1
|
Nguyen TH, Le KM, Nguyen LH, Truong TN. Machine Learning-Based Quantitative Structure-Property Relationships for the Electronic Properties of Cyano Polycyclic Aromatic Hydrocarbons. ACS OMEGA 2023; 8:464-472. [PMID: 36643419 PMCID: PMC9835191 DOI: 10.1021/acsomega.2c05159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 11/15/2022] [Indexed: 06/17/2023]
Abstract
In this study, quantitative structure-property relationships (QSPR) based on a machine learning (ML) methodology and the truncated degree of π-orbital overlap (DPO) to predict the electronic properties, namely, the bandgaps, electron affinities, and ionization potentials of the cyano polycyclic aromatic hydrocarbon (CN-PAH) chemical class were developed. The level of theory B3LYP/6-31+G(d) of density functional theory (DFT) was used to calculate a total of 926 data points for the development of the QSPR model. To include the substituents effects, a new descriptor was added to the DPO model. Consequently, the new ML-DPO model yields excellent linear correlations to predict the desired electronic properties with high accuracy to within 0.2 eV for all multi-CN-substituted PAHs and 0.1 eV for the mono-CN-substituted PAH subclass.
Collapse
Affiliation(s)
- Tuan H. Nguyen
- Institute
for Computational Science and Technology, Ho Chi Minh City700000, Vietnam
- Faculty
of Chemical Engineering, Ho Chi Minh City
University of Technology, 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City7000000, Vietnam
| | - Khang M. Le
- Faculty
of Chemistry, VNUHCM-University of Science, 227 Nguyen Van Cu Street, Ho Chi Minh City700000, Vietnam
| | - Lam H. Nguyen
- Institute
for Computational Science and Technology, Ho Chi Minh City700000, Vietnam
- Faculty
of Chemistry, VNUHCM-University of Science, 227 Nguyen Van Cu Street, Ho Chi Minh City700000, Vietnam
| | - Thanh N. Truong
- Department
of Chemistry, University of Utah, Salt Lake City, Utah84112, United States
| |
Collapse
|
2
|
Tanudjaja A, Higuchi M, Imai T, Matsumura Y, Hifumi R, Inagi S, Tomita I. Synthesis and optoelectronic properties of air-stable π-conjugated polymers containing both thiophene-2,5-diyl and fused titanacycle units. Polym Chem 2022. [DOI: 10.1039/d2py00452f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
π-Conjugated poly(arylene ethynylene)s containing both thiophene-2,5-diyl and fused metallacycles units in their alternating sequence were synthesized and their optoelectronic features were studied by the UV-vis spectra.
Collapse
Affiliation(s)
- Alvin Tanudjaja
- Department of Chemical Science and Engineering, Graduate School of Materials and Chemical Technology, Tokyo Institute of Technology, Japan
| | - Makoto Higuchi
- Department of Chemical Science and Engineering, Graduate School of Materials and Chemical Technology, Tokyo Institute of Technology, Japan
| | - Tomohiro Imai
- Department of Chemical Science and Engineering, Graduate School of Materials and Chemical Technology, Tokyo Institute of Technology, Japan
| | - Yoshimasa Matsumura
- Department of Chemical Science and Engineering, Graduate School of Materials and Chemical Technology, Tokyo Institute of Technology, Japan
| | - Ryoyu Hifumi
- Department of Chemical Science and Engineering, Graduate School of Materials and Chemical Technology, Tokyo Institute of Technology, Japan
| | - Shinsuke Inagi
- Department of Chemical Science and Engineering, Graduate School of Materials and Chemical Technology, Tokyo Institute of Technology, Japan
| | - Ikuyoshi Tomita
- Department of Chemical Science and Engineering, Graduate School of Materials and Chemical Technology, Tokyo Institute of Technology, Japan
| |
Collapse
|
3
|
Lassi E, Squeo BM, Sorrentino R, Scavia G, Mrakic-Sposta S, Gussoni M, Vercelli B, Galeotti F, Pasini M, Luzzati S. Sulfonate-Conjugated Polyelectrolytes as Anode Interfacial Layers in Inverted Organic Solar Cells. Molecules 2021; 26:molecules26030763. [PMID: 33540730 PMCID: PMC7867262 DOI: 10.3390/molecules26030763] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/19/2021] [Accepted: 01/27/2021] [Indexed: 11/16/2022] Open
Abstract
Conjugated polymers with ionic pendant groups (CPEs) are receiving increasing attention as solution-processed interfacial materials for organic solar cells (OSCs). Various anionic CPEs have been successfully used, on top of ITO (Indium Tin Oxide) electrodes, as solution-processed anode interlayers (AILs) for conventional devices with direct geometry. However, the development of CPE AILs for OSC devices with inverted geometry is an important topic that still needs to be addressed. Here, we have designed three anionic CPEs bearing alkyl-potassium-sulfonate side chains. Their functional behavior as anode interlayers has been investigated in P3HT:PC61BM (poly(3-hexylthiophene): [6,6]-phenyl C61 butyric acid methyl ester) devices with an inverted geometry, using a hole collecting silver electrode evaporated on top. Our results reveal that to obtain effective anode modification, the CPEs' conjugated backbone has to be tailored to grant self-doping and to have a good energy-level match with the photoactive layer. Furthermore, the sulfonate moieties not only ensure the solubility in polar orthogonal solvents, induce self-doping via a right choice of the conjugated backbone, but also play a role in the gaining of hole selectivity of the top silver electrode.
Collapse
Affiliation(s)
- Elisa Lassi
- Institute of Chemical Sciences and Technologies “G. Natta ”-SCITEC, National Research Council, CNR-SCITEC, via Corti 12, 20133 Milan, Italy; (E.L.); (B.M.S.); (R.S.); (G.S.); (M.G.); (F.G.)
| | - Benedetta Maria Squeo
- Institute of Chemical Sciences and Technologies “G. Natta ”-SCITEC, National Research Council, CNR-SCITEC, via Corti 12, 20133 Milan, Italy; (E.L.); (B.M.S.); (R.S.); (G.S.); (M.G.); (F.G.)
| | - Roberto Sorrentino
- Institute of Chemical Sciences and Technologies “G. Natta ”-SCITEC, National Research Council, CNR-SCITEC, via Corti 12, 20133 Milan, Italy; (E.L.); (B.M.S.); (R.S.); (G.S.); (M.G.); (F.G.)
| | - Guido Scavia
- Institute of Chemical Sciences and Technologies “G. Natta ”-SCITEC, National Research Council, CNR-SCITEC, via Corti 12, 20133 Milan, Italy; (E.L.); (B.M.S.); (R.S.); (G.S.); (M.G.); (F.G.)
| | - Simona Mrakic-Sposta
- Institute of Clinical Physiology, National Research Council, CNR-IFC, Piazza Ospedale Maggiore 3, 20162 Milan, Italy;
| | - Maristella Gussoni
- Institute of Chemical Sciences and Technologies “G. Natta ”-SCITEC, National Research Council, CNR-SCITEC, via Corti 12, 20133 Milan, Italy; (E.L.); (B.M.S.); (R.S.); (G.S.); (M.G.); (F.G.)
| | - Barbara Vercelli
- Institute of Condensed Matter Chemistry and Technologies for Energy, National Research Council, CNR-ICMATE, Via Roberto Cozzi 53, 20125 Milan, Italy;
| | - Francesco Galeotti
- Institute of Chemical Sciences and Technologies “G. Natta ”-SCITEC, National Research Council, CNR-SCITEC, via Corti 12, 20133 Milan, Italy; (E.L.); (B.M.S.); (R.S.); (G.S.); (M.G.); (F.G.)
| | - Mariacecilia Pasini
- Institute of Chemical Sciences and Technologies “G. Natta ”-SCITEC, National Research Council, CNR-SCITEC, via Corti 12, 20133 Milan, Italy; (E.L.); (B.M.S.); (R.S.); (G.S.); (M.G.); (F.G.)
- Correspondence: (M.P.); (S.L.)
| | - Silvia Luzzati
- Institute of Chemical Sciences and Technologies “G. Natta ”-SCITEC, National Research Council, CNR-SCITEC, via Corti 12, 20133 Milan, Italy; (E.L.); (B.M.S.); (R.S.); (G.S.); (M.G.); (F.G.)
- Correspondence: (M.P.); (S.L.)
| |
Collapse
|
4
|
Prosa M, Benvenuti E, Pasini M, Giovanella U, Bolognesi M, Meazza L, Galeotti F, Muccini M, Toffanin S. Organic Light-Emitting Transistors with Simultaneous Enhancement of Optical Power and External Quantum Efficiency via Conjugated Polar Polymer Interlayers. ACS APPLIED MATERIALS & INTERFACES 2018; 10:25580-25588. [PMID: 29984985 DOI: 10.1021/acsami.8b06466] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Organic light-emitting transistors (OLETs) show the fascinating combination of electrical switching characteristics and light generation capability. However, to ensure an effective device operation, an efficient injection of charges into the emissive layer is required. The introduction of solution-processed conjugated polyelectrolyte (CPE) films at the emissive layer/electrode interface represents a promising strategy to improve the electron injection process by dipole formation. However, their use in optoelectronic devices also involves some limitations because of the ionic nature of CPEs. In this context, neutral conjugated polar polymers (CPPs) represent a valid alternative to CPEs because the conjugated backbones of CPPs are functionalized with polar nonionic side groups, thus avoiding ion-dependent drawbacks. By introducing a layer of polyfluorene-containing phosphonate groups underneath the metal electrodes, we here demonstrate a substantial improvement of the electron injection properties into the OLET-emissive layer and, accordingly, a more than 2-fold increased light power and a 5 times higher external quantum efficiency of p-type OLETs in comparison with reference devices without any interlayer. The great benefit of using a transparent glass substrate allowed to selectively investigate the morphological and photoluminescent characteristics of both CPE- and CPP-buried interlayers within complete OLETs by means of an optical scanning probe technique. This, together with a thorough optoelectronic characterization of the figures of merit of working light-emitting devices, allowed to disclose the origin of the improved optical performance of CPP-based devices as well as the operation mechanisms of the investigated interlayer in the corresponding OLETs.
Collapse
Affiliation(s)
- Mario Prosa
- Consiglio Nazionale delle Ricerche (CNR)-Istituto per lo Studio dei Materiali Nanostrutturati (ISMN) , Via P. Gobetti 101 , 40129 Bologna , Italy
| | - Emilia Benvenuti
- Consiglio Nazionale delle Ricerche (CNR)-Istituto per lo Studio dei Materiali Nanostrutturati (ISMN) , Via P. Gobetti 101 , 40129 Bologna , Italy
| | - Mariacecilia Pasini
- Consiglio Nazionale delle Ricerche (CNR)-Istituto per lo Studio delle Macromolecole (ISMac) , Via Bassini, 15 , 20133 Milano , Italy
| | - Umberto Giovanella
- Consiglio Nazionale delle Ricerche (CNR)-Istituto per lo Studio delle Macromolecole (ISMac) , Via Bassini, 15 , 20133 Milano , Italy
| | - Margherita Bolognesi
- Consiglio Nazionale delle Ricerche (CNR)-Istituto per lo Studio dei Materiali Nanostrutturati (ISMN) , Via P. Gobetti 101 , 40129 Bologna , Italy
| | - Lorenzo Meazza
- Consiglio Nazionale delle Ricerche (CNR)-Istituto per lo Studio delle Macromolecole (ISMac) , Via Bassini, 15 , 20133 Milano , Italy
| | - Francesco Galeotti
- Consiglio Nazionale delle Ricerche (CNR)-Istituto per lo Studio delle Macromolecole (ISMac) , Via Bassini, 15 , 20133 Milano , Italy
| | - Michele Muccini
- Consiglio Nazionale delle Ricerche (CNR)-Istituto per lo Studio dei Materiali Nanostrutturati (ISMN) , Via P. Gobetti 101 , 40129 Bologna , Italy
| | - Stefano Toffanin
- Consiglio Nazionale delle Ricerche (CNR)-Istituto per lo Studio dei Materiali Nanostrutturati (ISMN) , Via P. Gobetti 101 , 40129 Bologna , Italy
| |
Collapse
|
5
|
Branched oligophenylenes containing octylphenotiazine and dioctylfluorene groups and phen-1,3,5-triyl branching center. Russ Chem Bull 2018. [DOI: 10.1007/s11172-018-2236-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
6
|
Giovanella U, Pasini M, Lorenzon M, Galeotti F, Lucchi C, Meinardi F, Luzzati S, Dubertret B, Brovelli S. Efficient Solution-Processed Nanoplatelet-Based Light-Emitting Diodes with High Operational Stability in Air. NANO LETTERS 2018; 18:3441-3448. [PMID: 29722262 DOI: 10.1021/acs.nanolett.8b00456] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Colloidal nanoplatelets (NPLs), owing to their efficient and narrow-band luminescence, are considered as promising candidates for solution-processable light-emitting diodes (LEDs) with ultrahigh color purity. To date, however, the record efficiencies of NPL-LEDs are significantly lower than those of more-investigated devices based on spherical nanocrystals. This is particularly true for red-emitting NPL-LEDs, the best-reported external quantum efficiency (EQE) of which is limited to 0.63% (EQE = 5% for green NPL-LEDs). Here, we address this issue by introducing a charge-regulating layer of a polar and polyelectrolytic polymer specifically engineered with complementary trimethylammonium and phosphonate functionalities that provide high solubility in orthogonal polar media with respect to the NPL active layer, compatibility with the metal cathode, and the ability to control electron injection through the formation of a polarized interface under bias. Through this synergic approach, we achieve EQE = 5.73% at 658 nm (color saturation 98%) in completely solution processed LEDs. Remarkably, exposure to air increases the EQE to 8.39%, exceeding the best reports of red NPL-LEDs by over 1 order of magnitude and setting a new global record for quantum-dot LEDs of any color embedding solution-deposited organic interlayers. Considering the emission quantum yield of the NPLs (40 ± 5%), this value corresponds to a near-unity internal quantum efficiency. Notably, our devices show exceptional operational stability for over 5 h of continuous drive in air with no encapsulation, thus confirming the potential of NPLs for efficient, high-stability, saturated LEDs.
Collapse
Affiliation(s)
- Umberto Giovanella
- Istituto per lo Studio delle Macromolecole , Consiglio Nazionale delle Ricerche (ISMac-CNR) , Via Bassini 15 , 20133 Milano , Italy
| | - Mariacecilia Pasini
- Istituto per lo Studio delle Macromolecole , Consiglio Nazionale delle Ricerche (ISMac-CNR) , Via Bassini 15 , 20133 Milano , Italy
| | - Monica Lorenzon
- Dipartimento di Scienza dei Materiali , Università degli Studi di Milano-Bicocca , via Cozzi 55 , I-20125 Milano , Italy
| | - Francesco Galeotti
- Istituto per lo Studio delle Macromolecole , Consiglio Nazionale delle Ricerche (ISMac-CNR) , Via Bassini 15 , 20133 Milano , Italy
| | - Claudio Lucchi
- Dipartimento di Scienza dei Materiali , Università degli Studi di Milano-Bicocca , via Cozzi 55 , I-20125 Milano , Italy
| | - Francesco Meinardi
- Dipartimento di Scienza dei Materiali , Università degli Studi di Milano-Bicocca , via Cozzi 55 , I-20125 Milano , Italy
| | - Silvia Luzzati
- Istituto per lo Studio delle Macromolecole , Consiglio Nazionale delle Ricerche (ISMac-CNR) , Via Bassini 15 , 20133 Milano , Italy
| | - Benoit Dubertret
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI-ParisTech , PSL Research University, Sorbonne Université UPMC Université Paris 06, CNRS , 10 rue Vauquelin , 75005 Paris , France
| | - Sergio Brovelli
- Dipartimento di Scienza dei Materiali , Università degli Studi di Milano-Bicocca , via Cozzi 55 , I-20125 Milano , Italy
| |
Collapse
|
7
|
Ramani P, Cauteruccio S, Licandro E, Baldoli C. Synthesis of luminescent 2,3-diphenylmaleimide-labelled peptide nucleic acid oligomers. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
8
|
Kim K, Inagaki Y, Kanehashi S, Ogino K. Incorporation of benzothiadiazole moiety at junction of polyfluorene-polytriarylamime block copolymer for effective color tuning in organic light emitting diode. J Appl Polym Sci 2017. [DOI: 10.1002/app.45393] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kyusun Kim
- Graduate School of Bio-Applications and Systems Engineering; Tokyo University of Agriculture and Technology; 2-24-16 Nakacho Koganei-shi Tokyo 184-8588 Japan
| | - Yohei Inagaki
- Graduate School of Bio-Applications and Systems Engineering; Tokyo University of Agriculture and Technology; 2-24-16 Nakacho Koganei-shi Tokyo 184-8588 Japan
| | - Shinji Kanehashi
- Graduate School of Bio-Applications and Systems Engineering; Tokyo University of Agriculture and Technology; 2-24-16 Nakacho Koganei-shi Tokyo 184-8588 Japan
| | - Kenji Ogino
- Graduate School of Bio-Applications and Systems Engineering; Tokyo University of Agriculture and Technology; 2-24-16 Nakacho Koganei-shi Tokyo 184-8588 Japan
| |
Collapse
|
9
|
Guo W, Zhu X, Wang Z, Pei M, Ding F. Novel Chiral Conducting Poly[ N-(9-Fluorenylmethoxycarbonyl)- L-Alanine] (PN9FA) with Good Fluorescence Properties via Electropolymerization. J MACROMOL SCI B 2016. [DOI: 10.1080/00222348.2016.1168559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
10
|
Chen L, Wang K, Mahmoud SM, Li Y, Huang H, Huang W, Xu J, Dun C, Carroll D, Pietrangelo A. Effects of replacing thiophene with 5,5-dimethylcyclopentadiene in alternating poly(phenylene), poly(3-hexylthiophene), and poly(fluorene) copolymer derivatives. Polym Chem 2015. [DOI: 10.1039/c5py01247c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Replacing alternating thiophene repeat units with 5,5-dimethylcyclopentadiene alternatives influences the physicochemical properties of π-conjugated copolymers.
Collapse
Affiliation(s)
- L. Chen
- Department of Chemistry
- Rutgers University-Newark
- Newark
- USA
| | - K. Wang
- Department of Chemistry
- Rutgers University-Newark
- Newark
- USA
| | - S. M. Mahmoud
- Department of Chemistry
- Rutgers University-Newark
- Newark
- USA
| | - Y. Li
- Center for Nanotechnology and Molecular Materials
- Department of Physics
- Winston-Salem
- USA
| | - H. Huang
- Center for Nanotechnology and Molecular Materials
- Department of Physics
- Winston-Salem
- USA
| | - W. Huang
- Center for Nanotechnology and Molecular Materials
- Department of Physics
- Winston-Salem
- USA
| | - J. Xu
- Center for Nanotechnology and Molecular Materials
- Department of Physics
- Winston-Salem
- USA
| | - C. Dun
- Center for Nanotechnology and Molecular Materials
- Department of Physics
- Winston-Salem
- USA
| | - D. Carroll
- Center for Nanotechnology and Molecular Materials
- Department of Physics
- Winston-Salem
- USA
| | - A. Pietrangelo
- Department of Chemistry
- Rutgers University-Newark
- Newark
- USA
| |
Collapse
|
11
|
Xiong Y, Qiao X, Li H. Nitrile-substituted thienyl and phenyl units as building blocks for high performance n-type polymer semiconductors. Polym Chem 2015. [DOI: 10.1039/c5py00804b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conjugated polymers containing nitrile-substituted thienyl and phenyl units displayed high electron mobility under ambient conditions.
Collapse
Affiliation(s)
- Yu Xiong
- Key Laboratory of synthetic and self-assembly chemistry for organic functional molecules
- Shanghai Institute of Organic Chemistry
- CAS
- Shanghai
- China
| | - Xiaolan Qiao
- Key Laboratory of synthetic and self-assembly chemistry for organic functional molecules
- Shanghai Institute of Organic Chemistry
- CAS
- Shanghai
- China
| | - Hongxiang Li
- Key Laboratory of synthetic and self-assembly chemistry for organic functional molecules
- Shanghai Institute of Organic Chemistry
- CAS
- Shanghai
- China
| |
Collapse
|
12
|
Strauβ V, Gallego A, Torre GDL, Chamberlain TW, Khlobystov AN, Torres T, Guldi DM. Creating and testing carbon interfaces - integrating oligomeric phthalocyanines onto single walled carbon nanotubes. Faraday Discuss 2014; 172:61-79. [PMID: 25426830 DOI: 10.1039/c4fd00063c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Two oligomers, that is, para-phenylenevinylene with either pendant Pd(ii)Pc or Zn(ii)Pc units, have been synthesized and their interactions with SWCNTs and peapods - C60@SWCNT - have been probed by complementary spectroscopy and microscopy. Spectroscopy assisted mainly in shedding light onto electronic interactions in the ground and excited state, while microscopy enabled insights into the degree of individualizing SWCNTs/C60@SWCNTs and their stabilization.
Collapse
Affiliation(s)
- Volker Strauβ
- Department of Chemistry and Pharmacy Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander-Universitaet Erlangen-Nuernberg, Egerlandstr. 3, 91058, Erlangen, Germany.
| | | | | | | | | | | | | |
Collapse
|
13
|
Wei S, Xia J, Dell EJ, Jiang Y, Song R, Lee H, Rodenbough P, Briseno AL, Campos LM. Bandgap Engineering through Controlled Oxidation of Polythiophenes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201309398] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
14
|
Wei S, Xia J, Dell EJ, Jiang Y, Song R, Lee H, Rodenbough P, Briseno AL, Campos LM. Bandgap engineering through controlled oxidation of polythiophenes. Angew Chem Int Ed Engl 2014; 53:1832-6. [PMID: 24505004 DOI: 10.1002/anie.201309398] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Indexed: 11/09/2022]
Abstract
The use of Rozen's reagent (HOF⋅CH3 CN) to convert polythiophenes to polymers containing thiophene-1,1-dioxide (TDO) is described. The oxidation of polythiophenes can be controlled with this potent, yet orthogonal reagent under mild conditions. The oxidation of poly(3-alkylthiophenes) proceeds at room temperature in a matter of minutes, introducing up to 60 % TDO moieties in the polymer backbone. The resulting polymers have a markedly low-lying lowest unoccupied molecular orbital (LUMO), consequently exhibiting a small bandgap. This approach demonstrates that modulating the backbone electronic structure of well-defined polymers, rather than varying the monomers, is an efficient means of tuning the electronic properties of conjugated polymers.
Collapse
Affiliation(s)
- Sujun Wei
- Department of Chemistry, Columbia University, 3000 Broadway, MC3124, New York, NY 10027 (USA) http://camposgroup.chem.columbia.edu
| | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Liu Z, Liu J, Cai P, Chen J. Efficient Single-Layer White Light-Emitting Devices Based on Silole-Containing Polymers. ACTA ACUST UNITED AC 2013. [DOI: 10.1109/jdt.2013.2238215] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
16
|
Liu M, Chen Y, Zhang C, Li C, Li W, Bo Z. Synthesis of thiophene-containing conjugated polymers from 2,5-thiophenebis(boronic ester)s by Suzuki polycondensation. Polym Chem 2013. [DOI: 10.1039/c2py21070c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
17
|
Zhao W, Song J, Shao Y, Zhang W, Au A, Fan LJ. Preparation of Fluorescent Conjugated Polymer Films with Different Emission Colors: Investigation into the Influences of Chemical Structure and Morphology. MACROMOL CHEM PHYS 2012. [DOI: 10.1002/macp.201200235] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
18
|
Emission color tuning of copolymers containing polyfluorene, benzothiadiazole, porphyrin derivatives. Eur Polym J 2012. [DOI: 10.1016/j.eurpolymj.2012.06.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
19
|
Carbas BB, Önal AM. New fluorene–xanthene-based hybrid electrochromic and fluorescent polymers via donor–acceptor approach. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.01.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
20
|
Lai C, Guo W, Tang X, Pei M. Electrosynthesis of Chirality Conducting Poly[N-(9-fluorenylmethoxycarbonyl)-L-phenylalanine] with Good Blue Light-Emitting Properties. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201100087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
21
|
Wu CS, Liu CT, Chen Y. Multifunctional copolyfluorene containing pendant benzimidazolyl groups: applications in chemical sensors and electroluminescent devices. Polym Chem 2012. [DOI: 10.1039/c2py20506h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
22
|
Abstract
Two new conjugated copolymers, PFPh and PFTDP, comprised of alternating 9,9-dioctylfluorene and phthalimide (Ph) or thieno [3, 4-c] pyrrole-4,6-dione (TPD) have been synthesized via Suzuki coupling reaction. Polymeric light-emitting diodes (PLED) were fabricated with an ITO/PEDOT: PSS/PVK/Polymer/BCP/Alq/Ca:Ag configuration. The maximum brightness and maximum current efficiency of PLED are 2600cd/m2and 2.52 cd/A for PFPh, and 2300cd/m2and 1.13 cd/A for PFTDP, respectively, which are significantly improved compared with the reported alternating fluorene-unsubstituted phenylene/thiophene systems.
Collapse
|
23
|
Yu JM, Chen CY, Chen Y. Synthesis and fluorescent sensory properties of a 5-cyanostilbene derivative linked to monoaza-15-crown-5. J Taiwan Inst Chem Eng 2011. [DOI: 10.1016/j.jtice.2010.11.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
24
|
A comparative study of 9,9-bis(4-aminophenyl)fluorene polymers prepared by catalytic and non-catalytic oxidative polymerisation methods. Eur Polym J 2011. [DOI: 10.1016/j.eurpolymj.2011.02.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
25
|
Yu X, Lu X. Facile Cu(OTf)2-catalyzed preparation of 9-tosylaminofluorene derivatives from o-arylated N-tosylbenzaldimines. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.10.110] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
26
|
Song HJ, Lee JY, Song IS, Moon DK, Haw JR. Synthesis and electroluminescence properties of fluorene–anthracene based copolymers for blue and white emitting diodes. J IND ENG CHEM 2011. [DOI: 10.1016/j.jiec.2011.02.038] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
27
|
Chen L, Wang L, Jing X, Wang F. Color tuning of Novel 2,1,3-Naphthothiadiazole and 2,1,3-Benzoselenadiazole based D-A-D′ Type dopants to realize highly efficient saturated red emission in non-polar solvents. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm11204j] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
28
|
Chen L, Tong H, Xie Z, Wang L, Jing X, Wang F. Red electroluminescent polyfluorenes containing highly efficient 2,1,3-benzoselenadiazole- and 2,1,3-naphthothiadiazole-based red dopants in the side chain. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm12549d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
29
|
Su WF, Chen TT, Chen Y. Synthesis and optoelectronic properties of luminescent copolyfluorenes slightly doped with thiophene chromophore. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.02.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
30
|
Ho CL, Chui CH, Wong WY, Aly SM, Fortin D, Harvey PD, Yao B, Xie Z, Wang L. Efficient Electrophosphorescence from a Platinum Metallopolyyne Featuring a 2,7-Carbazole Chromophore. MACROMOL CHEM PHYS 2009. [DOI: 10.1002/macp.200900351] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
31
|
Fomina N, Bradforth SE, Hogen-Esch TE. Synthesis and Spectroscopy of Poly(9,9-dihexylfluorene-2,7-diyl-co-9,9-dihexylfluorene-3,6-diyl)s and Their Model Oligomers. Macromolecules 2009. [DOI: 10.1021/ma9008862] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nadezda Fomina
- Department of Chemistry and Loker Hydrocarbon Research Institute, University of Southern California, Los Angeles, California 90089
| | - Stephen E. Bradforth
- Department of Chemistry and Loker Hydrocarbon Research Institute, University of Southern California, Los Angeles, California 90089
| | - Thieo E. Hogen-Esch
- Department of Chemistry and Loker Hydrocarbon Research Institute, University of Southern California, Los Angeles, California 90089
| |
Collapse
|
32
|
Han J, An J, Im C, Cho NS, Shim HK, Majima T. Comparing electroluminescence efficiency and photoluminescence quantum yield of fluorene-based π-conjugated copolymers with narrow band-gap comonomers. J Photochem Photobiol A Chem 2009. [DOI: 10.1016/j.jphotochem.2009.02.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
33
|
Grimsdale AC, Leok Chan K, Martin RE, Jokisz PG, Holmes AB. Synthesis of Light-Emitting Conjugated Polymers for Applications in Electroluminescent Devices. Chem Rev 2009; 109:897-1091. [PMID: 19228015 DOI: 10.1021/cr000013v] [Citation(s) in RCA: 1718] [Impact Index Per Article: 114.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrew C. Grimsdale
- School of Chemistry, Bio21 Institute, University of Melbourne, 30 Flemington Road, Victoria 3010, Australia; School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Republic of Singapore 639798; Institute of Materials Research and Engineering (IMRE) and the Agency for Science, Technology and Research (A*STAR), 3 Research Link, Singapore 117602; and F. Hoffmann-La Roche Ltd., Pharmaceuticals Division, Discovery Chemistry, CH-4070 Basel, Switzerland
| | - Khai Leok Chan
- School of Chemistry, Bio21 Institute, University of Melbourne, 30 Flemington Road, Victoria 3010, Australia; School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Republic of Singapore 639798; Institute of Materials Research and Engineering (IMRE) and the Agency for Science, Technology and Research (A*STAR), 3 Research Link, Singapore 117602; and F. Hoffmann-La Roche Ltd., Pharmaceuticals Division, Discovery Chemistry, CH-4070 Basel, Switzerland
| | - Rainer E. Martin
- School of Chemistry, Bio21 Institute, University of Melbourne, 30 Flemington Road, Victoria 3010, Australia; School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Republic of Singapore 639798; Institute of Materials Research and Engineering (IMRE) and the Agency for Science, Technology and Research (A*STAR), 3 Research Link, Singapore 117602; and F. Hoffmann-La Roche Ltd., Pharmaceuticals Division, Discovery Chemistry, CH-4070 Basel, Switzerland
| | - Pawel G. Jokisz
- School of Chemistry, Bio21 Institute, University of Melbourne, 30 Flemington Road, Victoria 3010, Australia; School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Republic of Singapore 639798; Institute of Materials Research and Engineering (IMRE) and the Agency for Science, Technology and Research (A*STAR), 3 Research Link, Singapore 117602; and F. Hoffmann-La Roche Ltd., Pharmaceuticals Division, Discovery Chemistry, CH-4070 Basel, Switzerland
| | - Andrew B. Holmes
- School of Chemistry, Bio21 Institute, University of Melbourne, 30 Flemington Road, Victoria 3010, Australia; School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Republic of Singapore 639798; Institute of Materials Research and Engineering (IMRE) and the Agency for Science, Technology and Research (A*STAR), 3 Research Link, Singapore 117602; and F. Hoffmann-La Roche Ltd., Pharmaceuticals Division, Discovery Chemistry, CH-4070 Basel, Switzerland
| |
Collapse
|
34
|
Cid JJ, Ehli C, Atienza-Castellanos C, Gouloumis A, Maya EM, Vázquez P, Torres T, Guldi DM. Synthesis, photophysical and electrochemical characterization of phthalocyanine-based poly(p-phenylenevinylene) oligomers. Dalton Trans 2009:3955-63. [DOI: 10.1039/b818772j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
35
|
Hsieh BY, Chen Y. Copolyfluorenes containing phenothiazine or thiophene derivatives: Synthesis, characterization, and application in white-light-emitting diodes. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.23199] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
36
|
Park MJ, Lee J, Jung IH, Park JH, Hwang DH, Shim HK. Synthesis, Characterization, and Electroluminescence of Polyfluorene Copolymers with Phenothiazine Derivative; Their Applications to High-Efficiency Red and White PLEDs. Macromolecules 2008. [DOI: 10.1021/ma802043q] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Moo-Jin Park
- Polymer Science and Engineering Program, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea, Department of Chemistry and School of Molecular Science (BK21), Active Polymer Center for Pattern Integration, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea, and Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi 730-701, Korea
| | - Jonghee Lee
- Polymer Science and Engineering Program, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea, Department of Chemistry and School of Molecular Science (BK21), Active Polymer Center for Pattern Integration, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea, and Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi 730-701, Korea
| | - In Hwan Jung
- Polymer Science and Engineering Program, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea, Department of Chemistry and School of Molecular Science (BK21), Active Polymer Center for Pattern Integration, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea, and Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi 730-701, Korea
| | - Jong-Hwa Park
- Polymer Science and Engineering Program, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea, Department of Chemistry and School of Molecular Science (BK21), Active Polymer Center for Pattern Integration, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea, and Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi 730-701, Korea
| | - Do-Hoon Hwang
- Polymer Science and Engineering Program, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea, Department of Chemistry and School of Molecular Science (BK21), Active Polymer Center for Pattern Integration, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea, and Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi 730-701, Korea
| | - Hong-Ku Shim
- Polymer Science and Engineering Program, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea, Department of Chemistry and School of Molecular Science (BK21), Active Polymer Center for Pattern Integration, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea, and Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi 730-701, Korea
| |
Collapse
|
37
|
Jung YK, Kim H, Park JH, Lee J, Lee SK, Lee YS, Shim HK. Alternating fluorene copolymers containing isothianaphthene derivatives: A study of their aggregation properties and small band gap. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.22696] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
38
|
Synthesis and Optical Properties of Novel Conjugated Rigid-Rod Polymer Derived from Fluorene and Benzobisoxazole. Polym Bull (Berl) 2008. [DOI: 10.1007/s00289-008-0917-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
39
|
Li KC, Hsu YC, Lin JT, Yang CC, Wei KH, Lin HC. Novel narrow-band-gap conjugated copolymers containing phenothiazine-arylcyanovinyl units for organic photovoltaic cell applications. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.22715] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
40
|
Liu J, Chen L, Shao S, Xie Z, Cheng Y, Geng Y, Wang L, Jing X, Wang F. Highly efficient red electroluminescent polymers with dopant/host system and molecular dispersion feature: polyfluorene as the host and 2,1,3-benzothiadiazole derivatives as the red dopant. ACTA ACUST UNITED AC 2008. [DOI: 10.1039/b712562c] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
41
|
Hsieh BY, Chen Y. Polyfluorenes minimally doped with 1,4-bis(2-thienyl-2-cyanovinyl)benzene chromophore: Their synthesis, characterization, and application to white-light-emitting materials. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.22711] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
42
|
Biswas AK, Ashish, Tripathi AK, Mohapatra YN, Ajayaghosh A. Synthesis, Photophysical, and Electroluminescent Properties of Arylenevinylenes-co-pyrrolenevinylenes Derived from Divinylaryl Bridged Bispyrroles. Macromolecules 2007. [DOI: 10.1021/ma070116g] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anand K. Biswas
- Materials Science Programme, Indian Institute of Technology, Kanpur, India-208016, Department of Physics, Indian Institute of Technology, Kanpur, India-208016, Photosciences and Photonics Group, Regional Research Laboratory, CSIR, Trivandrum, 695 019, India, and Samtel Centre for Display Technologies, Indian Institute of Technology, Kanpur, India-208016
| | - Ashish
- Materials Science Programme, Indian Institute of Technology, Kanpur, India-208016, Department of Physics, Indian Institute of Technology, Kanpur, India-208016, Photosciences and Photonics Group, Regional Research Laboratory, CSIR, Trivandrum, 695 019, India, and Samtel Centre for Display Technologies, Indian Institute of Technology, Kanpur, India-208016
| | - Awnish K. Tripathi
- Materials Science Programme, Indian Institute of Technology, Kanpur, India-208016, Department of Physics, Indian Institute of Technology, Kanpur, India-208016, Photosciences and Photonics Group, Regional Research Laboratory, CSIR, Trivandrum, 695 019, India, and Samtel Centre for Display Technologies, Indian Institute of Technology, Kanpur, India-208016
| | - Yashowanta N. Mohapatra
- Materials Science Programme, Indian Institute of Technology, Kanpur, India-208016, Department of Physics, Indian Institute of Technology, Kanpur, India-208016, Photosciences and Photonics Group, Regional Research Laboratory, CSIR, Trivandrum, 695 019, India, and Samtel Centre for Display Technologies, Indian Institute of Technology, Kanpur, India-208016
| | - Ayyappanpillai Ajayaghosh
- Materials Science Programme, Indian Institute of Technology, Kanpur, India-208016, Department of Physics, Indian Institute of Technology, Kanpur, India-208016, Photosciences and Photonics Group, Regional Research Laboratory, CSIR, Trivandrum, 695 019, India, and Samtel Centre for Display Technologies, Indian Institute of Technology, Kanpur, India-208016
| |
Collapse
|
43
|
Kyu Lee S, Jung BJ, Ahn T, Kwan Jung Y, Lee JI, Kang IN, Lee J, Park JH, Ku Shim H. White electroluminescence from a single polyfluorene containing bis-DCM units. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pola.22090] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
44
|
Chan LH, Lee YD, Chen CT. Achieving saturated red photoluminescence and electroluminescence with readily synthesized maleimide-arylamine copolymers. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.07.096] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
45
|
Jung YK, Lee J, Lee SK, Cho HJ, Shim HK. Fluorene copolymers containing bithiophene/2,5- or 2,6-pyridine units: A study of their optical, electrochemical, and electroluminescence properties. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/pola.21560] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
46
|
Wu WC, Lee WY, Chen WC. New Fluorene-Acceptor Random Copolymers: Towards Pure White Light Emission from a Single Polymer. MACROMOL CHEM PHYS 2006. [DOI: 10.1002/macp.200600128] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
47
|
|
48
|
Chan LH, Lee YD, Chen CT. Synthesis and Characterization of 3,4-Diphenylmaleimide Copolymers That Exhibit Orange to Red Photoluminescence and Electroluminescence. Macromolecules 2006. [DOI: 10.1021/ma052083f] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Li-Hsin Chan
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan 30013, and Institute of Chemistry, Academia Sinica, Taipei, Taiwan 11529
| | - Yu-Der Lee
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan 30013, and Institute of Chemistry, Academia Sinica, Taipei, Taiwan 11529
| | - Chin-Ti Chen
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan 30013, and Institute of Chemistry, Academia Sinica, Taipei, Taiwan 11529
| |
Collapse
|
49
|
Theoretical investigations on the modulation of the polymer electronic and optical properties by introduction of phenoxazine. POLYMER 2006. [DOI: 10.1016/j.polymer.2006.02.094] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
50
|
Fonseca SM, Pina J, Arnaut LG, Seixas de Melo J, Burrows HD, Chattopadhyay N, Alcacer L, Charas A, Morgado J, Monkman AP, Asawapirom U, Scherf U, Edge R, Navaratnam S. Triplet-State and Singlet Oxygen Formation in Fluorene-Based Alternating Copolymers. J Phys Chem B 2006; 110:8278-83. [PMID: 16623508 DOI: 10.1021/jp060251f] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Data are reported on the triplet states of a series of fluorene-based A-alt-B type alternating copolymers based on pulse radiolysis-energy transfer and flash photolysis experiments. From the pulse radiolysis experiments, spectra are given for eight copolymers involving phenylene, thiophene, benzothiadiazole, and oligothienylenevinylene groups. Quantum yields for triplet-state formation (PhiT) have been obtained by flash photolysis following laser excitation and in one case by photoacoustic calorimetry. In addition, yields of sensitized formation of singlet oxygen have been determined by time-resolved phosphorescence and are, in general, in excellent agreement with the PhiT values. In all cases, the presence of thiophene units is seen to increase intersystem-crossing quantum yields, probably because of the presence of the heavy sulfur atom. However, with the poly[2,7-(9,9-bis(2'-ethylhexyl)fluorene)-alt-1,4-phenylene] (PFP), thiophene S,S-dioxide (PFTSO2) and benzothiadiazole (F8BT) copolymers, low yields of triplet formation are observed. With three of the copolymers, the energies of the triplet states have been determined. With PFP, the triplet energy is virtually identical to that of poly[2,7-(9,9-bis(2'-ethylhexyl)fluorene)]. In contrast, with fluorene-thiophene copolymers PFaT and PF3T, the triplet energies are closer to those of thiophene oligomers, indicating that there is significant conjugation between fluorene and thiophene units but also that there is a more localized triplet state than with the homopolymers.
Collapse
Affiliation(s)
- S M Fonseca
- Departamento de Química, Universidade de Coimbra, 3004-535 Coimbra, Portugal
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|