversion Nanoparticle Thin Films for Efficient Perovskite Solar Cells. NANOMATERIALS 2022; 12:nano12122115. [PMID: 35745453 PMCID: PMC9230536 DOI: 10.3390/nano12122115] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/16/2022] [Accepted: 06/18/2022] [Indexed: 02/04/2023]
Abstract
In this work, high-quality lithium-based, LiYF4=Yb3+,Er3+ upconversion (UC) thin film was electrodeposited on fluorene-doped tin oxide (FTO) glass for solar cell applications. A complete perovskite solar cell (PSC) was fabricated on top of the FTO glass coated with UC thin film and named (UC-PSC device). The fabricated UC-PSC device demonstrated a higher power conversion efficiency (PCE) of 19.1%, an additional photocurrent, and a better fill factor (FF) of 76% in comparison to the pristine PSC device (PCE = ~16.57%; FF = 71%). Furthermore, the photovoltaic performance of the UC-PSC device was then tested under concentrated sunlight with a power conversion efficiency (PCE) of 24% without cooling system complexity. The reported results open the door toward efficient PSCs for renewable and green energy applications.
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Gorris HH, Farka Z. Up and down the spectrum: upconversion nanocrystal and semiconductor material fused into a single nanocomposite. LIGHT, SCIENCE & APPLICATIONS 2022; 11:179. [PMID: 35701392 PMCID: PMC9197932 DOI: 10.1038/s41377-022-00875-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A nanocomposite consisting of a cubic EuSe semiconductor material grown on a hexagonal upconversion nanoparticle has overcome the crystal lattice mismatch that typically prevents the epitaxial growth of such heterogeneous nanocrystals. Eu3+ at the interface layer shows its characteristic red emission band both under UV excitation light due to energy transfer from the semiconductor and under NIR excitation light due to energy transfer after photon-upconversion. Data storage and security applications are suggested for this new nanocomposite.
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Affiliation(s)
- Hans H Gorris
- Department of Biochemistry, Masaryk University, 625 00, Brno, Czech Republic.
| | - Zdeněk Farka
- Department of Biochemistry, Masaryk University, 625 00, Brno, Czech Republic
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Preparation of a Bi12O15Cl6@W18O49@g-C3N4/PDI heterojunction with dual charge transfer paths and its photocatalytic performance for phenolic pollutants. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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6
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Lu H, Tournet J, Dastafkan K, Liu Y, Ng YH, Karuturi SK, Zhao C, Yin Z. Noble-Metal-Free Multicomponent Nanointegration for Sustainable Energy Conversion. Chem Rev 2021; 121:10271-10366. [PMID: 34228446 DOI: 10.1021/acs.chemrev.0c01328] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Global energy and environmental crises are among the most pressing challenges facing humankind. To overcome these challenges, recent years have seen an upsurge of interest in the development and production of renewable chemical fuels as alternatives to the nonrenewable and high-polluting fossil fuels. Photocatalysis, photoelectrocatalysis, and electrocatalysis provide promising avenues for sustainable energy conversion. Single- and dual-component catalytic systems based on nanomaterials have been intensively studied for decades, but their intrinsic weaknesses hamper their practical applications. Multicomponent nanomaterial-based systems, consisting of three or more components with at least one component in the nanoscale, have recently emerged. The multiple components are integrated together to create synergistic effects and hence overcome the limitation for outperformance. Such higher-efficiency systems based on nanomaterials will potentially bring an additional benefit in balance-of-system costs if they exclude the use of noble metals, considering the expense and sustainability. It is therefore timely to review the research in this field, providing guidance in the development of noble-metal-free multicomponent nanointegration for sustainable energy conversion. In this work, we first recall the fundamentals of catalysis by nanomaterials, multicomponent nanointegration, and reactor configuration for water splitting, CO2 reduction, and N2 reduction. We then systematically review and discuss recent advances in multicomponent-based photocatalytic, photoelectrochemical, and electrochemical systems based on nanomaterials. On the basis of these systems, we further laterally evaluate different multicomponent integration strategies and highlight their impacts on catalytic activity, performance stability, and product selectivity. Finally, we provide conclusions and future prospects for multicomponent nanointegration. This work offers comprehensive insights into the development of cost-competitive multicomponent nanomaterial-based systems for sustainable energy-conversion technologies and assists researchers working toward addressing the global challenges in energy and the environment.
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Affiliation(s)
- Haijiao Lu
- Research School of Chemistry, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Julie Tournet
- Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Kamran Dastafkan
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Yun Liu
- Research School of Chemistry, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Yun Hau Ng
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Siva Krishna Karuturi
- Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, Australian Capital Territory 2601, Australia.,Research School of Electrical, Energy and Materials Engineering, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Chuan Zhao
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Zongyou Yin
- Research School of Chemistry, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
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8
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Ansari AA, Nazeeruddin M, Tavakoli MM. Organic-inorganic upconversion nanoparticles hybrid in dye-sensitized solar cells. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213805] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Cheng X, Tu D, Zheng W, Chen X. Energy transfer designing in lanthanide-doped upconversion nanoparticles. Chem Commun (Camb) 2020; 56:15118-15132. [PMID: 33206075 DOI: 10.1039/d0cc05878e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Lanthanide (Ln3+)-doped upconversion nanoparticles (UCNPs), exhibiting excellent optical properties such as long photoluminescence lifetime, narrow emission bandwidth, and low autofluorescence background, have been applied in many fields, especially in biological analysis and medical diagnostics. Despite the exciting progress, the applications of Ln3+-doped UCNPs are hindered by the small absorption cross-section and low upconversion luminescence efficiency of Ln3+. To this regard, several effective strategies associated with energy transfer designing have been proposed to modulate the upconversion luminescence properties of Ln3+ in the past few decades. In this feature article, we focus on the most recent development of optical property designing in Ln3+-doped UCNPs on the basis of energy transfer between Ln3+-Ln3+, Ln3+-dyes, and Ln3+-quantum dots. Some future efforts towards the energy transfer designing in Ln3+-doped UCNPs are also proposed.
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Affiliation(s)
- Xingwen Cheng
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, State Key Laboratory of Structural Chemistry, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
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10
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Labeled-protein corona-coated Bi2S3 nanorods targeted to lysosomes for bioimaging and efficient photothermal cancer therapy. Colloids Surf B Biointerfaces 2020; 196:111291. [DOI: 10.1016/j.colsurfb.2020.111291] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 07/08/2020] [Accepted: 07/27/2020] [Indexed: 11/22/2022]
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11
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Niu W, Wang X, Zheng Y, Wu S, Hua M, Wang Y, Zhang X, Tok AIY, He X, Zhang S. Inorganic Photonic Microspheres with Localized Concentric Ordering for Deep Pattern Encoding and Triple Sensory Microsensor. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2003638. [PMID: 33107169 DOI: 10.1002/smll.202003638] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/11/2020] [Indexed: 06/11/2023]
Abstract
Photonic microspheres offer building units with unique topological structures and specific optical functions for diverse applications. Here, a new class of inorganic photonic microspheres with superior robustness, optical and electrical properties is reported by introducing a unique localized concentric ordering architecture and chemical interaction, which further serve as building blocks for deep pattern encoding and multiple sensory optoelectronic devices. Benefiting from localized concentric ordering architecture, the resultant photonic microspheres demonstrate orientation- and angle-independent structural colors. Notably, the formation of well-combined lamellae inorganic layers by chemical interaction grants the microspheres superior mechanical robustness, excellent solvent resistance, thermal stability, and multiple optoelectronic properties simultaneously, rarely seen in previous reports. Owing to these merits, such microspheres are used to construct diverse encoded photonic patterns for anti-counterfeiting applications. Interestingly, cross-communication among neighboring microspheres creates complex photonic sub-patterns, which provide "fingerprint information" with deep encryption security. Moreover, a single photonic microsphere-based optoelectronic microsensor is demonstrated for the first time, which achieves appealing application for real-time health monitoring and safety warning toward triple environmental stimuli. This work not only provides a new kind of robust, multifunctional photonic material, but also opens a new avenue for their uses as complexed pattern encoding and multi-parametric sensing platforms.
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Affiliation(s)
- Wenbin Niu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Linggong Rd., Dalian, 116024, China
| | - Xiao Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Linggong Rd., Dalian, 116024, China
| | - Yu Zheng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Linggong Rd., Dalian, 116024, China
| | - Shuwang Wu
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Mutian Hua
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Yunpeng Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Linggong Rd., Dalian, 116024, China
| | - Xiaohe Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Linggong Rd., Dalian, 116024, China
| | - Alfred Iing Yoong Tok
- School of Material Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Ximin He
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Shufen Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Linggong Rd., Dalian, 116024, China
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12
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Xia H, Wu S, Liu Y. Photoelectrochemically active perovskite QDs/TiO 2 inverse opal with enhanced photoluminescence intensity. NANOTECHNOLOGY 2020; 31:205704. [PMID: 31995536 DOI: 10.1088/1361-6528/ab70f8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Photoluminescence intensity of the perovskite QDs coupled with TiO2 was decreased significantly owing to the electron transfer between them. Hererin, the composite of CsPb(Cl0.4Br0.6)3 with TiO2 inverse opal was fabricated and we have proved that the effect of scattering of TiO2 inverse opal layer by layer under the incident excitation light for the enhancement of perovskite QDs photoluminescence intensity is far greater than the decrease of photoluminescence intensity caused by the electron transfer between QDs and TiO2. Particularly, photoelectrochemical characterizations exhibit high charge separation effciency and fast response speed in water. This study opens new possibilities for optoelectronic and photo display applications of perovskites-based NCs.
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Affiliation(s)
- Hongbo Xia
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, Dalian, People's Republic of China
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13
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14
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Large-scale fabrication of upconversion/quantum dots photocatalyst film by a facile spin-coating method. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2019.121092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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A Deep Ultraviolet Mode-locked Laser Based on a Neural Network. Sci Rep 2020; 10:116. [PMID: 31924824 PMCID: PMC6954267 DOI: 10.1038/s41598-019-56845-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 12/17/2019] [Indexed: 11/08/2022] Open
Abstract
Deep ultraviolet lasers based on the phenomenon of mode-locking have been used widely in many areas in recent years, for example, in semiconductors, the environment and biomedicine. In the development of a mode-locked deep ultraviolet laser, one of the most important aspects is to optimize the multiple parameters of the complex system. Traditional optimization methods require experimenters with more optimization experience, which limits the wide application of the lasers. In this study, we optimize the deep ultraviolet mode-locked laser system using an online neural network to solve this problem. The neural network helps us control the position of the crystal, the length of the cavity, the position of the focusing lens and the temperature of the frequency doubling crystal. We generate a deep ultraviolet mode-locked laser with a power of 18 mW and a spectral center at 205 nm. This result is greatly improved compared to previous results with the same pump power. This technology provides a universal solution to multiparameter problems in the optimization of lasers.
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Zhao J, Liu C, Wang H, Fu Y, Zhu C, Huang H, Liao F, Liu Y, Shao M, Kang Z. Carbon dots modified WO2-NaxWO3 composite as UV-Vis-NIR broad spectrum-driven photocatalyst for overall water splitting. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.11.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Fang J, Chen Y, Zhu C, Li X, Wang W, Lu C, Ni Y, Fang L, Xu Z. Enhanced triplet–triplet annihilation upconversion by photonic crystals and Au plasma resonance for efficient photocatalysis. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01810d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The coupling electromagnetic field of AVS structure effect and AuNPs LSPR can synergistically improve TTA-UC efficiency, thereby enhancing the photocatalytic activity of g-C3N4@CdS.
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Affiliation(s)
- Jiaojiao Fang
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
- State Key Laboratory of Materials-Orient Chemical Engineering
| | - Yukai Chen
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
- State Key Laboratory of Materials-Orient Chemical Engineering
| | - Cheng Zhu
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
- State Key Laboratory of Materials-Orient Chemical Engineering
| | - Xue Li
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
- State Key Laboratory of Materials-Orient Chemical Engineering
| | - Wei Wang
- State Key Laboratory of Materials-Orient Chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites
| | - Chunhua Lu
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
- State Key Laboratory of Materials-Orient Chemical Engineering
| | - Yaru Ni
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
- State Key Laboratory of Materials-Orient Chemical Engineering
| | - Liang Fang
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
- State Key Laboratory of Materials-Orient Chemical Engineering
| | - Zhongzi Xu
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
- State Key Laboratory of Materials-Orient Chemical Engineering
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Niu W, Zhang L, Wang Y, Wang Z, Zhao K, Wu S, Zhang S, Tok AIY. Multicolored Photonic Crystal Carbon Fiber Yarns and Fabrics with Mechanical Robustness for Thermal Management. ACS APPLIED MATERIALS & INTERFACES 2019; 11:32261-32268. [PMID: 31394900 DOI: 10.1021/acsami.9b09459] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Multicolored photonic crystal carbon fiber (CF) yarns and fabrics with mechanical robustness in a full spectrum are reported. By facilely controlling the thickness of the periodic layer, a series of photonic CF yarns and fabrics with vivid structural colors ranging from purple, green, yellow, orange, to red are obtained. Interestingly, the prepared multicolored CF yarns show anisotropic optical reflection properties because of their unique axisymmetric geometry, while the plain-woven fabrics exhibit vivid colors even under ambient scattering light. Most importantly, they can withstand cyclical mechanical rubbing, laundering, and accelerated light aging, indicating great potential for practical uses. Finally, considering such impressive characteristics as well as reflection in the visible and near-infrared regions, the above photonic crystal microstructure is further used as a new material for the application of outdoor reflective cooling of the textile surface, demonstrating a superior temperature reduction up to ∼12 °C with respect to the control sample.
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Affiliation(s)
- Wenbin Niu
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , West Campus, 2 Linggong Road , Dalian 116024 , China
| | - Lele Zhang
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , West Campus, 2 Linggong Road , Dalian 116024 , China
| | - Yunpeng Wang
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , West Campus, 2 Linggong Road , Dalian 116024 , China
| | - Zhiwei Wang
- School of Materials Science and Engineering , Nanyang Technological University , 639798 Singapore
| | - Kai Zhao
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , West Campus, 2 Linggong Road , Dalian 116024 , China
| | - Suli Wu
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , West Campus, 2 Linggong Road , Dalian 116024 , China
| | - Shufen Zhang
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , West Campus, 2 Linggong Road , Dalian 116024 , China
| | - Alfred Iing Yoong Tok
- School of Materials Science and Engineering , Nanyang Technological University , 639798 Singapore
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Liu L, Lu K, Xu L, Tang D, Liu C, Shahzad MK, Yan D, Khan F, Zhao E, Li H. Highly efficient upconversion luminescence of Er heavily doped nanocrystals through 1530 nm excitation. OPTICS LETTERS 2019; 44:711-714. [PMID: 30702717 DOI: 10.1364/ol.44.000711] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 01/09/2019] [Indexed: 06/09/2023]
Abstract
Improving luminescence efficiency is of vital importance for applications of rare-earth-doped upconversion materials. Herein, we present highly efficient upconversion nanocrystal, which is brighter than the state-of-the-art Er3+/Yb3+ co-doped core-shell material, through Er3+ heavily doping and 1530 nm excitation. Moreover, upconversion characteristics and mechanisms of Er3+ heavily doped core nanocrystals and their core-shell counterparts are investigated carefully.
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Zhao F, Rong Y, Wan J, Hu Z, Peng Z, Wang B. High photocatalytic performance of carbon quantum dots/TNTs composites for enhanced photogenerated charges separation under visible light. Catal Today 2018. [DOI: 10.1016/j.cattod.2018.02.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chen D, Xu M, Ma M, Huang P. Effects of Er 3+ spatial distribution on luminescence properties and temperature sensing of upconverting core-shell nanocrystals with high Er 3+ content. Dalton Trans 2018; 46:15373-15385. [PMID: 29072734 DOI: 10.1039/c7dt02915b] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In upconversion nanocrystals where Er3+ acts as the activator, concentration quenching will easily occur when the content of Er3+ is high (generally >5mol%), and the Er3+ spatial distribution which is a key factor affecting the concentration quenching is an important issue that must be considered. Herein, we selected Yb:NaErF4 as a light-emitting layer and investigated its upconversion performance and temperature sensing behaviors in two kinds of core-shell nanoarchitectures. Yb3+ and Er3+ activators were distributed in a three-dimensional sphere and two-dimensional thin layer in Yb:NaErF4@Yb/Nd:NaYF4@NaGdF4 and NaGdF4@Yb:NaErF4@Yb/Nd:NaYF4@NaGdF4 core-shell nanocrystals, respectively. The difference in Er3+ spatial distribution in the core-shell structure resulted in significant modification of red-to-green ratios and decay behaviors upon excitation at 376 nm, 808 nm, 980 nm and 1532 nm, and the related mechanisms were systematically investigated. In addition, the spatial distribution of Er3+ was demonstrated to have no obvious effect on the transitions of Er3+ thermally coupled 2H11/2 → 4I15/2 and 4S3/2 → 4I15/2 and the relative sensitivity for temperature determination under 808 nm laser excitation.
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Affiliation(s)
- Daqin Chen
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, P. R. China.
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22
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Zhu C, Zhou W, Fang J, Ni Y, Fang L, Lu C, Xu Z, Kang Z. Enhancement of fluorescent emission in photonic crystal film and application in photocatalysis. NANOTECHNOLOGY 2018; 29:045601. [PMID: 29199974 DOI: 10.1088/1361-6528/aa9efc] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Fluorescent photonic crystal films composed of monodisperse NaYF4:15Yb,0.5Tm@SiO2 (where 15 and 0.5 represent the mole percentage of reactants) core-shell spheres were successfully fabricated and applied in photocatalysis. The core-shell spheres were prepared using a modified Stober method, and fluorescent photonic crystal films were fabricated via a simple self-assembly method. The morphologies, structures and upconversion fluorescent properties of the fluorescent photonic crystal films with different photonic band gaps were characterized. Moreover, their photocatalytic capability in decomposing rhodamine B using near-infrared light was studied. Results indicate that the band edge effect plays a critical role in the enhancement of short wave emission intensity of fluorescent photonic crystal films. Specifically, in comparison to the reference sample without a band edge effect, the 363 nm emission intensity was enhanced by 5.97 times, while the percentage of UV upconversion emission was improved by 6.23%. In addition, the 451 nm emission intensity was enhanced by 5.81 times, and the percentage of visible upconversion emission was improved by 8.88%. Furthermore, fluorescent photonic crystal films with enhanced short wave emission exhibited great photocatalytic performance in the degradation of rhodamine B aqueous solutions under near-infrared light.
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Affiliation(s)
- Cheng Zhu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, People's Republic of China. Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 210009, People's Republic of China. Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, People's Republic of China
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23
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Sun L, Li Z, Li Z, Hu Y, Chen C, Yang C, Du B, Sun Y, Besenbacher F, Yu M. Design and mechanism of core-shell TiO 2 nanoparticles as a high-performance photothermal agent. NANOSCALE 2017; 9:16183-16192. [PMID: 29043348 DOI: 10.1039/c7nr02848b] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Photothermal agents (PTAs) with high biocompatibility and therapeutic efficacy have become particularly fascinating, however, knowledge of their photothermal performance is rather limited. Herein, rationally designed core-shell TiO2 nanoparticles have been fabricated using a mild hydrogenation method, where NaBH4 was used as the H2 source. The resultant TiO2 possesses strong optical absorption in the NIR region and remarkable photothermal conversion capability and stability, leading to a high inhibition rate on cancer cells. In particular, its photothermal conversion efficiency is as high as 55.2%, which is 204% that of the fully hydrogenated amorphous TiO2. More importantly, the underlying mechanism is proposed. It is revealed that while the oxygen vacancies induced by the hydrogenation can introduce defect levels in the band gap and enhance the optical absorption, the superfluous oxygen vacancies and defects reduce the photothermal conversion capability and thermal conductivity to a large extent. Controlling the hydrogenation degree and maintaining a certain extent of crystallization are, therefore, crucial to the photothermal properties. This new understanding of the photothermal conversion mechanism may have provided a fresh route to design and optimize PTAs and inspire considerable interest to turn a large variety of semiconductor metal oxides into competent PTAs by appropriate hydrogenation.
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Affiliation(s)
- Lei Sun
- State Key Laboratory of Urban Water Resource and Environment, School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China.
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24
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Li L, Pang X, Liu G. Near-Infrared Light-Triggered Polymeric Nanomicelles for Cancer Therapy and Imaging. ACS Biomater Sci Eng 2017; 4:1928-1941. [DOI: 10.1021/acsbiomaterials.7b00648] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Lei Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Xin Pang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Gang Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
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25
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Zhang L, Zhang H, Zhang X, Han Y, Zhang H, Zhai Y, Dong S. Expanding light utilization to the near-infrared region for hybrid bio-photoelectrochemical cells. NANOSCALE 2017; 9:9404-9410. [PMID: 28657090 DOI: 10.1039/c7nr02636f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The insatiable energy demand asks for the maximum conversion of green renewable sources. Herein, we propose the first NIR-assisted glucose/air bio-photoelectrochemical (BPEC) cell comprising a rare earth up-conversion microcrystal (UCMC)-based polyterthiophene (pTTh) cathode. Upon irradiation with a 980 nm laser, UCMCs emit robust luminescence in the visible range, which can efficiently excite pTTh, catalyzing the reduction of oxygen and generating photocurrent. Coupling with a glucose oxidation bioanode, this assembled BPEC cell exhibits a maximal output power density of 40.6 μW cm-2 and an open circuit voltage of 0.53 V. This success is an essential conceptual steppingstone towards the comprehensive utilization of whole sunlight and offers alternative solutions for multiple energy conversions.
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Affiliation(s)
- Lingling Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
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26
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Zhang X, Yang S, Zhou H, Liang J, Liu H, Xia H, Zhu X, Jiang Y, Zhang Q, Hu W, Zhuang X, Liu H, Hu W, Wang X, Pan A. Perovskite-Erbium Silicate Nanosheet Hybrid Waveguide Photodetectors at the Near-Infrared Telecommunication Band. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29. [PMID: 28370608 DOI: 10.1002/adma.201604431] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 11/05/2016] [Indexed: 05/07/2023]
Abstract
Methylammonium lead halide perovskites have attracted enormous attentions due to their superior optical and electronic properties. However, the photodetection at near-infrared telecommunication wavelengths is hardly achievable because of their wide bandgaps. Here, this study demonstrates, for the first time, novel perovskite-erbium silicate nanosheet hybrid photodetectors with remarkable spectral response at ≈1.54 µm. Under the near-infrared light illumination, the erbium silicate nanosheets can give strong upconversion luminescence, which will be well confined in their cavities and then be efficiently coupled into and simultaneously excite the adjacent perovskite to realize photodetection. These devices own prominent responsivity and external quantum efficiency as high as previously reported microscale silicon-based subbandgap photodetectors. More importantly, the photoresponse speed (≈900 µs) is faster by five orders than the ever reported hot electron silicon-based photodetectors at telecommunication wavelengths. The realization of perovskite-based telecommunication band photodetectors will open new chances for applications in advanced integrated photonics devices and systems.
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Affiliation(s)
- Xuehong Zhang
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Physics and Electronics, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, P. R. China
| | - Shuzhen Yang
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Physics and Electronics, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, P. R. China
| | - Hong Zhou
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Physics and Electronics, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, P. R. China
| | - Junwu Liang
- School of Physical Science and Technology Engineering, Yulin Normal University, Yulin, 537000, P. R. China
| | - Huawei Liu
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Physics and Electronics, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, P. R. China
| | - Hui Xia
- National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
| | - Xiaoli Zhu
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Physics and Electronics, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, P. R. China
| | - Ying Jiang
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Physics and Electronics, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, P. R. China
| | - Qinglin Zhang
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Physics and Electronics, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, P. R. China
| | - Wei Hu
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Physics and Electronics, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, P. R. China
| | - Xiujuan Zhuang
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Physics and Electronics, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, P. R. China
| | - Hongjun Liu
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Physics and Electronics, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, P. R. China
| | - Weida Hu
- National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China
| | - Xiao Wang
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Physics and Electronics, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, P. R. China
| | - Anlian Pan
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Physics and Electronics, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, P. R. China
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27
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Johnson NJJ, He S, Diao S, Chan EM, Dai H, Almutairi A. Direct Evidence for Coupled Surface and Concentration Quenching Dynamics in Lanthanide-Doped Nanocrystals. J Am Chem Soc 2017; 139:3275-3282. [DOI: 10.1021/jacs.7b00223] [Citation(s) in RCA: 333] [Impact Index Per Article: 47.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | | | - Shuo Diao
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Emory M. Chan
- The
Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Hongjie Dai
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
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28
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Xu J, Sun M, Kuang Y, Bi H, Liu B, Yang D, Lv R, Gai S, He F, Yang P. Markedly enhanced up-conversion luminescence by combining IR-808 dye sensitization and core–shell–shell structures. Dalton Trans 2017; 46:1495-1501. [DOI: 10.1039/c6dt04529d] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The up-conversion emission of core–shell–shell structured nanoparticles has been greatly enhanced by IR-808 dye sensitization of 808 nm photons.
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29
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Chandrasekaran S, Ngo YLT, Sui L, Kim EJ, Dang DK, Chung JS, Hur SH. Highly enhanced visible light water splitting of CdS by green to blue upconversion. Dalton Trans 2017; 46:13912-13919. [DOI: 10.1039/c7dt02936e] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper reports a new class of visible light water splitting photocatalysts based on a triplet–triplet annihilation (TTA) upconversion (UC) process.
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Affiliation(s)
| | - Yen-Linh Thi Ngo
- School of Chemical Engineering
- University of Ulsan
- Ulsan 44610
- South Korea
| | - Lijun Sui
- School of Chemical Engineering
- University of Ulsan
- Ulsan 44610
- South Korea
| | - Eui Jung Kim
- School of Chemical Engineering
- University of Ulsan
- Ulsan 44610
- South Korea
| | - Dinh Khoi Dang
- School of Chemical Engineering
- University of Ulsan
- Ulsan 44610
- South Korea
| | - Jin Suk Chung
- School of Chemical Engineering
- University of Ulsan
- Ulsan 44610
- South Korea
| | - Seung Hyun Hur
- School of Chemical Engineering
- University of Ulsan
- Ulsan 44610
- South Korea
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30
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Wang J, Li Y, Deng L, Wei N, Weng Y, Dong S, Qi D, Qiu J, Chen X, Wu T. High-Performance Photothermal Conversion of Narrow-Bandgap Ti 2 O 3 Nanoparticles. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1603730. [PMID: 27862379 DOI: 10.1002/adma.201603730] [Citation(s) in RCA: 303] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 08/26/2016] [Indexed: 05/19/2023]
Abstract
Ti2 O3 nanoparticles with high performance of photothermal conversion are demonstrated for the first time. Benefiting from the nanosize and narrow-bandgap features, the Ti2 O3 nanoparticles possess strong light absorption and nearly 100% internal solar-thermal conversion efficiency. Furthermore, Ti2 O3 -nanoparticle-based thin film shows potential use in seawater desalination and purification.
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Affiliation(s)
- Juan Wang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Yangyang Li
- Materials Science and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Lin Deng
- Advanced Membrane and Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Nini Wei
- Imaging and Characterization Core lab, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Yakui Weng
- Department of Physics, Southeast University, Nanjing, 211189, China
| | - Shuai Dong
- Department of Physics, Southeast University, Nanjing, 211189, China
| | - Dianpeng Qi
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Jun Qiu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Xiaodong Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Tom Wu
- Materials Science and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Kingdom of Saudi Arabia
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31
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Chen C, Li C, Shi Z. Current Advances in Lanthanide-Doped Upconversion Nanostructures for Detection and Bioapplication. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2016; 3:1600029. [PMID: 27840794 PMCID: PMC5096256 DOI: 10.1002/advs.201600029] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 03/05/2016] [Indexed: 04/14/2023]
Abstract
Along with the development of science and technology, lanthanide-doped upconversion nanostructures as a new type of materials have taken their place in the field of nanomaterials. Upconversion luminescence is a nonlinear optical phenomenon, which absorbs two or more photons and emits one photon. Compared with traditional luminescence materials, upconversion nanostructures have many advantages, such as weak background interference, long lifetime, low excitation energy, and strong tissue penetration. These interesting nanostructures can be applied in anticounterfeit, solar cell, detection, bioimaging, therapy, and so on. This review is focused on the current advances in lanthanide-doped upconversion nanostructures, covering not only basic luminescence mechanism, synthesis, and modification methods but also the design and fabrication of upconversion nanostructures, like core-shell nanoparticles or nanocomposites. At last, this review emphasizes the application of upconversion nanostructure in detection and bioimaging and therapy. Learning more about the advances of upconversion nanostructures can help us better exploit their excellent performance and use them in practice.
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Affiliation(s)
- Cailing Chen
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin UniversityChangchun130012P. R. China
| | - Chunguang Li
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin UniversityChangchun130012P. R. China
| | - Zhan Shi
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin UniversityChangchun130012P. R. China
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32
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Kwon SJ, Lee GY, Jung K, Jang HS, Park JS, Ju H, Han IK, Ko H. A Plasmonic Platform with Disordered Array of Metal Nanoparticles for Three-Order Enhanced Upconversion Luminescence and Highly Sensitive Near-Infrared Photodetector. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:7899-7909. [PMID: 27376395 DOI: 10.1002/adma.201601680] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 06/11/2016] [Indexed: 05/03/2023]
Abstract
Three-order enhanced upconversion luminescence from upconversion nanoparticles is suggested by way of a promising platform utilizing a disordered array of plasmonic metal nanoparticles. Its application toward highly sensitive NIR photodetectors is discussed.
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Affiliation(s)
- Seok Joon Kwon
- Nanophotonics Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-guSeoul, 136-791, South Korea.
| | - Gi Yong Lee
- Nanophotonics Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-guSeoul, 136-791, South Korea
- Department of Physics, Yonsei University, 50 Yonsei-ro, Seodaemun-guSeoul, 120-749, South Korea
| | - Kinam Jung
- Nanophotonics Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-guSeoul, 136-791, South Korea
| | - Ho Seong Jang
- Materials Architecturing Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-guSeoul, 136-791, South Korea
| | - Joon-Suh Park
- Nanophotonics Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-guSeoul, 136-791, South Korea
| | - Honglyoul Ju
- Department of Physics, Yonsei University, 50 Yonsei-ro, Seodaemun-guSeoul, 120-749, South Korea
| | - Il Ki Han
- Nanophotonics Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-guSeoul, 136-791, South Korea
| | - Hyungduk Ko
- Nanophotonics Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-guSeoul, 136-791, South Korea.
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33
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Yan C, Zhao H, Perepichka DF, Rosei F. Lanthanide Ion Doped Upconverting Nanoparticles: Synthesis, Structure and Properties. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:3888-3907. [PMID: 27345736 DOI: 10.1002/smll.201601565] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Indexed: 06/06/2023]
Abstract
Lanthanide doped upconverting nanoparticles (UCNPs) have emerged as a new class of luminescent materials, with major discoveries and overall significant progress during the last decade. Unlike multiphoton absorption in organic dyes or semiconductor quantum dots, lanthanide doped UCNPs involve real intermediate quantum states and convert infrared (IR) into visible light via sequential electronic excitation. The relatively high efficiency of this process even at low radiation flux makes UCNPs particularly attractive for many current and emerging areas of technology. The aim of this article is to highlight several recent advances in this rapidly growing field, emphasizing the relationships between structure and properties of UCNPs. Additionally, various strategies developed for the synthesis of UCNPs with a focus on the various synthetic approaches that yield high-quality monodisperse samples with controlled size, shape and crystalline phase are reviewed. Emerging synthetic approaches towards designed structure to improve the optical and electronic properties of UCNPs are discussed. Finally, recent examples of applications of UCNPs in biomedical and optoelectronics research, giving our own perspectives on future directions and emerging possibilities of the field are described.
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Affiliation(s)
- Chenglin Yan
- Centre for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel Boulet, J3×1S2, Varennes, QC, Canada
| | - Haiguang Zhao
- Centre for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel Boulet, J3×1S2, Varennes, QC, Canada
| | - Dmitrii F Perepichka
- Department of Chemistry, McGill University, H3A 0B8, Montreal, QC, Canada
- Center for Self-Assembled Chemical Structures, McGill University, H3A 0B8, Montreal, QC, Canada
| | - Federico Rosei
- Centre for Energy, Materials and Telecommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel Boulet, J3×1S2, Varennes, QC, Canada
- Center for Self-Assembled Chemical Structures, McGill University, H3A 0B8, Montreal, QC, Canada
- Institute for Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu, PR China
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34
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Zhou D, Liu D, Xu W, Yin Z, Chen X, Zhou P, Cui S, Chen Z, Song H. Observation of Considerable Upconversion Enhancement Induced by Cu2-xS Plasmon Nanoparticles. ACS NANO 2016; 10:5169-79. [PMID: 27149281 DOI: 10.1021/acsnano.6b00649] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Localized surface plasmon resonances (LSPRs) are achieved in heavily doped semiconductor nanoparticles (NPs) with appreciable free carrier concentrations. In this paper, we present the photonic, electric, and photoelectric properties of plasmonic Cu2-xS NPs/films and the utilization of LSPRs generated from semiconductor NPs as near-infrared antennas to enhance the upconversion luminescence (UCL) of NaYF4:Yb(3+),Er(3+) NPs. Our results suggest that the LSPRs in Cu2-xS NPs originate from ligand-confined carriers and that a heat treatment resulted in the decomposition of ligands and oxidation of Cu2-xS NPs; these effects led to a decrease of the Cu(2+)/Cu(+) ratio, which in turn resulted in the broadening, decrease in intensity, and red-shift of the LSPRs. In the presence of a MoO3 spacer, the UCL intensity of NaYF4:Yb(3+),Er(3+) NPs was substantially improved and exhibited extraordinary power-dependent behavior because of the energy band structure of the Cu2-xS semiconductor. These findings provide insights into the nature of LSPR in semiconductors and their interaction with nearby emitters and highlight the possible application of LSPR in photonic and photoelectric devices.
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Affiliation(s)
- Donglei Zhou
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , 2699 Qianjin Street, Changchun, 130012, People's Republic of China
| | - Dali Liu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , 2699 Qianjin Street, Changchun, 130012, People's Republic of China
| | - Wen Xu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , 2699 Qianjin Street, Changchun, 130012, People's Republic of China
- School of Chemical and Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457
| | - Ze Yin
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , 2699 Qianjin Street, Changchun, 130012, People's Republic of China
| | - Xu Chen
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , 2699 Qianjin Street, Changchun, 130012, People's Republic of China
| | - Pingwei Zhou
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , 2699 Qianjin Street, Changchun, 130012, People's Republic of China
| | - Shaobo Cui
- College of Physics, Jilin University , 2699 Qianjin Street, Changchun, 130012, People's Republic of China
| | - Zhanguo Chen
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , 2699 Qianjin Street, Changchun, 130012, People's Republic of China
| | - Hongwei Song
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , 2699 Qianjin Street, Changchun, 130012, People's Republic of China
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35
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Confining energy migration in upconversion nanoparticles towards deep ultraviolet lasing. Nat Commun 2016; 7:10304. [PMID: 26739352 PMCID: PMC4729831 DOI: 10.1038/ncomms10304] [Citation(s) in RCA: 135] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 11/27/2015] [Indexed: 02/07/2023] Open
Abstract
Manipulating particle size is a powerful means of creating unprecedented optical properties in metals and semiconductors. Here we report an insulator system composed of NaYbF4:Tm in which size effect can be harnessed to enhance multiphoton upconversion. Our mechanistic investigations suggest that the phenomenon stems from spatial confinement of energy migration in nanosized structures. We show that confining energy migration constitutes a general and versatile strategy to manipulating multiphoton upconversion, demonstrating an efficient five-photon upconversion emission of Tm3+ in a stoichiometric Yb lattice without suffering from concentration quenching. The high emission intensity is unambiguously substantiated by realizing room-temperature lasing emission at around 311 nm after 980-nm pumping, recording an optical gain two orders of magnitude larger than that of a conventional Yb/Tm-based system operating at 650 nm. Our findings thus highlight the viability of realizing diode-pumped lasing in deep ultraviolet regime for various practical applications. A general approach to maximize upconversion luminescence in stoichiometric lanthanide lattices is lacking. Here, Chen et al. report a NaYbF4:Tm lattice and demonstrate fine-tuning of energy migration by controlling dimensions of the crystal lattice, highlighting their potential for deep ultraviolet lasing.
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Zhang F, Hao LN, Wang Y, Cheng S, Wang WN, Zhang CL, Xu F, Qian HS. Hydrothermal-assisted crystallization for the synthesis of upconversion nanoparticles/CdS/TiO2composite nanofibers by electrospinning. CrystEngComm 2016. [DOI: 10.1039/c6ce00987e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wu X, Lee H, Bilsel O, Zhang Y, Li Z, Chen T, Liu Y, Duan C, Shen J, Punjabi A, Han G. Tailoring dye-sensitized upconversion nanoparticle excitation bands towards excitation wavelength selective imaging. NANOSCALE 2015; 7:18424-8. [PMID: 26499208 PMCID: PMC4636449 DOI: 10.1039/c5nr05437k] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
One of the key roadblocks in UCNP development is its extremely limited choices of excitation wavelengths. We report a generic design to program UCNPs to possess highly tunable dye characteristic excitation bands. Using such distinctive properties, we were able to develop a new excitation wavelength selective security imaging. This work unleashed the greater freedom of the excitation wavelengths of the upconversion nanoparticles and we believe it is a game-changer in the field and this method will enable numerous applications that are currently limited by existing UCNPs.
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Affiliation(s)
- Xiang Wu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116012, People’s Republic of China
- Department of Biochemistry and Molecular Pharmacology, Universisty of Massachusetts Medical School, Worcester, MA 01605, United States
| | - Hyungseok Lee
- Department of Biochemistry and Molecular Pharmacology, Universisty of Massachusetts Medical School, Worcester, MA 01605, United States
| | - Osman Bilsel
- Department of Biochemistry and Molecular Pharmacology, Universisty of Massachusetts Medical School, Worcester, MA 01605, United States
| | - Yuanwei Zhang
- Department of Biochemistry and Molecular Pharmacology, Universisty of Massachusetts Medical School, Worcester, MA 01605, United States
| | - Zhanjun Li
- Department of Biochemistry and Molecular Pharmacology, Universisty of Massachusetts Medical School, Worcester, MA 01605, United States
| | - Teresa Chen
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
| | - Yi Liu
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116012, People’s Republic of China
| | - Jie Shen
- Department of Biochemistry and Molecular Pharmacology, Universisty of Massachusetts Medical School, Worcester, MA 01605, United States
| | - Amol Punjabi
- Department of Biochemistry and Molecular Pharmacology, Universisty of Massachusetts Medical School, Worcester, MA 01605, United States
| | - Gang Han
- Department of Biochemistry and Molecular Pharmacology, Universisty of Massachusetts Medical School, Worcester, MA 01605, United States
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Cui G, Wang W, Ma M, Xie J, Shi X, Deng N, Xin J, Tang B. IR-Driven Photocatalytic Water Splitting with WO2-NaxWO3 Hybrid Conductor Material. NANO LETTERS 2015; 15:7199-7203. [PMID: 26434545 DOI: 10.1021/acs.nanolett.5b01581] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
An IR-driven photocatalytic water splitting system based on WO2-NaxWO3 (x > 0.25) hybrid conductor materials was established for the first time; this system can be directly applied in seawater. The WO2-NaxWO3 (x > 0.25) hybrid conductor material was readily prepared by a high-temperature reduction process of semiconductor NaxWO3 (x < 0.25) nanowire bundles. A novel ladder-type carrier transfer process is suggested for the established IR-driven photocatalytic water splitting system.
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Affiliation(s)
- Guanwei Cui
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University , Shandong 250014, China
| | - Wen Wang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University , Shandong 250014, China
| | - Mingyue Ma
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University , Shandong 250014, China
| | - Junfeng Xie
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University , Shandong 250014, China
| | - Xifeng Shi
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University , Shandong 250014, China
| | - Ning Deng
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University , Shandong 250014, China
| | - Jianping Xin
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University , Shandong 250014, China
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University , Shandong 250014, China
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Huang S, Guo S, Wang Q, Zhu N, Lou Z, Li L, Shan A, Yuan H. CaF2-Based Near-Infrared Photocatalyst Using the Multifunctional CaTiO3 Precursors as the Calcium Source. ACS APPLIED MATERIALS & INTERFACES 2015; 7:20170-20178. [PMID: 26305907 DOI: 10.1021/acsami.5b05557] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Multistage formation of fluoride upconversion agents from the related-semiconductor precursors provides a promising route for the fabrication of near-infrared (NIR) photocatalysts with high photocatalytic activities. Herein, the cotton templated CaTiO3 "semiconduction" precursors (C-CaTiO3) were used to synthesize the NIR photocatalyst of Er3+/Tm3+/Yb3+-(CaTiO3/CaF2/TiO2) (C-ETYCCT), and the functions of the Ca2+ source for CaF2 and the heterostructure formations were displayed by C-CaTiO3. The generated CaF2 acted as the host material for the lanthanide ions, and the heterostructures were constructed among anatase, rutile, and the remaining CaTiO3. The induced oxygen vacancies and Ti3+ ions enabled the samples to utilize most of the upconversion luminescence for photocatalysis. The NIR driven degradation rate of methyl orange (MO) over C-ETYCCT reached 52.34%, which was 1.6 and 2.5 times higher than those of Er3+/Tm3+/Yb3+-(CaTiO3/TiO2) (C-ETYCT) and Er3+/Tm3+/Yb3+-(CaTiO3/CaF2) (C-ETYCC), respectively. The degradation rates of MO and salicylic acid over C-ETYCCT with UV-vis-NIR light irradiation were also much higher than those of other samples, which were mainly results of the contributions of its high upconversion luminescence and the efficient electron-hole pair separation.
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Affiliation(s)
- Shouqiang Huang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
| | - Shengjuan Guo
- Daqing Oilfield Engineering Co., Ltd., CNPC , 46 Xiyuan Road, Daqing, Heilongjiang 163712, People's Republic of China
| | - Qingji Wang
- Daqing Oilfield Engineering Co., Ltd., CNPC , 46 Xiyuan Road, Daqing, Heilongjiang 163712, People's Republic of China
| | - Nanwen Zhu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
| | - Ziyang Lou
- School of Environmental Science and Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
| | - Liang Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
| | - Aidang Shan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
| | - Haiping Yuan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
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Kim H, Chung K, Lee S, Kim DH, Lee H. Near-infrared light-responsive nanomaterials for cancer theranostics. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2015; 8:23-45. [PMID: 25903643 DOI: 10.1002/wnan.1347] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Revised: 02/15/2015] [Accepted: 03/07/2015] [Indexed: 12/17/2022]
Abstract
Early diagnosis and effective cancer therapy are required, to properly treat cancer, which causes more than 8.2 million deaths in a year worldwide. Among various cancer treatments, nanoparticle-based cancer therapies and molecular imaging techniques have been widely exploited over the past decades to overcome current drawbacks of existing cancer treatments. In particular, gold nanoparticles (AuNPs), carbon nanotubes (CNTs), graphene oxide (GO), and upconversion nanocrystals (UNCs) have attracted tremendous attention from researchers due to their near-infrared (NIR) light-responsive behaviors. These nanomaterials are considered new multifunctional platforms for cancer theranostics. They would enable on-demand control of drug release or molecular imaging in response to a remote trigger by NIR light exposure. This approach allows the patient or physician to adjust therapy precisely to a target site, thus greatly improving the efficacy of cancer treatments, while reducing undesirable side effects. In this review, we have summarized the advantages of NIR light-responsive nanomaterials for in vivo cancer treatments, which includes NIR triggered photothermal therapy (PTT) and photodynamic therapy (PDT). Furthermore, recent developments, perspectives, and new challenges of NIR light-responsive nanomaterials are discussed for cancer theranostic applications.
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Affiliation(s)
- Heejung Kim
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Global Top 5 Research Program, Ewha Womans University, Seoul, Republic of Korea
| | - Kyungwha Chung
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, Republic of Korea
| | - Seungjin Lee
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Global Top 5 Research Program, Ewha Womans University, Seoul, Republic of Korea
| | - Dong Ha Kim
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, Republic of Korea
| | - Hyukjin Lee
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Global Top 5 Research Program, Ewha Womans University, Seoul, Republic of Korea
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41
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Niu W, Li X, Karuturi SK, Fam DW, Fan H, Shrestha S, Wong LH, Tok AIY. Applications of atomic layer deposition in solar cells. NANOTECHNOLOGY 2015; 26:064001. [PMID: 25604730 DOI: 10.1088/0957-4484/26/6/064001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Atomic layer deposition (ALD) provides a unique tool for the growth of thin films with excellent conformity and thickness control down to atomic levels. The application of ALD in energy research has received increasing attention in recent years. In this review, the versatility of ALD in solar cells will be discussed. This is specifically focused on the fabrication of nanostructured photoelectrodes, surface passivation, surface sensitization, and band-structure engineering of solar cell materials. Challenges and future directions of ALD in the applications of solar cells are also discussed.
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Affiliation(s)
- Wenbin Niu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
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Abstract
Rare earth nanomaterials, which feature long-lived intermediate energy levels and intraconfigurational 4f-4f transitions, are promising supporters for photon upconversion. Owing to their unique optical properties, rare earth upconversion nanomaterials have found applications in bioimaging, theranostics, photovoltaic devices, and photochemical reactions. Here, we review recent advances in the photon upconversion processes of these nanomaterials. We start by considering energy transfer models involved in the study of upconversion emissions, as well as well-established synthesis strategies to control the size and shape of rare earth upconversion nanomaterials. Progress in engineering energy transfer pathways, which play a dominant role in determining upconversion emission outputs, is then discussed. Lastly, representative optical applications of these materials are considered. The aim of this review is to provide inspiration for researchers to explore novel upconversion nanomaterials and extended optical applications.
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Affiliation(s)
- Ling-Dong Sun
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China; ,
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43
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Gao M, Zhu L, Ong WL, Wang J, Ho GW. Structural design of TiO2-based photocatalyst for H2 production and degradation applications. Catal Sci Technol 2015. [DOI: 10.1039/c5cy00879d] [Citation(s) in RCA: 189] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review aims to provide a comprehensive and contemporary overview, as well as a guide of the development of new generation TiO2 based photocatalysts via structural design for improved solar energy conversion technologies.
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Affiliation(s)
- Minmin Gao
- Department of Electrical and Computer Engineering
- National University of Singapore
- Singapore 117583
| | - Liangliang Zhu
- Department of Electrical and Computer Engineering
- National University of Singapore
- Singapore 117583
| | - Wei Li Ong
- Department of Electrical and Computer Engineering
- National University of Singapore
- Singapore 117583
| | - Jing Wang
- Department of Electrical and Computer Engineering
- National University of Singapore
- Singapore 117583
| | - Ghim Wei Ho
- Department of Electrical and Computer Engineering
- National University of Singapore
- Singapore 117583
- Engineering Science Programme
- National University of Singapore
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44
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45
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Li X, Zhang F, Zhao D. Lab on upconversion nanoparticles: optical properties and applications engineering via designed nanostructure. Chem Soc Rev 2015; 44:1346-78. [DOI: 10.1039/c4cs00163j] [Citation(s) in RCA: 456] [Impact Index Per Article: 50.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This review aims to summarize recent progress in optical properties and applications engineering of upconversion nanoparticles via the designed nanostructure.
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Affiliation(s)
- Xiaomin Li
- Department of Chemistry and Laboratory of Advanced Materials
- Fudan University
- Shanghai 200433
- P. R. China
| | - Fan Zhang
- Department of Chemistry and Laboratory of Advanced Materials
- Fudan University
- Shanghai 200433
- P. R. China
| | - Dongyuan Zhao
- Department of Chemistry and Laboratory of Advanced Materials
- Fudan University
- Shanghai 200433
- P. R. China
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Chen G, Ågren H, Ohulchanskyy TY, Prasad PN. Light upconverting core–shell nanostructures: nanophotonic control for emerging applications. Chem Soc Rev 2015; 44:1680-713. [DOI: 10.1039/c4cs00170b] [Citation(s) in RCA: 435] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Nanophotonic control of light upconversion in the hierarchical core–shell nanostructures, their biomedical, solar energy and security encoding applications were reviewed.
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Affiliation(s)
- Guanying Chen
- Institute for Lasers, Photonics, and Biophotonics and Department of Chemistry
- University at Buffalo
- State University of New York
- Buffalo
- USA
| | - Hans Ågren
- Department of Theoretical Chemistry & Biology
- Royal Institute of Technology
- S-10691 Stockholm
- Sweden
| | - Tymish Y. Ohulchanskyy
- Institute for Lasers, Photonics, and Biophotonics and Department of Chemistry
- University at Buffalo
- State University of New York
- Buffalo
- USA
| | - Paras N. Prasad
- Institute for Lasers, Photonics, and Biophotonics and Department of Chemistry
- University at Buffalo
- State University of New York
- Buffalo
- USA
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47
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Yang W, Li X, Chi D, Zhang H, Liu X. Lanthanide-doped upconversion materials: emerging applications for photovoltaics and photocatalysis. NANOTECHNOLOGY 2014; 25:482001. [PMID: 25397916 DOI: 10.1088/0957-4484/25/48/482001] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Photovoltaics and photocatalysis are two significant applications of clean and sustainable solar energy, albeit constrained by their inability to harvest the infrared spectrum of solar radiation. Lanthanide-doped materials are particularly promising in this regard, with tunable absorption in the infrared region and the ability to convert the long-wavelength excitation into shorter-wavelength light output through an upconversion process. In this review, we highlight the emerging applications of lanthanide-doped upconversion materials in the areas of photovoltaics and photocatalysis. We attempt to elucidate the fundamental physical principles that govern the energy conversion by the upconversion materials. In addition, we intend to draw attention to recent technologies in upconversion nanomaterials integrated with photovoltaic and photocatalytic devices. This review also provides a useful guide to materials synthesis and optoelectronic device fabrication based on lanthanide-doped upconversion materials.
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Affiliation(s)
- Weifeng Yang
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), Singapore 117602
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The Upconversion Luminescence of Er 3+/Yb 3+/Nd 3+ Triply-Doped β-NaYF₄ Nanocrystals under 808-nm Excitation. MATERIALS 2014; 7:7289-7303. [PMID: 28788246 PMCID: PMC5512635 DOI: 10.3390/ma7117289] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Revised: 10/10/2014] [Accepted: 10/30/2014] [Indexed: 01/22/2023]
Abstract
In this paper, Nd3+–Yb3+–Er3+-doped β-NaYF4 nanocrystals with different Nd3+ concentrations are synthesized, and the luminescence properties of the upconversion nanoparticles (UCNPs) have been studied under 808-nm excitation for sensitive biological applications. The upconversion luminescence spectra of NaYF4 nanoparticles with different dopants under 808-nm excitation proves that the Nd3+ ion can absorb the photons effectively, and the Yb3+ ion can play the role of an energy-transfer bridging ion between the Nd3+ ion and Er3+ ion. To investigate the effect of the Nd3+ ion, the decay curves of the 4S3/2 → 4I15/2 transition at 540 nm are measured and analyzed. The NaYF4: 20% Yb3+, 2% Er3+, 0.5% Nd3+ nanocrystals have the highest emission intensity among all samples under 808-nm excitation. The UC (upconversion) mechanism under 808-nm excitation is discussed in terms of the experimental results.
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Yuan C, Chen G, Li L, Damasco JA, Ning Z, Xing H, Zhang T, Sun L, Zeng H, Cartwright AN, Prasad PN, Ågren H. Simultaneous multiple wavelength upconversion in a core-shell nanoparticle for enhanced near infrared light harvesting in a dye-sensitized solar cell. ACS APPLIED MATERIALS & INTERFACES 2014; 6:18018-18025. [PMID: 25238319 DOI: 10.1021/am504866g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The efficiency of most photovoltaic devices is severely limited by near-infrared (NIR) transmission losses. To alleviate this limitation, a new type of colloidal upconversion nanoparticles (UCNPs), hexagonal core-shell-structured β-NaYbF4:Er(3+)(2%)/NaYF4:Nd(3+)(30%), is developed and explored in this work as an NIR energy relay material for dye-sensitized solar cells (DSSCs). These UCNPs are able to harvest light energy in multiple NIR regions, and subsequently convert the absorbed energy into visible light where the DSSCs strongly absorb. The NIR-insensitive DSSCs show compelling photocurrent increases through binary upconversion under NIR light illumination either at 785 or 980 nm, substantiating efficient energy relay by these UCNPs. The overall conversion efficiency of the DSSCs was improved with the introduction of UCNPs under simulated AM 1.5 solar irradiation.
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Affiliation(s)
- Chunze Yuan
- Department of Theoretical Chemistry and Biology, School of Biotechnology, Royal Institute of Technology (KTH) , 10691 Stockholm, Sweden
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Niu W, Chen H, Chen R, Huang J, Palaniappan A, Sun H, Liedberg BG, Tok AIY. Synergetically enhanced near-infrared photoresponse of reduced graphene oxide by upconversion and gold plasmon. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:3637-3643. [PMID: 24821086 DOI: 10.1002/smll.201400400] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 04/17/2014] [Indexed: 06/03/2023]
Abstract
A new route to improve responsivity of reduced graphene oxide (rGO)-based near-infrared photodetectors is reported by coupling upconversion and gold plasmon. Near-infrared light is converted by upconversion nanoparticle into shorter wavelengths that can readily be absorbed by rGO. Further coupling of plasmonic layer increased upconversion emissions and rGO absorption, resulting in an overall enhancement of photo-responsivity by 10 times.
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Affiliation(s)
- Wenbin Niu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
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