51
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Gupta SK, Sahu M, Ghosh PS, Tyagi D, Saxena MK, Kadam RM. Energy transfer dynamics and luminescence properties of Eu3+ in CaMoO4 and SrMoO4. Dalton Trans 2015; 44:18957-69. [DOI: 10.1039/c5dt03280f] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Undoped and europium doped CaMoO4 and SrMoO4 scheelites are synthesized using a complex polymerization method.
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Affiliation(s)
- Santosh K. Gupta
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - M. Sahu
- Radioanalytical Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - P. S. Ghosh
- Materials Science Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - Deepak Tyagi
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - M. K. Saxena
- Radioanalytical Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - R. M. Kadam
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
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52
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Zheng W, Huang P, Tu D, Ma E, Zhu H, Chen X. Lanthanide-doped upconversion nano-bioprobes: electronic structures, optical properties, and biodetection. Chem Soc Rev 2015; 44:1379-415. [DOI: 10.1039/c4cs00178h] [Citation(s) in RCA: 653] [Impact Index Per Article: 72.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The latest advances in lanthanide-doped upconversion nanoparticles were comprehensively reviewed, which covers from their fundamental photophysics to biodetection.
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Affiliation(s)
- Wei Zheng
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Ping Huang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Datao Tu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - En Ma
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Haomiao Zhu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Xueyuan Chen
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
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53
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Ekmekçi MK, Erdem M, Başak AS. Molten salt synthesis, visible and near-IR region spectral properties of europium or neodymium doped CoNb2O6 columbite niobate. Dalton Trans 2015; 44:5379-85. [DOI: 10.1039/c4dt03001j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Emission spectra of the phosphor powders for the 5D0→7F2 transition in CoNb2O6 powders doped with Eu3+ at 300 K.
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Affiliation(s)
- Mete Kaan Ekmekçi
- Marmara University
- Art and Science Faculty
- Chemistry Department
- Inorganic Chemistry Division
- Istanbul
| | - Murat Erdem
- Marmara University
- Art and Science Faculty
- Physics Department
- , Istanbul
- Turkey
| | - Ali Sadi Başak
- Marmara University
- Art and Science Faculty
- Chemistry Department
- Inorganic Chemistry Division
- Istanbul
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54
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de Jesus RA, da Luz LL, Santos DO, Costa JAS, Navickiene S, Gatto CC, Júnior SA, de Mesquita ME. Dual emission tunable in the near-infrared (NIR) and visible (VIS) spectral range by mix-LnMOF. Dalton Trans 2015; 44:17318-25. [DOI: 10.1039/c5dt01920f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, we describe the synthetic approach, crystallographic structure, luminescent behavior in heteronuclear coordination polymers with emission in the visible (Eu3+ and organic ligand) and near-infrared (Nd3+) range.
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Affiliation(s)
| | | | | | | | | | - Claudia Cristina Gatto
- University of Brasilia (IQ-UnB)
- campus Universitário Darcy Ribeiro
- CEP 70904970
- Brasília
- Brazil
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55
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Shukla R, Gupta SK, Grover V, Natarajan V, Tyagi AK. The role of reaction conditions in the polymorphic control of Eu3+ doped YInO3: structure and size sensitive luminescence. Dalton Trans 2015; 44:10628-35. [DOI: 10.1039/c4dt02717e] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Controlled synthetic conditions yielded YInO3:Eu3+ in both C-type and hexagonal modifications which exhibited a tremendous bearing of size and local structure on Eu3+ luminescence, all in a single compound.
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Affiliation(s)
- R. Shukla
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - Santosh K. Gupta
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - V. Grover
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - V. Natarajan
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - A. K. Tyagi
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
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56
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Gupta SK, Nigam S, Yadav AK, Mohapatra M, Jha SN, Majumder C, Bhattacharyya D. An insight into local environment of lanthanide ions in Sr2SiO4:Ln (Ln = Sm, Eu and Dy). NEW J CHEM 2015. [DOI: 10.1039/c5nj01191d] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Site occupancy of Eu2+, Eu3+, Sm3+ and Dy3+ is investigated in Sr2SiO4 using TRFS and EXAFS and complemented by DFT calculations.
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Affiliation(s)
- Santosh K. Gupta
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
| | - Sandeep Nigam
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
| | - Ashok K. Yadav
- Atomic and molecular physics Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
| | - Manoj Mohapatra
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
| | - Shambhu N. Jha
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400085
- India
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57
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Gupta R, Gupta SK, Gamre JS, Lohithakshan KV, Natarajan V, Aggarwal SK. Understanding the Dynamics of Eu
3+
Ions in Room‐Temperature Ionic Liquids – Electrochemical and Time‐Resolved Fluorescence Spectroscopy Studies. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402713] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ruma Gupta
- Fuel Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Santosh K. Gupta
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - J. S. Gamre
- Fuel Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - K. V. Lohithakshan
- Fuel Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - V. Natarajan
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - S. K. Aggarwal
- Fuel Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
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58
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Zhang S, Yang Y, Xia ZQ, Liu XY, Yang Q, Wei Q, Xie G, Chen SP, Gao SL. Eu-MOFs with 2-(4-Carboxyphenyl)imidazo[4,5-f]-1,10-phenanthroline and Ditopic Carboxylates as Coligands: Synthesis, Structure, High Thermostability, and Luminescence Properties. Inorg Chem 2014; 53:10952-63. [DOI: 10.1021/ic501253c] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sheng Zhang
- Key Laboratory
of Synthetic and Natural Functional Molecule Chemistry of Ministry
of Education, College of Chemistry and Materials Science, Northwest University, Xi’an, Shaanxi 710069, P. R. China
| | - Yang Yang
- Key Laboratory
of Synthetic and Natural Functional Molecule Chemistry of Ministry
of Education, College of Chemistry and Materials Science, Northwest University, Xi’an, Shaanxi 710069, P. R. China
| | - Zheng-Qiang Xia
- Key Laboratory
of Synthetic and Natural Functional Molecule Chemistry of Ministry
of Education, College of Chemistry and Materials Science, Northwest University, Xi’an, Shaanxi 710069, P. R. China
| | - Xiang-Yu Liu
- Key Laboratory
of Synthetic and Natural Functional Molecule Chemistry of Ministry
of Education, College of Chemistry and Materials Science, Northwest University, Xi’an, Shaanxi 710069, P. R. China
- School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Qi Yang
- Key Laboratory
of Synthetic and Natural Functional Molecule Chemistry of Ministry
of Education, College of Chemistry and Materials Science, Northwest University, Xi’an, Shaanxi 710069, P. R. China
| | - Qing Wei
- Key Laboratory
of Synthetic and Natural Functional Molecule Chemistry of Ministry
of Education, College of Chemistry and Materials Science, Northwest University, Xi’an, Shaanxi 710069, P. R. China
| | - Gang Xie
- Key Laboratory
of Synthetic and Natural Functional Molecule Chemistry of Ministry
of Education, College of Chemistry and Materials Science, Northwest University, Xi’an, Shaanxi 710069, P. R. China
| | - San-Ping Chen
- Key Laboratory
of Synthetic and Natural Functional Molecule Chemistry of Ministry
of Education, College of Chemistry and Materials Science, Northwest University, Xi’an, Shaanxi 710069, P. R. China
| | - Sheng-Li Gao
- Key Laboratory
of Synthetic and Natural Functional Molecule Chemistry of Ministry
of Education, College of Chemistry and Materials Science, Northwest University, Xi’an, Shaanxi 710069, P. R. China
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59
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Chen MH, Yoshioka T, Ikoma T, Hanagata N, Lin FH, Tanaka J. Photoluminescence and doping mechanism of theranostic Eu 3+/Fe 3+ dual-doped hydroxyapatite nanoparticles. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2014; 15:055005. [PMID: 27877717 PMCID: PMC5099678 DOI: 10.1088/1468-6996/15/5/055005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 08/31/2014] [Indexed: 06/05/2023]
Abstract
Theranostic nanoparticles currently have been regarded as an emerging concept of 'personalized medicine' with diagnostic and therapeutic dual-functions. Eu3+ doped hydroxyapatite (HAp) has been regarded as a promising fluorescent probe for in vivo imaging applications. Additionally, substitution of Ca2+ with Fe3+ in HAp crystal may endow the capability of producing heat upon exposure to a magnetic field. Here we report a preliminary study of doping mechanism and photoluminescence of Eu3+ and Fe3+ doped HAp nanoparticles (Eu/Fe:HAp). HAp with varied concentration of Eu3+ and Fe3+ doping are presented as Eu(10 mol%):HAp, Eu(7 mol%)-Fe(3 mol%):HAp, Eu(5 mol%)-Fe(5 mol%):HAp, Eu(3 mol%)-Fe(7 mol%):HAp, and Fe(10 mol%):HAp in the study. The results showed that the HAp particles, in nano-size with rod-like morphology, were successfully doped with Eu3+ and Fe3+, and the particles can be well suspended in cell culture medium. Photoluminescence analysis revealed that particles have prominent emissions at 536 nm, 590 nm, 615 nm, 650 nm and 695 nm upon excitation at a wavelength of 397 nm. Moreover, these Eu/Fe:HAp nanoparticles belonged to B-type carbonated HAp, which has been considered an effective biodegradable and biocompatible drug/gene carrier in biological applications.
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Affiliation(s)
- Min-Hua Chen
- Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan
- Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, Tokyo, Japan
| | - Tomohiko Yoshioka
- Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, Tokyo, Japan
| | - Toshiyuki Ikoma
- Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, Tokyo, Japan
| | - Nobutaka Hanagata
- Nanotechnology Innovation Station, National Institute for Materials Science, Tsukuba, Japan
| | - Feng-Huei Lin
- Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli County, Taiwan
| | - Junzo Tanaka
- Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, Tokyo, Japan
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60
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Rabuffetti FA, Brutchey RL. Complex perovskite oxide nanocrystals: low-temperature synthesis and crystal structure. Dalton Trans 2014; 43:14499-513. [DOI: 10.1039/c4dt01376j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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61
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Zhang Y, Zhao Q, Shao B, Lü W, Dong X, You H. Facile hydrothermal synthesis and luminescent properties of Eu-doped CaF2–YF3alkaline-earth ternary fluoride microspheres. RSC Adv 2014. [DOI: 10.1039/c4ra04185b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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62
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Hydrothermal Fabrication and Luminescence Properties of One-Dimensional TiO2:Eu3+Spindlelike Nanorods. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402062] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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63
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Xie J, Shu HM, Hu HM, Han ZX, Shen SS, Yuan F, Yang ML, Dong FX, Xue GL. Syntheses, Structures, and Luminescence Properties of Lanthanide Coordination Polymers with a Polycarboxylic Terpyridyl Derivative Ligand. Chempluschem 2014. [DOI: 10.1002/cplu.201402030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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64
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Rabuffetti FA, Culver SP, Lee JS, Brutchey RL. Local structural investigation of Eu(3+)-doped BaTiO3 nanocrystals. NANOSCALE 2014; 6:2909-2914. [PMID: 24477861 DOI: 10.1039/c3nr06610j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A structural investigation of sub-15 nm xEu:BaTiO3 nanocrystals (x = 0-5 mol%) was conducted to determine the distribution of the Eu(3+) ion in the BaTiO3 lattice. Pair distribution function analysis of X-ray total scattering data (PDF), steady-state photoluminescence, and X-ray absorption spectroscopy (XANES/EXAFS) were employed to interrogate the crystal structure of the nanocrystals and the local atomic environment of the Eu(3+) ion. The solubility limit of the Eu(3+) ion in the nanocrystalline BaTiO3 host synthesized via the vapor diffusion sol-gel method was estimated to be ∼4 mol%. A contraction of the perovskite unit cell volume was observed upon incorporation of 1 mol% of europium, while an expansion was observed for nominal concentrations between 1 and 3 mol%. The average Eu-O distance and europium coordination number decreased from 2.46 Å and 9.9 to 2.42 Å and 8.6 for europium concentrations of 1 and 5 mol%, respectively. Structural trends were found to be consistent with the substitution of Eu(3+) for Ba(2+)via creation of a Ti(4+) vacancy at low europium concentrations (<1 mol%), and with the substitution of Eu(3+) for both Ba(2+) and Ti(4+) at high europium concentrations (1-3 mol%). The significance of accounting for local structural distortions to rationalize the distribution of lanthanide ions in the perovskite host is highlighted.
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Affiliation(s)
- Federico A Rabuffetti
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA.
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65
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da Silva FF, de Menezes FL, da Luz LL, Alves S. Supramolecular luminescent hydrogels based on β-amino acid and lanthanide ions obtained by self-assembled hydrothermal reactions. NEW J CHEM 2014. [DOI: 10.1039/c3nj01560b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Hydrothermal synthesis of four new supramolecular hydrogels based on lanthanide ions with promising properties for RGB systems.
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Affiliation(s)
| | | | | | - Severino Alves
- Departamento de Quimica Fundamental
- Universidade Federal de Pernambuco
- Recife, Brazil
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66
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Rodrigues CV, Luz LL, Dutra JDL, Junior SA, Malta OL, Gatto CC, Streit HC, Freire RO, Wickleder C, Rodrigues MO. Unusual photoluminescence properties of the 3D mixed-lanthanide–organic frameworks induced by dimeric structures: a theoretical and experimental approach. Phys Chem Chem Phys 2014; 16:14858-66. [PMID: 24924492 DOI: 10.1039/c4cp00405a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Experimental and theoretical investigation of the 3D Ln-MOFs that present singular spectral signature.
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Affiliation(s)
- Carime V. Rodrigues
- LIMA-Laboratório de Inorgânica e Materiais
- Instituto de Química
- Campus Universitário Darcy Ribeiro
- Brasilia-DF, Brazil
| | - Leonis L. Luz
- Departamento de Química Fundamental
- UFPE
- Recife-PE, Brazil
| | - José Diogo L. Dutra
- Departamento de Química
- Pople Computational Chemistry Laboratory
- Universidade Federal de Sergipe
- São Cristóvão, Brazil
| | | | - Oscar L. Malta
- Departamento de Química Fundamental
- UFPE
- Recife-PE, Brazil
| | - Claudia C. Gatto
- LIMA-Laboratório de Inorgânica e Materiais
- Instituto de Química
- Campus Universitário Darcy Ribeiro
- Brasilia-DF, Brazil
| | - Huayna C. Streit
- Science and Technology
- Inorganic Chemistry
- University of Siegen
- 57068 Siegen, Germany
| | - Ricardo O. Freire
- Departamento de Química
- Pople Computational Chemistry Laboratory
- Universidade Federal de Sergipe
- São Cristóvão, Brazil
| | - Claudia Wickleder
- Science and Technology
- Inorganic Chemistry
- University of Siegen
- 57068 Siegen, Germany
| | - Marcelo Oliveira Rodrigues
- LIMA-Laboratório de Inorgânica e Materiais
- Instituto de Química
- Campus Universitário Darcy Ribeiro
- Brasilia-DF, Brazil
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67
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Gai YL, Jiang FL, Chen L, Bu Y, Su KZ, Al-Thabaiti SA, Hong MC. Photophysical Studies of Europium Coordination Polymers Based on a Tetracarboxylate Ligand. Inorg Chem 2013; 52:7658-65. [DOI: 10.1021/ic400777c] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yan-Li Gai
- State Key Laboratory of Structure Chemistry,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, People’s
Republic of China
- Graduate School of the Chinese Academy of Sciences, Beijing, 100049, People’s Republic of China
| | - Fei-Long Jiang
- State Key Laboratory of Structure Chemistry,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, People’s
Republic of China
| | - Lian Chen
- State Key Laboratory of Structure Chemistry,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, People’s
Republic of China
| | - Yang Bu
- State Key Laboratory of Structure Chemistry,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, People’s
Republic of China
- Graduate School of the Chinese Academy of Sciences, Beijing, 100049, People’s Republic of China
| | - Kong-Zhao Su
- State Key Laboratory of Structure Chemistry,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, People’s
Republic of China
- Graduate School of the Chinese Academy of Sciences, Beijing, 100049, People’s Republic of China
| | - Shaeel A. Al-Thabaiti
- Department
of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Abrabia
| | - Mao-Chun Hong
- State Key Laboratory of Structure Chemistry,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, People’s
Republic of China
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68
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Song XQ, Wang L, Zhao MM, Cheng GQ, Wang XR, Peng YQ. Synthesis, crystal structure and luminescence properties of homodinuclear lanthanide complexes with a new tetrapodal thenylsalicylamide ligand. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.03.040] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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69
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Liu Y, Tu D, Zhu H, Ma E, Chen X. Lanthanide-doped luminescent nano-bioprobes: from fundamentals to biodetection. NANOSCALE 2013; 5:1369-84. [PMID: 23223801 DOI: 10.1039/c2nr33239f] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Trivalent lanthanide (Ln(3+))-doped luminescent inorganic nanoparticles (NPs), characterized by long-lived luminescence, large Stokes and/or anti-Stokes shifts, narrow emission bands and high photochemical stability, are considered to be promising candidates as luminescent bioprobes in biomedicine and biotechnology. In this feature article, we provide a brief overview of the most recent advances in Ln(3+)-doped luminescent inorganic NPs as sensors, which covers from their chemical and physical fundamentals to biodetection, such as controlled synthesis methodology, surface modification chemistry, optical physics, and their promising applications in diverse bioassays, with an emphasis on heterogeneous and homogeneous in vitro biodetection. Finally, some of the most important emerging trends and future efforts toward this active research field are also proposed.
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Affiliation(s)
- Yongsheng Liu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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70
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Gao Y, Cao J, Song Y, Zhang G, Wang Y, Liu Z. Structure control and crystal-to-crystal transformation for two series of lanthanide–organic coordination polymers. CrystEngComm 2013. [DOI: 10.1039/c3ce41207e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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71
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Liu Y, Tu D, Zhu H, Chen X. Lanthanide-doped luminescent nanoprobes: controlled synthesis, optical spectroscopy, and bioapplications. Chem Soc Rev 2013; 42:6924-58. [DOI: 10.1039/c3cs60060b] [Citation(s) in RCA: 697] [Impact Index Per Article: 63.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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72
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Wang P, Fan RQ, Liu XR, Wang LY, Yang YL, Cao WW, Yang B, Hasi W, Su Q, Mu Y. Two-/three-dimensional open lanthanide–organic frameworks containing rigid/flexible dicarboxylate ligands: synthesis, crystal structure and photoluminescent properties. CrystEngComm 2013. [DOI: 10.1039/c3ce26684b] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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73
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Chen Y, Chen W, Ju Z, Gao Q, Lei T, Liu W, Li Y, Gao D, Li W. Synthesis, structures and luminescent properties of a series of novel SrII–LnIII (Ln = Eu, Gd, Tb) coordination polymers. Dalton Trans 2013; 42:10495-502. [DOI: 10.1039/c3dt51184g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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74
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Copper(II)–lanthanide(III) coordination polymers constructed from pyridine-2,5-dicarboxylic acid: Preparation, crystal structure and photoluminescence. J SOLID STATE CHEM 2013. [DOI: 10.1016/j.jssc.2012.08.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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75
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Hasna K, Kumar SS, Komath M, Varma MR, Jayaraj MK, Kumar KR. Synthesis of chemically pure, luminescent Eu3+ doped HAp nanoparticles: a promising fluorescent probe for in vivo imaging applications. Phys Chem Chem Phys 2013; 15:8106-11. [DOI: 10.1039/c3cp42648c] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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76
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Gai YL, Xiong KC, Chen L, Bu Y, Li XJ, Jiang FL, Hong MC. Visible and NIR Photoluminescence Properties of a Series of Novel Lanthanide–Organic Coordination Polymers Based on Hydroxyquinoline–Carboxylate Ligands. Inorg Chem 2012. [PMID: 23205639 DOI: 10.1021/ic301261g] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yan-Li Gai
- State Key Laboratory
of Structure Chemistry, Fujian Institute of Research on the Structure
of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
- Graduate School of the Chinese Academy of Sciences, Beijing, 100049,
China
| | - Ke-Cai Xiong
- State Key Laboratory
of Structure Chemistry, Fujian Institute of Research on the Structure
of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
- Graduate School of the Chinese Academy of Sciences, Beijing, 100049,
China
| | - Lian Chen
- State Key Laboratory
of Structure Chemistry, Fujian Institute of Research on the Structure
of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
| | - Yang Bu
- State Key Laboratory
of Structure Chemistry, Fujian Institute of Research on the Structure
of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
- Graduate School of the Chinese Academy of Sciences, Beijing, 100049,
China
| | - Xing-Jun Li
- State Key Laboratory
of Structure Chemistry, Fujian Institute of Research on the Structure
of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
- Graduate School of the Chinese Academy of Sciences, Beijing, 100049,
China
| | - Fei-Long Jiang
- State Key Laboratory
of Structure Chemistry, Fujian Institute of Research on the Structure
of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
| | - Mao-Chun Hong
- State Key Laboratory
of Structure Chemistry, Fujian Institute of Research on the Structure
of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
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77
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Linganna K, Jayasankar CK. Optical properties of Eu³+ ions in phosphate glasses. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 97:788-797. [PMID: 22902576 DOI: 10.1016/j.saa.2012.07.031] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 06/26/2012] [Accepted: 07/09/2012] [Indexed: 06/01/2023]
Abstract
Eu(3+)-doped phosphate (P(2)O(5)+K(2)O+SrO+Al(2)O(3)+Eu(2)O(3)) glasses with varying Eu(2)O(3) concentration have been prepared by standard melt quenching technique and are characterized through various spectroscopic techniques at room temperature. Luminescence spectra of these glasses exhibit the characteristic emission of Eu(3+) ion with an intense and most prominent red emission attributed to (5)D(0)→(7)F(2) transition. Crystal-field analysis has been carried out to estimate the local symmetry in the vicinity of Eu(3+) ions. Judd-Ofelt parameters have been evaluated from the luminescence intensity ratios of (5)D(0)→(7)F(J) (J=2, 4 and 6) to (5)D(0)→(7)F(1) transitions as well as absorption spectrum under different constraints. Decay rates for the (5)D(0) level of Eu(3+) ions have been recorded by monitoring the emission at around 609 nm corresponding to (5)D(0)→(7)F(2) transition. The experimental lifetime for the (5)D(0) level in title glasses is independent of Eu(3+) ion concentration.
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Affiliation(s)
- K Linganna
- Department of Physics, Sri Venkateswara University, Tirupati 517 502, India
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78
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Syntheses, structures and photoluminescence of two microporous lanthanide coordination polymers. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2012.05.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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79
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Mingyan W, Feilong J, Youfu Z, Rui F, Lian C, Maochun H. Photoluminescences and 1D chain-like structures with dinuclear lanthanide(III) units featuring bipyridine-tetracarboxylate. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2011.09.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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80
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Dembski S, Milde M, Dyrba M, Schweizer S, Gellermann C, Klockenbring T. Effect of pH on the synthesis and properties of luminescent SiO2/calcium phosphate:Eu3+ core-shell nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:14025-14032. [PMID: 21988231 DOI: 10.1021/la2021116] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A novel method for the synthesis of luminescent SiO(2)/calcium phosphate (CaP):Eu(3+) core-shell nanoparticles (NPs) was developed via a sol-gel route followed by annealing at a temperature of 800 °C. The object of this study was the investigation of the effect of pH on the formation of a CaP shell around the silica core. The resulting annealed NPs exhibited an amorphous SiO(2) core and a crystalline luminescent shell. The formation of a CaP layer was possible at pH below 4.5 and above 6.5 during the coating step. The crystal structure of the shell was studied by X-ray diffraction analysis. Hydroxyapatite (HAp) and α-tricalcium phosphate were detected as crystal phases of the surrounding layer. However, NPs produced under basic conditions exhibited a higher crystallinity of the CaP layer than did samples coated at pH below 4.5. In the pH interval between 4.5 and 6.5, no shell growth but the formation of secondary NPs containing CaO and Ca(OH)(2) was observed. Furthermore, SiO(2)/CP:Eu(3+) core-shell NPs were investigated by transmission electron microscopy, dynamic light scattering, Fourier transform infrared spectroscopy, inductively coupled plasma optical emission spectrometry, and photoluminescence spectroscopy. The resulting HAp-coated NPs were successfully tested by a cell-culture-based viability assay with respect to a later application as a luminescent marker for biomedical applications.
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Affiliation(s)
- Sofia Dembski
- Fraunhofer Institute for Silicate Research ISC, Neunerplatz 2, 97082 Würzburg, Germany.
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81
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Wang Y, Liu Y, Xiao Q, Zhu H, Li R, Chen X. Eu3+ doped KYF4 nanocrystals: synthesis, electronic structure, and optical properties. NANOSCALE 2011; 3:3164-3169. [PMID: 21677997 DOI: 10.1039/c1nr10341e] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Monodisperse cubic-phase KYF(4) : Eu(3+) nanocrystals (NCs) were synthesized via a modified thermal decomposition method. The optical properties of Eu(3+) in KYF(4) NCs including multiple luminescence centers, site symmetry, luminescence dynamics, as well as crystal-field levels of Eu(3+) were investigated in detail based on high-resolution photoluminescence (PL) spectroscopy at low temperature (10 K). Different from Eu(3+) in bulk counterparts, multiple sites of Eu(3+) in KYF(4) NCs were revealed by using the luminescence of Eu(3+) as a sensitive structural probe. The highest site symmetry of Eu(3+) at new near-surface site was deduced to be distorted from O(h) to D(2) (or C(2v)). Due to a small filling factor (0.45) of NCs, the PL lifetime of (5)D(0) of Eu(3+) in KYF(4) NCs was much longer than that in bulk counterparts, which was found to be significantly affected by the surrounding medium around the NCs.
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Affiliation(s)
- Yanhua Wang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
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82
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Ruan Y, Xiao Q, Luo W, Li R, Chen X. Optical properties and luminescence dynamics of Eu3+-doped terbium orthophosphate nanophosphors. NANOTECHNOLOGY 2011; 22:275701. [PMID: 21597160 DOI: 10.1088/0957-4484/22/27/275701] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The development of luminescent inorganic nanocrystals (NCs) doped with rare-earth (RE) ions has attracted increasing interest owing to their distinct optical properties and versatile applications in time-resolved bioassays, multiplex biodetection, DNA hybridization and bioimaging. Hexagonal TbPO4:Eu3+ NCs (10-30 nm) were synthesized via a facile hydrothermal method assisted with oleic acid (OA) surfactants, which exhibit tunable emissions from green to red by varying the concentration of Eu3+. The Tb3+-to-Eu3+ energy transfer efficiency observed reaches up to 94%. Different from their bulk counterparts, a new interface-state band (316 nm) in addition to the commonly observed spin-forbidden 4f-5d transition band (265 nm) of Tb3+ was found to be dominant in the excitation spectrum of NCs due presumably to the formation of surface TbPO4/OA complexes, which provides an additional excitation antenna in practical utilization. Two kinds of luminescence sites of Eu3+ in TbPO4 NCs, with the site symmetry of C2 or C1, were identified based on the emission spectra at 10 K and room temperature. Furthermore, the photoluminescence (PL) dynamics of Tb3+ ions in pure TbPO4 NCs have been revealed. Compared to the exponential PL decay in bulk counterparts induced by very fast energy migration, the non-exponential decay from 5D4 of Tb3+ in TbPO4 NCs is mainly attributed to the diffusion-limited energy migration due to more rapid energy transfer from Tb3+ to defects than the energy migration among Tb3+.
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Affiliation(s)
- Ye Ruan
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People's Republic of China
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83
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Liu TF, Zhang W, Sun WH, Cao R. Conjugated Ligands Modulated Sandwich Structures and Luminescence Properties of Lanthanide Metal–Organic Frameworks. Inorg Chem 2011; 50:5242-8. [DOI: 10.1021/ic200579j] [Citation(s) in RCA: 110] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tian-Fu Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, P.R. China
| | - Wenjuan Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P.R. China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P.R. China
| | - Rong Cao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, P.R. China
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84
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Gao D, Zheng H, Zhang X, Gao W, Tian Y, Li J, Cui M. Luminescence enhancement and quenching by codopant ions in lanthanide doped fluoride nanocrystals. NANOTECHNOLOGY 2011; 22:175702. [PMID: 21411915 DOI: 10.1088/0957-4484/22/17/175702] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Luminescence enhancement (LE) and quenching for lanthanide (Ln) doped nanocrystals is obtained by a second Ln(3+) ion doping method. Singly or doubly doped LaOF, LaF(3) and NaYF(4) nanocrystals are studied in detail under selective or two-color excitations. The underlying reason for LE by codoping is explored, and a mechanism of the enhancement based on the low local point symmetry effect of the matrix is proposed. It is found that the modification of the local environment induced by dopant ions can result in LE if the non-radiative relaxation probability can be ignored. The observations reported here should be useful for improving the quality of Ln(3+) doped nanomaterials.
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Affiliation(s)
- Dangli Gao
- College of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, Shaanxi, People's Republic of China
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85
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Zhu H, Li R, Luo W, Chen X. Eu3+-doped β-Ga2O3 nanophosphors: annealing effect, electronic structure and optical spectroscopy. Phys Chem Chem Phys 2011; 13:4411-9. [PMID: 21246126 DOI: 10.1039/c0cp02520h] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A comprehensive survey of electronic structure and optical properties of rare-earth ions-doped semiconductor is of vital importance for their potential applications. In this work, Eu(3+)-doped β-Ga(2)O(3) nanocrystals were synthesized via a combustion method. The evolution of the optical properties of nanophosphors with increasing the annealing temperature was investigated in detail by means of excitation and emission spectra at room temperature and 10 K. Eu(3+) ions were proved to be incorporated into the crystal lattice of the β-Ga(2)O(3) phase after annealing the as-prepared nanoparticles at 1100 °C. It was observed that the substitution of Eu(3+) for Ga(3+) occurred at merely single site, in spite of two crystallographically nonequivalent sites of Ga(3+) in β-Ga(2)O(3). Spectroscopic evidence corroborated and clarified the local symmetry of C(s) for Eu(3+) at this single site. From the high-resolution excitation and emission spectra, 71 crystal-field levels of Eu(3+) in β-Ga(2)O(3) were identified and analyzed in terms of 19 freely varied free-ions and crystal-field parameters based on C(s) symmetry. The standard deviation of the final fitting is as low as 12.9 cm(-1), indicating an excellent agreement between experimental and calculated energy levels. The temperature-dependent luminescence dynamics of the (5)D(0) multiplet for Eu(3+) in β-Ga(2)O(3) phosphors has also been revealed for the first time from 10 to 300 K.
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Affiliation(s)
- Haomiao Zhu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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86
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Ananias D, Kostova M, Paz FAA, Neto ANC, De Moura RT, Malta OL, Carlos LD, Rocha J. Molecule-like Eu3+-dimers embedded in an extended system exhibit unique photoluminescence properties. J Am Chem Soc 2009; 131:8620-6. [PMID: 19530732 DOI: 10.1021/ja901820z] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Much is known about the photoluminescence of lanthanide-containing systems, particularly amorphous silicates or organic-inorganic hybrids and crystalline metal-organic frameworks. Comparatively, stoichiometric microporous Ln-silicates are poorly studied. Here, we report the exceptional photoluminescence of microporous AV-24, K(7)[Ln(3)Si(12)O(32)] x xH(2)O (Ln(3+) = Sm(3+), Eu(3+), Gd(3+), Tb(3+)), the first silicate possessing Ln(3+)-O-Ln(3+) dimers (inter-Ln distance ca. 3.9 A), i.e., two edge-sharing {LnO(6)} octahedra embedded in a crystalline matrix. It is totally unprecedented that in AV-24 Eu(3+)-O-Eu(3+) dimers behave like discrete entities, i.e., molecules: they (i) have a unique emission signature, with pseudopoint group symmetry (C(i)), different from the symmetry (C(1)) of each individual constituent Eu(3+) ion, and (ii) exhibit the unusually long (5)D(0) lifetime of 10.29 ms (12 K). In accord with the experimental evidence, a molecular orbital model shows that the Eu(3+)-O-Eu(3+) dimers are energetically more stable than the individual metal ions.
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Affiliation(s)
- Duarte Ananias
- Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal
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87
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de Cárcer IA, Dántoni H, Barboza-Flores M, Correcher V, Jaque F. KCl: Eu2+ as a solar UV-C radiation dosimeter. Optically stimulated luminescence and thermoluminescence analyses. J RARE EARTH 2009. [DOI: 10.1016/s1002-0721(08)60292-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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88
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Jia G, Law GL, Wong KL, Tanner PA, Wong WT. Synthesis, Crystal Structures, and Luminescence of Organic-Lanthanide Complexes with Nicotinate and Isonicotinate Ligands. Inorg Chem 2008; 47:9431-8. [DOI: 10.1021/ic8010103] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Guohua Jia
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong S.A.R., P.R. China, and Department of Chemistry, The University of Hong Kong, Pokfulam, Hong Kong S.A.R., P.R. China
| | - Ga-Lai Law
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong S.A.R., P.R. China, and Department of Chemistry, The University of Hong Kong, Pokfulam, Hong Kong S.A.R., P.R. China
| | - Ka-Leung Wong
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong S.A.R., P.R. China, and Department of Chemistry, The University of Hong Kong, Pokfulam, Hong Kong S.A.R., P.R. China
| | - Peter A. Tanner
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong S.A.R., P.R. China, and Department of Chemistry, The University of Hong Kong, Pokfulam, Hong Kong S.A.R., P.R. China
| | - Wing-Tak Wong
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong S.A.R., P.R. China, and Department of Chemistry, The University of Hong Kong, Pokfulam, Hong Kong S.A.R., P.R. China
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89
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Li L, Zhou S, Zhang S. Investigation on charge transfer bands of Ce4+ in Sr2CeO4 blue phosphor. Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.01.033] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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90
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Sorption of Eu3+ on dickite particles studied by Raman, luminescence, and X-ray photoelectron spectroscopies. CR CHIM 2007. [DOI: 10.1016/j.crci.2007.01.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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91
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Li L, Zhang S. Dependence of Charge Transfer Energy on Crystal Structure and Composition in Eu3+-Doped Compounds. J Phys Chem B 2006; 110:21438-43. [PMID: 17064092 DOI: 10.1021/jp0552224] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a method for estimating the positions of charge transfer (CT) bands in Eu3+-doped complex crystals. The environmental factor (h(e)) influencing the CT energy is presented. h(e) consists of four chemical bond parameters: the covalency, the bond volume polarization, the presented charge of the ligand in the chemical bond, and the coordination number of the central ion. These parameters are calculated with the dielectric theory of complex crystals. The relationship between the experimental CT energies and calculated environmental factors was established by an empirical formula. The calculated values are in good agreement with the experimental results. Such a relationship was confirmed by detailed analysis. In addition, our method is also useful to predict the charge-transfer position of any other rare earth ion.
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Affiliation(s)
- Ling Li
- Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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