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Silatan A, Ghaderi GoranAbad M, Mahmoudi M. Optical limiting via spontaneously generated coherence. Sci Rep 2023; 13:364. [PMID: 36611061 PMCID: PMC9825624 DOI: 10.1038/s41598-023-27381-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 01/02/2023] [Indexed: 01/09/2023] Open
Abstract
We investigate the reverse saturable absorption (RSA) and optical limiting (OL) in a three-level V-type quantum system considering the effect of the spontaneously generated coherence (SGC). It is shown that in the absence of the SGC effect, the saturable absorption (SA) is dominant in the system. By taking into account the SGC effect, we prove that the SA dramatically switches to the RSA. Moreover, it is demonstrated that the OL threshold and OL efficiency can be controlled by the SGC effect. In addition, we show that the applied field properties such as detuning can modify the SGC-induced optical limiter efficiency. It is also shown an increase in the atomic density and length of the medium makes the optical limiter more efficient. The analytical calculation shows that the Kerr nonlinearity caused by the SGC effect is the main mechanism of the system evolution. Finally, the theoretical Z-scan experiment is presented to confirm the obtained results. Our proposed scheme can be useful to design controllable atomic optical limiters for optical devices with different sensitivities.
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Affiliation(s)
- Abbas Silatan
- Department of Physics, University of Zanjan, University Blvd, 45371-38791, Zanjan, Iran
| | | | - Mohammad Mahmoudi
- Department of Physics, University of Zanjan, University Blvd, 45371-38791, Zanjan, Iran.
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2
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Plasmonic Surface of Metallic Gold and Silver Nanoparticles Induced Fluorescence Quenching of Meso-Terakis (4-Sulfonatophenyl) Porphyrin (TPPS) and Theoretical-Experimental Comparable. J Fluoresc 2022; 32:2257-2269. [PMID: 36045307 PMCID: PMC9606071 DOI: 10.1007/s10895-022-03022-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 08/24/2022] [Indexed: 11/09/2022]
Abstract
Colloidal metallic nanoparticles have attracted a lot of interest in the last two decades owing to their simple synthesis and fascinating optical properties. In this manuscript, a study of the effect of both gold nanoparticles (Au NPs) and silver nanoparticles (Ag NPs) on the fluorescence emission (FE) of TPPS has been investigated utilizing steady-state fluorescence spectroscopy and UV–Vis spectrophotometry. From the observed electronic absorption spectra, there is no evidence of the ground state interaction between metallic Au NPs or Ag NPs with TPPS. On the other side, the FE spectra of TPPS have been quenched by both Ag and Au NPs. Via applying quenching calculations, Ag NPs showed only traditional static fluorescence quenching of TPPS with linear Stern–Volmer (SV) plots. On the contrary, quenching of TPPS emission by Au NPs shows composed models. One model is the sphere of action static quenching model that prevails at high quencher concentrations leading to non-linear SV plots with positive deviation. However, at low Au NPs concentrations, traditional dynamic quenching occurs with linear SV plots. The quantum calculations for TPPS structure have been obtained using Gaussian 09 software: in which the TPPS optimized molecular structure was achieved using DFT/B3LYP/6-311G (d) in a gaseous state. Also, the calculated electronic absorption spectra for the same molecule in water as a solvent are obtained using TD/M06/6-311G + + (2d, 2p). Furthermore, the theoretical and experimental results comparable to UV–Vis spectra have been investigated.
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3
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Directed synthesis and study of their spectroscopic behavior in solution of rare-earth phthalocyaninates substituted by benzyloxy- and methylphenylethylphenoxy-groups. J INCL PHENOM MACRO 2022. [DOI: 10.1007/s10847-021-01120-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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4
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Parra GG, Correa DS, Silveira-Alves E, Almeida LM, Souza MAR, De Boni L, Misoguti L, Mendonça CR, Zílio SC, Barbosa Neto NM, Borissevitch IE, Gonçalves PJ. Effects of meso-tetrakis (4-sulfonatophenyl) porphyrin (TPPS 4) aggregation on its spectral and kinetic characteristics and singlet oxygen production. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 261:120063. [PMID: 34153547 DOI: 10.1016/j.saa.2021.120063] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/07/2021] [Indexed: 06/13/2023]
Abstract
The present work reports the effects of meso-tetrakis (4-sulfonatophenyl) porphyrin (TPPS4) aggregation on its excited states absorption spectra, triplet states quenching by molecular oxygen and singlet oxygen production. Experimental techniques such as optical absorption, Z-scan with a white light continuum source and the Laser Flash Photolysis were used to fulfil the study. J-aggregates possess reverse saturable absorption in the 505-660 nm spectral range with a peak centered close to 540 nm. These facts together with their fast relaxation time suggest that they can be employed as material for ultrafast optical limiting and switching. Even though aggregation reduces the porphyrin excited-state lifetimes and quantum yields, it does not reduce the probability of the contact between the quencher and the excited aggregate. Aggregation does not change the contribution of energy transfer mechanisms to triplet state quenching by molecular oxygen. The production of singlet oxygen, the intense absorption in the phototherapeutic window and the high efficiency of conversion of light energy into heat, allow consider J-aggregates as a theranostic agent for photomedicine. It is proposed to use J-aggregates for diagnostics by photoacoustic images and in combination with a near-infrared photodynamic/photothermal dual mode therapy, thus improving synergistically the therapeutic response.
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Affiliation(s)
- Gustavo G Parra
- Departamento de Física, FFCLRP, Universidade de São Paulo, Av. Bandeirantes 3900, 14040-901 Ribeirão Preto, SP, Brazil
| | - Daniel S Correa
- EMBRAPA Instrumentação, Rua XV de Novembro, 1452, 13560-970 São Carlos, SP, Brazil
| | - Eli Silveira-Alves
- Instituto de Química, Universidade Federal de Goiás, 74001-970 Goiânia, GO, Brazil
| | - Luciane M Almeida
- Universidade Estadual de Goiás/UEG, BR-153 3105, Fazenda Barreiro do Meio, Campus Anápolis de Ciências Exatas e Tecnológicas, 75132-400 Anápolis, GO, Brazil
| | - Marcio A R Souza
- Instituto de Física, Universidade Federal de Goiás, 74001-970 Goiânia, GO, Brazil
| | - Leonardo De Boni
- Instituto de Física de São Carlos, Universidade de São Paulo, 13560-970 São Carlos, SP, Brazil
| | - Lino Misoguti
- Instituto de Física de São Carlos, Universidade de São Paulo, 13560-970 São Carlos, SP, Brazil
| | - Cleber R Mendonça
- Instituto de Física de São Carlos, Universidade de São Paulo, 13560-970 São Carlos, SP, Brazil
| | - Sérgio C Zílio
- Instituto de Física, Universidade Federal de Goiás, 74001-970 Goiânia, GO, Brazil; Instituto de Física de São Carlos, Universidade de São Paulo, 13560-970 São Carlos, SP, Brazil
| | - Newton M Barbosa Neto
- Faculdade de Física, Universidade Federal do Pará, Av. Augusto Correa, 01, Guamá, 66075-110 Belém, PA, Brazil
| | - Iouri E Borissevitch
- Departamento de Física, FFCLRP, Universidade de São Paulo, Av. Bandeirantes 3900, 14040-901 Ribeirão Preto, SP, Brazil; Instituto de Física, Universidade Federal de Goiás, 74001-970 Goiânia, GO, Brazil.
| | - Pablo J Gonçalves
- Instituto de Química, Universidade Federal de Goiás, 74001-970 Goiânia, GO, Brazil; Instituto de Física, Universidade Federal de Goiás, 74001-970 Goiânia, GO, Brazil.
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5
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The photodynamic antimicrobial chemotherapy of Stapphylococcus aureus using an asymmetrical zinc phthalocyanine conjugated to silver and iron oxide based nanoparticles. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112813] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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6
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Pal C, Chambrier I, Cammidge AN, Sharma AK, Ray AK. Steady state charge conduction through solution processed liquid crystalline lanthanide bisphthalocyanine films. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424619501918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In-plane electrical characteristics of non-peripherally octyl(C[Formula: see text]H[Formula: see text]- and hexyl(C[Formula: see text]H[Formula: see text]-substituted liquid crystalline (LC) double decker lanthanide bisphthalocyanine (LnPc[Formula: see text] complexes with central metal ions lutetium (Lu), and gadolinium (Gd) have been measured in thin film formulations on interdigitated gold (Au) electrodes for the applied voltage ([Formula: see text] range of [Formula: see text]. The conduction mechanism is found to be Ohmic within the bias of [Formula: see text] while the bulk limited Poole–Frenkel mechanism is responsible for the higher bias. The compounds show individual characteristics depending on the central metal ions, substituent chain lengths and their mesophases. Values of 67.55 [Formula: see text]cm[Formula: see text] and 42.31 [Formula: see text]cm[Formula: see text] have been obtained for room temperature in-plane Ohmic conductivity of as-deposited octyl lutetium (C[Formula: see text]LuPc[Formula: see text] and hexyl gadolinium (C[Formula: see text]GdPc[Formula: see text] films, respectively while C[Formula: see text]GdPc[Formula: see text] films exhibit nearly two orders of magnitude smaller conductivity. On annealing at 80[Formula: see text]C, Ohmic conductivities of C[Formula: see text]LuPc[Formula: see text] and C[Formula: see text]GdPc[Formula: see text] are found to have increased but the conductivity of C[Formula: see text]GdPc[Formula: see text] decreased by more than one order of magnitude to 1.5 [Formula: see text]cm[Formula: see text]. For physical interpretation of the charge transport behavior of these three molecules, their UV-vis optical absorption spectra in the solution and in as-deposited and annealed solid phases and atomic force microscopy study have been performed. It is believed that both orientation and positional reorganizations are responsible, depending upon the size of the central ion and side chain length.
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Affiliation(s)
- Chandana Pal
- Institute of Materials and Manufacturing, Brunel University London, Uxbridge, Middlesex UB8 3PH, UK
| | | | | | - A. K. Sharma
- United States Air Force Research Laboratory, Space Vehicles Directorate, SE Kirtland AFB, NM 87117, USA
| | - Asim K. Ray
- Institute of Materials and Manufacturing, Brunel University London, Uxbridge, Middlesex UB8 3PH, UK
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7
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Optical, electrochemical and current−voltage characteristics of novel coumarin based 2,4-dinitrophenylhydrazone derivatives. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.126946] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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8
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Mapukata S, Kobayashi N, Kimura M, Nyokong T. Asymmetrical and symmetrical zinc phthalocyanine-cobalt ferrite conjugates embedded in electrospun fibers for dual photocatalytic degradation of azo dyes: Methyl Orange and Orange G. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.04.048] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Sunatkari AL, Talwatkar SS, Tamgadge YS, Muley GG. Surfactant-dependant thermally induced nonlinear optical properties of l-ascorbic acid-stabilized colloidal GNPs and GNP-PVP thin films. RSC Adv 2019; 9:15502-15512. [PMID: 35514826 PMCID: PMC9064276 DOI: 10.1039/c9ra01598a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 04/15/2019] [Indexed: 11/21/2022] Open
Abstract
Gold nanoparticle (GNP) colloids stabilized with various concentrations of l-ascorbic acid were synthesized by the chemical reduction method and characterized by UV-Vis spectroscopy, XRD, FT-IR spectroscopy and TEM. XRD and TEM studies confirmed the reduction in particle size with the stabilizer concentration. UV-Vis spectra showed a blue shift in the LSPR peak. FT-IR peaks ascertained the strong encapsulation of GNPs with l-ascorbic acid functional groups. The nonlinear optical (NLO) properties of colloidal GNPs and GNP-PVP composite thin film were investigated using the Z-scan technique with CW laser excitation at 632.8 nm. The effects of stabilizer concentrations on nonlinear refractive index (n 2), nonlinear absorption coefficient (β) and third-order susceptibility (χ (3)) of colloidal GNPs and GNP-PVP composite thin films were investigated. The values of the NLO parameters for the thin films were as large as n 2 = 10-5 cm2 W-1, β = 10-5 cm W-1 and χ (3) eff = 10-5 esu. For colloidal GNPs, these parameters were n 2 = 10-6 cm2 W-1, β = 10-6 cm W-1 and χ (3) eff = 10-7 esu. In both these cases, the NLO parameter values were found to decrease as the stabilizer concentration increased from 1 to 5 mM. The considerable enhancement in the NLO parameters may be attributed to the thermal lensing effect originating from the thermo-optic phenomenon. From the results, the influence of the concentration of the stabilizer on the NLO properties is obvious.
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Affiliation(s)
- A L Sunatkari
- Department of Physics, Siddhartha College of Arts, Science and Commerce Fort Mumbai-400001 India
| | - S S Talwatkar
- Department of Physics, N. G. Aacharya and D. K. Maratha College of Arts, Science and Commerce Chembur Mumbai-400071 India
| | - Y S Tamgadge
- Department of Physics, Mahatma Phule Arts, Commerce & S. C. Science College Warud-444906 India
| | - G G Muley
- Department of Physics, Sant Gadge Baba Amravati University Amravati-444602 India
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10
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Sekhosana KE, Nkhahle R, Nyokong T. The Primary Demonstration of Exciton Coupling Effects on Optical Limiting Properties of Blue Double‐Decker Lanthanide Phthalocyanine Salts. ChemistrySelect 2018. [DOI: 10.1002/slct.201800597] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kutloano E. Sekhosana
- Center for Nanotechnology and InnovationDepartment of ChemistryRhodes University, PO Box 94 Grahamstown 6140 South Africa
| | - Reitumetse Nkhahle
- Center for Nanotechnology and InnovationDepartment of ChemistryRhodes University, PO Box 94 Grahamstown 6140 South Africa
| | - Tebello Nyokong
- Center for Nanotechnology and InnovationDepartment of ChemistryRhodes University, PO Box 94 Grahamstown 6140 South Africa
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11
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Sekhosana KE, Shumba M, Nyokong T. Electrochemical and non-linear optical behavior of a new neodymium double-decker phthalocyanine. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.09.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Mapukata S, Chindeka F, Sekhosana KE, Nyokong T. Laser induced photodegradation of Orange G using phthalocyanine – cobalt ferrite magnetic nanoparticle conjugates electrospun in polystyrene nanofibers. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.06.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Dini D, Calvete MJF, Hanack M. Nonlinear Optical Materials for the Smart Filtering of Optical Radiation. Chem Rev 2016; 116:13043-13233. [PMID: 27933768 DOI: 10.1021/acs.chemrev.6b00033] [Citation(s) in RCA: 245] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The control of luminous radiation has extremely important implications for modern and future technologies as well as in medicine. In this Review, we detail chemical structures and their relevant photophysical features for various groups of materials, including organic dyes such as metalloporphyrins and metallophthalocyanines (and derivatives), other common organic materials, mixed metal complexes and clusters, fullerenes, dendrimeric nanocomposites, polymeric materials (organic and/or inorganic), inorganic semiconductors, and other nanoscopic materials, utilized or potentially useful for the realization of devices able to filter in a smart way an external radiation. The concept of smart is referred to the characteristic of those materials that are capable to filter the radiation in a dynamic way without the need of an ancillary system for the activation of the required transmission change. In particular, this Review gives emphasis to the nonlinear optical properties of photoactive materials for the function of optical power limiting. All known mechanisms of optical limiting have been analyzed and discussed for the different types of materials.
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Affiliation(s)
- Danilo Dini
- Department of Chemistry, University of Rome "La Sapienza" , P.le Aldo Moro 5, I-00185 Rome, Italy
| | - Mário J F Calvete
- CQC, Department of Chemistry, Faculty of Science and Technology, University of Coimbra , Rua Larga, P 3004-535 Coimbra, Portugal
| | - Michael Hanack
- Institut für Organische Chemie, Universität Tübingen , Auf der Morgenstelle 18, D-72076 Tübingen, Germany
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de Souza TGB, Vivas MG, Mendonça CR, Plunkett S, Filatov MA, Senge MO, De Boni L. Studying the intersystem crossing rate and triplet quantum yield of meso-substituted porphyrins by means of pulse train fluorescence technique. J PORPHYR PHTHALOCYA 2016. [DOI: 10.1142/s1088424616500048] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Excited state dynamics, particularly intersystem crossing, of a set of meso-substituted porphyrins bearing different electron–donor and acceptor groups was studied by pulse train fluorescence technique. Triplet quantum yield was found to be critically dependent on the nature of meso-substituents in the porphyrin system. Porphyrins with meso methoxyphenyl groups were found to show high triplet quantum yields ([Formula: see text] between 0.70 and 0.81). Moreover, the quantity of methoxyphenyl groups and the substitution pattern directly influence [Formula: see text]. Alternatively, porphyrins attached to nitrophenyl group possess low triplet quantum yield values (~0.3). The observed structure-properties relationships suggest new ways for tuning the optical properties of porphyrins via chemical modification.
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Affiliation(s)
| | - Marcelo Gonçalves Vivas
- Instituto de Ciência de Tecnologia, Universidade Federal de Alfenas, Cidade Universitária-BR 267 Km 533, 37715-400 Poços de Caldas, MG, Brazil
| | - Cleber Renato Mendonça
- Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13560-970 São Carlos-SP, Brazil
| | - Shane Plunkett
- School of Chemistry, SFI Tetrapyrrole Laboratory, Trinity Biomedical Sciences Institute, 152-160 Pearse Street, Trinity College Dublin, Dublin 2, Ireland
| | - Mikhail A. Filatov
- School of Chemistry, SFI Tetrapyrrole Laboratory, Trinity Biomedical Sciences Institute, 152-160 Pearse Street, Trinity College Dublin, Dublin 2, Ireland
| | - Mathias O. Senge
- School of Chemistry, SFI Tetrapyrrole Laboratory, Trinity Biomedical Sciences Institute, 152-160 Pearse Street, Trinity College Dublin, Dublin 2, Ireland
| | - Leonardo De Boni
- Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13560-970 São Carlos-SP, Brazil
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15
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Zucolotto Cocca LH, Ayhan MM, Gürek AG, Ahsen V, Bretonnière Y, de Paula Siqueira J, Gotardo F, Mendonça CR, Hirel C, De Boni L. Mechanism of the Zn(II)Phthalocyanines' Photochemical Reactions Depending on the Number of Substituents and Geometry. Molecules 2016; 21:molecules21050635. [PMID: 27187343 PMCID: PMC6274317 DOI: 10.3390/molecules21050635] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 04/28/2016] [Accepted: 05/03/2016] [Indexed: 01/23/2023] Open
Abstract
In this work, the synthesis and the nonlinear absorption and population dynamics investigation of a series of zinc phthalocyanines (ZnPcs) dissolved in chloroform are reported. In order to determine the relevant spectroscopic parameters, such as absorption cross-sections of singlet and triplet excited states, fluorescence relaxation times, intersystem crossing, radiative decay and internal conversion, different optical and spectroscopic techniques were used. By single pulse and pulse train Z-scan techniques, respectively, singlet and triplet excited states‘ absorption cross-section were determined at 532 nm. Furthermore, the intersystem crossing time was obtained by using both techniques combined with the fluorescence lifetime determined by time-resolved fluorescence. The radiative and internal conversion rates were determined from the fluorescence quantum yield of the samples. Such spectroscopy parameters are fundamental for selecting photosensitizers used in photodynamic therapy, as well as for many other applications.
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Affiliation(s)
| | - Mehmet Menaf Ayhan
- Department of Chemistry, Faculty of Science, Gebze Technical University, P. O. Box 141, Gebze, 41400 Kocaeli, Turkey.
| | - Ayşe Gül Gürek
- Department of Chemistry, Faculty of Science, Gebze Technical University, P. O. Box 141, Gebze, 41400 Kocaeli, Turkey.
| | - Vefa Ahsen
- Department of Chemistry, Faculty of Science, Gebze Technical University, P. O. Box 141, Gebze, 41400 Kocaeli, Turkey.
| | - Yann Bretonnière
- Laboratoire de Chimie de l'ENS de Lyon, CNRS UMR 5182, Université Lyon I, ENS de Lyon, 46 allée d'Italie, 69364 Lyon cedex 07, France.
| | | | - Fernando Gotardo
- Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13560-970 São Carlos-SP, Brazil.
| | - Cleber Renato Mendonça
- Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13560-970 São Carlos-SP, Brazil.
| | - Catherine Hirel
- Department of Chemistry, Faculty of Science, Gebze Technical University, P. O. Box 141, Gebze, 41400 Kocaeli, Turkey.
| | - Leonardo De Boni
- Instituto de Física de São Carlos, Universidade de São Paulo, CP 369, 13560-970 São Carlos-SP, Brazil.
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Ledwaba M, Masilela N, Nyokong T, Antunes E. Surface modification of silica-coated gadolinium oxide nanoparticles with zinc tetracarboxyphenoxy phthalocyanine for the photodegradation of Orange G. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2015.03.023] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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17
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Physico-chemical properties of lutetium phthalocyanine complexes in solution and in solid polystyrene polymer fibers and their application in photoconversion of 4-nitrophenol. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcata.2012.02.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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He C, Shi G, Duan W, Wu Y, Chen Z, Song W, Zou R, Song Y. Third-order nonlinear optical properties of self-assembled thin films containing tetracarboxylic copper phthalocyanine. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424609001601] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Films with alternating layers containing anionic tetracarboxylic copper phthalocyanine [ CuPc(COONa)4 ] and cationic polydiallydimethylammonium chloride (PDDA) were fabricated by electrostatic self-assembled layer-by-layer (LBL) technique. The delicate structure of the film was characterized by a series of techniques. The third-order nonlinear optical properties of the film were measured by the Z-scan technique with laser duration of 4 ns and 21 ps at the wavelength of 532 nm. The film exhibited excellent nonlinear absorption and self-focusing effect. The second-order molecular hyperpolarizability γ value of the film was much larger than that of CuPc(COONa)4 aqueous solution under the irradiation of whether ns or ps pulses. A series of damage experiments of the film for the intense laser pulses were conducted to prove the reliability of the experimental results under the conditions.
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Affiliation(s)
- Chunying He
- School of Physical Science and Technology, Suzhou University, Suzhou 215006, China
- Key Laboratory of Functional Inorganic Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Guang Shi
- Department of Applied Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Wubiao Duan
- Key Laboratory of Functional Inorganic Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Yiqun Wu
- Key Laboratory of Functional Inorganic Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Zhimin Chen
- Key Laboratory of Functional Inorganic Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Weina Song
- Key Laboratory of Functional Inorganic Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Ruixue Zou
- Key Laboratory of Functional Inorganic Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Yinglin Song
- School of Physical Science and Technology, Suzhou University, Suzhou 215006, China
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He C, Wu Y, Shi G, Jiang L, Duan W, Song Y, Chang Q. Strong reverse saturable absorptive effect of an ultrathin film containing octacarboxylic cobalt phthalocyanine and polyethylenimine. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424607000576] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A novel nanoscopic composite film with alternating layers consisting of anionic octacarboxylic cobalt phthalocyanine [ CoPc ( COONa )8] and cationic polyethylenimine (PEI) has been fabricated by an electrostatic, layer-by-layer, self-assembly technique. UV-vis spectroscopy revealed consecutive regular deposition of CoPc ( COONa )8/ PEI onto a quartz slide. The film's delicate nanostructure was characterized by atomic force microscopy and small angle X-ray diffraction. Third-order nonlinear properties of the film performed using Z-scan measurements with 21 ps laser pulses at the incidence wavelength of 532 nm showed rather strong, nonlinear reverse saturable absorption.
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Affiliation(s)
- Chunying He
- Department of Applied Physics, Harbin Institute of Technology, Harbin 150001, China
- Laboratory of Functional Materials, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Yiqun Wu
- Laboratory of Functional Materials, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Guang Shi
- Department of Applied Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Li Jiang
- Department of Applied Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Wubiao Duan
- Laboratory of Functional Materials, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Yinglin Song
- Department of Applied Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Qing Chang
- Laboratory of Functional Materials, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
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Gonçalves PJ, Franzen PL, Correa DS, Almeida LM, Takara M, Ito AS, Zílio SC, Borissevitch IE. Effects of environment on the photophysical characteristics of mesotetrakis methylpyridiniumyl porphyrin (TMPyP). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:1532-1539. [PMID: 21641855 DOI: 10.1016/j.saa.2011.05.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2011] [Revised: 05/07/2011] [Accepted: 05/11/2011] [Indexed: 05/30/2023]
Abstract
Porphyrins are an important class of organic molecules, with interesting linear and nonlinear optical properties given mainly by their extended π-conjugation structure. Their photophysical properties can be greatly affected by the surrounding environment, which can be used to tune its final properties. Here we report on an experimental study of the photophysical properties of meso-tetrakis (methylpyridiniumyl) porphyrin (TMPyP) in aqueous and in several organic solvents and its interaction with micelles formed from negatively charged sodium dodecylsulphate (SDS), positively charged cetyl trimethyl ammonium bromide (CTAB) and neutral TRITON X-100. By using the Z-scan technique, flash-photolysis and time-resolved fluorescence techniques, we were able to evaluate the excited state dynamics of the TMPyP, and observed that the tetrapyrrole ring plays important role due to hydrogen bonds formation between nitrogen atom and water, while the side groups determine the porphyrin localization in non-aqueous micelle part.
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Affiliation(s)
- P J Gonçalves
- Instituto de Física, Universidade Federal de Goiás, Caixa Postal 131, 74001-970 Goiânia, GO, Brazil.
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21
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Photophysical characterization of dysprosium, erbium and lutetium phthalocyanines tetrasubstituted with phenoxy groups at non-peripheral positions. Polyhedron 2011. [DOI: 10.1016/j.poly.2011.03.030] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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Ballesteros B, deâ
laâ
Torre G, Shearer A, Hausmann A, Herranz M, Guldi D, Torres T. Lanthanide(III) Bis(phthalocyaninato)â[60]Fullerene Dyads: Synthesis, Characterization, and Photophysical Properties. Chemistry 2010; 16:114-25. [DOI: 10.1002/chem.200902200] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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De Boni L, Piovesan E, Gaffo L, Mendonça CR. Resonant Nonlinear Absorption in Zn-Phthalocyanines. J Phys Chem A 2008; 112:6803-7. [DOI: 10.1021/jp8049735] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L. De Boni
- Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970 São Carlos, SP, Brazil, and Centro de Ciências Exatas, Departamento de Química, Universidade Estadual de Maringá, Av. Colombo 5790, 87020-900 - Maringa, PR, Brazil
| | - E. Piovesan
- Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970 São Carlos, SP, Brazil, and Centro de Ciências Exatas, Departamento de Química, Universidade Estadual de Maringá, Av. Colombo 5790, 87020-900 - Maringa, PR, Brazil
| | - L. Gaffo
- Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970 São Carlos, SP, Brazil, and Centro de Ciências Exatas, Departamento de Química, Universidade Estadual de Maringá, Av. Colombo 5790, 87020-900 - Maringa, PR, Brazil
| | - C. R. Mendonça
- Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970 São Carlos, SP, Brazil, and Centro de Ciências Exatas, Departamento de Química, Universidade Estadual de Maringá, Av. Colombo 5790, 87020-900 - Maringa, PR, Brazil
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Gonçalves PJ, De Boni L, Borissevitch IE, Zílio SC. Excited state dynamics of meso-tetra(sulphonatophenyl) metalloporphyrins. J Phys Chem A 2008; 112:6522-6. [PMID: 18588273 DOI: 10.1021/jp800589j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The excited state dynamics of Zn2+, Fe3+, and Mn3+ meso-tetra(sulfonatophenyl) porphyrin complexes were investigated with a Z-scan technique at 532 nm using 70 ps and 120 fs single pulses and 200 ns pulse trains of a Q-switched and mode locked laser. We determined the characteristic interconversion and intersystem crossing times, quantum yields of the excited S1 state, and S1 --> Sn and T1 --> Tn transition cross-sections. The ground state cross-sections were obtained using UV-vis absorption spectroscopy, and a five-energy-level diagram was used to yield the photophysical parameters mentioned previously.
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Affiliation(s)
- P J Gonçalves
- Instituto de Física de São Carlos, Universidade de São Paulo, Caixa Postal 369, São Carlos, Brazil.
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