1
|
Xu Y, Sun L, Ghiggino KP, Smith TA. Resolving conjugated polymer film morphology with polarised transmission and time-resolved emission microscopy. Methods Appl Fluoresc 2024; 12:035004. [PMID: 38537297 DOI: 10.1088/2050-6120/ad388f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 03/27/2024] [Indexed: 04/17/2024]
Abstract
The alignment of chromophores plays a crucial role in determining the optoelectronic properties of materials. Such alignment can make interpretation of fluorescence anisotropy microscopy (FAM) images somewhat ambiguous. The time-resolved emission behaviour can also influence the fluorescence anisotropy. This is particularly the case when probing excitation energy migration between chromophores in a condensed phase. Ideally information concerning the chromophoric alignment, emission decay kinetics and fluorescence anisotropy can be recorded and correlated. We report on the use of polarised transmission imaging (PTI) coupled with both steady-state and time-resolved FAM to enable accurate identification of chromophoric alignment and morphology in thin films of a conjugated polydiarylfluorene. We show that the combination of these three imaging modes presents a comprehensive methodology for investigating the alignment and morphology of chromophores in thin films, particularly for accurately mapping the distribution of amorphous and crystalline phases within the thin films, offering valuable insights for the design and optimization of materials with enhanced optoelectronic performance.
Collapse
Affiliation(s)
- Yang Xu
- Ultrafast and Microspectroscopy Laboratories, School of Chemistry, University of Melbourne, Parkville, Victoria 3010, Australia
- ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Lili Sun
- Centre for Supramolecular Optoelectronics (CSO), School of Flexible Electronics (Future Technologies) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, People's Republic of China
| | - Kenneth P Ghiggino
- Ultrafast and Microspectroscopy Laboratories, School of Chemistry, University of Melbourne, Parkville, Victoria 3010, Australia
- ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Trevor A Smith
- Ultrafast and Microspectroscopy Laboratories, School of Chemistry, University of Melbourne, Parkville, Victoria 3010, Australia
- ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, Victoria 3010, Australia
| |
Collapse
|
2
|
Xu M, Wei C, Zhang Y, Chen J, Li H, Zhang J, Sun L, Liu B, Lin J, Yu M, Xie L, Huang W. Coplanar Conformational Structure of π-Conjugated Polymers for Optoelectronic Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2301671. [PMID: 37364981 DOI: 10.1002/adma.202301671] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 06/05/2023] [Indexed: 06/28/2023]
Abstract
Hierarchical structure of conjugated polymers is critical to dominating their optoelectronic properties and applications. Compared to nonplanar conformational segments, coplanar conformational segments of conjugated polymers (CPs) demonstrate favorable properties for applications as a semiconductor. Herein, recent developments in the coplanar conformational structure of CPs for optoelectronic devices are summarized. First, this review comprehensively summarizes the unique properties of planar conformational structures. Second, the characteristics of the coplanar conformation in terms of optoelectrical properties and other polymer physics characteristics are emphasized. Five primary characterization methods for investigating the complanate backbone structures are illustrated, providing a systematical toolbox for studying this specific conformation. Third, internal and external conditions for inducing the coplanar conformational structure are presented, offering guidelines for designing this conformation. Fourth, the optoelectronic applications of this segment, such as light-emitting diodes, solar cells, and field-effect transistors, are briefly summarized. Finally, a conclusion and outlook for the coplanar conformational segment regarding molecular design and applications are provided.
Collapse
Affiliation(s)
- Man Xu
- State Key Laboratory of Organic Electronics and Information Displays & School of Chemistry and Life Sciences & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Chuanxin Wei
- State Key Laboratory of Organic Electronics and Information Displays & School of Chemistry and Life Sciences & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Yunlong Zhang
- State Key Laboratory of Organic Electronics and Information Displays & School of Chemistry and Life Sciences & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Jiefeng Chen
- State Key Laboratory of Organic Electronics and Information Displays & School of Chemistry and Life Sciences & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Hao Li
- State Key Laboratory of Organic Electronics and Information Displays & School of Chemistry and Life Sciences & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Jingrui Zhang
- State Key Laboratory of Organic Electronics and Information Displays & School of Chemistry and Life Sciences & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Lili Sun
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Bin Liu
- State Key Laboratory of Organic Electronics and Information Displays & School of Chemistry and Life Sciences & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Jinyi Lin
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Mengna Yu
- State Key Laboratory of Organic Electronics and Information Displays & School of Chemistry and Life Sciences & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Linghai Xie
- State Key Laboratory of Organic Electronics and Information Displays & School of Chemistry and Life Sciences & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Wei Huang
- State Key Laboratory of Organic Electronics and Information Displays & School of Chemistry and Life Sciences & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China
| |
Collapse
|
3
|
Ultrafast photoexcitation dynamics behavior of hydrogen-bonded polyfluorenol. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
|
4
|
Zheng HQ, Zhang L, Lu M, Xiao X, Yang Y, Cui Y, Qian G. Precise Design and Deliberate Tuning of Turn-On Fluorescence in Tetraphenylpyrazine-Based Metal−Organic Frameworks. Research (Wash D C) 2022; 2022:9869510. [PMID: 36340506 PMCID: PMC9609278 DOI: 10.34133/2022/9869510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 10/03/2022] [Indexed: 11/12/2022] Open
Abstract
The manipulation on turn-on fluorescence in solid state materials attracts increasing interests owing to their widespread applications. Herein we report how the nonradiative pathways of tetraphenylpyrazine (TPP) units in metal−organic frameworks (MOFs) systems could be hindered through a topological design approach. Two MOFs single crystals of different topology were constructed via the solvothermal reaction of a TPP-based 4,4′,4″,4‴-(pyrazine-2,3,5,6-tetrayl) tetrabenzoic acid (H4TCPP) ligand and metal cations, and their mechanisms of formation have been explored. Compared with the innate low-frequency vibrational modes of flu net Tb-TCPP-1, such as phenyl ring torsions and pyrazine twists, Tb-TCPP-2 adopts a shp net, so the dihedral angle of pyrazine ring and phenyl arms is larger, and the center pyrazine ring in TPP unit is coplanar, which hinders the radiationless decay of TPP moieties in Tb-TCPP-2. Thereby Tb-TCPP-2 exhibits a larger blue-shifted fluorescence and a higher fluorescence quantum yield than Tb-TCPP-1, which is consistent with the reduced nonradiative pathways. Furthermore, Density functional theory (DFT) studies also confirmed aforementioned tunable turn-on fluorescence mechanism. Our work constructed TPP-type MOFs based on a deliberately topological design approach, and the precise design of turn-on fluorescence holds promise as a strategy for controlling nonradiative pathways.
Collapse
Affiliation(s)
- He-Qi Zheng
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lin Zhang
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Mengting Lu
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiaoyan Xiao
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yu Yang
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yuanjing Cui
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Guodong Qian
- State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, School of Materials Science & Engineering, Zhejiang University, Hangzhou 310027, China
| |
Collapse
|
5
|
Sun L, Wang S, Zheng Y, Chen W, Li M, Yu N, Wang Y, Yang J, Xu Y, Sun N, Liu B, An X, Bai L, Liu H, Lin J, Huang W. Poly(diarylfluorene) Deep-Blue Polymer Light-Emitting Diodes Based on Submicrometer-Scale Morphological Films Induced by Trace β-Conformation. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lili Sun
- Centre for Supramolecular Optoelectronics (CSO), School of Flexible Electronics (Future Technologies) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Shengjie Wang
- Centre for Supramolecular Optoelectronics (CSO), School of Flexible Electronics (Future Technologies) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Yingying Zheng
- Centre for Supramolecular Optoelectronics (CSO), School of Flexible Electronics (Future Technologies) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Wenyu Chen
- Centre for Supramolecular Optoelectronics (CSO), School of Flexible Electronics (Future Technologies) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Mengyuan Li
- Centre for Supramolecular Optoelectronics (CSO), School of Flexible Electronics (Future Technologies) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Ningning Yu
- Centre for Supramolecular Optoelectronics (CSO), School of Flexible Electronics (Future Technologies) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Yunhao Wang
- Centre for Supramolecular Optoelectronics (CSO), School of Flexible Electronics (Future Technologies) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Jinghao Yang
- Centre for Supramolecular Optoelectronics (CSO), School of Flexible Electronics (Future Technologies) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Yang Xu
- School of Chemistry and ARC Centre of Excellence in Exciton Science, The University of Melbourne, Parkville 3010, Victoria, Australia
| | - Ning Sun
- Centre for Supramolecular Optoelectronics (CSO), School of Flexible Electronics (Future Technologies) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Bin Liu
- Centre for Supramolecular Optoelectronics (CSO), School of Flexible Electronics (Future Technologies) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Xiang An
- Centre for Supramolecular Optoelectronics (CSO), School of Flexible Electronics (Future Technologies) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Lubing Bai
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an 710072, China
| | - Heyuan Liu
- School of Materials Science and Engineering, Institute of New Energy, College of Science, China University of Petroleum (East China), Qingdao 266580, Shandong, China
| | - Jinyi Lin
- Centre for Supramolecular Optoelectronics (CSO), School of Flexible Electronics (Future Technologies) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Wei Huang
- Centre for Supramolecular Optoelectronics (CSO), School of Flexible Electronics (Future Technologies) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an 710072, China
| |
Collapse
|
6
|
Liu B, He L, Li M, Yu N, Chen W, Wang S, Sun L, Ni M, Bai L, Pan W, Sun P, Lin J, Huang W. Improving the Intrinsic Stretchability of Fully Conjugated Polymer for Deep-Blue Polymer Light-Emitting Diodes with a Narrow Band Emission: Benefits of Self-Toughness Effect. J Phys Chem Lett 2022; 13:7286-7295. [PMID: 35916779 DOI: 10.1021/acs.jpclett.2c02071] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
It is challenging to construct the intrinsically stretchable active layer of rigid conjugated polymers (CPs) toward flexible deep-blue light-emitting diodes (FLEDs). Inspired by the self-toughness effect, sacrificial hydrogen bonding (H-bonding) and a cross-linked network synergistically enabled polydiarylfluorene (PFs-NH) films to present efficient deep-blue emission and excellent intrinsic stretchability. In particular, a cross-linked network structure presenting viscoelasticity behaviors, which was successfully inherited into postprocessed films with interchain interpenetration and a crystallinity domain and behaved as energy absorption and dissipation centers, was induced by the interchain H-bonding interaction in toluene (Tol) precursor solutions where the storage moduli (G') gradually exceeded the loss moduli (G″). Subsequently, intrinsic stretchable films with a tensile rate of 30% were prepared from Tol solutions, different from the brittle films from polar solvents. Eventually, narrow band, deep-blue PLEDs showed a maximum EQE of 1.28% and a full width half-maximum (fwhm) of 28 nm. Therefore, the self-toughness effect induced by hierarchical structures will be feasible to obtain high-performance FLEDs.
Collapse
Affiliation(s)
- Bin Liu
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing 211816, China
| | - Liangliang He
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing 211816, China
| | - Mengyuan Li
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing 211816, China
| | - Ningning Yu
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing 211816, China
| | - Wenyu Chen
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing 211816, China
| | - Shengjie Wang
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing 211816, China
| | - Lili Sun
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing 211816, China
| | - Mingjian Ni
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing 211816, China
| | - Lubing Bai
- Frontiers Science Center for Flexible Electronics & Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), Xi'an 710072, China
| | - Weichun Pan
- School of Food Science and Biotechnology, Zhejiang Gongshang University, 18 Xuezheng Road, Hangzhou 310018, China
| | - Pengfei Sun
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Jinyi Lin
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing 211816, China
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLoFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing 211816, China
- Frontiers Science Center for Flexible Electronics & Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), Xi'an 710072, China
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| |
Collapse
|
7
|
Germino JC, Duarte LGTA, Mendes RA, Faleiros MM, de Morais A, de Freitas JN, Pereira L, Atvars TDZ. All-Solution Processed Single-Layer WOLEDs Using [Pt(salicylidenes)] as Guests in a PFO Matrix. NANOMATERIALS 2022; 12:nano12142497. [PMID: 35889721 PMCID: PMC9316125 DOI: 10.3390/nano12142497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/06/2022] [Accepted: 07/12/2022] [Indexed: 02/01/2023]
Abstract
Herein, we report the synthesis and characterization of two Pt(II) coordination compounds, the new platinum(II)[N,N′-bis(salicylidene)-3,4-diaminobenzophenone)] ([Pt(sal-3,4-ben)]) and the already well-known platinum(II)[N,N′-bis(salicylidene)-o-phenylenediamine] ([Pt(salophen)]), along with their application as guests in a poly [9,9-dioctylfluorenyl-2,7-diyl] (PFO) conjugated polymer in all-solution processed single-layer white organic light-emitting diodes. Completely different performances were achieved: 2.2% and 15.3% of external quantum efficiencies; 2.8 cd A−1 and 12.1 cd A−1 of current efficiencies; and 3103 cd m−2 and 6224 cd m−2 of luminance for the [Pt(salophen)] and [Pt(sal-3,4-ben)] complexes, respectively. The Commission Internationale de l’Eclairage (CIE 1931) chromaticity color coordinates are (0.33, 0.33) for both 0.1% mol/mol Pt(II):PFO composites at between approximately 3.2 and 8 V. The optoelectronic properties of doped and neat PFO films have been investigated, using steady-state and time-resolved photoluminescence. Theoretical calculations at the level of relativistic density functional theory explained these results, based on the presence of the Pt(II) central ion’s phosphorescence emission, considering spin-orbit coupling relationships. The overall results are explained, taking into account the active layer morphological properties, along with the device’s electric balance and the emitter’s efficiencies, according to deep-trap space-charge models. Considering the very simple structure of the device and the ease of synthesis of such compounds, the developed framework can offer a good trade-off for solution-deposited white organic light-emitting diodes (WOLEDs), with further applications in the field of lighting and signage.
Collapse
Affiliation(s)
- José Carlos Germino
- Chemistry Institute, University of Campinas—UNICAMP, Campinas 13083-862, Brazil; (L.G.T.A.D.); (M.M.F.); (T.D.Z.A.)
- Department of Physics and i3N—Institute for Nanostructures, Nanomodelling and Nanofabrication, University of Aveiro, 3810-193 Aveiro, Portugal
- Correspondence: (J.C.G.); (L.P.)
| | | | - Rodrigo Araújo Mendes
- São Carlos Institute of Chemistry, University of São Paulo—USP, São Carlos 13566-590, Brazil;
| | - Marcelo Meira Faleiros
- Chemistry Institute, University of Campinas—UNICAMP, Campinas 13083-862, Brazil; (L.G.T.A.D.); (M.M.F.); (T.D.Z.A.)
| | - Andreia de Morais
- Center for Information Technology Renato Archer—CTI, Campinas 13069-901, Brazil; (A.d.M.); (J.N.d.F.)
| | - Jilian Nei de Freitas
- Center for Information Technology Renato Archer—CTI, Campinas 13069-901, Brazil; (A.d.M.); (J.N.d.F.)
| | - Luiz Pereira
- Department of Physics and i3N—Institute for Nanostructures, Nanomodelling and Nanofabrication, University of Aveiro, 3810-193 Aveiro, Portugal
- Correspondence: (J.C.G.); (L.P.)
| | - Teresa Dib Zambon Atvars
- Chemistry Institute, University of Campinas—UNICAMP, Campinas 13083-862, Brazil; (L.G.T.A.D.); (M.M.F.); (T.D.Z.A.)
| |
Collapse
|
8
|
Ferreira AA, Turchetti DA, Santana AJ, Akcelrud LC, Paula KD, Mascarenhas YP. Synthesis, structural characterization, and optical properties of a novel hybrid nanocomposite of poly(9,9′-dihexyfluorene) and europium oxide nanoparticles. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2022. [DOI: 10.1080/1023666x.2022.2088069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- André A. Ferreira
- São Carlos School of Engineering, University of São Paulo, São Carlos, Brazil
| | - Denis A. Turchetti
- Paulo Scarpa Laboratory of Polymer (LaPPS), Department of Chemistry, Federal University of Paraná, Curitiba, Brazil
| | - Alisson J. Santana
- Paulo Scarpa Laboratory of Polymer (LaPPS), Department of Chemistry, Federal University of Paraná, Curitiba, Brazil
| | - Leni C. Akcelrud
- Paulo Scarpa Laboratory of Polymer (LaPPS), Department of Chemistry, Federal University of Paraná, Curitiba, Brazil
| | - Karina de Paula
- São Carlos Institute of Physics, University of São Paulo, São Carlos, Brazil
| | | |
Collapse
|
9
|
Abumelha HM, Bayazeed A, Alaysuy O, Alsoliemy A, Alharbi A, Habeebullah TM, El-Metwaly NM. Synthesis, photophysical properties and DFT studies of 2-(3-cyano-4-((2-(4,6-dimethyl-5-nitro-1H-pyrazolo[3,4-b]pyridin-3-yl)hydrazono)methyl)-5,5-dimethylfuran-2(5H)-ylidene)malononitrile dye. JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2022.101502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
10
|
Chew KW, Abdul Rahim NA, Teh PL, Abdul Hisam NS, Alias SS. Thermal Degradation of Photoluminescence Poly(9,9-dioctylfluorene) Solvent-Tuned Aggregate Films. Polymers (Basel) 2022; 14:polym14081615. [PMID: 35458365 PMCID: PMC9029415 DOI: 10.3390/polym14081615] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/11/2022] [Accepted: 04/13/2022] [Indexed: 01/27/2023] Open
Abstract
The progression of the green emission spectrum during the decomposition of polyfluorenes (PFs) has impeded the development and commercialization of the materials. Herein, we constructed a solvent-tuned aggregated PFO film with the aim of retarding the material’s thermal degradation behavior which causes a significant decline in optical properties as a result of phase transformation. The tuning of the aggregate amount and distribution was executed by applying a poor alcohol-based solvent in chloroform. It emerges that at a lower boiling point methanol evaporates quickly, limiting the aggregate propagation in the film which gives rise to a more transparent film. Furthermore, because of the modulated β-phase conformation, the absorption spectra of PFO films were red-shifted and broadened. The increase in methanol percentage also led to a rise in β-phase percentage. As for the thermal degradation reactions, both pristine and aggregated PFO films exhibited apparent changes in the UV-Vis spectra and PL spectra. In addition, a 97:3 (chloroform:methanol) aggregated PFO film showed a more defined emission spectrum, which demonstrates that the existence of β-phase is able to suppress the unwanted green emission.
Collapse
Affiliation(s)
- Kang Wei Chew
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia; (K.W.C.); (P.L.T.); (N.S.A.H.)
| | - Nor Azura Abdul Rahim
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia; (K.W.C.); (P.L.T.); (N.S.A.H.)
- Correspondence:
| | - Pei Leng Teh
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia; (K.W.C.); (P.L.T.); (N.S.A.H.)
| | - Nurfatin Syafiqah Abdul Hisam
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia; (K.W.C.); (P.L.T.); (N.S.A.H.)
| | - Siti Salwa Alias
- Advanced Optical Materials Research Group (AOMRG), Department of Physics, Faculty of Science, Universiti Teknologi Malaysia (UTM), Skudai 81310, Johor, Malaysia;
| |
Collapse
|
11
|
Universal 4-qualifiable fluorene-based building blocks for potential optoelectronic applications. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.03.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
12
|
Atomic-resolved hierarchical structure of elastic π-conjugated molecular crystal for flexible organic photonics. Chem 2022. [DOI: 10.1016/j.chempr.2022.02.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
13
|
Shi J, Camacho R, Scheblykin IG. Energy transfer in multi-funnel systems quantitatively assessed by two-dimensional polarization imaging and single funnel approximation: From single molecules to ensembles. J Chem Phys 2022; 156:074108. [DOI: 10.1063/5.0075005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Juanzi Shi
- Division of Chemical Physics and Nano Lund, Lund University, P.O. Box 118, Lund 22100, Sweden
| | - Rafael Camacho
- Center for Cellular Imaging, Core Facilities, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ivan G. Scheblykin
- Division of Chemical Physics and Nano Lund, Lund University, P.O. Box 118, Lund 22100, Sweden
| |
Collapse
|
14
|
Li T, He Q, Guan Y, Liao J, He Y, Luo X, Cao W, Cui Z, Jia S, Liu A, Yao S, Guan X, Zhang H, Lu D. Influence of molecular weight and the change of solvent solubility on β conformation and chains condensed state structure for poly (9,9-dioctylfluorene) (PFO) in solution. POLYMER 2022. [DOI: 10.1016/j.polymer.2021.124471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
15
|
Enhancement of morphological and emission stability of deep-blue small molecular emitter via a universal side-chain coupling strategy for optoelectronic device. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.07.069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
16
|
Ferreira A, Turchetti D, Santana A, Akcelrud L, Mascarenhas Y. Structural and morphological characterization of the crystallites from semicrystalline regions of poly (9,9′-dihexylfluorene). INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2021. [DOI: 10.1080/1023666x.2021.1968121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- André Ferreira
- Department of Materials Engineering, São Carlos School of Engineering, University of São Paulo, São Carlos, Brazil
| | - Denis Turchetti
- Department of Chemistry, Paulo Scarpa Laboratory of Polymer (LaPPS), Federal University of Paraná, Curitiba, Brazil
| | - Alisson Santana
- Department of Chemistry, Paulo Scarpa Laboratory of Polymer (LaPPS), Federal University of Paraná, Curitiba, Brazil
| | - Leni Akcelrud
- Department of Chemistry, Paulo Scarpa Laboratory of Polymer (LaPPS), Federal University of Paraná, Curitiba, Brazil
| | - Yvonne Mascarenhas
- São Carlos Institute of Physics, University of São Paulo, São Carlos, Brazil
| |
Collapse
|
17
|
Lv P, An X, Guan Z, Wang L, Zheng Z, Li X, Yin Z, Lin J, Tang A. Construction of Robust Cadmium-Free Cu-In-Zn-S Nanocrystals and Polyfluorene Derivatives Hybrid Emissive Layer for Stable Electroluminescent White Light-Emitting Devices. J Phys Chem Lett 2021; 12:7113-7119. [PMID: 34296612 DOI: 10.1021/acs.jpclett.1c02060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Combination of the merit of inorganic nanocrystals (NCs) and solution-processed conjugated polymer is a convenient strategy to obtain stable and efficient electroluminescent white-light-emitting diodes (el-WLEDs). In this work, an el-WLED was fabricated on the basis of Cd-free Cu-In-Zn-S (CIZS)/ZnS NCs blending with polyfluorene derivative poly[4-(octyloxy)-9,9-diphenylfluoren-2,7-diyl]-co-[5-(octyloxy)-9,9-diphenylfluoren-2,7-diyl] (PODPF), which exhibited a stable white light emission with a color rendering index value of 85. Meanwhile, it had a stable spectrum under high voltage due to the extremely weak energy transfer between PODPF and CIZS/ZnS NCs. To further improve the device performance, PC9O4 was used to replace PODPF, which presented better solubility and smoother film-forming properties. Thus, the maximum external quantum efficiency (EQE) of the optimized el-WLED was increased by 221% while maintaining a stable spectrum under high voltage. This work may provide a great foundation on color mixing cadmium-free el-WLEDs.
Collapse
Affiliation(s)
- Peiwen Lv
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing JiaoTong University, Beijing 100044, China
| | - Xiang An
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing 211816, China
| | - Zhongyuan Guan
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing JiaoTong University, Beijing 100044, China
| | - Lijin Wang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing JiaoTong University, Beijing 100044, China
| | - Zhiyong Zheng
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Xu Li
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Zhe Yin
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing JiaoTong University, Beijing 100044, China
| | - Jinyi Lin
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing 211816, China
| | - Aiwei Tang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing JiaoTong University, Beijing 100044, China
| |
Collapse
|
18
|
Liu M, Shi X, Li L, Zhang J, Huang Z, Zhang W, Zhou N, Zhang Z, Zhu X. Synthesis of Discrete Conjugated Fluorene‐Azo Oligomers for the Investigation of Azobenzene Position‐Dependent Physical Properties and Photoresponsive Behavior. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Min Liu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou 215123 China
| | - Xianheng Shi
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou 215123 China
| | - Lishan Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou 215123 China
| | - Jiandong Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou 215123 China
| | - Zhihao Huang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou 215123 China
| | - Wei Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou 215123 China
| | - Nianchen Zhou
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou 215123 China
| | - Zhengbiao Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou 215123 China
| | - Xiulin Zhu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou 215123 China
| |
Collapse
|
19
|
Sun N, Han Y, Sun L, Xu M, Wang K, Lin J, Sun C, An J, Wang S, Wei Q, Zheng Y, Zhuo Z, Bai L, Xie L, Yin C, Zhang X, Huang W. Diarylfluorene Flexible Pendant Functionalization of Polystyrene for Efficient and Stable Deep-Blue Polymer Light-Emitting Diodes. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02876] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ning Sun
- Centre for Supramolecular Optoelectronics (CSO), Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Yamin Han
- Centre for Supramolecular Optoelectronics (CSO), Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Lili Sun
- Centre for Supramolecular Optoelectronics (CSO), Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Man Xu
- Centre for Molecular Systems and Organic Devices (CMSOD), State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Kai Wang
- Centre for Supramolecular Optoelectronics (CSO), Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Jinyi Lin
- Centre for Supramolecular Optoelectronics (CSO), Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Chen Sun
- Centre for Supramolecular Optoelectronics (CSO), Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - JingXi An
- Centre for Molecular Systems and Organic Devices (CMSOD), State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Shengjie Wang
- Centre for Supramolecular Optoelectronics (CSO), Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Qi Wei
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an 710072, China
| | - Yingying Zheng
- Centre for Supramolecular Optoelectronics (CSO), Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Zhiqiang Zhuo
- Centre for Supramolecular Optoelectronics (CSO), Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Lubing Bai
- Centre for Supramolecular Optoelectronics (CSO), Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Linghai Xie
- Centre for Molecular Systems and Organic Devices (CMSOD), State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Chengrong Yin
- Centre for Supramolecular Optoelectronics (CSO), Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Xinwen Zhang
- Centre for Molecular Systems and Organic Devices (CMSOD), State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Wei Huang
- Centre for Supramolecular Optoelectronics (CSO), Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
- Centre for Molecular Systems and Organic Devices (CMSOD), State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an 710072, China
| |
Collapse
|
20
|
Zhang L, Shi M, Zhou W, Guan W, Lu C. Disordered Assembly of Donors and Acceptors on Layered Double Hydroxides for High-Efficiency Chemiluminescence Resonance Energy Transfer. Anal Chem 2021; 93:7724-7731. [PMID: 34000804 DOI: 10.1021/acs.analchem.1c01136] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
High-efficiency chemiluminescence (CL) resonance energy transfer (CRET) can be obtained by shortening the donor-acceptor distance and/or improving the luminescence efficiency of CRET acceptors. However, careful design and stringent experimental conditions are usually required for the ordered assembly of CRET acceptors on support materials to avoid aggregation-caused quenching problems. In this work, an aggregation-induced emission (AIE)-active fluorophore was disorderly adsorbed on the surface of layered double hydroxides (LDHs), which could exhibit high-efficiency luminescence. On the other hand, the positively charged LDHs can further adsorb peroxynitrite (ONOO-) on the surface of LDHs. Therefore, the LDH-supported AIE fluorophore could dramatically amplify weak CL signals from ONOO- donors as a result of ultra-high CRET efficiency by coupling the shorter donor-acceptor distance with efficient CRET acceptors. The proposed CL system has been successfully applied for the detection of NaNO2 in the concentration range from 1.0 to 100 μM with a detection limit as low as 0.5 μM. Satisfactory recoveries (98-106%) and good accuracy were achieved for sausage samples. Our success will open new avenues for the convenient design of high-efficiency CRET systems.
Collapse
Affiliation(s)
- Lijuan Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Meina Shi
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Wenjuan Zhou
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Weijiang Guan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Chao Lu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.,Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| |
Collapse
|
21
|
Sickinger A, Mecking S. Origin of the Anisotropy and Structure of Ellipsoidal Poly(fluorene) Nanoparticles. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00597] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Annika Sickinger
- Department of Chemistry, University of Konstanz, Universitätsstraße 10, Konstanz 78457, Germany
| | - Stefan Mecking
- Department of Chemistry, University of Konstanz, Universitätsstraße 10, Konstanz 78457, Germany
| |
Collapse
|
22
|
Electrospun Supramolecular Hybrid Microfibers from Conjugated Polymers: Color Transformation and Conductivity Evolution. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2542-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
23
|
Khokhar D, Jadoun S, Arif R, Jabin S, Budhiraja V. Copolymerization of o-phenylenediamine and 3-Amino-5-methylthio-1H-1,2,4-triazole for tuned optoelectronic properties and its antioxidant studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129738] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
24
|
Wollmann J, Kahle FJ, Bauer I, Köhler A, Strohriegl P. Versatile Approach to Well-Defined Oligofluorenes and Polyfluorenes with Low Dispersity. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01887] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
25
|
Turchetti DA, Zanlorenzi C, Duarte LGTA, Santos RFS, Atvars TDZ, Domingues RA, Akcelrud LC. Photophysical and Theoretical Interpretation of the Insensitive Emission to Temperature of a Metallopolymer Containing Europium Ions. J Phys Chem B 2020; 124:6105-6111. [DOI: 10.1021/acs.jpcb.0c03362] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- D. A. Turchetti
- Chemistry Department, Paulo Scarpa Polymer Laboratory (LaPPS), Federal University of Parana, P.O. Box 19032, Curitiba, Parana 81530-900, Brazil
| | - C. Zanlorenzi
- Chemistry Department, Paulo Scarpa Polymer Laboratory (LaPPS), Federal University of Parana, P.O. Box 19032, Curitiba, Parana 81530-900, Brazil
| | - L. G. T. A. Duarte
- Chemistry Institute, University of Campinas (Unicamp), P.O. Box 6154, Campinas, São Paulo 13084-971, Brazil
| | - R. F. S. Santos
- Institute of Science and Technology, Federal University of São Paulo, R. Talim, 330, São José dos Campos, São Paulo 12231-280, Brazil
| | - T. D. Z. Atvars
- Chemistry Institute, University of Campinas (Unicamp), P.O. Box 6154, Campinas, São Paulo 13084-971, Brazil
| | - R. A. Domingues
- Institute of Science and Technology, Federal University of São Paulo, R. Talim, 330, São José dos Campos, São Paulo 12231-280, Brazil
| | - L. C. Akcelrud
- Chemistry Department, Paulo Scarpa Polymer Laboratory (LaPPS), Federal University of Parana, P.O. Box 19032, Curitiba, Parana 81530-900, Brazil
| |
Collapse
|
26
|
Ma T, Song N, Qiu J, Zhang H, Lu D. Synergistic Effects of External Electric Field and Solvent Vapor Annealing with Different Polarities to Enhance β-Phase and Carrier Mobility of the Poly(9,9-dioctylfluorene) Films. Chem Res Chin Univ 2020. [DOI: 10.1007/s40242-020-0129-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
27
|
Li T, Zhang H, Liu B, Ma T, Lin J, Xie L, Lu D. Effect of Solvent on the Solution State of Conjugated Polymer P7DPF Including Single-Chain to Aggregated State Structure Formation, Dynamic Evolution, and Related Mechanisms. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00579] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Tao Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Avenue, Changchun, China
- Henan Key Laboratory of Materials on Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454003, China
| | - Hao Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Avenue, Changchun, China
| | - Bin Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Avenue, Changchun, China
| | - Tengning Ma
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Avenue, Changchun, China
| | - Jinyi Lin
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing 211816, China
| | - Linghai Xie
- Centre for Molecular Systems and Organic Devices (CMSOD), Key Laboratory for Organic Electronics and Information Displays &Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Dan Lu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Avenue, Changchun, China
| |
Collapse
|
28
|
Dias KDS, Savedra RML, de Magalhães CET, Siqueira MF. Solvent influence on molecular interactions in the bulk of fluorene copolymer films. RSC Adv 2020; 10:20772-20777. [PMID: 35517723 PMCID: PMC9054281 DOI: 10.1039/d0ra02058c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/03/2020] [Indexed: 12/13/2022] Open
Abstract
The effect of intermolecular interactions between the chains of the amorphous PFO–MEH-PPV films built from toluene and tetrahydrofuran (THF) were studied by atomistic molecular dynamics simulations, applying a successive solvent removal procedure. In the good solvent toluene, the incidence of topological entanglements is more significant. While in the poor solvent, coplanar interactions between neighbouring segments of the chains were also found, which is characteristics of cohesional entanglements. Structure factor curves of the films showed three peaks associated with the microstructure of the film, as previously reported by WAX diffractogram measurements. Moreover, the good solvent promotes more flexibility in dihedral angles, and the chains become nearer to each other. The effect of intermolecular interactions between the chains of the amorphous PFO–MEH-PPV films built from toluene and tetrahydrofuran (THF) were studied by atomistic molecular dynamics simulations, applying a successive solvent removal procedure.![]()
Collapse
Affiliation(s)
- Karina da Silva Dias
- Department of Physics, MolSMat - Molecular Simulation of Materials, Laboratory of Computational Simulation (LabSimCo), Federal University of Ouro Preto 35400-000 Ouro Preto MG Brazil
| | - Ranylson Marcello Leal Savedra
- Department of Physics, MolSMat - Molecular Simulation of Materials, Laboratory of Computational Simulation (LabSimCo), Federal University of Ouro Preto 35400-000 Ouro Preto MG Brazil .,Department of Physics, Laboratory of Polymers and Electronic Properties of Materials (LAPPEM), Federal University of Ouro Preto Ouro Preto MG Brazil
| | - Carlos Eduardo Tavares de Magalhães
- Department of Physics, MolSMat - Molecular Simulation of Materials, Laboratory of Computational Simulation (LabSimCo), Federal University of Ouro Preto 35400-000 Ouro Preto MG Brazil
| | - Melissa Fabíola Siqueira
- Department of Physics, MolSMat - Molecular Simulation of Materials, Laboratory of Computational Simulation (LabSimCo), Federal University of Ouro Preto 35400-000 Ouro Preto MG Brazil .,Department of Physics, Laboratory of Polymers and Electronic Properties of Materials (LAPPEM), Federal University of Ouro Preto Ouro Preto MG Brazil
| |
Collapse
|
29
|
Pietropaolo A, Nakano T. Learning how planarization can affect dichroic patterns in polyfluorenes. Chirality 2020; 32:661-666. [PMID: 32160652 DOI: 10.1002/chir.23219] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 03/02/2020] [Accepted: 03/03/2020] [Indexed: 01/03/2023]
Abstract
The circular dichroism spectra of a single chain of polyfluorene was predicted for a p-twisted helix conformation and local planarized polymer sections in the presence and in the absence of thermal vibrations. Under thermal vibrations at 300 K, the planarized section of polyfluorene affords a red-shifted positive dichroic band between 446 and 456 nm, preserving a degree of chirality. The S1 ← S0 excitation energy decreases from 3.29 eV, for the p-twisted helix to 2.77 or 2.71 eV, for planarized sections with one or two coplanar twists, respectively. Thermal vibrations and intramolecular rotations eventually affect the circular dichroism spectrum patterns, where planarized bent conformers induce a positive band towards 450 nm.
Collapse
Affiliation(s)
- Adriana Pietropaolo
- Dipartimento di Scienze della Salute, Università di Catanzaro, Catanzaro, Italy
| | - Tamaki Nakano
- Institute for Catalysis (ICAT), Hokkaido University, Sapporo, Japan
| |
Collapse
|
30
|
Cheng W, Teng X, Lu C. Structurally Ordered Catalyst-Amplified Chemiluminescence Signals. Anal Chem 2020; 92:5456-5463. [DOI: 10.1021/acs.analchem.0c00204] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Weiwei Cheng
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xu Teng
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Institute of Plant Protection, Heilongjiang Academy of Agriculture Science, Harbin 150086, China
| | - Chao Lu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| |
Collapse
|
31
|
Yang R, Hu Z, Li Y, Xia J, Ma J, Yang J. Spray coated perylenebisimide/polymer film with controllable molecular aggregation state and emission properties. RSC Adv 2020; 10:2437-2447. [PMID: 35496080 PMCID: PMC9048986 DOI: 10.1039/c9ra09950f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 01/02/2020] [Indexed: 11/29/2022] Open
Abstract
Dye doped organic thin films with controllable molecular aggregation and emission properties are of broad interest to the scientific community owing to their large number of potential applications in physics, chemistry, and materials science. Here, a spray coating method was used to prepare perylenebisimides (PBI) doped polymer films. In this study, the effects of the dye concentration, polymer matrix, solvent, and casting process on the optical properties of the resulting films were studied. The aggregation of the PBI into monomer, dimer, and oligomer forms, was rapidly and simply controlled based on the concentration dependence of PBI. The molecular aggregation mechanism in the film forming process for PBI doped polystyrene (PS) was further analyzed by computer simulations. The blends rapidly reached their lowest Gibbs free energy owing to the “frozen” polymer chains and confinement of PBI, molecules with different aggregation states. Therefore, the PBIs/PS films prepared under different conditions had different fluorescent lifetimes and absolute quantum yields. Narrow emission, amplified spontaneous emission (ASE) and random lasing (RL) were observed in PBI doped PS films when photo-pumped at 532 nm in transmittance and waveguide modes, respectively. A lower ASE and RL threshold were obtained for PS films doped with monomeric PBI than those in other aggregation states. Moreover, the solvent use in film deposition greatly influenced the emission properties of the PS films by altering their microstructures. These results indicate potential applications for spray coated dye/polymer films in organic solid-state lasers. Dye doped organic thin films with controllable molecular aggregation and emission properties are of broad interest to the scientific community owing to their large number of potential applications in physics, chemistry, and materials science.![]()
Collapse
Affiliation(s)
- Rui Yang
- State Key Laboratory of Environment-friendly Energy Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Zhijia Hu
- State Key Laboratory of Environment-friendly Energy Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Yaxin Li
- School of Instrument Science and Opto-Electronics Engineering
- Hefei University of Technology
- Hefei
- P. R. China
| | - Jiangying Xia
- School of Instrument Science and Opto-Electronics Engineering
- Hefei University of Technology
- Hefei
- P. R. China
| | - Jiajun Ma
- State Key Laboratory of Environment-friendly Energy Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Junxiao Yang
- State Key Laboratory of Environment-friendly Energy Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang 621010
- China
| |
Collapse
|
32
|
Liu B, Bai Z, Li T, Liu Y, Li X, Zhang H, Lu D. Discovery and structure characteristics of the intermediate-state conformation of poly(9,9-dioctylfluorene) (PFO) in the dynamic process of conformation transformation and its effects on carrier mobility. RSC Adv 2019; 10:492-500. [PMID: 35492527 PMCID: PMC9048266 DOI: 10.1039/c9ra07115f] [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: 09/05/2019] [Accepted: 12/02/2019] [Indexed: 11/21/2022] Open
Abstract
Good solution processability is a prerequisite for fabricating polymer optoelectronic devices. In this research, a new PFO chain conformation called “intermediate-state conformation” was found through UV-vis absorption spectroscopy, photoluminescence spectroscopy (PL) and Raman spectroscopy in the transition process of α conformation towards β conformation. The intermediate-state conformation not only remedies the defect of film-forming caused by large aggregation of β-conformation but also gains an equivalent carrier mobility similar to that of β conformation. Simultaneously, it was found that the film with the intermediate-state conformation had a smooth surface morphology compared to the film with β-conformation, which indicates that the intermediate-state conformation has good solution processability; thus, it is more suitable for the fabrication of photoelectric films with high carrier mobility. The results of high-resolution transmission electron microscopy (HR-TEM) measurements showed that there were obvious lattice fringes in the films with the intermediate-state conformation and β conformation; this reveals that the intermediate-state conformation has a more planar conformation with extended conjugation length than the β conformation, which is very beneficial to enhance carrier mobility. The research significantly reveals the dynamic evolution of polymer structures based on conjugated polymer physics. The conclusions enrich the understanding of the structure evolution and dynamic process of conjugated polymers and present broad application prospects for photoelectric and other functional devices due to the good film-forming properties of the intermediate-state conformation. Good solution processability is a prerequisite for fabricating polymer optoelectronic devices.![]()
Collapse
Affiliation(s)
- Bin Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University 2699 Qianjin Avenue Changchun 130012 China +86 130 8681 2739
| | - Zeming Bai
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University 2699 Qianjin Avenue Changchun 130012 China +86 130 8681 2739
| | - Tao Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University 2699 Qianjin Avenue Changchun 130012 China +86 130 8681 2739
| | - Yang Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University 2699 Qianjin Avenue Changchun 130012 China +86 130 8681 2739
| | - Xiaona Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University 2699 Qianjin Avenue Changchun 130012 China +86 130 8681 2739
| | - Hao Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University 2699 Qianjin Avenue Changchun 130012 China +86 130 8681 2739
| | - Dan Lu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University 2699 Qianjin Avenue Changchun 130012 China +86 130 8681 2739
| |
Collapse
|
33
|
Alkyl-chain branched effect on the aggregation and photophysical behavior of polydiarylfluorenes toward stable deep-blue electroluminescence and efficient amplified spontaneous emission. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.08.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
34
|
Yu MN, Lin JY, Li YX, Soleimaninejad H, Ou CJ, Bai LB, Liu B, Liu W, Wei Q, Bo YF, Smith TA, Dunstan DE, Ghiggino KP, Xie LH, Xu CX, Bradley DD, Huang W. Emission Enhanced and Stabilized by Stereoisomeric Strategy in Hierarchical Uniform Supramolecular Framework. Chem 2019. [DOI: 10.1016/j.chempr.2019.06.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
35
|
Ou C, Cheetham NJ, Weng J, Yu M, Lin J, Wang X, Sun C, Cabanillas-Gonzalez J, Xie L, Bai L, Han Y, Bradley DDC, Huang W. Hierarchical Uniform Supramolecular Conjugated Spherulites with Suppression of Defect Emission. iScience 2019; 16:399-409. [PMID: 31228748 PMCID: PMC6593144 DOI: 10.1016/j.isci.2019.06.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 04/16/2019] [Accepted: 06/03/2019] [Indexed: 12/11/2022] Open
Abstract
Easily processed, well-defined, and hierarchical uniform artificial architectures with intrinsic strong crystalline emission properties are necessary for a range of light-emitting optoelectronic devices. Herein, we designed and prepared ordered supramolecular spherulites, comprising planar conformational molecules as primary structures and multiple hydrogen bonds as physical cross-links. Compared with serious aggregation-induced fluorescence quenching (up to 70%), these highly ordered architectures exhibited unique and robust crystalline emission with a high PLQY of 55%, which was much higher than those of other terfluorenes. The primary reasons for the high PLQY are the uniform exciton energetic landscape created in the planar conformation and the highly ordered molecular packing in spherulite. Meanwhile, minimal residual defect (green-band) emissions are effectively suppressed in our oriented crystalline framework, whereas the strong and stable blue light radiations are promoted. These findings may confirm that supramolecular ordered artificial architectures may offer higher control and tunability for optoelectronic applications. Coplanar molecular conformation is stabilized in supramolecular crystalline frameworks Spiro-terfluorene can self-assemble into hierarchical well-defined spherulites Ordered and uniform condensed structures suppress defect emission
Collapse
Affiliation(s)
- Changjin Ou
- School of Physical and Mathematical Sciences & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China; Center for Molecular Systems and Organic Devices (CMSOD), Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Nathan J Cheetham
- Department of Physics and Centre for Plastic Electronics, The Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, UK
| | - Jiena Weng
- School of Physical and Mathematical Sciences & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China; Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, Shaanxi, China
| | - Mengna Yu
- Center for Molecular Systems and Organic Devices (CMSOD), Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Jinyi Lin
- School of Physical and Mathematical Sciences & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China; Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, Shaanxi, China; Departments of Engineering Science and Physics and Division of Mathematical, Physical and Life Sciences, University of Oxford, 9 Parks Road, Oxford OX1 3PD, UK.
| | - Xuhua Wang
- Department of Physics and Centre for Plastic Electronics, The Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, UK
| | - Chen Sun
- Madrid Institute for Advanced Studies (IMDEA Nanociencia), Ciudad Universitaria de Cantoblanco, Calle Faraday 9, Madrid 28049, Spain
| | - Juan Cabanillas-Gonzalez
- Madrid Institute for Advanced Studies (IMDEA Nanociencia), Ciudad Universitaria de Cantoblanco, Calle Faraday 9, Madrid 28049, Spain
| | - Linghai Xie
- Center for Molecular Systems and Organic Devices (CMSOD), Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China; Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, Shaanxi, China.
| | - Lubing Bai
- School of Physical and Mathematical Sciences & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Yamin Han
- School of Physical and Mathematical Sciences & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Donal D C Bradley
- Departments of Engineering Science and Physics and Division of Mathematical, Physical and Life Sciences, University of Oxford, 9 Parks Road, Oxford OX1 3PD, UK
| | - Wei Huang
- School of Physical and Mathematical Sciences & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China; Center for Molecular Systems and Organic Devices (CMSOD), Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China; Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, Shaanxi, China.
| |
Collapse
|
36
|
Soleimaninejad H, Ghiggino KP, Smith TA, Paige MF. Fluorescence anisotropy imaging of a polydiacetylene photopolymer film. CAN J CHEM 2019. [DOI: 10.1139/cjc-2018-0360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
UV-illumination of phase-separated surfactant films prepared from mixtures of photopolymerizable 10,12-pentacosadiynoic acid and perfluorotetradecanoic acid results in the formation of fluorescent polydiacetylene fibers and aggregates. In this work, the orientation of polymer strands that comprise the resulting photopolymer structures has been probed using fluorescence anisotropy imaging in combination with defocused single-molecule fluorescence imaging. Imaging experiments indicate the presence of significant fiber-to-fiber heterogeneity, as well as anisotropy within each fiber (or aggregate), with both of these properties changing as a function of film preparation conditions. This anisotropy can be attributed to various alignments of the constituent polymer strands that comprise the larger fibers and aggregates. Intriguingly, when using defocused imaging, fiber images consisted of a series of discrete “doughnut” fluorescence emission patterns, which exhibited intermittent on–off blinking behavior; both of these properties are characteristic of individual emission transition dipoles (single molecules). Further, all of the individual emission transition dipoles had a uniform orientation with respect to the axis of the fiber, indicating a common orientation of discrete emitters in the larger polymer fiber. The implications of these results for future studies of the electronic properties of conjugated polymers in larger macroscopic systems are noted.
Collapse
Affiliation(s)
- Hamid Soleimaninejad
- ARC Centre of Excellence in Exciton Science, School of Chemistry, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Kenneth P. Ghiggino
- ARC Centre of Excellence in Exciton Science, School of Chemistry, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Trevor A. Smith
- ARC Centre of Excellence in Exciton Science, School of Chemistry, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Matthew F. Paige
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada
| |
Collapse
|
37
|
Effects of various donor:acceptor blend ratios on photophysical properties in non-fullerene organic bulk heterojunctions. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2019.01.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
38
|
Liu YD, Zhang Q, Yu XH, Liu JG, Han YC. Increasing the Content of β Phase of Poly(9,9-dioctylfluorene) by Synergistically Controlling Solution Aggregation and Extending Film-forming Time. CHINESE JOURNAL OF POLYMER SCIENCE 2019. [DOI: 10.1007/s10118-019-2259-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
39
|
Eggimann HJ, Le Roux F, Herz LM. How β-Phase Content Moderates Chain Conjugation and Energy Transfer in Polyfluorene Films. J Phys Chem Lett 2019; 10:1729-1736. [PMID: 30900449 DOI: 10.1021/acs.jpclett.9b00483] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Poly(9,9-dioctylfluorene) (PFO) is a blue-light-emitting polymer exhibiting two distinct phases, namely, the disordered "glassy" phase and a more ordered β-phase. We investigate how a systematic increase in the fraction of β-phase present in PFO films controls chain conformation, photoluminescence quantum efficiency (PLQE), and the resonant energy transfer from the glassy to the β-phase. All films are prepared by the same technique, using paraffin oil as an additive to the spin-coating solution, allowing systematic tuning of the β-phase fraction. The PFO films exhibit high PLQE with values increasing to 0.72 for increasing fractions of β-phase present, with the β-phase chain conformation becoming more planar and including more repeat units. Differences in Förster radii calculated from the overlap of steady-state absorptance and emission spectra and from time-resolved ultrafast photoluminescence transients indicate that exciton diffusion within the glassy phase plays an important role in the energy transfer process.
Collapse
Affiliation(s)
- Hannah J Eggimann
- Department of Physics , University of Oxford, Clarendon Laboratory , Parks Road , Oxford OX1 3PU , United Kingdom
| | - Florian Le Roux
- Department of Physics , University of Oxford, Clarendon Laboratory , Parks Road , Oxford OX1 3PU , United Kingdom
| | - Laura M Herz
- Department of Physics , University of Oxford, Clarendon Laboratory , Parks Road , Oxford OX1 3PU , United Kingdom
| |
Collapse
|
40
|
Letrun R, Lang B, Yushchenko O, Wilcken R, Svechkarev D, Kolodieznyi D, Riedle E, Vauthey E. Excited-state dynamics of a molecular dyad with two orthogonally-oriented fluorophores. Phys Chem Chem Phys 2018; 20:30219-30230. [PMID: 30489576 DOI: 10.1039/c8cp05356a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The excited-state dynamics of a T-shaped bichromophoric molecule, consisting of two strong fluorophores, diphenyloxazole and diphenylpyrazoline, directly linked in an orthogonal geometry, was investigated. Despite the weak coupling ensured by this geometry and confirmed by the electronic absorption spectra, this dyad exhibits only weak fluorescence in both apolar and polar solvents, with fluorescence lifetimes ranging from 200 ps in CHX to 10 ps in ACN. Ultrafast spectroscopic measurements reveal that the fluorescence quenching in polar solvents is due to the population of a charge-separated state. In non-polar solvents, this process is energetically not feasible, and a quenching due to an efficient intersystem crossing (ISC) to the triplet manifold is proposed, based on quantum-chemical calculations. This process occurs via the spin-orbit charge-transfer (SOCT) ISC mechanism, which is enabled by the charge-transfer character acquired by the S1 state of the dyad upon structural relaxation and by the orthogonal arrangement of the molecular orbitals involved in the transition. The same mechanism is proposed to explain why the recombination of the charge-separated state is faster in medium than in highly polar solvents, as well as to account for the fast decay of the lowest triplet state to the ground state.
Collapse
Affiliation(s)
- Romain Letrun
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, CH-1211 Geneva 4, Switzerland.
| | | | | | | | | | | | | | | |
Collapse
|
41
|
Coceancigh H, Higgins DA, Ito T. Optical Microscopic Techniques for Synthetic Polymer Characterization. Anal Chem 2018; 91:405-424. [PMID: 30350610 DOI: 10.1021/acs.analchem.8b04694] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Herman Coceancigh
- Department of Chemistry , Kansas State University , 213 CBC Building , Manhattan , Kansas 66506-0401 , United States
| | - Daniel A Higgins
- Department of Chemistry , Kansas State University , 213 CBC Building , Manhattan , Kansas 66506-0401 , United States
| | - Takashi Ito
- Department of Chemistry , Kansas State University , 213 CBC Building , Manhattan , Kansas 66506-0401 , United States
| |
Collapse
|
42
|
Ren J, Li X, Ma T, Liu B, Zhang H, Li T, Lu D. Dynamic Evolution from Chain Disorder to Order of PTB7 Condensed State Structures under External Fields. ACS APPLIED MATERIALS & INTERFACES 2018; 10:28093-28102. [PMID: 30058322 DOI: 10.1021/acsami.8b08938] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this research, the effect of external fields (solvent, temperature, solution concentration, and external force) on dynamic evolution from chain disorder to order of poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2- b:4,5- b']dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4- b]thiophenediyl]] (PTB7) condensed state structures was explored by UV-vis absorption spectra, atomic force microscope, and transmission electron microscopy (TEM). It was found that PTB7 main chains presented amorphous conformations induced by the poor solvent 1,2-dichloroethane. However, the local ordered aggregation appeared in amorphous conformations when the solubility of the poor solvent was again lowered by reducing temperature. It is worth noting that the size of ordered aggregation was further increased with the decrease of solution concentration or increase of external force. It was found that there were two main PTB7 absorption peaks in the UV-vis absorption spectra; we denoted A0 -0 for the intensity of the lower energy absorption peak and A0-1 for the intensity of the higher energy absorption peak. The ratio R = A0-0/ A0-1 was used to characterize the dynamic evolution from disorder to order of the PTB7 condensed state structures in absorption spectra. It increased from 0.94 for PTB7 amorphous state to 1.25 for PTB7 large-size ordered aggregation. The dynamic evolution from chain disorder to order could also be distinctly observed by TEM. It was inferred that PTB7 condensed state structures (amorphous state, local ordered aggregation, and large-scale ordered aggregation) might exist simultaneously because of the complexity of copolymer conformations. This research is meaningful to establish physical basis for the molecule design and the synthesis of materials to enhance photoelectronic device efficiency based on condensed matter physics of conjugated polymer.
Collapse
Affiliation(s)
- Jiaxuan Ren
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , No. 2699 Qianjin Avenue , Changchun 130012 , China
| | - Xiaona Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , No. 2699 Qianjin Avenue , Changchun 130012 , China
| | - Tengning Ma
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , No. 2699 Qianjin Avenue , Changchun 130012 , China
| | - Bin Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , No. 2699 Qianjin Avenue , Changchun 130012 , China
| | - Hao Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , No. 2699 Qianjin Avenue , Changchun 130012 , China
| | - Tao Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , No. 2699 Qianjin Avenue , Changchun 130012 , China
| | - Dan Lu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , No. 2699 Qianjin Avenue , Changchun 130012 , China
| |
Collapse
|
43
|
Feng QY, Li B, Zuo ZY, Xie SL, Yu MN, Liu B, Wei Y, Xie LH, Xia RD, Huang W. A Comparison Study of Physicochemical Properties and Stabilities of H-Shaped Molecule and the Corresponding Polymer. CHINESE JOURNAL OF POLYMER SCIENCE 2018. [DOI: 10.1007/s10118-018-2152-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|