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Li Z, Chen W, Liu J, Jiang D. Can Linear Conjugated Polymers Form Stable Helical Structures on the Carbon Nanotubes? ACS APPLIED MATERIALS & INTERFACES 2022; 14:49189-49198. [PMID: 36260827 DOI: 10.1021/acsami.2c14771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The formation mechanism of ordered helical structures of conjugated polymers wrapping onto single-walled carbon nanotubes (SWCNTs) has been full of controversy in recent decades. A formation mechanism is proposed for the linear conjugated polymers wrapping around SWCNTs that the formation of helical structures is dependent on the orientation competition between backbone segments and side groups via transmission electron microscopy observations and molecular dynamics simulations. Results show that the conjugated polymers cannot always form stable helical structures, even if they have the capability to form a stable helix. In fact, only part of polymer segments presents a stable helix on the SWCNTs for the internal rotation in polymer deformations. Furthermore, a design framework is proposed to choose specific conjugated homopolymers and copolymers which can form helical structures on the SWCNTs.
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Affiliation(s)
- Zixi Li
- School of Materials, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou510275, P. R. China
| | - Wenduo Chen
- School of Materials, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou510275, P. R. China
| | - Jiayin Liu
- School of Materials, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou510275, P. R. China
| | - Dazhi Jiang
- School of Materials, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou510275, P. R. China
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Scaccabarozzi AD, Basu A, Aniés F, Liu J, Zapata-Arteaga O, Warren R, Firdaus Y, Nugraha MI, Lin Y, Campoy-Quiles M, Koch N, Müller C, Tsetseris L, Heeney M, Anthopoulos TD. Doping Approaches for Organic Semiconductors. Chem Rev 2021; 122:4420-4492. [PMID: 34793134 DOI: 10.1021/acs.chemrev.1c00581] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Electronic doping in organic materials has remained an elusive concept for several decades. It drew considerable attention in the early days in the quest for organic materials with high electrical conductivity, paving the way for the pioneering work on pristine organic semiconductors (OSCs) and their eventual use in a plethora of applications. Despite this early trend, however, recent strides in the field of organic electronics have been made hand in hand with the development and use of dopants to the point that are now ubiquitous. Here, we give an overview of all important advances in the area of doping of organic semiconductors and their applications. We first review the relevant literature with particular focus on the physical processes involved, discussing established mechanisms but also newly proposed theories. We then continue with a comprehensive summary of the most widely studied dopants to date, placing particular emphasis on the chemical strategies toward the synthesis of molecules with improved functionality. The processing routes toward doped organic films and the important doping-processing-nanostructure relationships, are also discussed. We conclude the review by highlighting how doping can enhance the operating characteristics of various organic devices.
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Affiliation(s)
- Alberto D Scaccabarozzi
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Thuwal 23955, Saudi Arabia
| | - Aniruddha Basu
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Thuwal 23955, Saudi Arabia
| | - Filip Aniés
- Department of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, U.K
| | - Jian Liu
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg 412 96, Sweden
| | - Osnat Zapata-Arteaga
- Materials Science Institute of Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain
| | - Ross Warren
- Institut für Physik & IRIS Adlershof, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
| | - Yuliar Firdaus
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Thuwal 23955, Saudi Arabia.,Research Center for Electronics and Telecommunication, Indonesian Institute of Science, Jalan Sangkuriang Komplek LIPI Building 20 level 4, Bandung 40135, Indonesia
| | - Mohamad Insan Nugraha
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Thuwal 23955, Saudi Arabia
| | - Yuanbao Lin
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Thuwal 23955, Saudi Arabia
| | - Mariano Campoy-Quiles
- Materials Science Institute of Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain
| | - Norbert Koch
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Kekulé-Strasse 5, 12489 Berlin, Germany.,Institut für Physik & IRIS Adlershof, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
| | - Christian Müller
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg 412 96, Sweden
| | - Leonidas Tsetseris
- Department of Physics, National Technical University of Athens, Athens GR-15780, Greece
| | - Martin Heeney
- Department of Chemistry and Centre for Processable Electronics, Imperial College London, London W12 0BZ, U.K
| | - Thomas D Anthopoulos
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Thuwal 23955, Saudi Arabia
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Kaufmann M, Hupfer M, Sachse T, Herrmann-Westendorf F, Weiß D, Dietzek B, Beckert R, Presselt M. Introducing double polar heads to highly fluorescent Thiazoles: Influence on supramolecular structures and photonic properties. J Colloid Interface Sci 2018; 526:410-418. [DOI: 10.1016/j.jcis.2018.04.105] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/27/2018] [Accepted: 04/27/2018] [Indexed: 10/17/2022]
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4
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Bombile JH, Janik MJ, Milner ST. Polaron formation mechanisms in conjugated polymers. Phys Chem Chem Phys 2018; 20:317-331. [PMID: 29210368 DOI: 10.1039/c7cp04355d] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In semiconducting polymers, interactions with conformational degrees of freedom can localize charge carriers, and strongly affect charge transport. Polarons can form when charges induce deformations of the surrounding medium, including local vibrational modes or dielectric polarization. These deformations then interact attractively with the charge, tending to localize it. First we investigate vibrational polaron formation in poly(3-hexylthiophene) [P3HT], with a tight-binding model for charges hopping between adjacent rings, coupled to ring distortions. We use density functional theory (DFT) calculations to determine coupling constants, including the "spring constant" for ring distortions and the coupling to the charge carrier. On single chains, we find only broad, weakly bound polarons by this mechanism. In 2d crystalline layers of P3HT, even weak transverse hopping between chains destabilizes this polaron. Then, we consider polarons stabilized by dielectric polarization, described semiclassically with a polarizable continuum interacting with the carrier wavefunction. In contrast to vibrational polarons, we find dielectrically stabilized polarons in P3HT are narrower, more strongly bound, and stable in 2d crystalline layers.
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Affiliation(s)
- Joel H Bombile
- Pennsylvania State University, University Park, PA 16802, USA.
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5
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Seibers ZD, Le TP, Lee Y, Gomez ED, Kilbey SM. Impact of Low Molecular Weight Poly(3-hexylthiophene)s as Additives in Organic Photovoltaic Devices. ACS APPLIED MATERIALS & INTERFACES 2018; 10:2752-2761. [PMID: 29309125 DOI: 10.1021/acsami.7b13078] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Despite tremendous progress in using additives to enhance the power conversion efficiency of organic photovoltaic devices, significant challenges remain in controlling the microstructure of the active layer, such as at internal donor-acceptor interfaces. Here, we demonstrate that the addition of low molecular weight poly(3-hexylthiophene)s (low-MW P3HT) to the P3HT/fullerene active layer increases device performance up to 36% over an unmodified control device. Low MW P3HT chains ranging in size from 1.6 to 8.0 kg/mol are blended with 77.5 kg/mol P3HT chains and [6,6]-phenyl C61 butyric acid methyl ester (PCBM) fullerenes while keeping P3HT/PCBM ratio constant. Optimal photovoltaic device performance increases are obtained for each additive when incorporated into the bulk heterojunction blend at loading levels that are dependent upon additive MW. Small-angle X-ray scattering and energy-filtered transmission electron microscopy imaging reveal that domain sizes are approximately invariant at low loading levels of the low-MW P3HT additive, and wide-angle X-ray scattering suggests that P3HT crystallinity is unaffected by these additives. These results suggest that oligomeric P3HTs compatibilize donor-acceptor interfaces at low loading levels but coarsen domain structures at higher loading levels and they are consistent with recent simulations results. Although results are specific to the P3HT/PCBM system, the notion that low molecular weight additives can enhance photovoltaic device performance generally provides a new opportunity for improving device performance and operating lifetimes.
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Affiliation(s)
- Zach D Seibers
- Department of Energy Science & Engineering and ‡Departments of Chemistry and Chemical and Biomolecular Engineering University of Tennessee at Knoxville , Knoxville, Tennessee 37996, United States
- Department of Chemical Engineering and ∥Materials Research Institute, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Thinh P Le
- Department of Energy Science & Engineering and ‡Departments of Chemistry and Chemical and Biomolecular Engineering University of Tennessee at Knoxville , Knoxville, Tennessee 37996, United States
- Department of Chemical Engineering and ∥Materials Research Institute, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Youngmin Lee
- Department of Energy Science & Engineering and ‡Departments of Chemistry and Chemical and Biomolecular Engineering University of Tennessee at Knoxville , Knoxville, Tennessee 37996, United States
- Department of Chemical Engineering and ∥Materials Research Institute, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Enrique D Gomez
- Department of Energy Science & Engineering and ‡Departments of Chemistry and Chemical and Biomolecular Engineering University of Tennessee at Knoxville , Knoxville, Tennessee 37996, United States
- Department of Chemical Engineering and ∥Materials Research Institute, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - S Michael Kilbey
- Department of Energy Science & Engineering and ‡Departments of Chemistry and Chemical and Biomolecular Engineering University of Tennessee at Knoxville , Knoxville, Tennessee 37996, United States
- Department of Chemical Engineering and ∥Materials Research Institute, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
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Juang TY, Hsu YC, Jiang BH, Chen CP. Highly Efficient Inverted Organic Photovoltaics Containing Aliphatic Hyperbranched Polymers as Cathode Modified Layers. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01373] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Tzong-Yuan Juang
- Department
of Cosmeceutics, China Medical University, Taichung, 40402, Taiwan
| | - Yu-Chi Hsu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan
| | - Bing-Huang Jiang
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan
| | - Chih-Ping Chen
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan
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