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Legaspi CM, Peteanu LA, Yaron DJ. Modeling Field-Induced Quenching in Poly(p-phenylene vinylene) Polymers and Oligomers. J Phys Chem B 2015; 119:7625-34. [DOI: 10.1021/jp511544c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Christian M. Legaspi
- Carnegie Mellon University, 4400
Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Linda A. Peteanu
- Carnegie Mellon University, 4400
Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - David J. Yaron
- Carnegie Mellon University, 4400
Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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Tian Z, Yu J, Wang X, Groff LC, Grimland JL, McNeill JD. Conjugated Polymer Nanoparticles Incorporating Antifade Additives for Improved Brightness and Photostability. J Phys Chem B 2012; 117:4517-20. [DOI: 10.1021/jp3086254] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhiyuan Tian
- Department of Chemistry, Clemson University, Clemson, South Carolina
29634, United States
- School of Chemistry
and Chemical Engineering, University of Chinese Academy of Sciences (UCAS), Beijing 100049, P. R. China
| | - Jiangbo Yu
- Department of Chemistry, Clemson University, Clemson, South Carolina
29634, United States
| | - Xiaoli Wang
- Department of Chemistry, Clemson University, Clemson, South Carolina
29634, United States
| | - Louis C. Groff
- Department of Chemistry, Clemson University, Clemson, South Carolina
29634, United States
| | - Jennifer L. Grimland
- Department of Chemistry, Clemson University, Clemson, South Carolina
29634, United States
| | - Jason D. McNeill
- Department of Chemistry, Clemson University, Clemson, South Carolina
29634, United States
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Collini E, Todescato F, Ferrante C, Bozio R, Scholes GD. Photophysics and dynamics of surface plasmon polaritons-mediated energy transfer in the presence of an applied electric field. J Am Chem Soc 2012; 134:10061-70. [PMID: 22616877 DOI: 10.1021/ja3014314] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The possibility to transfer energy between molecular excitons across a metal film up to 150 nm thick represents a very attractive solution to control and improve the performances of thin optoeletronic devices. This process involves the presence of coupled surface plasmon polaritons (SPPs) at the two dielectric-metal interfaces, capable of mediating the interactions between donor and acceptor, located on opposite sides of the metal film. In this Article, the photophysics and the dynamics of an efficient SPP-mediated energy transfer between a suitable dye and a conjugated polymer is characterized by means of steady-state and time-resolved photoluminescence techniques. The process is studied in model multilayer structures (donor/metal/acceptor) as well as in electrically pumped heterostructures (donor/metal cathode/acceptor/anode), to verify the effects of applied electric fields on the efficiency and the dynamics of SPP-mediated energy transfer. A striking enhancement of the overall luminescence was recorded in a particular range of applied bias, suggesting the presence of cooperative effects between optical and electrical stimulations.
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Affiliation(s)
- Elisabetta Collini
- Department of Chemical Sciences and INSTM, University of Padova, Via Marzolo 1, I-35131 Padova, Italy.
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Hu Z, Gesquiere AJ. Charge Trapping and Storage by Composite P3HT/PC60BM Nanoparticles Investigated by Fluorescence-Voltage/Single Particle Spectroscopy. J Am Chem Soc 2011; 133:20850-6. [DOI: 10.1021/ja207244z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Zhongjian Hu
- NanoScience Technology Center, Department of Chemistry and CREOL, The College of Optics and Photonics, University of Central Florida, 12424 Research Parkway Suite 400, Orlando, Florida 32826, United States
| | - Andre J. Gesquiere
- NanoScience Technology Center, Department of Chemistry and CREOL, The College of Optics and Photonics, University of Central Florida, 12424 Research Parkway Suite 400, Orlando, Florida 32826, United States
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A novel ionic polymer metal ZnO composite (IPMZC). SENSORS 2011; 11:4674-87. [PMID: 22163869 PMCID: PMC3231386 DOI: 10.3390/s110504674] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Revised: 04/06/2011] [Accepted: 04/26/2011] [Indexed: 11/23/2022]
Abstract
The presented research introduces a new Ionic Polymer-Metal-ZnO Composite (IPMZC) demonstrating photoluminescence (PL)-quenching on mechanical bending or application of an electric field. The newly fabricated IPMZC integrates the optical properties of ZnO and the electroactive nature of Ionic Polymer Metal Composites (IPMC) to enable a non-contact read-out of IPMC response. The electro-mechano-optical response of the IPMZC was measured by observing the PL spectra under mechanical bending and electrical regimes. The working range was measured to be 375–475 nm. It was noted that the PL-quenching increased proportionally with the increase in curvature and applied field at 384 and 468 nm. The maximum quenching of 53.4% was achieved with the membrane curvature of 78.74/m and 3.01% when electric field (12.5 × 103 V/m) is applied. Coating IPMC with crystalline ZnO was observed to improve IPMC transduction.
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Tian Z, Yu J, Wu C, Szymanski C, McNeill J. Amplified energy transfer in conjugated polymer nanoparticle tags and sensors. NANOSCALE 2010; 2:1999-2011. [PMID: 20697652 DOI: 10.1039/c0nr00322k] [Citation(s) in RCA: 138] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Nanoparticles primarily consisting of π-conjugated polymers have emerged as extraordinarily bright fluorescent tags with potential applications in biological imaging and sensing. As fluorescent tags, conjugated polymer nanoparticles possess a number of advantageous properties, such as small particle size, extraordinary fluorescence brightness, excellent photostability, and high emission rate. Exciton diffusion occurring in the nanoparticles results in amplified energy transfer, doubling the energy transfer efficiency in some cases. Amplified energy transfer has been exploited to obtain highly red-shifted emission, oxygen-sensing nanoparticles, and fluorescence photoswitching. Additional observed phenomena are attributable to amplified energy transfer in conjugated polymers, including superquenching by metal nanoparticles, and fluorescence modulation by hole polarons. This feature article presents an overview of recent investigations of optical properties and energy transfer phenomena of this relatively novel type of fluorescent nanoparticle with a viewpoint towards demanding fluorescence-based imaging and sensing applications.
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Affiliation(s)
- Zhiyuan Tian
- Department of Chemistry, Clemson University, Clemson, SC 29634, USA
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Moscatelli A, Livingston K, So WY, Lee SJ, Scherf U, Wildeman J, Peteanu LA. Electric-field-induced fluorescence quenching in polyfluorene, ladder-type polymers, and MEH-PPV: evidence for field effects on internal conversion rates in the low concentration limit. J Phys Chem B 2010; 114:14430-9. [PMID: 20707332 DOI: 10.1021/jp101307p] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Electric field-induced fluorescence quenching has been measured for a series of conjugated polymers with applications in organic light-emitting diodes. Electrofluorescence measurements on isolated chains in a glassy matrix at 77 K show that the quenching efficiency for poly[2-methoxy-5-(2-ethylhexyloxy)-p-phenylenevinylene] (MEH-PPV) is an order of magnitude larger than that for either a ladder-type polymer (MeLPPP) or polyfluorene (PFH). This effect is explained in terms of the relatively high probability of field-enhanced internal conversion deactivation in MEH-PPV relative to either MeLPPP or PFH. These data, obtained under dilute sample conditions such that chain-chain interactions are minimal, are contrasted with the much higher quenching efficiencies observed in the corresponding polymer films, and several explanations for the differences are considered. In addition, the values of the change in dipole moment and change in polarizability on excitation (|Δμ| and tr(Δα), respectively) are reported, and trends in these values as a function of molecular structure and chain length are discussed.
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Affiliation(s)
- Alberto Moscatelli
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, USA
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Affiliation(s)
- Tracey M Clarke
- Centre for Plastic Electronics, Department of Chemistry, Imperial College London, London, SW7 2AZ, United Kingdom
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Smith TM, Hazelton N, Peteanu LA, Wildeman J. Electrofluorescence of MEH-PPV and Its Oligomers: Evidence for Field-Induced Fluorescence Quenching of Single Chains. J Phys Chem B 2006; 110:7732-42. [PMID: 16610868 DOI: 10.1021/jp054264p] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Electrofluorescence (Stark) spectroscopy has been used to measure the trace of the change in polarizability (trDeltaalpha) and the absolute value of the change in dipole moment (|Deltamu|) of the electroluminescent polymer poly[2-methoxy,5-(2'-ethyl-hexoxy)-1,4-phenylene vinylene] (MEH-PPV) and several model oligomers in solvent glass matrixes. From electrofluorescence, the measured values of trDeltaalpha increase from 500 +/- 60 A(3) in OPPV-5 to 2000 +/- 200 A(3) in MEH-PPV. The good agreement found between these values and those measured by electroabsorption suggests the electronic properties do not differ strongly between absorption and emission, in contrast to earlier predictions. Evidence of electric-field-induced fluorescence quenching of MEH-PPV in dilute solvent glasses was found. When normalized to the square of the applied electric field, the magnitude of quench is comparable to that reported in the literature for thin films of MEH-PPV. In addition, fluorescence quenching was also observed in the oligomers with a magnitude that increases with increasing chain length. By using the values of trDeltaalpha measured by electrofluorescence, a model is developed to qualitatively explain the chain length dependence to the fluorescence quench observed in the oligomers as a function of exciton delocalization along the oligomer backbone. Various explanations for the origin of this quenching behavior and its chain length dependence are considered.
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Affiliation(s)
- Timothy M Smith
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213, USA
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Ofir Y, Zelichenok A, Yitzchaik S. 1,4;5,8-naphthalene-tetracarboxylic diimide derivatives as model compounds for molecular layer epitaxy. ACTA ACUST UNITED AC 2006. [DOI: 10.1039/b601258b] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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McNeill JD, O'Connor DB, Adams DM, Barbara PF, Kämmer SB. Field-Induced Photoluminescence Modulation of MEH−PPV under Near-Field Optical Excitation. J Phys Chem B 2000. [DOI: 10.1021/jp002591l] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jason D. McNeill
- Department of Chemistry and Biochemistry, and The Center for Nano- and Molecular Science and Technology, University of Texas, Austin, Texas 78712
| | - Donald B. O'Connor
- Department of Chemistry and Biochemistry, and The Center for Nano- and Molecular Science and Technology, University of Texas, Austin, Texas 78712
| | - David M. Adams
- Department of Chemistry and Biochemistry, and The Center for Nano- and Molecular Science and Technology, University of Texas, Austin, Texas 78712
| | - Paul F. Barbara
- Department of Chemistry and Biochemistry, and The Center for Nano- and Molecular Science and Technology, University of Texas, Austin, Texas 78712
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Adams DM, Kerimo J, Liu CY, Bard AJ, Barbara PF. Electric Field Modulated Near-Field Photo-Luminescence of Organic Thin Films. J Phys Chem B 2000. [DOI: 10.1021/jp994457a] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David M. Adams
- Department of Chemistry, University of Texas at Austin, Austin Texas 78712
| | - Josef Kerimo
- Department of Chemistry, University of Texas at Austin, Austin Texas 78712
| | - Chong-Yang Liu
- Department of Chemistry, University of Texas at Austin, Austin Texas 78712
| | - Allen J. Bard
- Department of Chemistry, University of Texas at Austin, Austin Texas 78712
| | - Paul F. Barbara
- Department of Chemistry, University of Texas at Austin, Austin Texas 78712
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14
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McNeill JD, O’Connor DB, Barbara PF. Imaging organic device function with near-field scanning optical microscopy. J Chem Phys 2000. [DOI: 10.1063/1.481386] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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15
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Burin AL, Ratner MA. Exciton Migration and Cathode Quenching in Organic Light Emitting Diodes. J Phys Chem A 2000. [DOI: 10.1021/jp994162x] [Citation(s) in RCA: 92] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexander L. Burin
- Department of Chemistry and Materials Research Center, Northwestern University, Evanston, Illinois 60208
| | - Mark A. Ratner
- Department of Chemistry and Materials Research Center, Northwestern University, Evanston, Illinois 60208
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Pfeffer N, Neher D, Remmers M, Poga C, Hopmeier M, Mahrt R. Electric field-induced fluorescence quenching and transient fluorescence studies in poly(p-terphenylene vinylene) related polymers. Chem Phys 1998. [DOI: 10.1016/s0301-0104(97)00196-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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De Jong M, Vissenberg M. Theory of luminescence quenching and photobleaching in conjugated polymers. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s0165-5817(98)00020-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Barth S, Bässler H, Wehrmeister T, Müllen K. Photoconduction in oligo-para-phenylenevinylene films. J Chem Phys 1997. [DOI: 10.1063/1.473028] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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20
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Vissenberg MC. Theory of Exciton Migration and Field-Induced Dissociation in Conjugated Polymers. PHYSICAL REVIEW LETTERS 1996; 77:4820-4823. [PMID: 10062639 DOI: 10.1103/physrevlett.77.4820] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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