1
|
Özen B, Fadaei Tirani F, Schenk K, Lin KH, Scopelliti R, Corminboeuf C, Frauenrath H. Structure-Property Relationships in Bithiophenes with Hydrogen-Bonded Substituents. Chemistry 2021; 27:3348-3360. [PMID: 32894599 DOI: 10.1002/chem.202003113] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/24/2020] [Indexed: 11/10/2022]
Abstract
The use of crystal engineering to control the supramolecular arrangement of π-conjugated molecules in the solid-state is of considerable interest for the development of novel organic electronic materials. In this study, we investigated the effect of combining of two types of supramolecular interaction with different geometric requirements, amide hydrogen bonding and π-interactions, on the π-overlap between calamitic π-conjugated cores. To this end, we prepared two series of bithiophene diesters and diamides with methylene, ethylene, or propylene spacers between the bithiophene core and the functional groups in their terminal substituents. The hydrogen-bonded bithiophene diamides showed significantly denser packing of the bithiophene cores than the diesters and other known α,ω-disubstituted bithiophenes. The bithiophene packing density reach a maximum in the bithiophene diamide with an ethylene spacer, which had the smallest longitudinal bithiophene displacement and infinite 1D arrays of electronically conjugated, parallel, and almost linear N-H⋅⋅⋅O=C hydrogen bonds. The synergistic hydrogen bonding and π-interactions were attributed to the favorable conformation mechanics of the ethylene spacer and resulted in H-type spectroscopic aggregates in solid-state absorption spectroscopy. These results demonstrate that the optoelectronic properties of π-conjugated materials in the solid-state may be tailored systematically by side-chain engineering, and hence that this approach has significant potential for the design of organic and polymer semiconductors.
Collapse
Affiliation(s)
- Bilal Özen
- École Polytechnique Fédérale de Lausanne (EPFL), Institute of Materials, Laboratory of Macromolecular and Organic Materials, EPFL-STI-IMX-LMOM, MXG 037, Station 12, 1015, Lausanne, Switzerland
| | - Farzaneh Fadaei Tirani
- BCH 2111, Batochime UNIL, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Avenue Forel 2, 1015, Lausanne, Switzerland
| | - Kurt Schenk
- Institute of Physics, PH L1 500, Station 3, École Polytechnique Fédérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Kun-Han Lin
- BCH 5312, Batochime UNIL, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Avenue Forel 2, 1015, Lausanne, Switzerland
| | - Rosario Scopelliti
- BCH 2111, Batochime UNIL, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Avenue Forel 2, 1015, Lausanne, Switzerland
| | - Clémence Corminboeuf
- BCH 5312, Batochime UNIL, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Avenue Forel 2, 1015, Lausanne, Switzerland
| | - Holger Frauenrath
- École Polytechnique Fédérale de Lausanne (EPFL), Institute of Materials, Laboratory of Macromolecular and Organic Materials, EPFL-STI-IMX-LMOM, MXG 037, Station 12, 1015, Lausanne, Switzerland
| |
Collapse
|
2
|
Li S, Wang D, Xiao H, Zhang H, Cao S, Chen L, Ni Y, Huang L. Ultra-low pressure cellulose-based nanofiltration membrane fabricated on layer-by-layer assembly for efficient sodium chloride removal. Carbohydr Polym 2020; 255:117352. [PMID: 33436192 DOI: 10.1016/j.carbpol.2020.117352] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/21/2020] [Accepted: 10/29/2020] [Indexed: 10/23/2022]
Abstract
Cellulose is a renewable, biodegradable, biocompatible, and sustainable material. A bamboo cellulose-based nanofiltration membrane (LBL-NF-CS/BCM) was prepared with a combination of layer-by-layer assembly and spraying methods. The chemical structure, morphology, and surface charge of the resultant LBL-NF-CS/BCM composite membranes were characterized based on Thermo Gravimetric Analysis (TGA), X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), and X-ray Photoelectron Spectroscopy Scanning (XPS). The nanofiltration performance of the LBL-NF-CS/BCM composite membranes was evaluated using 500 ppm NaCl solutions under 0.3 MPa pressure. It was found that the LBL-NF-CS/BCM composite membranes had a rejection rate of about 36.11 % against a 500 ppm NaCl solution under the conditions tested, and membrane flux of about 12.08 L/(m2 h) was reached. The combined layer-by-layer assembly and spraying provides a scalable and convenient process concept for nanofiltration membrane fabrication.
Collapse
Affiliation(s)
- Shi Li
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou, 510650, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Dong Wang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - He Xiao
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Hui Zhang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Shilin Cao
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Lihui Chen
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Yonghao Ni
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Department of Chemical Engineering and Limerick Pulp and Paper Centre, University of New Brunswick, Fredericton, New Brunswick, E3B 5A3, Canada.
| | - Liulian Huang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| |
Collapse
|
3
|
Gebers J, Özen B, Hartmann L, Schaer M, Suàrez S, Bugnon P, Scopelliti R, Steinrück H, Konovalov O, Magerl A, Brinkmann M, Petraglia R, Silva P, Corminboeuf C, Frauenrath H. Crystallization and Organic Field‐Effect Transistor Performance of a Hydrogen‐Bonded Quaterthiophene. Chemistry 2020; 26:10265-10275. [DOI: 10.1002/chem.201904562] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 04/23/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Jan Gebers
- Institute of Materials École Polytechnique Fédérale de Lausanne (EPFL), EPFL-STI-IMX-LMOM, MXG 135 Station 12 1015 Lausanne Switzerland
| | - Bilal Özen
- Institute of Materials École Polytechnique Fédérale de Lausanne (EPFL), EPFL-STI-IMX-LMOM, MXG 135 Station 12 1015 Lausanne Switzerland
| | - Lucia Hartmann
- Institute of Materials École Polytechnique Fédérale de Lausanne (EPFL), EPFL-STI-IMX-LMOM, MXG 135 Station 12 1015 Lausanne Switzerland
| | - Michel Schaer
- Institute of Materials École Polytechnique Fédérale de Lausanne (EPFL), EPFL-STI-IMX-LMOM, MXG 135 Station 12 1015 Lausanne Switzerland
| | - Stéphane Suàrez
- Institute of Materials École Polytechnique Fédérale de Lausanne (EPFL), EPFL-STI-IMX-LMOM, MXG 135 Station 12 1015 Lausanne Switzerland
| | - Philippe Bugnon
- Institute of Condensed Matter Physics École Polytechnique Fédérale de Lausanne (EPFL), EPFL-PH J0 491 Station 3 1015 Lausanne Switzerland
| | - Rosario Scopelliti
- Institute of Chemical Sciences and Engineering École Polytechnique Fédérale de Lausanne (EPFL), EPFL-BCH 2111, Batochime UNIL Avenue Forel 2 1015 Lausanne Switzerland
| | - Hans‐Georg Steinrück
- Crystallography and Structural Physics University of Erlangen-Nürnberg Staudtstrasse 3 91058 Erlangen Germany
- Present address: Department Chemie Universität Paderborn Warburger Strasse 100 33098 Paderborn Germany
| | - Oleg Konovalov
- European Synchrotron Radiation Facility (ESRF) 6 rue Jules Horowitz, BP220 38043 Grenoble Cedex France
| | - Andreas Magerl
- Crystallography and Structural Physics University of Erlangen-Nürnberg Staudtstrasse 3 91058 Erlangen Germany
| | - Martin Brinkmann
- Institut Charles Sadron CNRS Université de Strasbourg Rue du Loess 23 67034 Strasbourg France
| | - Riccardo Petraglia
- Institute of Chemical Sciences and Engineering École Polytechnique Fédérale de Lausanne (EPFL), EPFL-BCH 5312, Batochime UNIL Avenue Forel 2 1015 Lausanne Switzerland
| | - Piotr Silva
- Institute of Chemical Sciences and Engineering École Polytechnique Fédérale de Lausanne (EPFL), EPFL-BCH 5312, Batochime UNIL Avenue Forel 2 1015 Lausanne Switzerland
- present address: Department of Energy Conversion and Storage Technical University of Denmark Anker Engelunds Vej 301 2800 Kongens Lyngby Denmark
| | - Clémence Corminboeuf
- Institute of Chemical Sciences and Engineering École Polytechnique Fédérale de Lausanne (EPFL), EPFL-BCH 5312, Batochime UNIL Avenue Forel 2 1015 Lausanne Switzerland
| | - Holger Frauenrath
- Institute of Materials École Polytechnique Fédérale de Lausanne (EPFL), EPFL-STI-IMX-LMOM, MXG 135 Station 12 1015 Lausanne Switzerland
| |
Collapse
|
4
|
Voronin DV, Grigoriev D, Möhwald H, Shchukin DG, Gorin DA. Nonuniform Growth of Composite Layer-by-Layer Assembled Coatings via Three-Dimensional Expansion of Hydrophobic Magnetite Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2015; 7:28353-28360. [PMID: 26647922 DOI: 10.1021/acsami.5b08950] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Nanocomposite coatings are promising for a range of practical applications, and layer-by-layer assembly (LbL) is a versatile tool for nanocomposite formation. However, conventional LbL is a quite laborious procedure taking a lot of time to reach a sufficient thickness of the coatings required for practical applications. Herein, we proposed a novel variant of the LbL approach based on the deposition of hydrophilic polyelectrolyte molecules from a polar solvent and hydrophobic magnetite nanoparticles (NPs) from a nonpolar dispersion medium with an intermediate washing in the same polar solvent. The composite multilayers formed in this way exhibit exponential growth of the thickness and mass. On the basis of quartz crystal microbalance (QCM), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), atomic force microscopy (AFM), and surface profile measurements, we propose a model describing the driving force of multilayer formation and the factors leading to nonlinear growth of their mass and thickness. The results allow one to expand the understanding of the mechanism of the LbL assembly in order to form multifunctional nanocomposites in a more efficient way.
Collapse
Affiliation(s)
- Denis V Voronin
- Department of Nano- and Biomedical Technologies, Saratov State University , Saratov 410012, Russia
| | - Dmitry Grigoriev
- Department of Interfaces, Max-Planck Institute of Colloids and Interfaces , Potsdam D14476, Germany
| | - Helmuth Möhwald
- Department of Interfaces, Max-Planck Institute of Colloids and Interfaces , Potsdam D14476, Germany
| | - Dmitry G Shchukin
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool , Liverpool L69 7ZD, United Kingdom
| | - Dmitry A Gorin
- Department of Nano- and Biomedical Technologies, Saratov State University , Saratov 410012, Russia
| |
Collapse
|
5
|
Lam KH, Foong TRB, Ooi ZE, Zhang J, Grimsdale AC, Lam YM. Enhancing the performance of solution-processed bulk-heterojunction solar cells using hydrogen-bonding-induced self-organization of small molecules. ACS APPLIED MATERIALS & INTERFACES 2013; 5:13265-13274. [PMID: 24215496 DOI: 10.1021/am4042614] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Small-molecule solar-cell performance is highly sensitive to the crystallinity and intermolecular connectivity of the molecules. In order to enhance the crystallinity for the solution-processed small molecule, it is possible to make use of carboxylic acid end-functional groups to drive hydrogen-bonding-induced π-π stacking of conjugated molecules. Herein, we report the synthesis and characterization of quarterthiophenes with carboxylic acid as end groups. The formation of hydrogen bonds between neighboring acid groups gives rise to a pseudo-polymeric structure in the molecules, which leads to substantial improvement in the organization and crystallinity of the active layers. This resulted in a four-fold increase in the hole mobility and a two-fold improvement in the performance of the solar cell device for the acid-functionalized molecule, compared to its ester analogue. More importantly, optimal device performance for the acid-functionalized molecule was achieved for the as-cast film, thereby reducing the reliance on thermal annealing and solvent additives.
Collapse
Affiliation(s)
- Kwan Hang Lam
- School of Materials Science and Engineering, Nanyang Technological University , Blk N4.1, Nanyang Avenue, Singapore 639798
| | | | | | | | | | | |
Collapse
|