1
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Richards R, Song Y, O’Connor L, Wang X, Dailing EA, Bragg AE, Ayzner AL. Exciton Transfer Between Extended Electronic States in Conjugated Inter-Polyelectrolyte Complexes. ACS APPLIED MATERIALS & INTERFACES 2024; 16. [PMID: 38289236 PMCID: PMC11056932 DOI: 10.1021/acsami.3c14657] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 12/19/2023] [Accepted: 12/25/2023] [Indexed: 05/01/2024]
Abstract
Artificial light harvesting, a process that involves converting sunlight into chemical potential energy, is considered to be a promising part of the overall solution to address urgent global energy challenges. Conjugated polyelectrolyte complexes (CPECs) are particularly attractive for this purpose due to their extended electronic states, tunable assembly thermodynamics, and sensitivity to their local environment. Importantly, ionically assembled complexes of conjugated polyelectrolytes can act as efficient donor-acceptor pairs for electronic energy transfer (EET). However, to be of use in material applications, we must understand how modifying the chemical structure of the CPE backbone alters the EET rate beyond spectral overlap considerations. In this report we investigate the dependence of the EET efficiency and rate on the electronic structure and excitonic wave function of the CPE backbone. To do so, we synthesized a series of alternating copolymers where the electronic states are systematically altered by introducing comonomers with electron withdrawing and electron-rich character while keeping the linear ionic charge density nearly fixed. We find evidence that the excitonic coupling may be significantly affected by the exciton delocalization radius, in accordance with analytical models based on the line-dipole approximation and quantum chemistry calculations. Our results imply that care should be taken when selecting CPE components for optimal CPEC EET. These results have implications for using CPECs as key components in water-based light-harvesting materials, either as standalone assemblies or as adsorbates on nanoparticles and thin films.
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Affiliation(s)
- Rachael Richards
- Department
of Chemistry and Biochemistry, University
of California Santa Cruz, Santa
Cruz, California 95064, United States
| | - Yuqi Song
- Department
of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Luke O’Connor
- Department
of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Xiao Wang
- Department
of Chemistry and Biochemistry, University
of California Santa Cruz, Santa
Cruz, California 95064, United States
| | - Eric A. Dailing
- The
Molecular Foundry, Lawrence Berkeley National
Laboratory, Berkeley, California 94720,United States
| | - Arthur E. Bragg
- Department
of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Alexander L. Ayzner
- Department
of Chemistry and Biochemistry, University
of California Santa Cruz, Santa
Cruz, California 95064, United States
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2
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Costa C, Viana A, Oliveira IS, Marques EF. Interactions between Ionic Cellulose Derivatives Recycled from Textile Wastes and Surfactants: Interfacial, Aggregation and Wettability Studies. Molecules 2023; 28:molecules28083454. [PMID: 37110688 PMCID: PMC10144465 DOI: 10.3390/molecules28083454] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/05/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Interactions between polymers (P) and surfactants (S) in aqueous solution lead to interfacial and aggregation phenomena that are not only of great interest in physical chemistry but also important for many industrial applications, such as the development of detergents and fabric softeners. Here, we synthesized two ionic derivatives-sodium carboxymethylcellulose (NaCMC) and quaternized cellulose (QC)-from cellulose recycled from textile wastes and then explored the interactions of these polymers with assorted surfactants-cationic (CTAB, gemini), anionic (SDS, SDBS) and nonionic (TX-100)-commonly used in the textile industry. We obtained surface tension curves of the P/S mixtures by fixing the polymer concentration and then increasing the surfactant concentration. In mixtures where polymer and surfactant are oppositely charged (P-/S+ and P+/S-), a strong association is observed, and from the surface tension curves, we determined the critical aggregation concentration (cac) and critical micelle concentration in the presence of polymer (cmcp). For mixtures of similar charge (P+/S+ and P-/S-), virtually no interactions are observed, with the notable exception of the QC/CTAB system, which is much more surface active than the neat CTAB. We further investigated the effect of oppositely charged P/S mixtures on hydrophilicity by measuring the contact angles of aqueous droplets on a hydrophobic textile substrate. Significantly, both P-/S+ and P+/S- systems greatly enhance the hydrophilicity of the substrate at much lower surfactant concentrations than the surfactant alone (in particular in the QC/SDBS and QC/SDS systems).
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Affiliation(s)
- Catarina Costa
- CIQUP, IMS (Institute for Molecular Sciences), Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
- CeNTI-Centre for Nanotechnology and Smart Materials, Rua Fernando Mesquita, 4760-034 Vila Nova de Famalicão, Portugal
| | - André Viana
- CIQUP, IMS (Institute for Molecular Sciences), Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
- CeNTI-Centre for Nanotechnology and Smart Materials, Rua Fernando Mesquita, 4760-034 Vila Nova de Famalicão, Portugal
| | - Isabel S Oliveira
- CIQUP, IMS (Institute for Molecular Sciences), Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Eduardo F Marques
- CIQUP, IMS (Institute for Molecular Sciences), Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
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3
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Aguado R, Santos ARMG, Vallejos S, Valente AJM. Paper-Based Probes with Visual Response to Vapors from Nitroaromatic Explosives: Polyfluorenes and Tertiary Amines. Molecules 2022; 27:molecules27092900. [PMID: 35566254 PMCID: PMC9101589 DOI: 10.3390/molecules27092900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 04/28/2022] [Accepted: 04/30/2022] [Indexed: 01/25/2023] Open
Abstract
Although it is well-known that nitroaromatic compounds quench the fluorescence of different conjugated polymers and form colored Meisenheimer complexes with proper nucleophiles, the potential of paper as a substrate for those macromolecules can be further developed. This work undertakes this task, impregnating paper strips with a fluorene-phenylene copolymer with quaternary ammonium groups, a bisfluorene-based cationic polyelectrolyte, and poly(2-(dimethylamino)ethyl methacrylate) (polyDMAEMA). Cationic groups make the aforementioned polyfluorenes attachable to paper, whose surface possesses a slightly negative charge and avoid interference from cationic quenchers. While conjugated polymers had their fluorescence quenched with nitroaromatic vapors in a non-selective way, polyDMAEMA-coated papers had a visual response that was selective to 2,4,6-trinitrotoluene (TNT), and that could be easily identified, and even quantified, under natural light. Far from implying that polyfluorenes should be ruled out, it must be taken into account that TNT-filled mines emit vapors from 2,4-dinitrotoluene (DNT) and dinitrobenzene isomers, which are more volatile than TNT itself. Atmospheres with only 790 ppbv TNT or 277 ppbv DNT were enough to trigger a distinguishable response, although the requirement for certain exposure times is an important limitation.
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Affiliation(s)
- Roberto Aguado
- CQC, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal; (R.A.); (A.R.M.G.S.); (S.V.)
- LEPAMAP-PRODIS Research Group, University of Girona, M. Aurèlia Capmany 61, 17003 Girona, Spain
| | - A. Rita M. G. Santos
- CQC, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal; (R.A.); (A.R.M.G.S.); (S.V.)
| | - Saúl Vallejos
- CQC, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal; (R.A.); (A.R.M.G.S.); (S.V.)
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza de Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Artur J. M. Valente
- CQC, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal; (R.A.); (A.R.M.G.S.); (S.V.)
- Correspondence:
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4
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Klučáková M, Havlíková M, Mravec F, Pekař M. Diffusion of dyes in polyelectrolyte-surfactant hydrogels. RSC Adv 2022; 12:13242-13250. [PMID: 35520138 PMCID: PMC9062887 DOI: 10.1039/d2ra02379b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 04/25/2022] [Indexed: 11/21/2022] Open
Abstract
In this work, hydrogels formed by interaction of biopolymeric electrolytes and oppositely charged surfactants are studied from the point of view of their ability to incorporate model hydrophobic dyes in their micelle-like structure. Two types of hydrogels were investigated. The first type was based on cationized dextran cross-linked by sodium dodecylsulphate. The second type was prepared by interactions of hyaluronan with carbethoxypendecinium bromide (septonex). Nile red and Atto488 were used as model dyes for the diffusion experiments. The dyes were dissolved in two different media: surfactant and physiological saline. The diffusion of dyes into hydrogel was monitored over time. Effective diffusion coefficients were determined. It was found that their values are strongly influenced by the hydrogel character, the types of dye used and the solvent. The obtained effective coefficients were higher in comparison with the values determined for the diffusion in the opposite direction (release from the hydrogel). The dyes are presented as free in physiological saline and in the form of micelles or micelle aggregates in surfactants. During diffusion into the hydrogel, they can be gradually incorporated in a "pearl necklace structure" which suppresses their mobility. In contrast, this partial immobilization of dyes can increase the concentration gradient which is a driving force of diffusion. Also, the gradual incorporation of dyes into hydrogel structures influences the values of the effective diffusion coefficients.
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Affiliation(s)
- Martina Klučáková
- Brno University of Technology, Faculty of Chemistry Purkyňova 118 612 00 Brno Czech Republic
| | - Martina Havlíková
- Brno University of Technology, Faculty of Chemistry Purkyňova 118 612 00 Brno Czech Republic
| | - Filip Mravec
- Brno University of Technology, Faculty of Chemistry Purkyňova 118 612 00 Brno Czech Republic
| | - Miloslav Pekař
- Brno University of Technology, Faculty of Chemistry Purkyňova 118 612 00 Brno Czech Republic
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5
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Polymer/surfactant mixtures as dispersants and non-covalent functionalization agents of multiwalled carbon nanotubes: Synergism, morphological characterization and molecular picture. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118338] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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6
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Li Y, Ma S, Fang X, Wu C, Chen H, Zhang W, Cao M, Liu J. Water hardness effect on the association and adsorption of cationic cellulose derivative/anionic surfactant mixtures for fabric softener application. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Melro E, Valente AJM, Antunes FE, Romano A, Medronho B. Enhancing Lignin Dissolution and Extraction: The Effect of Surfactants. Polymers (Basel) 2021; 13:714. [PMID: 33652842 PMCID: PMC7956272 DOI: 10.3390/polym13050714] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 02/03/2023] Open
Abstract
The dissolution and extraction of lignin from biomass represents a great challenge due to the complex structure of this natural phenolic biopolymer. In this work, several surfactants (i.e., non-ionic, anionic, and cationic) were used as additives to enhance the dissolution efficiency of model lignin (kraft) and to boost lignin extraction from pine sawdust residues. To the best of our knowledge, cationic surfactants have never been systematically used for lignin dissolution. It was found that ca. 20 wt.% of kraft lignin is completely solubilized using 1 mol L-1 octyltrimethylammonium bromide aqueous solution. A remarkable dissolution efficiency was also obtained using 0.5 mol L-1 polysorbate 20. Furthermore, all surfactants used increased the lignin extraction with formic acid, even at low concentrations, such as 0.01 and 0.1 mol L-1. Higher concentrations of cationic surfactants improve the extraction yield but the purity of extracted lignin decreases.
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Affiliation(s)
- Elodie Melro
- Department of Chemistry, University of Coimbra, CQC, Rua Larga, 3004-535 Coimbra, Portugal; (A.J.M.V.); (F.E.A.)
| | - Artur J. M. Valente
- Department of Chemistry, University of Coimbra, CQC, Rua Larga, 3004-535 Coimbra, Portugal; (A.J.M.V.); (F.E.A.)
| | - Filipe E. Antunes
- Department of Chemistry, University of Coimbra, CQC, Rua Larga, 3004-535 Coimbra, Portugal; (A.J.M.V.); (F.E.A.)
| | - Anabela Romano
- MED—Mediterranean Institute for Agriculture, Environment and Development, Faculdade de Ciências e Tecnologia, Campus de Gambelas, Universidade do Algarve, Ed. 8, 8005-139 Faro, Portugal; (A.R.); (B.M.)
| | - Bruno Medronho
- MED—Mediterranean Institute for Agriculture, Environment and Development, Faculdade de Ciências e Tecnologia, Campus de Gambelas, Universidade do Algarve, Ed. 8, 8005-139 Faro, Portugal; (A.R.); (B.M.)
- FSCN, Surface and Colloid Engineering, Mid Sweden University, SE-851 70 Sundsvall, Sweden
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8
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Oliveira IS, Silva JP, Araújo MJ, Gomes AC, Marques EF. Biocompatible thermosensitive nanostructures and hydrogels of an amino acid-derived surfactant and hydroxyethyl cellulose polymers. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114540] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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9
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Filova B, Musilova L, Mracek A, Ramos ML, Veríssimo LM, Valente AJ, Ribeiro AC. Effect of sodium salts on diffusion of poly(vinyl alcohol) in aqueous solutions. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Wetting behavior of oppositely charged polystyrene sulfonate/hexadecyl trimethyl ammonium bromide complexes near critical aggregation concentration on carbonate reservoir rocks. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Liu X, Yu Q, Song A, Dong S, Hao J. Progress in nuclear magnetic resonance studies of surfactant systems. Curr Opin Colloid Interface Sci 2020. [DOI: 10.1016/j.cocis.2019.10.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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12
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Valente AJ, Söderman O. Do the solvent properties affect the propensity for self-association of α-cyclodextrin? Insights from NMR self-diffusion. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Transport of a model diffusion probe in polyelectrolyte-surfactant hydrogels. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.04.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Zeman CJ, Schanze KS. Elucidating the Effects of Solvating Side Chains on the Rigidity and Aggregation Tendencies of Conjugated Polymers with Molecular Dynamics Simulations Using DFT Tight Binding. J Phys Chem A 2019; 123:3293-3299. [DOI: 10.1021/acs.jpca.8b12169] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Charles J. Zeman
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Kirk S. Schanze
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249, United States
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15
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Effects of Charge Density on Photophysics and Aggregation Behavior of Anionic Fluorene-Arylene Conjugated Polyelectrolytes. Polymers (Basel) 2018; 10:polym10030258. [PMID: 30966293 PMCID: PMC6414976 DOI: 10.3390/polym10030258] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 02/23/2018] [Accepted: 02/26/2018] [Indexed: 01/19/2023] Open
Abstract
Three anionic fluorene-based alternating conjugated polyelectrolytes (CPEs) have been synthesized that have 9,9-bis(4-phenoxy-butylsulfonate) fluorene-2,7-diyl and 1,4-phenylene (PBS-PFP), 4,4′-biphenylene (PBS-PFP2), or 4,4″-p-terphenylene (PBS-PFP3) groups, and the effect of the length of the oligophenylene spacer on their aggregation and photophysics has been studied. All form metastable dispersions in water, but can be solubilized using methanol, acetonitrile, or dioxane as cosolvents. This leads to increases in their emission intensities and blue shifts in fluorescence maxima due to break-up of aggregates. In addition, the emission maximum shifts to the blue and the loss of vibronic structure are observed when the number of phenylene rings is increased. Debsity Functional Theory (DFT) calculations suggest that this is due to increasing conformational flexibility as the number of phenylene rings increases. This is supported by increasing amplitude in the fast component in the fluorescence decay. The nonionic surfactant n-dodecylpentaoxyethylene glycol ether (C12E5) also breaks up aggregates, as seen by changes in fluorescence intensity and maximum. However, the loss in vibrational structure is less pronounced in this case, possibly due to a more rigid environment in the mixed surfactant-CPE aggregates. Further information on the aggregates formed with C12E5 was obtained by electrical conductivity measurements, which showed an initial increase in specific conductivity upon addition of surfactants, while at higher surfactant/CPE molar ratios a plateau was observed. The specific conductance in the plateau region decreased in the order PBS-PFP3 < PBS-PFP2 < PBS-PFP, in agreement with the change in charge density on the CPE. The reverse process of aggregate formation has been studied by injecting small volumes of solutions of CPEs dissolved at the molecular level in a good solvent system (50% methanol-water) into the poor solvent, water. Aggregation was monitored by changes in both fluorescence and light scattering. The rate of aggregation increases with hydrophobicity and concentration of sodium chloride but is only weakly dependent on temperature.
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16
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Monteserín M, Burrows HD, Valente AJM, Pais AACC, Di Paolo RE, Maçanita AL, Tapia MJ. Fluorescence Enhancement of a Cationic Fluorene-Phenylene Conjugated Polyelectrolyte Induced by Nonionic n-Alkyl Polyoxyethylene Surfactants. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:13350-13363. [PMID: 29112441 DOI: 10.1021/acs.langmuir.7b02818] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The modulation of conjugated polyelectrolyte fluorescence response by nonionic surfactants is dependent on the structures of the surfactant and polymer, polymer average molecular weight, and polyelectrolyte-surfactant interactions. In this paper, we study the effect of nonionic n-alkyl polyoxyethylene surfactants (CiEj) with different alkyl chain lengths (CiE5 with i = 6, 8, 10, and 12) and number of oxyethylene groups (C12Ej with j = 5, 7, and 9) on the photophysics and ionic conductivity of poly{[9,9-bis(6'-N,N,N-trimethylammonium)-hexyl]-2,7-fluorene-alt-1,4-phenylene}bromide (HTMA-PFP) in dimethyl sulfoxide-water 4% (v/v). Molecular dynamics simulations show that HTMA-PFP chains tend to approach as the simulation evolves. However, the minimum distance between the polymer centers of mass increases upon addition of the surfactant and grows with both the surfactant alkyl chain length and the number of oxyethylene groups, although there are no specific polymer-surfactant interactions. A significant increase in the polymer emission intensity has been observed at surfactant concentrations around their critical micelle concentrations (cmcs), which is attributed to polymer aggregate disruption. However, an increase in the solution conductivity for concentrations above the C12E5 cmc has only been observed for the HTMA-PFP/C12E5 system. The enhancement of fluorescence emission intensity and conductivity upon surfactant addition increases with polymer average molecular weights and seems to be controlled by the polymer-surfactant proximity, which is maximum for C10E5 and C12E5.
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Affiliation(s)
- María Monteserín
- Departamento de Química, Universidad de Burgos , Plaza Misael Bañuelos, Burgos 09001, Spain
| | - Hugh D Burrows
- Centro de Química de Coimbra (CQC), Department of Chemistry, University of Coimbra , 3004-535 Coimbra, Portugal
| | - Artur J M Valente
- Centro de Química de Coimbra (CQC), Department of Chemistry, University of Coimbra , 3004-535 Coimbra, Portugal
| | - A A C C Pais
- Centro de Química de Coimbra (CQC), Department of Chemistry, University of Coimbra , 3004-535 Coimbra, Portugal
| | - Roberto E Di Paolo
- Departamento de Engenharia Química e Biologica, Instituto Superior Técnico (IST) , Avenida Rovisco Pais, P1049-001 Lisboa, Portugal
| | - Antonio L Maçanita
- Departamento de Engenharia Química e Biologica, Instituto Superior Técnico (IST) , Avenida Rovisco Pais, P1049-001 Lisboa, Portugal
| | - María J Tapia
- Departamento de Química, Universidad de Burgos , Plaza Misael Bañuelos, Burgos 09001, Spain
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17
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Li X, Wang YC, Zhu L, Zhang W, Wang HQ, Fang J. Improving Efficiency and Reproducibility of Perovskite Solar Cells through Aggregation Control in Polyelectrolytes Hole Transport Layer. ACS APPLIED MATERIALS & INTERFACES 2017; 9:31357-31361. [PMID: 28879759 DOI: 10.1021/acsami.7b11977] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Here, we report that the performance of perovskite solar cells (PSCs) can be improved by aggregation control in polyelectrolytes interlayer. Through counterions tailoring and solvent optimization, the strong aggregation of polyelectrolytes P3CT-Na can be broken up by P3CT-CH3NH2. When using P3CT-CH3NH2 to replace P3CT-Na as hole transport layer, the average efficiency is greatly improved from 16.9 to 18.9% (highest 19.6%). Importantly, efficiency over 15% is obtained in 1 cm2 devices with P3CT-CH3NH2, ∼50% higher than that with P3CT-Na (10.3%). Our work demonstrates the important role of aggregation control in polyelectrolytes interlayer, providing new opportunities to promote its application in PSCs.
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Affiliation(s)
- Xiaodong Li
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China
| | - Ying-Chiao Wang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China
| | - Liping Zhu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China
| | - Wenjun Zhang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Hai-Qiao Wang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Junfeng Fang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo 315201, China
- University of Chinese Academy of Sciences , Beijing 100049, China
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18
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Knaapila M, Stewart B, Costa T, Rogers SE, Pragana J, Fonseca SM, Valente AJM, Ramos ML, Murtinho D, Pereira JC, Mallavia R, Burrows HD. Incorporation of a Cationic Conjugated Polyelectrolyte CPE within an Aqueous Poly(vinyl alcohol) Sol. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01895] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Matti Knaapila
- Department
of Physics, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Beverly Stewart
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Telma Costa
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Sarah E. Rogers
- Rutherford
Appleton
Laboratory, ISIS STFC, Chilton OX11 0QX, Oxon, U.K
| | - Joana Pragana
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Sofia M. Fonseca
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Artur J. M. Valente
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - M. Luisa Ramos
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Dina Murtinho
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Jorge Costa Pereira
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Ricardo Mallavia
- Instituto
de Biología Molecular y Celular, Universidad Miquel Hernandez de Elche, Avda. de la Universidad s/n, 03202 Elche, Spain
| | - Hugh D. Burrows
- Department
of Chemistry and Coimbra Chemistry Centre, University of Coimbra, 3004-535 Coimbra, Portugal
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Smart borax complexes starting from anionic surfactant in association with unlabeled or fluorescently labeled poly(acrylic acid)s. Colloid Polym Sci 2016. [DOI: 10.1007/s00396-016-3848-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kahveci Z, Vázquez-Guilló R, Martínez-Tomé MJ, Mallavia R, Mateo CR. New Red-Emitting Conjugated Polyelectrolyte: Stabilization by Interaction with Biomolecules and Potential Use as Drug Carriers and Bioimaging Probes. ACS APPLIED MATERIALS & INTERFACES 2016; 8:1958-1969. [PMID: 26709951 DOI: 10.1021/acsami.5b10167] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The design and development of fluorescent conjugated polyelectrolytes (CPEs) emitting in the red region of the visible spectrum is at present of great interest for bioimaging studies. However, despite the wide variety of CPEs available, stable bright red-emitters remain scarce due to their low solubility and instability in aqueous media, consequently limiting their applications. In this work, we have synthesized and characterized a new red-emitting cationic conjugated polyelectrolyte copoly-{[9,9-bis(6'-N,N,N-trimethylammonium)hexyl]-2,7-(fluorene)-alt-1,4-(naphtho[2,3c]-1,2,5-thiadiazole)} bromide (HTMA-PFNT), based on the incorporation of naphtha[2,3c][1,2,5] thiadiazole on fluorene backbone to increase the bathochromic emission, extending the conjugation length in the polymer backbone. Water stabilization was achieved by binding the polyelectrolyte to two different biological systems which are currently used as nanocarriers: human serum albumin (HSA) and lipid vesicles. Using both systems, stable nanostructures of different composition were obtained and their properties were characterized. The properties of the protein-based nanoparticles are consistent with polyelectrolyte aggregates covered with HSA molecules, while the liposome system is composed of lipid vesicles coated with polyelectrolyte chains partially inserted in the bilayer. Both protein and vesicle structural integrity were not affected after their interaction with HTMA-PFNT, as well as the carrier properties, allowing for the binding and transport of ligands. In addition, the nanoparticles displayed the ability of labeling the cell membrane of living cells. All these results extend the potential applications of these novel multifunctional nanoparticles as therapeutic carriers and bioimaging probes.
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Affiliation(s)
- Zehra Kahveci
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández , 03202 Elche, Alicante, Spain
| | - Rebeca Vázquez-Guilló
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández , 03202 Elche, Alicante, Spain
| | - Maria José Martínez-Tomé
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández , 03202 Elche, Alicante, Spain
| | - Ricardo Mallavia
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández , 03202 Elche, Alicante, Spain
| | - C Reyes Mateo
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández , 03202 Elche, Alicante, Spain
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Zhang Y, Gao X, Yan Y, Wang J, Huang J. Elegant cooperativity of noncovalent interactions in effective removal of Cu–EDTA from water via stepwise addition of polymer and surfactant. RSC Adv 2016. [DOI: 10.1039/c6ra14645g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The elegant cooperativity of electrostatic interaction, coordinating interaction, and hydrophobic effects allows facile flocculation of Cu–EDTA through the stepwise addition of polyethyleneimine (PEI) and sodium dodecyl sulphate (SDS).
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Affiliation(s)
- Yanan Zhang
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi
- China
| | - Xuedong Gao
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi
- China
| | - Yun Yan
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi
- China
| | - Jide Wang
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi
- China
| | - Jianbin Huang
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi
- China
- Beijing National Laboratory for Molecular Sciences (BNLMS)
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