1
|
Carneiro Neto AN, Moura RT, Carlos LD, Malta OL, Sanadar M, Melchior A, Kraka E, Ruggieri S, Bettinelli M, Piccinelli F. Dynamics of the Energy Transfer Process in Eu(III) Complexes Containing Polydentate Ligands Based on Pyridine, Quinoline, and Isoquinoline as Chromophoric Antennae. Inorg Chem 2022; 61:16333-16346. [PMID: 36201622 PMCID: PMC9580001 DOI: 10.1021/acs.inorgchem.2c02330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
In this work, we investigated from a theoretical point
of view
the dynamics of the energy transfer process from the ligand to Eu(III)
ion for 12 isomeric species originating from six different complexes
differing by nature of the ligand and the total charge. The cationic
complexes present the general formula [Eu(L)(H2O)2]+ (where L = bpcd2– = N,N′-bis(2-pyridylmethyl)-trans-1,2-diaminocyclohexane N,N′-diacetate;
bQcd2– = N,N′-bis(2-quinolinmethyl)-trans-1,2-diaminocyclohexane N,N′-diacetate; and bisoQcd2– = N,N′-bis(2-isoquinolinmethyl)-trans-1,2-diaminocyclohexane N,N′-diacetate), while the neutral complexes present
the Eu(L)(H2O)2 formula (where L = PyC3A3– = N-picolyl-N,N′,N′-trans-1,2-cyclohexylenediaminetriacetate; QC3A3– = N-quinolyl-N,N′,N′-trans-1,2-cyclohexylenediaminetriacetate;
and isoQC3A3– = N-isoquinolyl-N,N′,N′-trans-1,2-cyclohexylenediaminetriacetate).
Time-dependent density functional theory (TD-DFT) calculations provided
the energy of the ligand excited donor states, distances between donor
and acceptor orbitals involved in the energy transfer mechanism (RL), spin-orbit coupling matrix elements, and
excited-state reorganization energies. The intramolecular energy transfer
(IET) rates for both singlet-triplet intersystem crossing and ligand-to-metal
(and vice versa) involving a multitude of ligand and Eu(III) levels
and the theoretical overall quantum yields (ϕovl)
were calculated (the latter for the first time without the introduction
of experimental parameters). This was achieved using a blend of DFT,
Judd–Ofelt theory, IET theory, and rate equation modeling.
Thanks to this study, for each isomeric species, the most efficient
IET process feeding the Eu(III) excited state, its related physical
mechanism (exchange interaction), and the reasons for a better or
worse overall energy transfer efficiency (ηsens)
in the different complexes were determined. The spectroscopically
measured ϕovl values are in good agreement with the
ones obtained theoretically in this work. Photophysical properties of 12 Eu(III)
complexes with pyridine,
quinoline, and isoquinoline ligands in aqueous solutions were elucidated
and predicted through a theoretical protocol using a blend of DFT,
Judd−Ofelt theory, intramolecular energy transfer theory, and
coupled rate equation modeling calculations. The theoretical procedure
is general and can be extended to any lanthanide-based complexes.
Collapse
Affiliation(s)
- Albano N Carneiro Neto
- Physics Department and CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193Aveiro, Portugal
| | - Renaldo T Moura
- Department of Chemistry and Physics, Federal University of Paraíba, 58397-000Areia, Brazil.,Department of Chemistry, Southern Methodist University, Dallas, Texas75275-0314, United States
| | - Luís D Carlos
- Physics Department and CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193Aveiro, Portugal
| | - Oscar L Malta
- Department of Fundamental Chemistry, Federal University of Pernambuco, 50740-560Recife, Brazil
| | - Martina Sanadar
- Dipartimento Politecnico di Ingegneria e Architettura, Laboratorio di Tecnologie Chimiche, University of Udine, 33100Udine, Italy
| | - Andrea Melchior
- Dipartimento Politecnico di Ingegneria e Architettura, Laboratorio di Tecnologie Chimiche, University of Udine, 33100Udine, Italy
| | - Elfi Kraka
- Department of Chemistry, Southern Methodist University, Dallas, Texas75275-0314, United States
| | - Silvia Ruggieri
- Luminescent Materials Laboratory, Department of Biotechnology, University of Verona and INSTM, UdR Verona, 37134Verona, Italy
| | - Marco Bettinelli
- Luminescent Materials Laboratory, Department of Biotechnology, University of Verona and INSTM, UdR Verona, 37134Verona, Italy
| | - Fabio Piccinelli
- Luminescent Materials Laboratory, Department of Biotechnology, University of Verona and INSTM, UdR Verona, 37134Verona, Italy
| |
Collapse
|
2
|
Marqueño T, Pellicer-Porres J, Errandonea D, Santamaria-Perez D, Martinez-Garcia D, Rodríguez-Hernández P, Muñoz A, Nieves-Pérez I, Achary SN, Bettinelli M. Lattice dynamics of zircon-type NdVO 4and scheelite-type PrVO 4under high-pressure. J Phys Condens Matter 2021; 34:025404. [PMID: 34644692 DOI: 10.1088/1361-648x/ac2f6e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 10/13/2021] [Indexed: 06/13/2023]
Abstract
Zircon-type NdVO4and scheelite-type PrVO4have been studied by means of Raman spectroscopy up to approximately 20 GPa. In the first compound, zircon-scheelite and scheelite-fergusonite phase transitions are reported at 6.4(3) and 19.6(4) GPa, respectively. In the case of scheelite-type PrVO4, a reversible phase transition to a PbWO4-III structure is observed at 16.8(5) GPa. In both cases, a scheelite-type structure is recovered in a metastable state at low pressures. The pressure evolution of the Raman modes is also reported. Our experimental findings are supported byab initiocalculations, which allowed us to discuss the role of mechanic and dynamical instabilities in the phase transition mechanisms.
Collapse
Affiliation(s)
- T Marqueño
- Departamento de Física Aplicada-ICMUV, Universidad de Valencia, Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - J Pellicer-Porres
- Departamento de Física Aplicada-ICMUV, Universidad de Valencia, Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - D Errandonea
- Departamento de Física Aplicada-ICMUV, Universidad de Valencia, Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - D Santamaria-Perez
- Departamento de Física Aplicada-ICMUV, Universidad de Valencia, Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - D Martinez-Garcia
- Departamento de Física Aplicada-ICMUV, Universidad de Valencia, Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - P Rodríguez-Hernández
- Departamento de Física, Instituto de Materiales y Nanotecnología, Universidad de La Laguna, La Laguna 38200, Tenerife, Spain
| | - A Muñoz
- Departamento de Física, Instituto de Materiales y Nanotecnología, Universidad de La Laguna, La Laguna 38200, Tenerife, Spain
| | - I Nieves-Pérez
- Grupo de Computación de Altas Prestaciones, Departamento de Ingeniería Informática y de Sistemas, Universidad de La Laguna, La Laguna 38200, Tenerife, Spain
| | - S N Achary
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - M Bettinelli
- Laboratorio Materiali Luminescenti, Dipartimento di Biotecnologie, Università di Verona, and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| |
Collapse
|
3
|
Piccinelli F, Nardon C, Bettinelli M, Melchior A, Tolazzi M, Zinna F, Di Bari L. Lanthanide‐Based Complexes Containing a Chiral
trans
‐1,2‐Diaminocyclohexane (DACH) Backbone: Spectroscopic Properties and Potential Applications. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Fabio Piccinelli
- Luminescent Materials Laboratory DB, University of Verona, and INSTM, UdR Verona Strada Le Grazie 15 37134 Verona Italy
| | - Chiara Nardon
- Luminescent Materials Laboratory DB, University of Verona, and INSTM, UdR Verona Strada Le Grazie 15 37134 Verona Italy
| | - Marco Bettinelli
- Luminescent Materials Laboratory DB, University of Verona, and INSTM, UdR Verona Strada Le Grazie 15 37134 Verona Italy
| | - Andrea Melchior
- Dipartimento Politecnico di ingegneria e architettura Laboratorio di Tecnologie Chimiche University of Udine Via Cotonificio 108 33100 Udine Italy
| | - Marilena Tolazzi
- Dipartimento Politecnico di ingegneria e architettura Laboratorio di Tecnologie Chimiche University of Udine Via Cotonificio 108 33100 Udine Italy
| | - Francesco Zinna
- Department of Chemistry and Industrial Chemistry Via Moruzzi 13 56124 Pisa Italy
| | - Lorenzo Di Bari
- Department of Chemistry and Industrial Chemistry Via Moruzzi 13 56124 Pisa Italy
| |
Collapse
|
4
|
Piccinelli F, Carrasco I, Ma CG, Bettinelli M. Systematic Analysis of the Crystal Chemistry and Eu 3+ Spectroscopy along the Series of Double Perovskites Ca 2LnSbO 6 (Ln = La, Eu, Gd, Lu, and Y). Inorg Chem 2021; 60:8259-8266. [PMID: 34019423 PMCID: PMC8277163 DOI: 10.1021/acs.inorgchem.1c00932] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Eu3+ (1
mol %)-doped Ca2LnSbO6 (replacing Ln3+; Ln = Lu, Y, Gd, and La) and Ca2EuSbO6 were
synthesized and structurally characterized
by means of X-ray powder diffraction. The Eu3+ luminescence
spectroscopy of the doped samples and of Ca2EuSbO6 has been carefully investigated upon collection of the excitation/emission
spectra and luminescence decay curves of the main excited states.
Surprisingly, apart from the dominant red emission from 5D0, all the doped samples show an uncommon blue and green
emission contribution from 5DJ (J = 1, 2, and 3). This is made possible thanks
to both multiphonon and cross-relaxation mechanism inefficiencies.
However, the emission from 5D3 is more efficient
and the decay kinetics of the 5DJ (J = 0, 1, and 2) levels is slower in the case
of Y- and Lu-based doped samples. This evidence can find a possible
explanation in the crystal chemistry of this family of double perovskites:
our structural investigation suggests an uneven distribution of the
Eu3+ dopant ions in Ca2YSbO6 and
Ca2LuSbO6 hosts of the general A2BB′O6 formula. The luminescent center is mainly
located in the A crystal site, and on average, the Eu–Eu distances
are longer than in the case of the Gd- and La-based matrix. These
longer distances can further reduce the efficiency of the cross-relaxation
mechanism and, consequently, the radiative transitions are more efficient.
The slower depopulation of Eu3+ 5D2 and 5D1 levels in Ca2YSbO6 and
Ca2LuSbO6 hosts is reflected in the longer rise
observed in the 5D1 and 5D0 decay curves, respectively. Finally, in Ca2EuSbO6, the high Eu3+ concentration gives rise to an
efficient cross-relaxation within the subset of the lanthanide ions
so that no emission from 5DJ (J = 1, 2, and 3) is possible and the 5D0 decay kinetics is faster than for the doped samples. Eu3+ as a dopant ion in the
series of double
perovskite Ca2LnSbO6 (Ln = La, Gd, Y, and Lu)
hosts shows a different occupation of the available A and B crystal
sites; this strongly affects the luminescence behavior in the visible
spectral region.
Collapse
Affiliation(s)
- Fabio Piccinelli
- Luminescent Materials Laboratory, Department of Biotechnology, Università di Verona and INSTM, UdR Verona, Strada Le Grazie 15, Verona 37134, Italy
| | - Irene Carrasco
- Département Microélectronique & Microcapteurs, Université de Rennes, CNRS, ISCR-UMR 6226, ScanMAT-UMS 2001, IETR-UMR 6164, Rennes F-35000, France
| | - Chong-Geng Ma
- CQUPT-BUL Innovation Institute, Chongqing University of Posts and Telecommunications, Chongqing 400065, P.R. China
| | - Marco Bettinelli
- Luminescent Materials Laboratory, Department of Biotechnology, Università di Verona and INSTM, UdR Verona, Strada Le Grazie 15, Verona 37134, Italy
| |
Collapse
|
5
|
Bandiello E, Popescu C, da Silva EL, Sans JÁ, Errandonea D, Bettinelli M. PrVO 4 under High Pressure: Effects on Structural, Optical, and Electrical Properties. Inorg Chem 2020; 59:18325-18337. [PMID: 33291884 DOI: 10.1021/acs.inorgchem.0c02933] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
In the pursuit of a systematic characterization of rare-earth vanadates under compression, in this work we present a multifaceted study of the phase behavior of zircon-type orthovanadate PrVO4 under high-pressure conditions, up to 24 GPa. We have found that PrVO4 undergoes a zircon to monazite transition at around 6 GPa, confirming previous results found by Raman experiments. A second transition takes place above 14 GPa, to a BaWO4-II type structure. The zircon to monazite structural sequence is an irreversible first-order transition, accompanied by a volume collapse of about 9.6%. The monazite phase is thus a metastable polymorph of PrVO4. The monazite-BaWO4-II transition is found instead to be reversible and occurs with a similar volume change. Here we report and discuss the axial and bulk compressibility of all phases. We also compare our results with those for other rare-earth orthovanadates. Finally, by means of optical-absorption experiments and resistivity measurements, we determined the effect of pressure on the electronic properties of PrVO4. We found that the zircon-monazite transition produces a collapse of the band gap and an abrupt decrease in the resistivity. The physical reasons for this behavior are discussed. Density functional theory simulations support our conclusions.
Collapse
Affiliation(s)
- Enrico Bandiello
- Departamento de Física Aplicada-ICMUV, MALTA Consolider Team, Universidad de Valencia, Edificio de Investigación, C/Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - Catalin Popescu
- CELLS-ALBA Synchrotron Light Facility, Cerdanyola del Valles, 08290 Barcelona, Spain
| | - Estelina Lora da Silva
- IFIMUP, Departamento de Física e Astronomia, Faculdade de Ciencias da Universidade do Porto, Porto, Portugal.,Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA Consolider Team, Universitat Politècnica de València, 46022 València, Spain
| | - Juan Ángel Sans
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA Consolider Team, Universitat Politècnica de València, 46022 València, Spain
| | - Daniel Errandonea
- Departamento de Física Aplicada-ICMUV, MALTA Consolider Team, Universidad de Valencia, Edificio de Investigación, C/Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - Marco Bettinelli
- Luminescent Materials Laboratory, Department of Biotechnology, University of Verona and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| |
Collapse
|
6
|
Gao C, Han Y, Zhang K, Wei T, Jiang Z, Wei Y, Yin L, Piccinelli F, Yao C, Xie X, Bettinelli M, Huang L. Templated-Construction of Hollow MoS 2 Architectures with Improved Photoresponses. Adv Sci (Weinh) 2020; 7:2002444. [PMID: 33240779 PMCID: PMC7675057 DOI: 10.1002/advs.202002444] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/02/2020] [Indexed: 05/25/2023]
Abstract
Despite the outstanding optoelectronic properties of MoS2 and its analogues, synthesis of such materials with desired features including fewer layers, arbitrary hollow structures, and particularly specifically customized morphologies, via inorganic reactions has always been challenging. Herein, using predesigned lanthanide-doped upconversion luminescent materials (e.g., NaYF4:Ln) as templates, arbitrary MoS2 hollow structures with precisely defined morphologies, widely variable dimensions, and very small shell thickness (≈2.5 nm) are readily constructed. Most importantly, integration of the near-infrared-responsive template significantly improves the photoresponse of up to 600 fold in device made of NaYF4:Yb/Er@MoS2 compared with that of MoS2 nanosheets under 980 nm laser illumination. Multichannel optoelectronic device is further fabricated by simply changing luminescent ions in the template, e.g., NaYF4:Er@MoS2, operating at 1532 nm light excitation with a 276-fold photoresponse enhancement. The simple chemistry, easy operation, high reliability, variable morphologies, and wide universality represent the most important advantages of this novel strategy that has not been accessed before.
Collapse
Affiliation(s)
- Chao Gao
- Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University30 South Puzhu RoadNanjing211816China
- School of Inspection and Testing CertificationChangzhou Vocational Institute of EngineeringChangzhou213164China
| | - Yingdong Han
- School of Precision Instruments and Optoelectronics EngineeringTianjin UniversityTianjin300072China
| | - Kun Zhang
- Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University30 South Puzhu RoadNanjing211816China
| | - Tian Wei
- Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University30 South Puzhu RoadNanjing211816China
| | - Zhang Jiang
- Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University30 South Puzhu RoadNanjing211816China
| | - Yang Wei
- Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University30 South Puzhu RoadNanjing211816China
| | - Lisha Yin
- Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University30 South Puzhu RoadNanjing211816China
| | - Fabio Piccinelli
- Luminescent Materials LaboratoryDepartment of BiotechnologyUniversity of VeronaVerona37134Italy
| | - Cheng Yao
- School of Chemistry and Molecular EngineeringNanjing Tech University30 South Puzhu RoadNanjing211816China
| | - Xiaoji Xie
- Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University30 South Puzhu RoadNanjing211816China
| | - Marco Bettinelli
- Luminescent Materials LaboratoryDepartment of BiotechnologyUniversity of VeronaVerona37134Italy
| | - Ling Huang
- Institute of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University30 South Puzhu RoadNanjing211816China
| |
Collapse
|
7
|
Ascenzi P, Bettinelli M, Boffi A, Botta M, De Simone G, Luchinat C, Marengo E, Mei H, Aime S. Rare earth elements (REE) in biology and medicine. Rend Fis Acc Lincei 2020. [DOI: 10.1007/s12210-020-00930-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
AbstractThis survey reports on topics that were presented at the workshop on “Challenges with Rare Earth Elements. The Periodic Table at work for new Science & Technology” hold at the Academia dei Lincei in November 2019. The herein reported materials refer to presentations dealing with studies and applications of rare earth elements (REE) in several areas of Biology and Medicine. All together they show the tremendous impact REE have in relevant fields of living systems and highlight, on one hand, the still existing knowledge gap for an in-depth understanding of their function in natural systems as well as the very important role they already have in providing innovative scientific and technological solutions in a number of bio-medical areas and in fields related to the assessment of the origin of food and on their manufacturing processes. On the basis of the to-date achievements one expects that new initiatives will bring, in a not too far future, to a dramatic increase of our understanding of the REE involvement in living organisms as well as a ramp-up in the exploitation of the peculiar properties of REE for the design of novel applications in diagnostic procedures and in the set-up of powerful medical devices. This scenario calls the governmental authorities for new responsibilities to guarantee a continuous availability of REE to industry and research labs together with providing support to activities devoted to their recovery/recycling.
Collapse
|
8
|
Piccinelli F, Bettinelli M, Cano J, Lloret F, Julve M, Dolmella A. Magnetic Properties of a New Hexahalorhenate(IV) Compound and Structural Comparison with Its Hexahaloplatinate(IV) Analog. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Fabio Piccinelli
- Luminescent Materials Laboratory, DB Università di Verona, and INSTM, UdR Verona Strada Le Grazie 15 37134 Verona Italy
| | - Marco Bettinelli
- Luminescent Materials Laboratory, DB Università di Verona, and INSTM, UdR Verona Strada Le Grazie 15 37134 Verona Italy
| | - Joan Cano
- Instituto de Ciencia Molecular (ICMol)/Departament de Química Inorgànica Universitat de València C/ Catedrátco José Beltrán 2 46980 Paterna València Spain
| | - Francesc Lloret
- Instituto de Ciencia Molecular (ICMol)/Departament de Química Inorgànica Universitat de València C/ Catedrátco José Beltrán 2 46980 Paterna València Spain
| | - Miguel Julve
- Instituto de Ciencia Molecular (ICMol)/Departament de Química Inorgànica Universitat de València C/ Catedrátco José Beltrán 2 46980 Paterna València Spain
| | - Alessandro Dolmella
- Department of Pharmaceutical and Pharmacological Sciences University of Padova via F. Marzolo 5 35131 Padova Italy
| |
Collapse
|
9
|
Gonzalez-Platas J, Lopez-Moreno S, Bandiello E, Bettinelli M, Errandonea D. Precise Characterization of the Rich Structural Landscape Induced by Pressure in Multifunctional FeVO 4. Inorg Chem 2020; 59:6623-6630. [PMID: 32302127 DOI: 10.1021/acs.inorgchem.0c00772] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We have studied the high-pressure behavior of FeVO4 by means of single-crystal X-ray diffraction (XRD) and density functional theory (DFT) calculations. We have found that the structural sequence of FeVO4 is different from that previously assumed. In particular, we have discovered a new high-pressure phase at 2.11(4) GPa (FeVO4-I'), which was not detected by previous powder XRD studies. We have determined that FeVO4, under compression (at room temperature), first transforms at 2.11(4) GPa from the ambient-pressure triclinic structure (FeVO4-I) to a second previously unknown triclinic structure (FeVO4-I'), which experiences a subsequent phase transition at 4.80(4) GPa to a monoclinic structure (FeVO4-II'), which was also previously detected in powder XRD experiments. Single-crystal XRD has enabled these novel findings as well as an accurate determination of the crystal structure of FeVO4 polymorphs under high-pressure conditions. The crystal structure of all polymorphs has been accurately solved at all measured pressures. The pressure dependence of the unit-cell parameters and polyhedral coordination have been obtained and are discussed. The room-temperature equation of state and the principal axes of the isothermal compressibility tensor of FeVO4-I and FeVO4-I' have also been determined. The structural phase transition observed here between these two triclinic structures at 2.11(4) GPa implies abrupt coordination polyhedra modifications, including coordination number changes. DFT calculations support the conclusions extracted from our experiments.
Collapse
Affiliation(s)
- Javier Gonzalez-Platas
- Departamento de Física, Instituto Universitario de Estudios Avanzados en Física Atómica, Molecular y Fotónica (IUDEA), and MALTA Consolider Team, Universidad de La Laguna, Avenida Astrofísico Fco. Sánchez s/n, La Laguna, Tenerife E-38206, Spain
| | - Sinhue Lopez-Moreno
- CONACYT, Division de Materiales Avanzados, Instituto Potosino de Investigación Cientı́fica y Tecnológica (IPICYT), Camino a la presa San Josë 20155, San Luis Potosí, San Luis Potosí 78216, Mexico
| | - Enrico Bandiello
- Departamento de Física Aplicada, Institut de Ciència dels Materials, MALTA Consolider Team, Universidad de Valencia, Edificio de Investigacion, C/Dr. Moliner 50, Burjassot, Valencia 46100, Spain
| | - Marco Bettinelli
- Luminescent Materials Laboratory, Department of Biotechnology, University of Verona and INSTM, UdR Verona, Strada Le Grazie 15, Verona, Verona 37134, Italy
| | - Daniel Errandonea
- Departamento de Física Aplicada, Institut de Ciència dels Materials, MALTA Consolider Team, Universidad de Valencia, Edificio de Investigacion, C/Dr. Moliner 50, Burjassot, Valencia 46100, Spain
| |
Collapse
|
10
|
Piccinelli F, Paterlini V, Monari M, Bettinelli M. Sensitivity of a solid Eu(III) complex towards acetonitrile vapor: Structural and spectroscopic characterization. J RARE EARTH 2020. [DOI: 10.1016/j.jre.2020.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
11
|
Bandiello E, Errandonea D, González-Platas J, Rodríguez-Hernández P, Muñoz A, Bettinelli M, Popescu C. Phase Behavior of TmVO 4 under Hydrostatic Compression: An Experimental and Theoretical Study. Inorg Chem 2020; 59:4882-4894. [PMID: 32191461 DOI: 10.1021/acs.inorgchem.0c00147] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We present a structural and optical characterization of magnetoelastic zircon-type TmVO4 at ambient pressure and under high pressure. The properties under high pressure have been determined experimentally under hydrostatic conditions and theoretically using density functional theory. By powder X-ray diffraction we show that TmVO4 undergoes a first-order irreversible phase transition to a scheelite structure above 6 GPa. We have also determined (from powder and single-crystal X-ray diffraction) the bulk moduli of both phases and found that their compressibilities are anisotropic. The band gap of TmVO4 is found to be Eg = 3.7(2) eV. Under compression the band gap opens linearly, until it undergoes a huge collapse following the structural phase transition (ΔEg = 1.15 eV). Ab initio structural and free energy calculations support our findings. Moreover, calculations of the band structure and density of states reveal that for both zircon and scheelite TmVO4 the band gap is entirely determined by the V 3d and O 2p states of the VO43- ion. The behavior of the band gap can thus be understood entirely in terms of the structural modifications of the VO4 units under compression. Additionally, we have calculated the evolution of the infrared and Raman phonons of both phases upon compression. The presence of soft modes is related to the dynamic instability of the low-pressure phase and to the phase transition.
Collapse
Affiliation(s)
- Enrico Bandiello
- Departamento de Física Aplicada-ICMUV, MALTA Consolider Team, Universidad de Valencia, Edificio de Investigación, C/Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - Daniel Errandonea
- Departamento de Física Aplicada-ICMUV, MALTA Consolider Team, Universidad de Valencia, Edificio de Investigación, C/Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | - Javier González-Platas
- Departamento de Física, Instituto Universitario de Estudios Avanzados en Física Atómica, Molecular y Fotónica (IUDEA), MALTA Consolider Team, Universidad de La Laguna, La Laguna, E-38204 Tenerife, Spain
| | - Plácida Rodríguez-Hernández
- Departamento de Física, Instituto de Materiales y Nanotecnología, MALTA Consolider Team, Universidad de La Laguna, La Laguna, E-38204 Tenerife, Spain
| | - Alfonso Muñoz
- Departamento de Física, Instituto de Materiales y Nanotecnología, MALTA Consolider Team, Universidad de La Laguna, La Laguna, E-38204 Tenerife, Spain
| | - Marco Bettinelli
- Luminescent Materials Laboratory, Department of Biotechnology, University of Verona and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Catalin Popescu
- CELLS-ALBA Synchrotron Light Facility, Cerdanyola del Valles, 08290 Barcelona, Spain
| |
Collapse
|
12
|
Piccinelli F, Rosa CD, Lazarowska A, Mahlik S, Grinberg M, Nakanishi T, Omagari S, Bettinelli M. Optical properties of Eu(III) and Tb(III) complexes with pyridine- and quinoline- based ligands under high hydrostatic pressure. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
13
|
Marqueño T, Monteseguro V, Cova F, Errandonea D, Santamaria-Perez D, Bandiello E, Bettinelli M. High-pressure phase transformations in NdVO 4 under hydrostatic, conditions: a structural powder x-ray diffraction study. J Phys Condens Matter 2019; 31:235401. [PMID: 30844773 DOI: 10.1088/1361-648x/ab0dc2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Room temperature angle dispersive powder x-ray diffraction experiments on zircon-type NdVO4 were performed for the first time under quasi-hydrostatic conditions up to 24.5 GPa. The sample undergoes two phase transitions at 6.4 and 19.9 GPa. Our results show that the first transition is a zircon-to-scheelite-type phase transition, which has not been reported before, and contradicts previous non-hydrostatic experiments. In the second transition, NdVO4 transforms into a fergusonite-type structure, which is a monoclinic distortion of scheelite-type. The compressibility and axial anisotropy of the different polymorphs of NdVO4 are reported. A direct comparison of our results with former experimental and theoretical studies on other rare-earth orthovanadates found in literature highlights the importance of the role played by non-hydrostatic stresses in their high-pressure structural behavior.
Collapse
Affiliation(s)
- T Marqueño
- Departament de Física Aplicada-ICMUV, Universitat de València, Dr. Moliner 50, 46100 Burjassot, Spain
| | | | | | | | | | | | | |
Collapse
|
14
|
|
15
|
Piccinelli F, De Rosa C, Melchior A, Faura G, Tolazzi M, Bettinelli M. Eu(iii) and Tb(iii) complexes of 6-fold coordinating ligands showing high affinity for the hydrogen carbonate ion: a spectroscopic and thermodynamic study. Dalton Trans 2019; 48:1202-1216. [PMID: 30460363 DOI: 10.1039/c8dt03621g] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
In the present contribution, four classes of Ln(iii) complexes (Ln = Eu and Tb) have been synthesized and characterized in aqueous solution. They differ by charge, Ln(bpcd)+ [bpcd2- = N,N'-bis(2-pyridylmethyl)-trans-1,2-diaminocyclohexane N,N'-diacetate] and Ln(bQcd)+ (bQcd2- = N,N'-bis(2-quinolinmethyl)-trans-1,2-diaminocyclohexane N,N'-diacetate) being positively charged and Ln(PyC3A) (PyC3A3- = N-picolyl-N,N',N'-trans-l,2-cyclohexylenediaminetriacetate) and Ln(QC3A) (QC3A3- = N-quinolyl-N,N',N'-trans-l,2-cyclohexylenediaminetriacetate) being neutral. Combined DFT, spectrophotometric and potentiometric studies reveal the presence, under physiological conditions (pH 7.4), of a couple of equally and highly stable isomers differing by the stereochemistry of the ligands (trans-N,N and trans-O,O for bpcd2- and bQcd2-; trans-O,O and trans-N,O for PyC3A3- and QC3A3-). Their high log β values (9.97 < log β < 15.68), the presence of an efficient antenna effect and the strong increase of the Ln(iii) luminescence intensity as a function of the hydrogen carbonate concentration in physiological solution, render these complexes as very promising optical probes for a selective detection of HCO3-in cellulo or in extracellular fluid. This particularly applies to the cationic Eu(bpcd)+, Tb(bpcd)+ and Eu(bQcd)+ complexes, which are capable of guesting up to two hydrogen carbonate anions in the inner coordination sphere of the metal ion, so that they show an unprecedented affinity towards HCO3- (log K for the formation of the adduct in the 4.6-5.9 range).
Collapse
Affiliation(s)
- Fabio Piccinelli
- Laboratorio Materiali Luminescenti, DB, Università di Verona, and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy.
| | | | | | | | | | | |
Collapse
|
16
|
Ruiz-Fuertes J, Martínez-García D, Marqueño T, Errandonea D, MacLeod SG, Bernert T, Haussühl E, Santamaría-Pérez D, Ibáñez J, Mallavarapu A, Achary SN, Popescu C, Bettinelli M. High-Pressure High-Temperature Stability and Thermal Equation of State of Zircon-Type Erbium Vanadate. Inorg Chem 2018; 57:14005-14012. [PMID: 30370764 DOI: 10.1021/acs.inorgchem.8b01808] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The zircon to scheelite phase boundary of ErVO4 has been studied by high-pressure and high-temperature powder and single-crystal X-ray diffraction. This study has allowed us to delimit the best synthesis conditions of its scheelite-type phase, determine the ambient-temperature equation of state of the zircon and scheelite-type structures, and obtain the thermal equation of state of the zircon-type polymorph. The results obtained with powder samples indicate that zircon-type ErVO4 transforms to scheelite at 8.2 GPa and 293 K and at 7.5 GPa and 693 K. The analyses yield bulk moduli K0 of 158(13) GPa for the zircon phase and 158(17) GPa for the scheelite phase, with a temperature derivative of d K0/d T = -[3.8(2)] × 10-3 GPa K-1 and a volumetric thermal expansion of α0 = [0.9(2)] × 10-5 K-1 for the zircon phase according to the Berman model. The results are compared with those of other zircon-type vanadates, raising the need for careful experiments with highly crystalline scheelite to obtain reliable bulk moduli of this phase. Finally, we have performed single-crystal diffraction experiments from 110 to 395 K, and the obtained volumetric thermal expansion (α0) for zircon-type ErVO4 in the 300-395 K range is [1.4(2)] × 10-5 K-1, in good agreement with previous data and with our experimental value given from the thermal equation of state fit within the limits of uncertainty.
Collapse
Affiliation(s)
- Javier Ruiz-Fuertes
- DCITIMAC , Universidad de Cantabria , Avenida Los Castros 48 , 39005 Santander , Spain
| | - Domingo Martínez-García
- Departament de Física Aplicada , Universitat de València , Dr. Moliner 50 , 46100 Burjassot , Spain
| | - Tomás Marqueño
- Departament de Física Aplicada , Universitat de València , Dr. Moliner 50 , 46100 Burjassot , Spain
| | - Daniel Errandonea
- Departament de Física Aplicada , Universitat de València , Dr. Moliner 50 , 46100 Burjassot , Spain
| | - Simon G MacLeod
- Atomic Weapons Establishment , Aldermaston, Reading RG7 4PR , United Kingdom.,SUPA, School of Physics & Astronomy, and Centre for Science at Extreme Conditions , The University of Edinburgh , Edinburgh EH9 3FD , United Kingdom
| | - Thomas Bernert
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1 , 45470 Mülheim an der Ruhr , Germany
| | - Eiken Haussühl
- Institut für Geowissenshaften , Goethe-Universität Frankfurt , Altenhöferallee 1 , 60438 Frankfurt am Main , Germany
| | - David Santamaría-Pérez
- Departament de Física Aplicada , Universitat de València , Dr. Moliner 50 , 46100 Burjassot , Spain
| | - Jordi Ibáñez
- Institute of Earth Sciences Jaume Almera, CSIC , 08028 Barcelona , Spain
| | - Anitha Mallavarapu
- Material Processing & Corrosion Engineering Division , Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India
| | - S Nagabhusan Achary
- Chemistry Division , Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India
| | - Catalin Popescu
- CELLS-ALBA Synchrotron Light Facility , Cerdanyola del Vallés , 08290 Barcelona , Spain
| | - Marco Bettinelli
- Laboratorio Materiali Luminescenti, DB , Università di Verona, and INSTM, UdR Verona , 37134 Verona , Italy
| |
Collapse
|
17
|
Chen Q, Wu J, Ou X, Huang B, Almutlaq J, Zhumekenov AA, Guan X, Han S, Liang L, Yi Z, Li J, Xie X, Wang Y, Li Y, Fan D, Teh DBL, All AH, Mohammed OF, Bakr OM, Wu T, Bettinelli M, Yang H, Huang W, Liu X. All-inorganic perovskite nanocrystal scintillators. Nature 2018; 561:88-93. [DOI: 10.1038/s41586-018-0451-1] [Citation(s) in RCA: 818] [Impact Index Per Article: 136.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 06/21/2018] [Indexed: 11/09/2022]
|
18
|
Leonzio M, Bettinelli M, Arrico L, Monari M, Di Bari L, Piccinelli F. Circularly Polarized Luminescence from an Eu(III) Complex Based on 2-Thenoyltrifluoroacetyl-acetonate and a Tetradentate Chiral Ligand. Inorg Chem 2018; 57:10257-10264. [DOI: 10.1021/acs.inorgchem.8b01480] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Marco Leonzio
- Laboratorio Materiali Luminescenti, DB, Università di Verona and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Marco Bettinelli
- Laboratorio Materiali Luminescenti, DB, Università di Verona and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale, via Moruzzi 13, 56124 Pisa, Italy
| | - Magda Monari
- Dipartimento di Chimica ‘‘G. Ciamician’’, Università di Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale, via Moruzzi 13, 56124 Pisa, Italy
| | - Fabio Piccinelli
- Laboratorio Materiali Luminescenti, DB, Università di Verona and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| |
Collapse
|
19
|
Piccinelli F, Carrasco I, Ma CG, Srivastava AM, Bettinelli M. Disorder-Induced Breaking of the Local Inversion Symmetry in Rhombohedral Pyrochlores M2La3Sb3O14 (M = Mg or Ca): A Structural and Spectroscopic Investigation. Inorg Chem 2018; 57:9241-9250. [DOI: 10.1021/acs.inorgchem.8b01261] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fabio Piccinelli
- Luminescent Materials Laboratory, DB and INSTM, UdR Verona, Università di Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Irene Carrasco
- Advanced Technology Institute, Department of Electrical and Electronic Engineering, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - Chong-Geng Ma
- Luminescent Materials Laboratory, DB and INSTM, UdR Verona, Università di Verona, Strada Le Grazie 15, 37134 Verona, Italy
- College of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, PR China
| | - Alok M. Srivastava
- GE Global Research, One Research Circle, Niskayuna, New York 12309, United States
| | - Marco Bettinelli
- Luminescent Materials Laboratory, DB and INSTM, UdR Verona, Università di Verona, Strada Le Grazie 15, 37134 Verona, Italy
| |
Collapse
|
20
|
Hakeem MA, Jackson DE, Hamlin JJ, Errandonea D, Proctor JE, Bettinelli M. High Pressure Raman, Optical Absorption, and Resistivity Study of SrCrO4. Inorg Chem 2018; 57:7550-7557. [DOI: 10.1021/acs.inorgchem.8b00268] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Malik A. Hakeem
- School of Computing, Science and Engineering, University of Salford, Manchester M5 4WT, United Kingdom
| | - Daniel E. Jackson
- Department of Physics, University of Florida, Gainesville, Florida 32611, United States
| | - James J. Hamlin
- Department of Physics, University of Florida, Gainesville, Florida 32611, United States
| | - Daniel Errandonea
- Departamento de Física Aplicada-ICMUV, MALTA Consolider Team, Universidad de Valencia, Edificio de Investigación, C/Dr. Moliner 50, Burjassot 46100, Valencia, Spain
| | - John E. Proctor
- School of Computing, Science and Engineering, University of Salford, Manchester M5 4WT, United Kingdom
- Photon Science Institute and School of Electrical & Electronic Engineering, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Marco Bettinelli
- Luminescent Materials Lab, Deptartment of Biotechnology, University Verona and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| |
Collapse
|
21
|
Errandonea D, Gomis O, Rodríguez-Hernández P, Muñoz A, Ruiz-Fuertes J, Gupta M, Achary SN, Hirsch A, Manjon FJ, Peters L, Roth G, Tyagi AK, Bettinelli M. High-pressure structural and vibrational properties of monazite-type BiPO 4, LaPO 4, CePO 4, and PrPO 4. J Phys Condens Matter 2018; 30:065401. [PMID: 29337696 DOI: 10.1088/1361-648x/aaa20d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Monazite-type BiPO4, LaPO4, CePO4, and PrPO4 have been studied under high pressure by ab initio simulations and Raman spectroscopy measurements in the pressure range of stability of the monazite structure. A good agreement between experimental and theoretical Raman-active mode frequencies and pressure coefficients has been found which has allowed us to discuss the nature of the Raman-active modes. Besides, calculations have provided us with information on how the crystal structure is modified by pressure. This information has allowed us to determine the equation of state and the isothermal compressibility tensor of the four studied compounds. In addition, the information obtained on the polyhedral compressibility has been used to explain the anisotropic axial compressibility and the bulk compressibility of monazite phosphates. Finally, we have carried out a systematic discussion on the high-pressure behavior of the four studied phosphates in comparison to results of previous studies.
Collapse
Affiliation(s)
- D Errandonea
- Departamento de Física Aplicada-ICMUV, MALTA Consolider Team, Universitat de València, Edificio de Investigación, C/Dr. Moliner 50, Burjassot, 46100 Valencia, Spain
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Leonzio M, Melchior A, Faura G, Tolazzi M, Bettinelli M, Zinna F, Arrico L, Di Bari L, Piccinelli F. A chiral lactate reporter based on total and circularly polarized Tb(iii) luminescence. NEW J CHEM 2018. [DOI: 10.1039/c7nj04640e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Lactate anion signaling by a chiral Tb(iii) complex based on total and circularly polarized luminescence.
Collapse
Affiliation(s)
- Marco Leonzio
- Luminescent Materials Laboratory
- DB
- Università di Verona, and INSTM
- UdR Verona
- 37134 Verona
| | - Andrea Melchior
- Dipartimento Politecnico di Ingegneria e Architettura
- Laboratorio di Tecnologie Chimiche
- Università di Udine
- 33100 Udine
- Italy
| | - Georgina Faura
- Dipartimento Politecnico di Ingegneria e Architettura
- Laboratorio di Tecnologie Chimiche
- Università di Udine
- 33100 Udine
- Italy
| | - Marilena Tolazzi
- Dipartimento Politecnico di Ingegneria e Architettura
- Laboratorio di Tecnologie Chimiche
- Università di Udine
- 33100 Udine
- Italy
| | - Marco Bettinelli
- Luminescent Materials Laboratory
- DB
- Università di Verona, and INSTM
- UdR Verona
- 37134 Verona
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale
- 56124 Pisa
- Italy
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale
- 56124 Pisa
- Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale
- 56124 Pisa
- Italy
| | - Fabio Piccinelli
- Luminescent Materials Laboratory
- DB
- Università di Verona, and INSTM
- UdR Verona
- 37134 Verona
| |
Collapse
|
23
|
Muñoz-Santiuste JE, Lavín V, Rodríguez-Mendoza UR, Ferrer-Roca C, Errandonea D, Martínez-García D, Rodríguez-Hernández P, Muñoz A, Bettinelli M. Experimental and theoretical study on the optical properties of LaVO4 crystals under pressure. Phys Chem Chem Phys 2018; 20:27314-27328. [PMID: 30357167 DOI: 10.1039/c8cp04701d] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report optical absorption and luminescence measurements in pure and trivalent neodymium (Nd3+) doped LaVO4 crystals up to 25 GPa. We also present the theoretical framework to accurately explain the observed experimental results.
Collapse
Affiliation(s)
- J. E. Muñoz-Santiuste
- Departamento de Física, and MALTA Consolider Team
- Escuela Politécnica Superior
- Universidad Carlos III de Madrid
- Avenida de la Universidad 30
- E-28913 Leganés
| | - V. Lavín
- Departamento de Física
- MALTA Consolider Team
- IMN and IUdEA
- Universidad de La Laguna. Apdo. 456
- E-38200 San Cristóbal de La Laguna
| | - U. R. Rodríguez-Mendoza
- Departamento de Física
- MALTA Consolider Team
- IMN and IUdEA
- Universidad de La Laguna. Apdo. 456
- E-38200 San Cristóbal de La Laguna
| | - Ch. Ferrer-Roca
- Departamento de Física Aplicada-ICMUV
- MALTA Consolider Team
- Universidad de Valencia
- Edificio de Investigación
- C/Dr Moliner 50
| | - D. Errandonea
- Departamento de Física Aplicada-ICMUV
- MALTA Consolider Team
- Universidad de Valencia
- Edificio de Investigación
- C/Dr Moliner 50
| | - D. Martínez-García
- Departamento de Física Aplicada-ICMUV
- MALTA Consolider Team
- Universidad de Valencia
- Edificio de Investigación
- C/Dr Moliner 50
| | - P. Rodríguez-Hernández
- Departamento de Física
- MALTA Consolider Team, and Instituto de Nanomateriales y Nanotecnología
- Universidad de La Laguna. Apdo. 456
- E-38200 San Cristóbal de La Laguna
- Spain
| | - A. Muñoz
- Departamento de Física
- MALTA Consolider Team, and Instituto de Nanomateriales y Nanotecnología
- Universidad de La Laguna. Apdo. 456
- E-38200 San Cristóbal de La Laguna
- Spain
| | - M. Bettinelli
- Laboratori Materiali Luminescenti, DB, and INSTM
- Università di Verona
- 37134 Verona
- Italy
| |
Collapse
|
24
|
Zhong T, Kindem JM, Bartholomew JG, Rochman J, Craiciu I, Miyazono E, Bettinelli M, Cavalli E, Verma V, Nam SW, Marsili F, Shaw MD, Beyer AD, Faraon A. Nanophotonic rare-earth quantum memory with optically controlled retrieval. Science 2017; 357:1392-1395. [PMID: 28860208 DOI: 10.1126/science.aan5959] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 08/23/2017] [Indexed: 01/24/2023]
Abstract
Optical quantum memories are essential elements in quantum networks for long-distance distribution of quantum entanglement. Scalable development of quantum network nodes requires on-chip qubit storage functionality with control of the readout time. We demonstrate a high-fidelity nanophotonic quantum memory based on a mesoscopic neodymium ensemble coupled to a photonic crystal cavity. The nanocavity enables >95% spin polarization for efficient initialization of the atomic frequency comb memory and time bin-selective readout through an enhanced optical Stark shift of the comb frequencies. Our solid-state memory is integrable with other chip-scale photon source and detector devices for multiplexed quantum and classical information processing at the network nodes.
Collapse
Affiliation(s)
- Tian Zhong
- T. J. Watson Laboratory of Applied Physics, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA
| | - Jonathan M Kindem
- T. J. Watson Laboratory of Applied Physics, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA
| | - John G Bartholomew
- T. J. Watson Laboratory of Applied Physics, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA
| | - Jake Rochman
- T. J. Watson Laboratory of Applied Physics, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA
| | - Ioana Craiciu
- T. J. Watson Laboratory of Applied Physics, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA
| | - Evan Miyazono
- T. J. Watson Laboratory of Applied Physics, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA
| | - Marco Bettinelli
- Laboratorio Materiali Luminescenti, Università degli Studi di Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Enrico Cavalli
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilita Ambientale, Università degli Studi di Parma, Parco Area delle Scienze 17/a, 43124 Parma, Italy
| | - Varun Verma
- National Institute of Standards and Technology, 325 Broadway, MC 815.04, Boulder, CO 80305, USA
| | - Sae Woo Nam
- National Institute of Standards and Technology, 325 Broadway, MC 815.04, Boulder, CO 80305, USA
| | - Francesco Marsili
- Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA
| | - Matthew D Shaw
- Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA
| | - Andrew D Beyer
- Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA
| | - Andrei Faraon
- T. J. Watson Laboratory of Applied Physics, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA.
| |
Collapse
|
25
|
Gomis O, Lavina B, Rodríguez-Hernández P, Muñoz A, Errandonea R, Errandonea D, Bettinelli M. High-pressure structural, elastic, and thermodynamic properties of zircon-type HoPO 4 and TmPO 4. J Phys Condens Matter 2017; 29:095401. [PMID: 28106012 DOI: 10.1088/1361-648x/aa516a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Zircon-type holmium phosphate (HoPO4) and thulium phosphate (TmPO4) have been studied by single-crystal x-ray diffraction and ab initio calculations. We report on the influence of pressure on the crystal structure, and on the elastic and thermodynamic properties. The equation of state for both compounds is accurately determined. We have also obtained information on the polyhedral compressibility which is used to explain the anisotropic axial compressibility and the bulk compressibility. Both compounds are ductile and more resistive to volume compression than to shear deformation at all pressures. Furthermore, the elastic anisotropy is enhanced upon compression. Finally, the calculations indicate that the possible causes that make the zircon structure unstable are mechanical instabilities and the softening of a silent B 1u mode.
Collapse
Affiliation(s)
- O Gomis
- Centro de Tecnologías Físicas, MALTA Consolider Team, Universitat Politècnica de València, 46022 Valencia, Spain
| | | | | | | | | | | | | |
Collapse
|
26
|
Qin X, Liu X, Huang W, Bettinelli M, Liu X. Lanthanide-Activated Phosphors Based on 4f-5d Optical Transitions: Theoretical and Experimental Aspects. Chem Rev 2017; 117:4488-4527. [DOI: 10.1021/acs.chemrev.6b00691] [Citation(s) in RCA: 543] [Impact Index Per Article: 77.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xian Qin
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Xiaowang Liu
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Wei Huang
- Key
Laboratory of Flexible Electronics and Institute of Advanced Materials,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210023, P. R. China
| | - Marco Bettinelli
- Luminescent
Materials Laboratory, DB, University of Verona, Strada Le Grazie
15, I-37134 Verona, Italy
| | - Xiaogang Liu
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- Center
for Functional Materials, NUS Suzhou Research Institute, Suzhou, Jiangsu 215123, P. R. China
| |
Collapse
|
27
|
Malkin B, Baibekov E, Abishev N, Pytalev D, Popova M, Bettinelli M. Optical spectroscopy of random deformations in elastically-anisotropic crystals containing rare-earth ions. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201713202016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
28
|
Piccinelli F, Leonzio M, Bettinelli M, Melchior A, Faura G, Tolazzi M. Luminescent Eu3+ complexes in acetonitrile solution: Anion sensing and effect of water on the speciation. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.09.047] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
29
|
Mihorianu M, Leonzio M, Monari M, Ravotto L, Ceroni P, Bettinelli M, Piccinelli F. Structural and Spectroscopic Properties of New Chiral Quinoline-based Ln(III) Complexes. ChemistrySelect 2016. [DOI: 10.1002/slct.201600641] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Monica Mihorianu
- Department of Biotechnology,Luminescent Materials Laboratory; University of Verona and INSTM, UdR Verona; Strada Le Grazie 15 37134 Verona Italy
| | - Marco Leonzio
- Department of Biotechnology,Luminescent Materials Laboratory; University of Verona and INSTM, UdR Verona; Strada Le Grazie 15 37134 Verona Italy
| | - Magda Monari
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Luca Ravotto
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Paola Ceroni
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Marco Bettinelli
- Department of Biotechnology,Luminescent Materials Laboratory; University of Verona and INSTM, UdR Verona; Strada Le Grazie 15 37134 Verona Italy
- INSTM; UdR Verona; Strada Le Grazie 15 37134 Verona Italy
| | - Fabio Piccinelli
- Department of Biotechnology,Luminescent Materials Laboratory; University of Verona and INSTM, UdR Verona; Strada Le Grazie 15 37134 Verona Italy
- INSTM; UdR Verona; Strada Le Grazie 15 37134 Verona Italy
| |
Collapse
|
30
|
Abstract
Successive energy transfer processes Eu2+–Eu3+(Tb3+) and Tb3+–Eu3+ appear to occur in Ba2Tb2−ySi4O13:yEu (y = 0–0.12) solid-solution phosphors.
Collapse
Affiliation(s)
- Jun Zhou
- The Beijing Municipal Key Laboratory of New Energy Materials and Technologies
- School of Materials Sciences and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Zhiguo Xia
- The Beijing Municipal Key Laboratory of New Energy Materials and Technologies
- School of Materials Sciences and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Marco Bettinelli
- Luminescent Materials Laboratory
- DB, Univ. Verona, and INSTM
- 37134 Verona
- Italy
| | - Quanlin Liu
- The Beijing Municipal Key Laboratory of New Energy Materials and Technologies
- School of Materials Sciences and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
| |
Collapse
|
31
|
Piccinelli F, Leonzio M, Bettinelli M, Monari M, Grazioli C, Melchior A, Tolazzi M. Tuning of the sensing properties of luminescent Eu3+ complexes towards the nitrate anion. Dalton Trans 2016; 45:3310-8. [DOI: 10.1039/c5dt04665c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The dependence of the luminescence sensing towards nitrate on the ligand donor ability, ligand stereochemistry, complex stoichiometry and concentration is shown.
Collapse
Affiliation(s)
- Fabio Piccinelli
- Luminescent Materials Laboratory
- DB
- Università di Verona
- and INSTM
- UdR Verona
| | - Marco Leonzio
- Luminescent Materials Laboratory
- DB
- Università di Verona
- and INSTM
- UdR Verona
| | - Marco Bettinelli
- Luminescent Materials Laboratory
- DB
- Università di Verona
- and INSTM
- UdR Verona
| | - Magda Monari
- Dipartimento di Chimica “G. Ciamician”
- Università di Bologna
- 40126 Bologna
- Italy
| | - Cristian Grazioli
- Dipartimento di Chimica
- Fisica e Ambiente
- Università di Udine
- 33100 Udine
- Italy
| | - Andrea Melchior
- Dipartimento di Chimica
- Fisica e Ambiente
- Università di Udine
- 33100 Udine
- Italy
| | - Marilena Tolazzi
- Dipartimento di Chimica
- Fisica e Ambiente
- Università di Udine
- 33100 Udine
- Italy
| |
Collapse
|
32
|
Balabhadra S, Debasu ML, Brites CDS, Nunes LAO, Malta OL, Rocha J, Bettinelli M, Carlos LD. Boosting the sensitivity of Nd(3+)-based luminescent nanothermometers. Nanoscale 2015; 7:17261-7. [PMID: 26426085 DOI: 10.1039/c5nr05631d] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Luminescence thermal sensing and deep-tissue imaging using nanomaterials operating within the first biological window (ca. 700-980 nm) are of great interest, prompted by the ever-growing demands in the fields of nanotechnology and nanomedicine. Here, we show that (Gd1-xNdx)2O3 (x = 0.009, 0.024 and 0.049) nanorods exhibit one of the highest thermal sensitivity and temperature uncertainty reported so far (1.75 ± 0.04% K(-1) and 0.14 ± 0.05 K, respectively) for a nanothermometer operating in the first transparent near infrared window at temperatures in the physiological range. This sensitivity value is achieved using a common R928 photomultiplier tube that allows defining the thermometric parameter as the integrated intensity ratio between the (4)F5/2 → (4)I9/2 and (4)F3/2 → (4)I9/2 transitions (with an energy difference between the barycentres of the two transitions >1000 cm(-1)). Moreover, the measured sensitivity is one order of magnitude higher than the values reported so far for Nd(3+)-based nanothermometers enlarging, therefore, the potential of using Nd(3+) ions in luminescence thermal sensing and deep-tissue imaging.
Collapse
Affiliation(s)
- Sangeetha Balabhadra
- Department of Physics and CICECO Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal.
| | | | | | | | | | | | | | | |
Collapse
|
33
|
Mihorianu M, Leonzio M, Bettinelli M, Piccinelli F. The paramagnetic metal effect on the luminescence of rare-earth-metal complexes with pyridine-based nitrogen ligands. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.08.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
34
|
Brik M, Bettinelli M, Cavalli E. Modeling the lattice parameters of zircon-type MXO4 (M=divalent, trivalent or tetravalent metal, X=V, P, As, Si) crystals. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.05.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
35
|
Bettinelli M, Di Sipio L, Valle G, Aschieri C, Ingletto G. Crystal structures of three substituted ammonium hexachlororhenates(IV). Z KRIST-CRYST MATER 2015. [DOI: 10.1524/zkri.1989.188.14.155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
36
|
Rodríguez-Sevilla P, Rodríguez-Rodríguez H, Pedroni M, Speghini A, Bettinelli M, Solé JG, Jaque D, Haro-González P. Assessing Single Upconverting Nanoparticle Luminescence by Optical Tweezers. Nano Lett 2015; 15:5068-74. [PMID: 26120948 DOI: 10.1021/acs.nanolett.5b01184] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We report on stable, long-term immobilization and localization of a single colloidal Er(3+)/Yb(3+) codoped upconverting fluorescent nanoparticle (UCNP) by optical trapping with a single infrared laser beam. Contrary to expectations, the single UCNP emission differs from that generated by an assembly of UCNPs. The experimental data reveal that the differences can be explained in terms of modulations caused by radiation-trapping, a phenomenon not considered before but that this work reveals to be of great relevance.
Collapse
Affiliation(s)
- P Rodríguez-Sevilla
- †Fluorescence Imaging Group, Departamento de Física de Materiales, Modulo 4, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid 28049, Spain
| | - H Rodríguez-Rodríguez
- †Fluorescence Imaging Group, Departamento de Física de Materiales, Modulo 4, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid 28049, Spain
| | - M Pedroni
- ‡Dipartimento di Biotecnologie, Università di Verona and INSTM, UdR Verona, Ca' Vignal, Strada Le Grazie 15, I-37134 Verona, Italy
| | - A Speghini
- ‡Dipartimento di Biotecnologie, Università di Verona and INSTM, UdR Verona, Ca' Vignal, Strada Le Grazie 15, I-37134 Verona, Italy
| | - M Bettinelli
- ‡Dipartimento di Biotecnologie, Università di Verona and INSTM, UdR Verona, Ca' Vignal, Strada Le Grazie 15, I-37134 Verona, Italy
| | - J García Solé
- †Fluorescence Imaging Group, Departamento de Física de Materiales, Modulo 4, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid 28049, Spain
| | - D Jaque
- †Fluorescence Imaging Group, Departamento de Física de Materiales, Modulo 4, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid 28049, Spain
| | - P Haro-González
- †Fluorescence Imaging Group, Departamento de Física de Materiales, Modulo 4, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid 28049, Spain
| |
Collapse
|
37
|
Errandonea D, Muñoz A, Rodríguez-Hernández P, Proctor JE, Sapiña F, Bettinelli M. Theoretical and Experimental Study of the Crystal Structures, Lattice Vibrations, and Band Structures of Monazite-Type PbCrO4, PbSeO4, SrCrO4, and SrSeO4. Inorg Chem 2015; 54:7524-35. [PMID: 26161677 DOI: 10.1021/acs.inorgchem.5b01135] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The crystal structures, lattice vibrations, and electronic band structures of PbCrO4, PbSeO4, SrCrO4, and SrSeO4 were studied by ab initio calculations, Raman spectroscopy, X-ray diffraction, and optical-absorption measurements. Calculations properly describe the crystal structures of the four compounds, which are isomorphic to the monazite structure and were confirmed by X-ray diffraction. Information is also obtained on the Raman- and IR-active phonons, with all of the vibrational modes assigned. In addition, the band structures and electronic densities of states of the four compounds were determined. All are indirect-gap semiconductors. In particular, chromates are found to have band gaps smaller than 2.5 eV and selenates higher than 4.3 eV. In the chromates (selenates), the upper part of the valence band is dominated by O 2p states and the lower part of the conduction band is composed primarily of electronic states associated with the Cr 3d and O 2p (Se 4s and O 2p) states. Calculations also show that the band gap of PbCrO4 (PbSeO4) is smaller than the band gap of SrCrO4 (SrSeO4). This phenomenon is caused by Pb states, which, to some extent, also contribute to the top of the valence band and the bottom of the conduction band. The agreement between experiments and calculations is quite good; however, the band gaps are underestimated by calculations, with the exception of the bang gap of SrCrO4, for which theory and calculations agree. Calculations also provide predictions of the bulk modulus of the studied compounds.
Collapse
Affiliation(s)
- Daniel Errandonea
- †Departamento de Física Aplicada, ICMUV, MALTA Consolider Team, Edificio de Investigación, Universidad de Valencia, C. Dr. Moliner 50, 46100 Burjassot, Spain
| | - Alfonso Muñoz
- ‡Departamento Física, Malta Consolider Team, and Instituto de Materiales y Nanotecnología, Universidad de La Laguna, 38206 La Laguna, Tenerife, Spain
| | - Placida Rodríguez-Hernández
- ‡Departamento Física, Malta Consolider Team, and Instituto de Materiales y Nanotecnología, Universidad de La Laguna, 38206 La Laguna, Tenerife, Spain
| | - John E Proctor
- §Joule Physics Laboratory, University of Salford, Manchester M5 4WT, U.K
| | - Fernando Sapiña
- ⊥Institut de Ciencia dels Materials (ICMUV), Universitat de Valencia, C/Catedrático José Beltrán 2, 46890 Paterna, Spain
| | - Marco Bettinelli
- ∥Luminescent Materials Laboratory, Department of Biotechnology, University of Verona and INSTM, UdR Verona, Strada Le Gracie 15, 37134 Verona, Italy
| |
Collapse
|
38
|
Rodríguez-Rodríguez H, Rodríguez Sevilla P, Martín Rodríguez E, Ortgies DH, Pedroni M, Speghini A, Bettinelli M, Jaque D, Haro-González P. Enhancing optical forces on fluorescent up-converting nanoparticles by surface charge tailoring. Small 2015; 11:1555-61. [PMID: 25451550 DOI: 10.1002/smll.201402587] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 09/25/2014] [Indexed: 05/07/2023]
Abstract
3D remote control of multifunctional fluorescent up-converting nanoparticles (UCNPs) using optical forces is being required for a great variety of applications including single-particle spectroscopy, single-particle intracellular sensing, controlled and selective light-activated drug delivery and light control at the nanoscale. Most of these potential applications find a serious limitation in the reduced value of optical forces (tens of fN) acting on these nanoparticles, due to their reduced dimensions (typically around 10 nm). In this work, this limitation is faced and it is demonstrated that the magnitude of optical forces acting on UCNPs can be enhanced by more than one order of magnitude by a controlled modification of the particle/medium interface. In particular, substitution of cationic species at the surface by other species with higher mobility could lead to UCNPs trapping with constants comparable to those of spherical metallic nanoparticles.
Collapse
Affiliation(s)
- Héctor Rodríguez-Rodríguez
- Fluorescence Imaging Group, Departamento de Física de Materiales, C-IV, Universidad Autónoma de, Madrid C/Francisco Tomás y Valiente 7, Madrid, 28049, Spain
| | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Affiliation(s)
- Marco Bettinelli
- Luminescent Materials Laboratory, Department of Biotechnology, University of Verona and at INSTM, Strada Le Grazie 15, I-37134 Verona, Italy
| |
Collapse
|
40
|
Piccinelli F, Bettinelli M, Melchior A, Grazioli C, Tolazzi M. Structural, optical and sensing properties of novel Eu(iii) complexes with furan- and pyridine-based ligands. Dalton Trans 2015; 44:182-92. [DOI: 10.1039/c4dt02326a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Effect of the ligand's donor ability on the luminescence sensing of nitrate anions.
Collapse
Affiliation(s)
- Fabio Piccinelli
- Laboratorio Materiali Luminescenti
- DB
- Università di Verona
- and INSTM
- UdR Verona
| | - Marco Bettinelli
- Laboratorio Materiali Luminescenti
- DB
- Università di Verona
- and INSTM
- UdR Verona
| | - Andrea Melchior
- Dipartimento di Chimica
- Fisica e Ambiente
- Università di Udine
- 33100 Udine
- Italy
| | - Cristian Grazioli
- Dipartimento di Chimica
- Fisica e Ambiente
- Università di Udine
- 33100 Udine
- Italy
| | - Marilena Tolazzi
- Dipartimento di Chimica
- Fisica e Ambiente
- Università di Udine
- 33100 Udine
- Italy
| |
Collapse
|
41
|
Azkargorta J, Iparraguirre I, Bettinelli M, Cavalli E, Barredo-Zuriarrain M, García-Revilla S, Balda R, Fernandez J. Effects of pumping wavelength and pump density on the random laser performance of stoichiometric Nd crystal powders. Opt Express 2014; 22:27365-27372. [PMID: 25401885 DOI: 10.1364/oe.22.027365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Laser slope and threshold properties have been investigated in Nd stoichiometric crystal powders as a function of pump wavelength and pump beam size. Above a given pumped area, the laser slope and the threshold pump energy per unit area are invariant and the known theoretical expressions are well fulfilled. Likewise, the size of the stimulated emission zone as a function of the pump beam area has been measured, also showing a different behavior above or below a given pumped area value which coincides with the one mentioned above. In conclusion, two different operating regimes with different performances are clearly observed as a function of the pump beam area.
Collapse
|
42
|
Cavalli E, Angiuli F, Mezzadri F, Trevisani M, Bettinelli M, Boutinaud P, Brik MG. Tunable luminescence of Bi(3+)-doped YP(x)V(1-x)O4 (0 ≤ x ≤1). J Phys Condens Matter 2014; 26:385503. [PMID: 25186135 DOI: 10.1088/0953-8984/26/38/385503] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A systematic investigation of the luminescence spectroscopy of Y(P,V)O4:Bi(3+) is presented. The emission spectra and the decay curves are measured as a function of the host morphology, composition, temperature, excitation wavelength, and doping concentration. On this basis, the nature of the excited states and the radiative and non-radiative relaxation processes are discussed. Colour coordinates and quantum yield measurements are also carried out to provide information about the potential applications of the studied materials.
Collapse
Affiliation(s)
- Enrico Cavalli
- Department of Chemistry, University of Parma, Parma, Italy
| | | | | | | | | | | | | |
Collapse
|
43
|
Marin-Dobrincic M, García-Sevillano J, Bettinelli M, Piccinelli F, Cantelar E, Cussó F. Quantification of energy transfer processes in LiLa₉(SiO₄)₆O₂:Er³⁺/Yb³⁺ under selective Er³⁺ excitation. Opt Express 2014; 22:14646-14656. [PMID: 24977560 DOI: 10.1364/oe.22.014646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The energy transfer mechanisms between Er3+ and Yb3+ ions have been investigated in LiLa9(SiO4)6O2 under selective Er3+ excitation. IR emission spectra, measured in the CW excitation regime, were used to establish a relationship between the macroscopic transfer and back transfer parameters. These measurements were combined with the results obtained under pulsed excitation to quantify the absolute values of transfer (Yb3+ → Er3+) and back transfer coefficients (Er3+ → Yb3+), C25 = 9.5 × 10−17 cm3s−1 and C52 = 1.4 × 10−17 cm3s−1, respectively. Additionally, it has been observed an energy transfer that reduces the quantum efficiency of the green emitting Er3+ levels. The corresponding macroscopic coefficient has been also determined (CGQ = 6.1 × 10−17 cm3s−1).
Collapse
|
44
|
Abstract
Abstract
The local coordination of europium in vitreous Eu metaphosphate has been investigated, using information obtainable from crystalline EuP3O9. One glassy sample and one crystalline sample of nominal EuP3O9 composition were examined by X-ray diffraction. The description of the close coordination of Eu, deduced from the orthorhombic structure of the crystalline sample, was used as a model for the amorphous situation. Besides, as a monoclinic form of Eu metaphosphate is also reported to exist, a second model was deduced from this structure, starting from the isomorphous monoclinic Yb metaphosphate. Best fitting calculations indicated that orthorhombic coordination is the better model for the short range order of europium in the vitreous metaphosphate.
Collapse
Affiliation(s)
- Mario Cannas
- Dipartimento di Scienze Chimiche, Universitä di Cagliari, Italy
| | - Enrico Manca
- Dipartimento di Scienze Fisiche, Universitä di Cagliari, Italy
| | - Gabriella Pinna
- Dipartimento di Scienze Chimiche, Universitä di Cagliari, Italy
| | - Marco Bettinelli
- Istituto Policattedra, Facolta di Scienze MFN, Universita di Verona, Italy
| | - Adolfo Speghini
- Istituto Policattedra, Facolta di Scienze MFN, Universita di Verona, Italy
| |
Collapse
|
45
|
Abstract
Abstract
Two vitreous samples, 0.9 Z n (PO3)2 • 0.1 Eu(PO3)3 and pure zinc metaphosphate, were examined by X-ray diffraction to determine the local environment of the Eu3+ ion. Using a difference procedure involving the radial functions of the two glasses, the results indicate that the rare-earth ion is surrounded on average by a polyhedron of about 7.4 oxygens at 2.36 A and about 1.6 oxygens at 2.68 Å. A possible different coordination of the zinc ion in the two samples, suggested by the experimental findings, is discussed.
Collapse
Affiliation(s)
- Maria Paola Medda
- Dipartimento di Scienze Chimiche, Università di Cagliari, Via Ospedale 72,1-09124 Cagliari, Italy
| | - Giorgio Piccaluga
- Dipartimento di Scienze Chimiche, Università di Cagliari, Via Ospedale 72,1-09124 Cagliari, Italy
| | - Gabriella Pinna
- Dipartimento di Scienze Chimiche, Università di Cagliari, Via Ospedale 72,1-09124 Cagliari, Italy
| | - Marco Bettinelli
- Sezione di Chimica, Istituto Policattedra, Facoltà di Scienze MM. FF. N N ., Universitä di Verona, Strada Le Grazie, 1-37134 Verona, Italy
| | - Guy Cormier
- Unità del Consorzio Interuniversitario Nazionale per la Fisica della Materia, Dipartimento di Fisica, Università di Padova, Via Marzolo 8, 1-35131 Padova, Italy
| |
Collapse
|
46
|
Trevisani M, Ivanovskikh K, Piccinelli F, Bettinelli M. Synchrotron Radiation Study of Interconfigurational 5d-4f Luminescence of Pr3+ in KLuP2O7. Zeitschrift für Naturforschung B 2014. [DOI: 10.5560/znb.2014-3260] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The double phosphate KLuP2O7 doped with Pr3+ ions was prepared by solid-state reaction. The material obtained was characterized by powder X-ray diffraction. The luminescence spectroscopy and the excited state dynamics of this material were studied upon excitation with VUV synchrotron radiation. The 5d-4 f emission of Pr3+ upon both direct and band gap excitation was detected and assigned. The decay kinetics of the Pr3+ 5d-4 f emission is characterized by a decay time of about 20 ns and is nearly temperature independent within the range 8 - 300 K. Both dynamics and energy transfer peculiarities revealed in the study suggested good potentials for application of KLuP2O7:Pr3+ as a fast scintillator material.
Collapse
Affiliation(s)
- Mattia Trevisani
- Laboratory of Luminescent Materials, Department of Biotechnology, University of Verona, and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Konstantin Ivanovskikh
- Institute of Physics and Technology, Ural Federal University, Ekaterinburg 62002, Russia
| | - Fabio Piccinelli
- Laboratory of Luminescent Materials, Department of Biotechnology, University of Verona, and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Marco Bettinelli
- Laboratory of Luminescent Materials, Department of Biotechnology, University of Verona, and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| |
Collapse
|
47
|
Mahlik S, Lazarowska A, Speghini A, Bettinelli M, Grinberg M. Temperature evolution of the luminescence decay of Sr0.33Ba0.67Nb2O6 : Pr3+. J Phys Condens Matter 2014; 26:165502. [PMID: 24695003 DOI: 10.1088/0953-8984/26/16/165502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This article presents a spectroscopic investigation of Sr(0.33)Ba(0.67)(NbO2)3, doped with 1 mol% of Pr(3+). Photoluminescence and luminescence kinetics were measured at different temperatures at ambient (ferroelectric phase) and 76 kbar pressures (paraelectric phase). The photoluminescence spectrum is dominated by (1)D2 → (3)H4 transition of Pr(3+) in both phases. At ambient pressure when the system is excited with UV radiation, the intensity of dominant (1)D2 → (3)H4 emission evidently increases in the 200-293 K temperature range. This effect is attributed to enhancement of the excitation of the (1)D2 state through the praseodymium trapped exciton state, which at higher temperatures does not populate the higher lying (3)P0 state. Additionally, under UV radiation the material exhibits afterglow luminescence activated by temperature that can also have an impact on the increase of the (1)D2 emission. We propose that the afterglow luminescence is related to the existence of electron traps. At a pressure of 76 kbar the depth of the electron traps decreases in comparison to the ones observed at ambient pressure. However, the phase transition does not change the number of electron traps.
Collapse
Affiliation(s)
- S Mahlik
- Institute of Experimental Physics, University of Gdansk, Wita Stwosza 57, 80-952 Gdańsk, Poland
| | | | | | | | | |
Collapse
|
48
|
Barrera EW, Pujol MC, Carvajal JJ, Mateos X, Solé R, Massons J, Speghini A, Bettinelli M, Cascales C, Aguiló M, Díaz F. White light upconversion in Yb-sensitized (Tm, Ho)-doped KLu(WO4)2nanocrystals: the effect of Eu incorporation. Phys Chem Chem Phys 2014; 16:1679-86. [DOI: 10.1039/c3cp53847h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
49
|
Piccinelli F, Lausi A, Bettinelli M. Structural investigation of the new Ca3Ln2Ge3O12 (Ln=Pr, Nd, Sm, Gd and Dy) compounds and luminescence spectroscopy of Ca3Gd2Ge3O12 doped with the Eu3+ ion. J SOLID STATE CHEM 2013. [DOI: 10.1016/j.jssc.2013.07.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
50
|
|