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Slusna L, Haizer L, Jane E, Bondarev D, Szocs V, Drzik M, Noskovicova E, Lorenc D, Velic D. Linear and Multi-Photon Fluorescence of Thiophene Based Copolymer with Electron-Accepting Side Chains. J Fluoresc 2018; 28:1333-1340. [PMID: 30218295 DOI: 10.1007/s10895-018-2295-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 09/03/2018] [Indexed: 11/29/2022]
Abstract
A novel copolymer poly(thiophene-2,5-diyl-2,5-di-n-octyloxycarbonyl-1,4-phenylene), denoted as P33, is introduced as potential material for photovoltaics, polymer light-emitting diodes, and/or organic transistors. P33 dissolved in chloroform is investigated by steady-state absorption, linear/non-linear fluorescence spectroscopies and time-resolved fluorescence spectroscopy. Molar extinction coefficient, fluorescence quantum yield, and singlet fluorescence lifetime of P33 are determined to be 18,315 M-1 cm-1, 0.4, and 810 ps, respectively. The P33 fluorescence fast components of decay times are 1.2 ps, 2.0 ps, and 0.5 ps for increasing wavelengths of 480 nm, 500 nm, and 520 nm, respectively. The fast component is attributed to a transport of nearly instantaneously formed excitons to localized states known as downhill energy transfer. Additionally multi-photon excited fluorescence is observed for pumping with wavelengths of 800 nm and 1200 nm. Two-photon absorption cross-section is determined to be 6.9 GM. These spectroscopic studies provide basic fluorescence characteristics of the novel thiophene copolymer P33.
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Affiliation(s)
- Lenka Slusna
- Faculty of Natural Sciences, Department of Physical and Theoretical Chemistry, Comenius University, Ilkovicova 6, 842 15, Bratislava 4, Slovakia.
| | - Ludovit Haizer
- International Laser Centre, Ilkovicova 3, 841 04, Bratislava 4, Slovakia
| | - Eduard Jane
- Institute of Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, 845 38, Bratislava, Slovakia
| | - Dmitrij Bondarev
- Polymer Institute, Slovak Academy of Sciences, Dubravska cesta 9, 845 41, Bratislava 45, Slovakia
| | - Vojtech Szocs
- International Laser Centre, Ilkovicova 3, 841 04, Bratislava 4, Slovakia
| | - Milan Drzik
- International Laser Centre, Ilkovicova 3, 841 04, Bratislava 4, Slovakia
| | - Eva Noskovicova
- Faculty of Natural Sciences, Department of Physical and Theoretical Chemistry, Comenius University, Ilkovicova 6, 842 15, Bratislava 4, Slovakia
| | - Dusan Lorenc
- Faculty of Natural Sciences, Department of Physical and Theoretical Chemistry, Comenius University, Ilkovicova 6, 842 15, Bratislava 4, Slovakia.,International Laser Centre, Ilkovicova 3, 841 04, Bratislava 4, Slovakia
| | - Dusan Velic
- Faculty of Natural Sciences, Department of Physical and Theoretical Chemistry, Comenius University, Ilkovicova 6, 842 15, Bratislava 4, Slovakia.,International Laser Centre, Ilkovicova 3, 841 04, Bratislava 4, Slovakia
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2
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Romero-Servin S, Lozano-Hernández LA, Maldonado JL, Carriles R, Ramos-Ortíz G, Pérez-Gutiérrez E, Scherf U, Zolotukhin MG. Light Emission Properties of a Cross-Conjugated Fluorene Polymer: Demonstration of Its Use in Electro-Luminescence and Lasing Devices. Polymers (Basel) 2016; 8:polym8020043. [PMID: 30979138 PMCID: PMC6432540 DOI: 10.3390/polym8020043] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 01/29/2016] [Accepted: 02/01/2016] [Indexed: 11/16/2022] Open
Abstract
Light emission properties of a fluorene cross-conjugated polymer (PF–1) based on the monomer 4,7-bis[2-(9,9-dimethyl)fluorenyl] benzo[1,2,5]thiadiazole are reported. This polymer exhibits solubility at high concentrations, good processability into thin solid films of good quality and a broad emission band with a fluorescence quantum yield of approximately 1. Based on these features, in this paper we implemented the use of PF–1 as an active layer in polymer light-emitting diodes (PLEDs) and as a laser gain medium in solution. To get insight on the conducting properties of PF–1, two different electron injectors, poly [(9,9-bis(3′-(N,N-dimethylamino) propyl)-2,7-fluorene)-alt-2,7-(9,9–dioctylfluorene)] (PFN) and lithium fluoride (LiF), were used in a simple PLED architecture. PLEDs with the PFN film were found to exhibit better performance with a maximum luminous efficiency of 40 cd/A, a turn-on voltage (Von) of approximately 4.5 V and a luminance maximum of 878 cd/m2 at 5.5 V, with a current density of 20 A/m2. For the lasing properties of PF–1, we found a lasing threshold of around 75 μJ and a tunability of 20 nm. These values are comparable with those of rhodamine 6G, a well-known laser dye.
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Affiliation(s)
| | | | - José-Luis Maldonado
- Centro de Investigaciones en Óptica A. P. 1-948, 37150 León Guanajuato, Mexico.
| | - Ramón Carriles
- Centro de Investigaciones en Óptica A. P. 1-948, 37150 León Guanajuato, Mexico.
| | - Gabriel Ramos-Ortíz
- Centro de Investigaciones en Óptica A. P. 1-948, 37150 León Guanajuato, Mexico.
| | | | - Ullrich Scherf
- Macromolecular Chemistry Group, Wuppertal University, Gauss-Str. 20, D-42097 Wuppertal, Germany.
| | - Mikhail G Zolotukhin
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, A. P. 70-360, 04510 México D. F., Mexico.
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Fan Y, Zhao J, Yan Q, Chen PR, Zhao D. Water-soluble triscyclometalated organoiridium complex: phosphorescent nanoparticle formation, nonlinear optics, and application for cell imaging. ACS APPLIED MATERIALS & INTERFACES 2014; 6:3122-3131. [PMID: 24517374 DOI: 10.1021/am500549y] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Two water-soluble triscyclometalated organoiridium complexes, 1 and 2, with polar side chains that form nanoparticles emitting bright-red phosphorescence in water were synthesized. The optimal emitting properties are related to both the triscyclometalated structure and nanoparticle-forming ability in aqueous solution. Nonlinear optical properties are also observed with the nanoparticles. Because of their proper cellular uptake in addition to high emission brightness and effective two-photon absorbing ability, cell imaging can be achieved with nanoparticles of 2 bearing quaternary ammonium side chains at ultra-low effective concentrations using NIR incident light via the multiphoton excitation phosphorescence process.
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Affiliation(s)
- Yuanpeng Fan
- Beijing National Laboratory for Molecular Sciences, Department of Applied Chemistry and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry, Peking University , Beijing 100871, China
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Sajan D, Devi TU, Safakath K, Philip R, Němec I, Karabacak M. Ultrafast optical nonlinearity, electronic absorption, vibrational spectra and solvent effect studies of ninhydrin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 109:331-343. [PMID: 23563600 DOI: 10.1016/j.saa.2013.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 02/07/2013] [Accepted: 03/02/2013] [Indexed: 06/02/2023]
Abstract
FT-IR, FT-Raman and UV-Vis spectra of the nonlinear optical molecule ninhydrin have been recorded and analyzed. The equilibrium geometry, bonding features, and harmonic vibrational wavenumbers have been investigated with the help of B3LYP density functional theory method. A detailed interpretation of the vibrational spectra is carried out with the aid of normal coordinate analysis following the scaled quantum mechanical force field methodology. Solvent effects have been calculated using time-dependent density functional theory in combination with the polarized continuum model. Natural bond orbital analysis confirms the occurrence of strong intermolecular hydrogen bonding in the molecule. Employing the open-aperture z-scan technique, nonlinear optical absorption of the sample has been studied in the ultrafast and short-pulse excitation regimes, using 100 fs and 5 ns laser pulses respectively. It is found that ninhydrin exhibits optical limiting for both excitations, indicating potential photonic applications.
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Affiliation(s)
- D Sajan
- Department of Physics, Bishop Moore College, Mavelikara, Alappuzha 690 110, Kerala, India.
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Sajan D, Vijayan N, Safakath K, Philip R, Karabacak M. Multi-photon absorption effect and intra-molecular charge transfer of donor-π-acceptor chromophore ethyl p-amino benzoate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 108:197-210. [PMID: 23474479 DOI: 10.1016/j.saa.2013.01.075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 01/22/2013] [Accepted: 01/30/2013] [Indexed: 06/01/2023]
Abstract
Fourier transform (FT)-Raman and infrared (IR) spectra of the nonlinear optical (NLO) material ethyl p-amino benzoate (EPAB) have been recorded and analyzed. The geometry and harmonic vibrational wavenumbers are calculated with the help of B3LYP density functional theory method. The detailed interpretation of the vibrational spectra has been carried out with the aid of normal coordinate analysis following the scaled quantum mechanical force field methodology. Stability of the molecule arising from hyperconjugative interactions leading to its NLO activity and charge delocalization have been analyzed using natural bond orbital (NBO) analysis. Employing the open-aperture z-scan technique, NLO absorption of the sample has been studied in two excitation regimes, using 100 fs and 5 ns laser pulses respectively. It is found that EPAB is a three-photon absorber for 100 fs pulses at the excitation wavelength of 800 nm. For ns pulses at 532 nm it exhibits strong optical limiting, indicating possible photonics applications.
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Affiliation(s)
- D Sajan
- Department of Physics, Bishop Moore College, Mavelikara, Alappuzha 690 110, Kerala, India.
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Shivashankar SM, Anantapadmanabha VK, Adhikari AV. Optical limiting materials: Synthesis, electrochemical and optical studies of new thiophene based conjugated polymers carrying 1,3,4-oxadiazole units. POLYM ENG SCI 2013. [DOI: 10.1002/pen.23362] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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7
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Liu J, Li G, Wang Y. Impact of electron acceptor on three-photon absorption cross-section of the fluorene derivatives. J Phys Chem A 2012; 116:7445-51. [PMID: 22765045 DOI: 10.1021/jp301657g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Small three-photon absorption (3PA) cross-section values of present nonlinear organic molecules limit their practical applications. Although electron donors and electron acceptors have a great effect on 3PA cross-section, little is known about how the strength and situation of electron acceptors influence the 3PA cross-section value of a compound. The present work reports 3PA effects of two fluorene derivatives with symmetric D-π-π(A)-π-D archetype, which are named as 2,7-bis(4-methoxyphenylacetylene)-9-fluorenone (FATT) and 2,7-bis(4-methoxyphenylacetylene)-9-thoine-fluorene (TSATL). Large 3PA cross-section and ideal 3PA-induced optical limiting effects have been found in the two fluorene derivatives. The two molecules both have a different electron acceptor on the fluorene core, by which the 3PA cross-section value for FATT is enhanced by nearly 3-fold compared with that for TSATL. The mechanism of this significant enhancement in 3PA cross-section has been investigated by density functional theory (DFT) and configuration interaction singles (CIS) method with use of 6-311+G basis set in combination with conductor polarizable continuum model (CPCM). The theoretical results show that increase of electronegative character of the electron acceptor on the core is responsible for the increase of 3PA cross-section values of the two molecules.
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Affiliation(s)
- Junhui Liu
- Institute for Computational Materials Science, Department of Physics, Henan University, Kaifeng 475001, Peoples Republic of China
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Li L, Yuan N, Wang P, Wu Y, Song Y, Chen Z, He C. Three-photon absorption properties of a novel symmetrical Carbazole derivative having terminal 1,10-phenanthroline rings via carbon-nitrogen (C = N) double bond. J PHYS ORG CHEM 2012. [DOI: 10.1002/poc.2937] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Liang Li
- Shanghai Institute of Optics and Fine Mechanics; Chinese Academy of Sciences; No. 390, Qinghe Road, Jiading District Shanghai 201800 P. R. China
| | - Ningning Yuan
- Key Lab of Functional Inorganic Material Chemistry (Heilongjiang University); Ministry of Education; Harbin 150080 P. R. China
| | - Ping Wang
- Key Lab of Functional Inorganic Material Chemistry (Heilongjiang University); Ministry of Education; Harbin 150080 P. R. China
| | - Yiqun Wu
- Shanghai Institute of Optics and Fine Mechanics; Chinese Academy of Sciences; No. 390, Qinghe Road, Jiading District Shanghai 201800 P. R. China
- Key Lab of Functional Inorganic Material Chemistry (Heilongjiang University); Ministry of Education; Harbin 150080 P. R. China
| | - Yinglin Song
- Department of Applied Physics; Harbin Institute of Technology; Harbin 150080 P. R. China
| | - Zhimin Chen
- Key Lab of Functional Inorganic Material Chemistry (Heilongjiang University); Ministry of Education; Harbin 150080 P. R. China
| | - Chunying He
- Key Lab of Functional Inorganic Material Chemistry (Heilongjiang University); Ministry of Education; Harbin 150080 P. R. China
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Sajan D, Vijayan N, Safakath K, Philip R, Joe IH. Intramolecular Charge Transfer and Z-Scan Studies of a Semiorganic Nonlinear Optical Material Sodium Acid Phthalate Hemihydrate: A Vibrational Spectroscopic Study. J Phys Chem A 2011; 115:8216-26. [DOI: 10.1021/jp201818y] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- D. Sajan
- Department of Physics, Bishop Moore College, Mavelikara, Alappuzha 690110, Kerala, India
- Centre for Molecular and Biophysics Research, Department of Physics, Mar Ivanios College, Thiruvananthapuram 695 015, Kerala, India
| | - N. Vijayan
- National Physical Laboratory, New Delhi 110 012, India
| | - K. Safakath
- Raman Research Institute, Bangalore 560080, India
| | - Reji Philip
- Raman Research Institute, Bangalore 560080, India
| | - I. Hubert Joe
- Centre for Molecular and Biophysics Research, Department of Physics, Mar Ivanios College, Thiruvananthapuram 695 015, Kerala, India
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Hegde PK, Vasudeva Adhikari A, Manjunatha MG, Suchand Sandeep CS, Philip R. Novel poly(3,4-dialkoxythiophene)s carrying 1,3,4-oxadiazolyl-biphenyl moieties: synthesis and nonlinear optical studies. POLYM INT 2010. [DOI: 10.1002/pi.2919] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Manjunatha MG, Adhikari AV, Hegde PK, Suchand Sandeep CS, Philip R. Synthesis and characterization of a new NLO-active donor–acceptor-type conjugated polymer derived from 3,4-diphenylthiophene. JOURNAL OF POLYMER RESEARCH 2009. [DOI: 10.1007/s10965-009-9336-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Belfield KD, Bondar MV, Yanez CO, Hernandez FE, Przhonska OV. Two-photon absorption and lasing properties of new fluorene derivatives. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b820950b] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Kumar RSS, Rao SV, Giribabu L, Rao DN. Femtosecond and nanosecond nonlinear optical properties of alkyl phthalocyanines studied using Z-scan technique. Chem Phys Lett 2007. [DOI: 10.1016/j.cplett.2007.09.028] [Citation(s) in RCA: 127] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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