1
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Chen S, Zheng H, Liu X, Peng J. Tailoring Co-crystallization over Microphase Separation in Conjugated Block Copolymers via Rational Film Processing for Field-Effect Transistors. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c02048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Shuwen Chen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Hao Zheng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Xiaofeng Liu
- Department of Chemistry, Fudan University, Shanghai 200438, China
| | - Juan Peng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
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2
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Kim H, Lee J, Kim T, Cho M, Choi T. Precision Synthesis of Various Low‐Bandgap Donor–Acceptor Alternating Conjugated Polymers via Living Suzuki–Miyaura Catalyst‐Transfer Polymerization. Angew Chem Int Ed Engl 2022; 61:e202205828. [DOI: 10.1002/anie.202205828] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Hwangseok Kim
- Department of Chemistry Seoul National University Seoul 08826 Republic of Korea
| | - Jaeho Lee
- Department of Chemistry Seoul National University Seoul 08826 Republic of Korea
| | - Taehyun Kim
- Department of Chemistry Seoul National University Seoul 08826 Republic of Korea
| | - Minyoung Cho
- Department of Chemistry Seoul National University Seoul 08826 Republic of Korea
| | - Tae‐Lim Choi
- Department of Chemistry Seoul National University Seoul 08826 Republic of Korea
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3
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Zhang D, Liang D, Gu L, Zhang H. Pyrrolopyrrole-Based Aza-BODIPY Small Molecules for Organic Field-Effect Transistors. Front Chem 2022; 10:938353. [PMID: 35832464 PMCID: PMC9271750 DOI: 10.3389/fchem.2022.938353] [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: 05/07/2022] [Accepted: 05/16/2022] [Indexed: 11/13/2022] Open
Abstract
Diketopyrrolopyrrole (DPP), due to its good planarity, π-conjugate structure, thermal stability, and structural modifiability, has received much attention from the scientific community as an excellent semiconductor material for its applications in the field of optoelectronics, such as organic solar cells, organic photovoltaics, and organic field effect transistors. In this study, a new small molecule, pyrrolopyrrole aza-BODIPY (PPAB), based on the thiophene-substituted DPP structure was developed using the Schiff-base formation reaction of DPP and heteroaromatic amines. Absorption spectroscopy, electrochemistry, X-ray diffraction, molecular theoretical simulation calculation were performed, and organic field-effect transistor properties based on PPAB were investigated. It was found that PPAB exhibits a broad absorption range in the visible and near-infrared regions, which is attributed to its long-range conjugate structure. In addition, it is worth noting that PPAB has multiple F atoms resulting in the low LUMO level, which is conducive to the injection and transportation of charge carriers between the semiconductor layer and the electrode. Meanwhile, its hole carrier mobility is up to 1.3 × 10−3 cm2 V−1 s−1 due to its large conjugate structure, good intramolecular charge transfer effect, and high degree of coplanarity. In this study, a new chromophore with electron-deficient ability for designing high-performance semiconductors was successfully synthesized.
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Affiliation(s)
- Daohai Zhang
- School of Chemical Engineering of Guizhou Minzu University, Guiyang, China
- *Correspondence: Daohai Zhang, ; Haichang Zhang,
| | - Dongxu Liang
- Key Laboratory of Rubber-Plastics of Ministry of Education/Shandong Province (QUST), School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Liang Gu
- Key Laboratory of Rubber-Plastics of Ministry of Education/Shandong Province (QUST), School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Haichang Zhang
- Key Laboratory of Rubber-Plastics of Ministry of Education/Shandong Province (QUST), School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
- *Correspondence: Daohai Zhang, ; Haichang Zhang,
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4
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Kim H, Lee J, Kim T, Cho M, Choi T. Precision Synthesis of Various Low‐Bandgap Donor–Acceptor Alternating Conjugated Polymers via Living Suzuki–Miyaura Catalyst‐Transfer Polymerization. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hwangseok Kim
- Department of Chemistry Seoul National University Seoul 08826 Republic of Korea
| | - Jaeho Lee
- Department of Chemistry Seoul National University Seoul 08826 Republic of Korea
| | - Taehyun Kim
- Department of Chemistry Seoul National University Seoul 08826 Republic of Korea
| | - Minyoung Cho
- Department of Chemistry Seoul National University Seoul 08826 Republic of Korea
| | - Tae‐Lim Choi
- Department of Chemistry Seoul National University Seoul 08826 Republic of Korea
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5
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Yun HS, Kim DH, Kwon HG, Choi HK. Centrifugal Force-Induced Alignment in the Self-Assembly of Block Copolymers. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hyun Su Yun
- Division of Advanced Materials Engineering, Kongju National University, Cheonan 31080, Republic of Korea
| | - Dong Hwan Kim
- Division of Advanced Materials Engineering, Kongju National University, Cheonan 31080, Republic of Korea
| | - Hong Gu Kwon
- Division of Advanced Materials Engineering, Kongju National University, Cheonan 31080, Republic of Korea
| | - Hong Kyoon Choi
- Center for Advanced Materials and Parts of Powder, Kongju National University, Cheonan 31080, Republic of Korea
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6
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Ahluwalia G, Subbiah J, Mitchell VD, Saker Neto N, Jones DJ. One-Pot Synthesis of Fully Conjugated Amphiphilic Block Copolymers Using Asymmetrically Functionalized Push–Pull Monomers. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gagandeep Ahluwalia
- School of Chemistry, University of Melbourne, Bio21 Institute, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Jegadesan Subbiah
- School of Chemistry, University of Melbourne, Bio21 Institute, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Valerie D. Mitchell
- School of Chemistry, University of Melbourne, Bio21 Institute, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - Nicolau Saker Neto
- School of Chemistry, University of Melbourne, Bio21 Institute, 30 Flemington Road, Parkville, Victoria 3010, Australia
| | - David J. Jones
- School of Chemistry, University of Melbourne, Bio21 Institute, 30 Flemington Road, Parkville, Victoria 3010, Australia
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7
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Wang D, Yang Z, Liu F, Xiao C, Wu Y, Li W. A benzo[ghi]-perylene triimide based double-cable conjugated polymer for single-component organic solar cells. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.06.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Gensch M, Schwartzkopf M, Brett CJ, Schaper SJ, Li N, Chen W, Liang S, Drewes J, Polonskyi O, Strunskus T, Faupel F, Müller-Buschbaum P, Roth SV. Correlating Optical Reflectance with the Topology of Aluminum Nanocluster Layers Growing on Partially Conjugated Diblock Copolymer Templates. ACS APPLIED MATERIALS & INTERFACES 2021; 13:56663-56673. [PMID: 34788001 PMCID: PMC8640968 DOI: 10.1021/acsami.1c18324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 11/03/2021] [Indexed: 06/13/2023]
Abstract
Large-scale fabrication of metal cluster layers for usage in sensor applications and photovoltaics is a huge challenge. Physical vapor deposition offers large-scale fabrication of metal cluster layers on templates and polymer surfaces. In the case of aluminum (Al), only little is known about the formation and interaction of Al clusters during sputter deposition. Complex polymer surface morphologies can tailor the deposited Al cluster layer. Here, a poly(methyl methacrylate)-block-poly(3-hexylthiophen-2,5-diyl) (PMMA-b-P3HT) diblock copolymer template is used to investigate the nanostructure formation of Al cluster layers on the different polymer domains and to compare it with the respective homopolymers PMMA and P3HT. The optical properties relevant for sensor applications are monitored with ultraviolet-visible (UV-vis) measurements during the sputter deposition. The formation of Al clusters is followed in situ with grazing-incidence small-angle X-ray scattering (GISAXS), and the chemical interaction is revealed by X-ray photoelectron spectroscopy (XPS). Furthermore, atomic force microscopy (AFM) and field emission scanning electron microscopy (FESEM) yield topographical information about selective wetting of Al on the P3HT domains and embedding in the PMMA domains in the early stages, followed by four distinct growth stages describing the Al nanostructure formation.
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Affiliation(s)
- Marc Gensch
- Deutsches
Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
- Lehrstuhl
für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, D-85748 Garching, Germany
| | | | - Calvin J. Brett
- Deutsches
Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
- Department
of Engineering Mechanics, KTH Royal Institute
of Technology, Teknikringen
8, SE-100 44 Stockholm, Sweden
- Wallenberg
Wood Science Center, KTH Royal Institute
of Technology, Teknikringen
56-58, SE-100 44 Stockholm, Sweden
| | - Simon J. Schaper
- Lehrstuhl
für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, D-85748 Garching, Germany
| | - Nian Li
- Lehrstuhl
für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, D-85748 Garching, Germany
| | - Wei Chen
- Lehrstuhl
für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, D-85748 Garching, Germany
| | - Suzhe Liang
- Lehrstuhl
für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, D-85748 Garching, Germany
| | - Jonas Drewes
- Lehrstuhl
für Materialverbunde, Institut für Materialwissenschaft, Christian-Albrechts-Universität zu Kiel, Kaiserstr.2, D-24143 Kiel, Germany
| | - Oleksandr Polonskyi
- Gordon
Lab, University of California, Santa Barbara, California 93106-5080, United States
| | - Thomas Strunskus
- Lehrstuhl
für Materialverbunde, Institut für Materialwissenschaft, Christian-Albrechts-Universität zu Kiel, Kaiserstr.2, D-24143 Kiel, Germany
| | - Franz Faupel
- Lehrstuhl
für Materialverbunde, Institut für Materialwissenschaft, Christian-Albrechts-Universität zu Kiel, Kaiserstr.2, D-24143 Kiel, Germany
| | - Peter Müller-Buschbaum
- Lehrstuhl
für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, D-85748 Garching, Germany
- Heinz-Maier-Leibniz
Zentrum (MLZ), Technische Universität
München, Lichtenbergstraße 1, D-85748 Garching, Germany
| | - Stephan V. Roth
- Deutsches
Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
- Department
of Fiber and Polymer Technology, KTH Royal
Institute of Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
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9
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Abstract
Chalcopyrite Cu(In,Ga)Se2 (CIGS) solar cells prepared via metal-organic chemical vapor deposition (MOCVD) are one of the candidates for highly advanced photovoltaic devices. This is because of their effectiveness and potential for reducing production costs through large-scale production. However, research on MOCVD-prepared solar cells is progressing slower than that on other types of solar cells, primarily because the preparation of CuInSe2 (CIS)-based films via MOCVD is relatively more sophisticated. In this study, we analyzed CIS solar cells prepared via three-stage MOCVD and processed with relatively simple precursors and techniques. We achieved an energy-conversion efficiency of 7.39% without applying a buffer layer. Instead, we applied a Cu-deficient layer to create a buried pn junction. Ultimately, we demonstrated that the fabrication of fully-MOCVD-processed CIS photovoltaic devices is feasible.
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10
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Merekalov AS, Derikov YI, Artemov VV, Ezhov AA, Kudryavtsev YV. Vertical Cylinder-to-Lamella Transition in Thin Block Copolymer Films Induced by In-Plane Electric Field. Polymers (Basel) 2021; 13:3959. [PMID: 34833258 PMCID: PMC8622010 DOI: 10.3390/polym13223959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 11/16/2022] Open
Abstract
Morphological transition between hexagonal and lamellar patterns in thin polystyrene-block-poly(4-vinyl pyridine) films simultaneously exposed to a strong in-plane electric field and saturated solvent vapor is studied with atomic force and scanning electron microscopy. In these conditions, standing cylinders made of 4-vinyl pyridine blocks arrange into threads up to tens of microns long along the field direction and then partially merge into standing lamellas. In the course of rearrangement, the copolymer remains strongly segregated, with the minor component domains keeping connectivity between the film surfaces. The ordering tendency becomes more pronounced if the cylinders are doped with Au nanorods, which can increase their dielectric permittivity. Non-selective chloroform vapor works particularly well, though it causes partial etching of the indium tin oxide cathode. On the contrary, 1,4-dioxane vapor selective to polystyrene matrix does not allow for any morphological changes.
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Affiliation(s)
- Alexey S. Merekalov
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 119991 Moscow, Russia; (A.S.M.); (Y.I.D.); (A.A.E.)
| | - Yaroslav I. Derikov
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 119991 Moscow, Russia; (A.S.M.); (Y.I.D.); (A.A.E.)
| | - Vladimir V. Artemov
- Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, 119333 Moscow, Russia;
| | - Alexander A. Ezhov
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 119991 Moscow, Russia; (A.S.M.); (Y.I.D.); (A.A.E.)
- Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Yaroslav V. Kudryavtsev
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 119991 Moscow, Russia; (A.S.M.); (Y.I.D.); (A.A.E.)
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russia
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11
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Ho K, Kim KS, de Beer S, Walker GC. Chemical Composition and Strain at Interfaces between Different Morphologies in Block Copolymer Thin Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:12723-12731. [PMID: 34693716 DOI: 10.1021/acs.langmuir.1c02169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Transitional composition between two thin-film morphologies of the block copolymer, polystyrene-block-poly(tert-butyl acrylate) (PS-b-PtBuA), was investigated using near-field infrared spectroscopy and atomic force microscopy mechanical measurements. These techniques allowed block identification with nanoscale spatial resolution and elucidated the material's sub-surface composition. PS was found to form coronae around the PtBuA block in spherical valleys on flat areas of the film, and coronae of PtBuA surrounding the PS lamellae were observed at the edge of the polymer film, where parallel lamellae are formed. Furthermore, we found that the peak position and width varied by location, which may be a result of block composition, chain tension, or substrate interaction.
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Affiliation(s)
- Kevin Ho
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Kris S Kim
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Sissi de Beer
- Sustainable Polymer Chemistry, Department of Molecules & Materials, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, Enschede 7500 AE, The Netherlands
| | - Gilbert C Walker
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
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12
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Hicks GEJ, Li S, Obhi NK, Jarrett-Wilkins CN, Seferos DS. Programmable Assembly of π-Conjugated Polymers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006287. [PMID: 34085725 DOI: 10.1002/adma.202006287] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 12/23/2020] [Indexed: 05/05/2023]
Abstract
π-Conjugated polymers have numerous applications due to their advantageous optoelectronic and mechanical properties. These properties depend intrinsically on polymer ordering, including crystallinity, orientation, morphology, domain size, and π-π interactions. Programming, or deliberately controlling the composition and ordering of π-conjugated polymers by well-defined inputs, is a key facet in the development of organic electronics. Here, π-conjugated programming is described at each stage of material development, stressing the links between each programming mode. Covalent programming is performed during polymer synthesis such that complex architectures can be constructed, which direct polymer assembly by governing polymer orientation, π-π interactions, and morphological length-scales. Solution programming is performed in a solvated state as polymers dissolve, aggregate, crystallize, or react in solution. Solid-state programming occurs in the solid state and is governed by polymer crystallization, domain segregation, or gelation. Recent progress in programming across these stages is examined, highlighting order-dependent features and assembly techniques that are unique to π-conjugated polymers. This should serve as a guide for delineating the many ways of directing π-conjugated polymer assembly to control ordering, structure, and function, enabling the further development of organic electronics.
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Affiliation(s)
- Garion E J Hicks
- Lash Miller Chemical Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Sheng Li
- Lash Miller Chemical Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Nimrat K Obhi
- Lash Miller Chemical Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Charles N Jarrett-Wilkins
- Lash Miller Chemical Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Dwight S Seferos
- Lash Miller Chemical Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
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13
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14
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Lee J, Kim H, Park H, Kim T, Hwang SH, Seo D, Chung TD, Choi TL. Universal Suzuki-Miyaura Catalyst-Transfer Polymerization for Precision Synthesis of Strong Donor/Acceptor-Based Conjugated Polymers and Their Sequence Engineering. J Am Chem Soc 2021; 143:11180-11190. [PMID: 34264077 DOI: 10.1021/jacs.1c05080] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Catalyst-transfer polymerization has revolutionized the field of polymer synthesis due to its living character, but for a given catalyst system, the polymer scope is rather narrow. Herein we report a highly efficient Suzuki-Miyaura catalyst-transfer polymerization (SCTP) that covers a wide range of monomers from electron-rich (donor, D) to electron-deficient (acceptor, A) (hetero)arenes by rationally designing boronate monomers and using commercially available Buchwald RuPhos and SPhos Pd G3 precatalysts. Initially, we optimized the controlled polymerization of 3,4-propylenedioxythiophene (ProDOT), benzotriazole (BTz), quinoxaline (QX), and 2,3-diphenylquinoxaline (QXPh) by introducing new boronates, such as 4,4,8,8-tetramethyl-1,3,6,2-dioxazaborocane and its N-benzylated derivative, to modulate the reactivity and stability of the monomers. As a result, PProDOT, PBTz, PQX, and PQXPh were prepared with controlled molecular weight and narrow dispersity (Đ < 1.29) in excellent yield (>85%). A detailed investigation of the polymer structures using 1H NMR and MALDI-TOF spectrometry supported the chain-growth mechanism and the high initiation efficiency of the SCTP method. In addition, the use of RuPhos-Pd showing excellent catalyst-transfer ability on both D/A monomers led to unprecedented controlled D-A statistical copolymerization, thereby modulating the HOMO energy level (from -5.11 to -4.80 eV) and band gap energy (from 1.68 to 1.91 eV) of the resulting copolymers. Moreover, to demonstrate the living nature of SCTP, various combinations of D-A and A-A block copolymers (PBTz-b-PProDOT, PQX-b-PProDOT, and PQX-b-PBTz) were successfully prepared by the sequential addition method. Finally, simple but powerful one-shot D-A block copolymerization was achieved by maximizing the rate difference between a fast-propagating pinacol boronate donor and a slow-propagating acceptor to afford well-defined poly(3-hexylthiophene)-b-poly(benzotriazole).
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Affiliation(s)
- Jaeho Lee
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Hwangseok Kim
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyunwoo Park
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Taehyun Kim
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Soon-Hyeok Hwang
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Daye Seo
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Taek Dong Chung
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea.,Advanced Institutes of Convergence Technology, 16229 Suwon-Si, Gyeonggi-do, Republic of Korea
| | - Tae-Lim Choi
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
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15
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Shyshov O, Haridas SV, Pesce L, Qi H, Gardin A, Bochicchio D, Kaiser U, Pavan GM, von Delius M. Living supramolecular polymerization of fluorinated cyclohexanes. Nat Commun 2021; 12:3134. [PMID: 34035277 PMCID: PMC8149861 DOI: 10.1038/s41467-021-23370-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 04/23/2021] [Indexed: 02/07/2023] Open
Abstract
The development of powerful methods for living covalent polymerization has been a key driver of progress in organic materials science. While there have been remarkable reports on living supramolecular polymerization recently, the scope of monomers is still narrow and a simple solution to the problem is elusive. Here we report a minimalistic molecular platform for living supramolecular polymerization that is based on the unique structure of all-cis 1,2,3,4,5,6-hexafluorocyclohexane, the most polar aliphatic compound reported to date. We use this large dipole moment (6.2 Debye) not only to thermodynamically drive the self-assembly of supramolecular polymers, but also to generate kinetically trapped monomeric states. Upon addition of well-defined seeds, we observed that the dormant monomers engage in a kinetically controlled supramolecular polymerization. The obtained nanofibers have an unusual double helical structure and their length can be controlled by the ratio between seeds and monomers. The successful preparation of supramolecular block copolymers demonstrates the versatility of the approach.
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Affiliation(s)
| | | | - Luca Pesce
- Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Lugano-Viganello, Switzerland
| | - Haoyuan Qi
- Central Facility of Electron Microscopy, Electron Microscopy Group of Materials Science, University of Ulm, Ulm, Germany
- Center for Advancing Electronics Dresden (cfaed) and Faculty of Chemistry and Food Chemistry, Technical University of Dresden, Dresden, Germany
| | - Andrea Gardin
- Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy
| | - Davide Bochicchio
- Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Lugano-Viganello, Switzerland
- Department of Physics, Università degli studi di Genova, Genova, Italy
| | - Ute Kaiser
- Central Facility of Electron Microscopy, Electron Microscopy Group of Materials Science, University of Ulm, Ulm, Germany
| | - Giovanni M Pavan
- Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Lugano-Viganello, Switzerland.
- Department of Applied Science and Technology, Politecnico di Torino, Torino, Italy.
| | - Max von Delius
- Institute of Organic Chemistry, University of Ulm, Ulm, Germany.
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16
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Liang S, Jiang X, Xiao C, Li C, Chen Q, Li W. Double-Cable Conjugated Polymers with Pendant Rylene Diimides for Single-Component Organic Solar Cells. Acc Chem Res 2021; 54:2227-2237. [PMID: 33852280 DOI: 10.1021/acs.accounts.1c00070] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
ConspectusConjugated polymers for application in organic solar cells (OSCs) have been developed from poly(phenylenevinylene) to poly(3-hexylthiophene) and then to "donor-acceptor" structures, providing power conversion efficiencies (PCEs) over 18% when blending with the electron acceptor as a two-component photoactive layer. Besides, graft-structural double-cable conjugated polymers that use an electron donor as conjugated backbones and an electron acceptor as pendant side units are one kind of conjugated polymer, in which charge carriers are generated in a single polymer. Therefore, double-cable conjugated polymers can be used as a single photoactive layer in single-component OSCs (SCOSCs). The covalently linked electron donor and acceptor enable double-cable polymers to maintain stable microstructures during long-term operation compared to two-component systems, which is very important for OSCs toward large-area applications. However, SCOSCs based on double-cable conjugated polymers provided PCEs below 3% in a long period, which is lagging far behind PCEs of two-component OSCs. The key reason for this is the limited number of chemical structures and the difficulty to tune the morphology in these polymers.In this Account, we provide an overview about our efforts on developing new double-cable conjugated polymers with rylene diimides as side units, and how to realize high PCEs in SCOSC devices. The studies start from developing a "functionalization-polymerization" method to synthesize the polymers containing rylene diimide acceptors, so that large amounts of double-cable conjugated polymers with distinct physical and electrochemical properties were obtained. Then, we will discuss how to control the nanophase separation in the crystalline region and optimize the miscibility in the amorphous region of double-cable polymers, simultaneously facilitating exciton dissociation and charge transport. With these efforts, a high PCE of 8.4% has been obtained, representing the record PCE in SCOSCs. In addition, the physical process and the stability of SCOSCs will be discussed. We hope that this account will inspire many innovative studies in this field and push the PCEs of SCOSCs to a new stage.
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Affiliation(s)
- Shijie Liang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Xudong Jiang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Chengyi Xiao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Cheng Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Qiaomei Chen
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Weiwei Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, P. R. China
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17
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Invernizzi F, Nitti A, Pasini D. Regioselective Pummerer rearrangement in [2.2]paracyclophanes. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2020.1825434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Fabio Invernizzi
- Department of Chemistry and INSTM Research Unit, University of Pavia, Pavia, Italy
| | - Andrea Nitti
- Department of Chemistry and INSTM Research Unit, University of Pavia, Pavia, Italy
| | - Dario Pasini
- Department of Chemistry and INSTM Research Unit, University of Pavia, Pavia, Italy
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18
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Komanduri V, Janpatompong Y, Marcial-Hernandez R, Tate DJ, Turner ML. A sequential ROMP strategy to donor–acceptor di-, tri- and tetra arylenevinylene block copolymers. Polym Chem 2021. [DOI: 10.1039/d1py01202a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sequential ROMP of electron rich and electron deficient paracyclophanediene monomers gives donor–acceptor di-, tri- and even tetrablock phenylenevinylene coploymers.
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Affiliation(s)
- Venukrishnan Komanduri
- Organic Materials Innovation Centre (OMIC), The School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Yurachat Janpatompong
- Organic Materials Innovation Centre (OMIC), The School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Raymundo Marcial-Hernandez
- Organic Materials Innovation Centre (OMIC), The School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Daniel J. Tate
- Organic Materials Innovation Centre (OMIC), The School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Michael L. Turner
- Organic Materials Innovation Centre (OMIC), The School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
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19
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Shang X, Yin Y, Chen S, Zhu M, Zhai D, Liu X, Peng J. Unravelling the Correlation between Microphase Separation and Cocrystallization in Thiophene-Selenophene Block Copolymers for Organic Field-Effect Transistors. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01395] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xin Shang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China
| | - Yue Yin
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China
| | - Shuwen Chen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China
| | - Mingjing Zhu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China
| | - Dalong Zhai
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China
| | - Xiaofeng Liu
- Department of Chemistry, Fudan University, Shanghai 200438, P. R. China
| | - Juan Peng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, P. R. China
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20
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Jiang X, Yang J, Karuthedath S, Li J, Lai W, Li C, Xiao C, Ye L, Ma Z, Tang Z, Laquai F, Li W. Miscibility‐Controlled Phase Separation in Double‐Cable Conjugated Polymers for Single‐Component Organic Solar Cells with Efficiencies over 8 %. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009272] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Xudong Jiang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Jinjin Yang
- Center for Advanced Low-dimension Materials College of Materials Science and Engineering Donghua University Shanghai 201620 P. R. China
| | - Safakath Karuthedath
- King Abdullah University of Science and Technology (KAUST) KAUST Solar Center (KSC) Physical Sciences and Engineering Division (PSE) Material Science and Engineering Program (MSE) Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Junyu Li
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Wenbin Lai
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Cheng Li
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Chengyi Xiao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
| | - Long Ye
- School of Materials Science and Engineering Tianjin Key Laboratory of Molecular Optoelectronic Science Tianjin University Tianjin 300350 P. R. China
| | - Zaifei Ma
- Center for Advanced Low-dimension Materials College of Materials Science and Engineering Donghua University Shanghai 201620 P. R. China
| | - Zheng Tang
- Center for Advanced Low-dimension Materials College of Materials Science and Engineering Donghua University Shanghai 201620 P. R. China
| | - Frédéric Laquai
- King Abdullah University of Science and Technology (KAUST) KAUST Solar Center (KSC) Physical Sciences and Engineering Division (PSE) Material Science and Engineering Program (MSE) Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Weiwei Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- Institute of Applied Chemistry Jiangxi Academy of Sciences Nanchang 330096 P. R. China
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21
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Jiang X, Yang J, Karuthedath S, Li J, Lai W, Li C, Xiao C, Ye L, Ma Z, Tang Z, Laquai F, Li W. Miscibility-Controlled Phase Separation in Double-Cable Conjugated Polymers for Single-Component Organic Solar Cells with Efficiencies over 8 . Angew Chem Int Ed Engl 2020; 59:21683-21692. [PMID: 32815586 DOI: 10.1002/anie.202009272] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Indexed: 02/03/2023]
Abstract
A record power conversion efficiency of 8.40 % was obtained in single-component organic solar cells (SCOSCs) based on double-cable conjugated polymers. This is realized based on exciton separation playing the same role as charge transport in SCOSCs. Two double-cable conjugated polymers were designed with almost identical conjugated backbones and electron-withdrawing side units, but extra Cl atoms had different positions on the conjugated backbones. When Cl atoms were positioned at the main chains, the polymer formed the twist backbones, enabling better miscibility with the naphthalene diimide side units. This improves the interface contact between conjugated backbones and side units, resulting in efficient conversion of excitons into free charges. These findings reveal the importance of charge generation process in SCOSCs and suggest a strategy to improve this process: controlling miscibility between conjugated backbones and aromatic side units in double-cable conjugated polymers.
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Affiliation(s)
- Xudong Jiang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China.,Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Jinjin Yang
- Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Safakath Karuthedath
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), Material Science and Engineering Program (MSE), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Junyu Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Wenbin Lai
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Cheng Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Chengyi Xiao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Long Ye
- School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Science, Tianjin University, Tianjin, 300350, P. R. China
| | - Zaifei Ma
- Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Zheng Tang
- Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Frédéric Laquai
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), Material Science and Engineering Program (MSE), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Weiwei Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China.,Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang, 330096, P. R. China
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22
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Leniart A, Pula P, Sitkiewicz A, Majewski PW. Macroscopic Alignment of Block Copolymers on Silicon Substrates by Laser Annealing. ACS NANO 2020; 14:4805-4815. [PMID: 32159943 PMCID: PMC7497666 DOI: 10.1021/acsnano.0c00696] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 03/11/2020] [Indexed: 05/07/2023]
Abstract
Laser annealing is a competitive alternative to conventional oven annealing of block copolymer (BCP) thin films enabling rapid acceleration and precise spatial control of the self-assembly process. Localized heating by a moving laser beam (zone annealing), taking advantage of steep temperature gradients, can additionally yield aligned morphologies. In its original implementation it was limited to specialized germanium-coated glass substrates, which absorb visible light and exhibit low-enough thermal conductivity to facilitate heating at relatively low irradiation power density. Here, we demonstrate a recent advance in laser zone annealing, which utilizes a powerful fiber-coupled near-IR laser source allowing rapid BCP annealing over a large area on conventional silicon wafers. The annealing coupled with photothermal shearing yields macroscopically aligned BCP films, which are used as templates for patterning metallic nanowires. We also report a facile method of transferring laser-annealed BCP films onto arbitrary surfaces. The transfer process allows patterning substrates with a highly corrugated surface and single-step rapid fabrication of multilayered nanomaterials with complex morphologies.
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Affiliation(s)
| | - Przemyslaw Pula
- Department
of Chemistry, University of Warsaw, Warsaw, 02089, Poland
| | | | - Pawel W. Majewski
- Department
of Chemistry, University of Warsaw, Warsaw, 02089, Poland
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23
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Park SH, Kim Y, Kwon NY, Lee YW, Woo HY, Chae W, Park S, Cho MJ, Choi DH. Significantly Improved Morphology and Efficiency of Nonhalogenated Solvent-Processed Solar Cells Derived from a Conjugated Donor-Acceptor Block Copolymer. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1902470. [PMID: 32099759 PMCID: PMC7029657 DOI: 10.1002/advs.201902470] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/30/2019] [Indexed: 06/08/2023]
Abstract
A highly crystalline conjugated donor (D)-acceptor (A) block copolymer (PBDT2T-b-N2200) that has good solubility in nonhalogenated solvents is successfully synthesized. PBDT2T-b-N2200 shows a broad complementary absorption behavior owing to a wide-band gap donor (PBDT2T) present as a D-block and a narrow-band gap acceptor (N2200) present as an A-block. Polymer solar cells (PSCs) with conjugated block copolymer (CBCP) are fabricated using a toluene solution and PSC created with an annealed film showing the highest power conversion efficiency of 6.43%, which is 2.4 times higher than that made with an annealed blend film of PBDT2T and N2200. Compared to the blend film, the PBDT2T-b-N2200 film exhibits a highly improved surface and internal morphology, as well as a faster photoluminescence decay lifetime, indicating a more efficient photoinduced electron transfer. In addition, the PBDT2T-b-N2200 film shows high crystallinity through an effective self-assembly of each block during thermal annealing and a predominant face-on chain orientation favorable to a vertical-type PSC. Moreover, the CBCP-based PSCs exhibit an excellent shelf-life time of over 1020 h owing to their morphological stability. From these results, a D-A block copolymer system is one of the efficient strategies to improve miscibility and morphological stability in all polymer blend systems.
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Affiliation(s)
- Su Hong Park
- Department of ChemistryResearch Institute for Natural SciencesKorea University145 Anam‐Ro, Sungbuk‐guSeoul02841South Korea
| | - Youngseo Kim
- Department of ChemistryResearch Institute for Natural SciencesKorea University145 Anam‐Ro, Sungbuk‐guSeoul02841South Korea
| | - Na Yeon Kwon
- Department of ChemistryResearch Institute for Natural SciencesKorea University145 Anam‐Ro, Sungbuk‐guSeoul02841South Korea
| | - Young Woong Lee
- Department of ChemistryResearch Institute for Natural SciencesKorea University145 Anam‐Ro, Sungbuk‐guSeoul02841South Korea
| | - Han Young Woo
- Department of ChemistryResearch Institute for Natural SciencesKorea University145 Anam‐Ro, Sungbuk‐guSeoul02841South Korea
| | - Weon‐Sik Chae
- Daegu CenterKorea Basic Science Institute80 Daehakro, BukguDaegu41566South Korea
| | - Sungnam Park
- Department of ChemistryResearch Institute for Natural SciencesKorea University145 Anam‐Ro, Sungbuk‐guSeoul02841South Korea
| | - Min Ju Cho
- Department of ChemistryResearch Institute for Natural SciencesKorea University145 Anam‐Ro, Sungbuk‐guSeoul02841South Korea
| | - Dong Hoon Choi
- Department of ChemistryResearch Institute for Natural SciencesKorea University145 Anam‐Ro, Sungbuk‐guSeoul02841South Korea
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24
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Shi D, Wang H, Sun H, Yuan W, Wang S, Huang W. Improved efficiency of single-component active layer photovoltaics by optimizing conjugated diblock copolymers. NEW J CHEM 2020. [DOI: 10.1039/c9nj05869a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Using an A–B type monomer instead of an AA + BB type monomer to synthesise diblock copolymers, the PCE of a single-component photovoltaic device reached 1.22%.
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Affiliation(s)
- Dengke Shi
- School of Material and Chemistry Engineering
- Xuzhou University of Technology
- Xuzhou
- China
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials
| | - Huabin Wang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
- China
| | - Hua Sun
- School of Material and Chemistry Engineering
- Xuzhou University of Technology
- Xuzhou
- China
| | - Wenbo Yuan
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
- China
| | - Shifan Wang
- School of Material and Chemistry Engineering
- Xuzhou University of Technology
- Xuzhou
- China
| | - Wei Huang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials
- Jiangsu National Synergistic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
- China
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25
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Li C, Wu X, Sui X, Wu H, Wang C, Feng G, Wu Y, Liu F, Liu X, Tang Z, Li W. Crystalline Cooperativity of Donor and Acceptor Segments in Double‐Cable Conjugated Polymers toward Efficient Single‐Component Organic Solar Cells. Angew Chem Int Ed Engl 2019; 58:15532-15540. [DOI: 10.1002/anie.201910489] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Indexed: 11/05/2022]
Affiliation(s)
- Cheng Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic CompositesBeijing University of Chemical Technology Beijing 100029 P. R. China
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
| | - Xianxin Wu
- Division of NanophotonicsCAS Key Laboratory of Standardization and Measurement for NanotechnologyCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 P. R. China
| | - Xinyu Sui
- Division of NanophotonicsCAS Key Laboratory of Standardization and Measurement for NanotechnologyCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 P. R. China
| | - Hongbo Wu
- Center for Advanced Low-dimension MaterialsState Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua University Shanghai 201620 P. R. China
| | - Chao Wang
- College of Chemistry and Environmental ScienceHebei University Baoding 071002 P. R. China
| | - Guitao Feng
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
| | - Yonggang Wu
- College of Chemistry and Environmental ScienceHebei University Baoding 071002 P. R. China
| | - Feng Liu
- Department of Physics and Astronomy and Collaborative Innovation Center of IFSA (CICIFSA)Shanghai Jiao Tong University Shanghai P. R. China
| | - Xinfeng Liu
- Division of NanophotonicsCAS Key Laboratory of Standardization and Measurement for NanotechnologyCAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology Beijing 100190 P. R. China
| | - Zheng Tang
- Center for Advanced Low-dimension MaterialsState Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua University Shanghai 201620 P. R. China
| | - Weiwei Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic CompositesBeijing University of Chemical Technology Beijing 100029 P. R. China
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
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26
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Li C, Wu X, Sui X, Wu H, Wang C, Feng G, Wu Y, Liu F, Liu X, Tang Z, Li W. Crystalline Cooperativity of Donor and Acceptor Segments in Double‐Cable Conjugated Polymers toward Efficient Single‐Component Organic Solar Cells. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910489] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Cheng Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 P. R. China
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Xianxin Wu
- Division of Nanophotonics CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100190 P. R. China
| | - Xinyu Sui
- Division of Nanophotonics CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100190 P. R. China
| | - Hongbo Wu
- Center for Advanced Low-dimension Materials State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University Shanghai 201620 P. R. China
| | - Chao Wang
- College of Chemistry and Environmental Science Hebei University Baoding 071002 P. R. China
| | - Guitao Feng
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Yonggang Wu
- College of Chemistry and Environmental Science Hebei University Baoding 071002 P. R. China
| | - Feng Liu
- Department of Physics and Astronomy and Collaborative Innovation Center of IFSA (CICIFSA) Shanghai Jiao Tong University Shanghai P. R. China
| | - Xinfeng Liu
- Division of Nanophotonics CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100190 P. R. China
| | - Zheng Tang
- Center for Advanced Low-dimension Materials State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University Shanghai 201620 P. R. China
| | - Weiwei Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 P. R. China
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
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27
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Drozdov FV, Luponosov YN, Svidchenko EA, Peregudova SM, Dmitryakov PV, Chvalun SN, Ponomarenko SA. Novel conjugated copolymers with dithienyl and cyclopentadithienyl substituted dicyanoethene acceptor blocks. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.09.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Lee C, Lee S, Kim GU, Lee W, Kim BJ. Recent Advances, Design Guidelines, and Prospects of All-Polymer Solar Cells. Chem Rev 2019; 119:8028-8086. [DOI: 10.1021/acs.chemrev.9b00044] [Citation(s) in RCA: 409] [Impact Index Per Article: 81.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Changyeon Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Seungjin Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Geon-U Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Wonho Lee
- Department of Polymer Science and Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 39177, South Korea
| | - Bumjoon J. Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
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29
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Yang F, Li J, Li C, Li W. Improving Electron Transport in a Double-Cable Conjugated Polymer via Parallel Perylenetriimide Design. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00495] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Fan Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Junyu Li
- DSM DMSC R&D Solutions, P.O. Box 18, 6160 MD Geleen, The Netherlands
| | - Cheng Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Weiwei Li
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, P. R. China
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30
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Kaake LG. Towards the Organic Double Heterojunction Solar Cell. CHEM REC 2019; 19:1131-1141. [DOI: 10.1002/tcr.201800180] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 03/12/2019] [Accepted: 03/12/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Loren G. Kaake
- Department of ChemistrySimon Fraser University 8888 University Dr. Burnaby, BC V5A 1S6 Canada
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31
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Khrustalev D, Yedrissov A, Shishlova Y, Tyagunova O, Ilyassov B, Kurbanova A. A New Method for the Synthesis of Bromine-Containing Heterocyclic Compounds for Photovoltaic Polymers. EURASIAN CHEMICO-TECHNOLOGICAL JOURNAL 2019. [DOI: 10.18321/ectj788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
With the development and improvement of systems for converting sunlight into electric and thermal energy, more and more work is emerging on the development of the newest and most promising direction in solar energy, namely the creation of solar cells based on photosensitive polymers. Recently the power conversion efficiency of organic photovoltaic (OPV) devices has overcome the barrier of 17%, and thus we can expect a new wave of scientific interest in the development of new, more efficient OPV devices. Unfortunately, during searching for highly efficient chemical structures of OPV polymers, the researchers missed an important point: all photovoltaic polymers consist of aromatic and heteroaromatic «building blocks», which, in turn, are synthesized based on outdated techniques using highly toxic, dangerous for life and environment precursors. The development of «green», environmentally friendly, economically viable methods for the synthesis of photovoltaic polymers and building blocks for their production, will make the energy obtained from OPV truly «green». In this work, we present an alternative, «green» method for synthesizing halogen-containing aromatic and heteroaromatic, expensive building blocks most commonly used in the synthesis of photovoltaic polymers, which can be used to obtain photovoltaic polymers of various structures. We present the original methods for the synthesis of 4,4-dibromo-1,1- biphenyl (1), 4,7-dibromo-2,1,3-benzothiadiazole (2), 2-bromothiophene (3) and 2,5-dibromothiophene (4). All these methods differ from the previously described routes by their simplicity and convenience of their implementation, the absence of corrosive and irritant reagents, good yield and compliance with the principles of «Green Chemistry».
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Rahmanudin A, Yao L, Sekar A, Cho HH, Liu Y, Lhermitte CR, Sivula K. Fully Conjugated Donor-Acceptor Block Copolymers for Organic Photovoltaics via Heck-Mizoroki Coupling. ACS Macro Lett 2019; 8:134-139. [PMID: 35619421 DOI: 10.1021/acsmacrolett.8b00932] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of facile routes to prepare fully conjugated block copolymers (BCPs) from diverse monomers is an important goal for advancing robust bulk-heterojunction (BHJ) organic photovoltaics (OPVs). Herein we introduce a synthetic strategy for step-growth BCPs employing 1,2-bis(trialkylstannyl)ethene as one monomer, which, in addition to offering improved backbone planarity, directly yields a vinylene-terminated macromonomer suitable for Heck-Mizoroki coupling. The benefits of our strategy, which facilitates the preparation of functionalized macromonomers suitable for BCP synthesis, are demonstrated with a representative BCP based on a diketopyrrolopyrrole (DPP) copolymer coded pBDTTDPP as the donor block and a perylenediimide (PDI) copolymer coded as pPDIV as the acceptor block. Feed ratio optimization affords control over the macromonomer chain-end functionalities and allows for the selective formation of a tri-BCP consisting of pPDIV-b-pBDTTDPP-b-pPDIV, which is employed in a single-component BHJ OPV. Devices achieved a power conversion efficiency of 1.51% after thermal stress at 150 °C compared to 0.02% for a control device consisting of a comparable blend of pBDTTDPP and pPDIV. The difference in performance is ascribed to the morphological stability of the BHJ when using the BCP.
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Affiliation(s)
- Aiman Rahmanudin
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials, École Polytechnique Fédérale de Lausanne (EPFL), Station 6, Lausanne CH-1015, Switzerland
| | - Liang Yao
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials, École Polytechnique Fédérale de Lausanne (EPFL), Station 6, Lausanne CH-1015, Switzerland
| | - Arvindh Sekar
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials, École Polytechnique Fédérale de Lausanne (EPFL), Station 6, Lausanne CH-1015, Switzerland
| | - Han-Hee Cho
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials, École Polytechnique Fédérale de Lausanne (EPFL), Station 6, Lausanne CH-1015, Switzerland
| | - Yongpeng Liu
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials, École Polytechnique Fédérale de Lausanne (EPFL), Station 6, Lausanne CH-1015, Switzerland
| | - Charles R. Lhermitte
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials, École Polytechnique Fédérale de Lausanne (EPFL), Station 6, Lausanne CH-1015, Switzerland
| | - Kevin Sivula
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials, École Polytechnique Fédérale de Lausanne (EPFL), Station 6, Lausanne CH-1015, Switzerland
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33
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Liu SY, Cheng JZ, Zhang XF, Liu H, Shen ZQ, Wen HR. Single-step access to a series of D–A π-conjugated oligomers with 3–10 nm chain lengths. Polym Chem 2019. [DOI: 10.1039/c8py01478g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A series of five D–A π-conjugated oligo(DPP-co-fluorene)s progressively consisting of 3, 5, 7, 9 and 11 monomers and with chain lengths ranging between 3 and 10 nm have all been synthesized in a single step by direct C–H arylated coupling.
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Affiliation(s)
- Shi-Yong Liu
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - Jing-Zhao Cheng
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - Xiao-Feng Zhang
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - Hui Liu
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - Zhao-Qi Shen
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - He-Rui Wen
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
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34
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Lutz JP, Hannigan MD, McNeil AJ. Polymers synthesized via catalyst-transfer polymerization and their applications. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.07.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Xu Z, Lin J, Zhang L, Wang L, Wang G, Tian X, Jiang T. Distinct Photovoltaic Performance of Hierarchical Nanostructures Self-Assembled from Multiblock Copolymers. ACS APPLIED MATERIALS & INTERFACES 2018; 10:22552-22561. [PMID: 29900737 DOI: 10.1021/acsami.8b04692] [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
We applied a multiscale approach coupling dissipative particle dynamics method with a drift-diffusion model to elucidate the photovoltaic properties of multiblock copolymers consisting of alternating electron donor and acceptor blocks. A series of hierarchical lamellae-in-lamellar structures were obtained from the self-assembly of the multiblock copolymers. A distinct improvement in photovoltaic performance upon the morphology transformation from lamella to lamellae-in-lamella was observed. The hierarchical lamellae-in-lamellar structures significantly enhanced exciton dissociation and charge carrier transport, which consequently contributed to the improved photovoltaic performance. On the basis of our theoretical calculations, the hierarchical nanostructures can achieve much enhanced energy conversion efficiencies, improved by around 25% compared with that of general ones, through structure modulation on the number and size of the small-length-scale domains via the molecular design of multiblock copolymers. Our findings are supported by recent experimental evidence and provide guidance for designing advanced photovoltaic materials with hierarchical structures.
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Affiliation(s)
- Zhanwen Xu
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Liangshun Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Liquan Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Gengchao Wang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Xiaohui Tian
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, State Key Laboratory of Bioreactor Engineering, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai 200237 , China
| | - Tao Jiang
- Beijing Institute of Nanoenergy and Nanosystems , Chinese Academy of Sciences , Beijing 100083 , China
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Lee H, Park C, Sin DH, Park JH, Cho K. Recent Advances in Morphology Optimization for Organic Photovoltaics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1800453. [PMID: 29921007 DOI: 10.1002/adma.201800453] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 03/12/2018] [Indexed: 06/08/2023]
Abstract
Organic photovoltaics are an important part of a next-generation energy-harvesting technology that uses a practically infinite pollutant-free energy source. They have the advantages of light weight, solution processability, cheap materials, low production cost, and deformability. However, to date, the moderate photovoltaic efficiencies and poor stabilities of organic photovoltaics impede their use as replacements for inorganic photovoltaics. Recent developments in bulk-heterojunction organic photovoltaics mean that they have almost reached the lower efficiency limit for feasible commercialization. In this review article, the recent understanding of the ideal bulk-heterojunction morphology of the photoactive layer for efficient exciton dissociation and charge transport is described, and recent attempts as well as early-stage trials to realize this ideal morphology are discussed systematically from a morphological viewpoint. The various approaches to optimizing morphologies consisting of an interpenetrating bicontinuous network with appropriate domain sizes and mixed regions are categorized, and in each category, the recent trends in the morphology control on the multilength scale are highlighted and discussed in detail. This review article concludes by identifying the remaining challenges for the control of active layer morphologies and by providing perspectives toward real application and commercialization of organic photovoltaics.
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Affiliation(s)
- Hansol Lee
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 37673, South Korea
| | - Chaneui Park
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 37673, South Korea
| | - Dong Hun Sin
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 37673, South Korea
| | - Jong Hwan Park
- Nano Hybrid Technology Research Center, Creative and Fundamental Research Division, Korea Electrotechnology Research Institute (KERI), Changwon, 51543, South Korea
| | - Kilwon Cho
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 37673, South Korea
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