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Deng WW, Zhang ZP, Rong MZ, Zhang MQ. Highly flexible yet strain-insensitive conjugated polymer. MATERIALS HORIZONS 2024; 11:4507-4518. [PMID: 38982939 DOI: 10.1039/d4mh00587b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Imparting excellent electrical properties, mechanical robustness, suppleness, conduction stability during deformation, and self-healing to intrinsic conducting polymers is a challenging endeavor. The reversibly interlocked macromolecular networks (RILNs) approach is utilized to tackle this problem. Specifically, poly(3,4-ethylenedioxythiophene) (PEDOT) is mixed with flexible polysulfonic acid networks crosslinked by reversible Diels-Alder bonds, while rigid polyaniline networks crosslinked by reversible Schiff base bonds act as molecular staples. Owing to the joint actions of the doping effect of polyaniline on PEDOT, the specific interlocking architecture and synergy between the component materials, the electrical conductivity (59.3-980.5 S cm-1), tensile strength (8.4-81.6 MPa) and elongation at break (44.5-411.0%) of the resultant PEDOT/RILNs films is significantly tunable according to different usage scenarios by adjusting the PEDOT content from 1.48 to 22.24 wt%. More importantly, the electrical resistance of PEDOT/RILNs remains constant during not only a single large extension and deflection but also repeated stretching (up to 1500 cycles) and bending (up to 106 cycles). The built-in reversible covalent bonds enable the PEDOT/RILNs to autonomously restore damaged mechanical and electrical performance. These record-breaking results and the demonstration of self-powered sensor made of PEDOT/RILNs suggest that the proposed approach successfully satisfies various conflicting requirements of flexible electronics regarding the properties of conducting polymers.
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Affiliation(s)
- Wen Wen Deng
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GD HPPC Lab, IGCME, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China.
| | - Ze Ping Zhang
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GD HPPC Lab, IGCME, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China.
| | - Min Zhi Rong
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GD HPPC Lab, IGCME, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China.
| | - Ming Qiu Zhang
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GD HPPC Lab, IGCME, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China.
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Jieyang 515200, China
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2
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Zhang F, Sun J, Liu F, Li J, Hu BL, Tang Q, Li RW. Intrinsically Elastic Semiconductors through Aldehyde-Amine Polycondensation and Its Application on Stretchable Transistor. ACS APPLIED MATERIALS & INTERFACES 2024; 16:38324-38333. [PMID: 38982664 DOI: 10.1021/acsami.4c08685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
With the increasing demand for elastic electronics, as a crucial component, elastic semiconductors have been widely studied. However, there are some issues for the current preparation of elastic semiconductors, such as harsh reaction conditions, low atomic economic utilization, and complicated product separation and purification. Aldehyde-amine polycondensation is an important chemical reaction with the advantages of mild reaction conditions, high atomic-economic efficiency, and easy separation and purification. Herein, intrinsically elastic semiconductors are developed via aldehyde-amine polycondensation, including a semiconducting segment and an elastic segment. The resulting polymer containing 42.62 wt % soft segments exhibits excellent stretchability and mechanical reversibility, especially with a lower modulus. Interestingly, the carrier mobility displays up to 0.04 cm2·V-1·s-1, in the range of the fully conjugated reference polymer (0.1 cm2·V-1·s-1). In brief, this strategy provides important guiding principles for the development of intrinsically elastic polymer semiconductors.
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Affiliation(s)
- Fengyuan Zhang
- CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, PR China
| | - Jing Sun
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory of UV-Emitting Materials and Technology Northeast Normal University, Ministry of Education, Changchun 130024, P. R. China
| | - Fei Liu
- CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, PR China
| | - Junming Li
- CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, PR China
| | - Ben-Lin Hu
- CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, PR China
| | - Qingxin Tang
- Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory of UV-Emitting Materials and Technology Northeast Normal University, Ministry of Education, Changchun 130024, P. R. China
| | - Run-Wei Li
- CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, PR China
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3
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Li X, Sabir A, Zhang X, Jiang H, Wang W, Zheng X, Yang H. Highly Stretchable and Oriented Wafer-Scale Semiconductor Films for Organic Phototransistor Arrays. ACS APPLIED MATERIALS & INTERFACES 2024; 16:36678-36687. [PMID: 38966894 DOI: 10.1021/acsami.4c04349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
Stretchable organic phototransistor arrays have potential applications in artificial visual systems due to their capacity to perceive ultraweak light across a broad spectrum. Ensuring uniform mechanical and electrical performance of individual devices within these arrays requires semiconductor films with large-area scale, well-defined orientation, and stretchability. However, the progress of stretchable phototransistors is primarily impeded by their limited electrical properties and photodetection capabilities. Herein, wafer-scale and well-oriented semiconductor films were successfully prepared using a solution shearing process. The electrical properties and photodetection capabilities were optimized by improving the polymer chain alignment. Furthermore, a stretchable 10 × 10 transistor array with high device uniformity was fabricated, demonstrating excellent mechanical robustness and photosensitive imaging ability. These arrays based on highly stretchable and well-oriented wafer-scale semiconductor films have great application potential in the field of electronic eye and artificial visual systems.
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Affiliation(s)
- Xiangxiang Li
- Key Laboratory of Organic Integrated Circuits, Ministry of Education, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Ayesha Sabir
- Key Laboratory of Organic Integrated Circuits, Ministry of Education, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Xiaoying Zhang
- Key Laboratory of Organic Integrated Circuits, Ministry of Education, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Hongchen Jiang
- Key Laboratory of Organic Integrated Circuits, Ministry of Education, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Weiyu Wang
- Key Laboratory of Organic Integrated Circuits, Ministry of Education, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Xinran Zheng
- Key Laboratory of Organic Integrated Circuits, Ministry of Education, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Hui Yang
- Key Laboratory of Organic Integrated Circuits, Ministry of Education, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
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Kim H, Won Y, Song HW, Kwon Y, Jun M, Oh JH. Organic Mixed Ionic-Electronic Conductors for Bioelectronic Sensors: Materials and Operation Mechanisms. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306191. [PMID: 38148583 PMCID: PMC11251567 DOI: 10.1002/advs.202306191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 12/18/2023] [Indexed: 12/28/2023]
Abstract
The field of organic mixed ionic-electronic conductors (OMIECs) has gained significant attention due to their ability to transport both electrons and ions, making them promising candidates for various applications. Initially focused on inorganic materials, the exploration of mixed conduction has expanded to organic materials, especially polymers, owing to their advantages such as solution processability, flexibility, and property tunability. OMIECs, particularly in the form of polymers, possess both electronic and ionic transport functionalities. This review provides an overview of OMIECs in various aspects covering mechanisms of charge transport including electronic transport, ionic transport, and ionic-electronic coupling, as well as conducting/semiconducting conjugated polymers and their applications in organic bioelectronics, including (multi)sensors, neuromorphic devices, and electrochromic devices. OMIECs show promise in organic bioelectronics due to their compatibility with biological systems and the ability to modulate electronic conduction and ionic transport, resembling the principles of biological systems. Organic electrochemical transistors (OECTs) based on OMIECs offer significant potential for bioelectronic applications, responding to external stimuli through modulation of ionic transport. An in-depth review of recent research achievements in organic bioelectronic applications using OMIECs, categorized based on physical and chemical stimuli as well as neuromorphic devices and circuit applications, is presented.
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Affiliation(s)
- Hyunwook Kim
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National University1 Gwanak‐roGwanak‐guSeoul08826Republic of Korea
| | - Yousang Won
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National University1 Gwanak‐roGwanak‐guSeoul08826Republic of Korea
| | - Hyun Woo Song
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National University1 Gwanak‐roGwanak‐guSeoul08826Republic of Korea
| | - Yejin Kwon
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National University1 Gwanak‐roGwanak‐guSeoul08826Republic of Korea
| | - Minsang Jun
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National University1 Gwanak‐roGwanak‐guSeoul08826Republic of Korea
| | - Joon Hak Oh
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National University1 Gwanak‐roGwanak‐guSeoul08826Republic of Korea
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5
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Hou S, Chen C, Bai L, Yu J, Cheng Y, Huang W. Stretchable Electronics with Strain-Resistive Performance. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306749. [PMID: 38078789 DOI: 10.1002/smll.202306749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/15/2023] [Indexed: 03/16/2024]
Abstract
Stretchable electronics have attracted tremendous attention amongst academic and industrial communities due to their prospective applications in personal healthcare, human-activity monitoring, artificial skins, wearable displays, human-machine interfaces, etc. Other than mechanical robustness, stable performances under complex strains in these devices that are not for strain sensing are equally important for practical applications. Here, a comprehensive summarization of recent advances in stretchable electronics with strain-resistive performance is presented. First, detailed overviews of intrinsically strain-resistive stretchable materials, including conductors, semiconductors, and insulators, are given. Then, systematic representations of advanced structures, including helical, serpentine, meshy, wrinkled, and kirigami-based structures, for strain-resistive performance are summarized. Next, stretchable arrays and circuits with strain-resistive performance, that integrate multiple functionalities and enable complex behaviors, are introduced. This review presents a detailed overview of recent progress in stretchable electronics with strain-resistive performances and provides a guideline for the future development of stretchable electronics.
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Affiliation(s)
- Sihui Hou
- School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Cong Chen
- School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Libing Bai
- School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Junsheng Yu
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Yuhua Cheng
- School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Wei Huang
- School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
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Wang S, Zhao K, Li J, Yu X, Zhang Q, Han Y. Microstructural Evolution of P(NDI2OD-T2) Films with Different Molecular Weight during Stretching Deformation. Macromol Rapid Commun 2024; 45:e2300624. [PMID: 38018318 DOI: 10.1002/marc.202300624] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/23/2023] [Indexed: 11/30/2023]
Abstract
Conjugated polymers exhibit excellent electrical and mechanical properties when their molecular weight (Mw) is above the critical molecular weight (Mc). The microstructural changes of polymers under strain are crucial to establish a structure-performance relationship. Herein, the tensile deformation of P(NDI2OD-T2) is visualized, and cracks are revealed either along the (100) crystal plane of side chain packing or along the main chain direction which depends on the Mw is below or above the Mc. When Mw < Mc, the film cracks along the (100) plane under small strains. When Mw > Mc, the polymer chains first undergo stretch-induced orientation and then fracture along the main chain direction at large strains. This is attributed to the fact that the low Mw film exhibits large crystalline domains and the absence of interdomain connectivity, which are vulnerable to mechanical stress. In contrast, the high Mw film displays a nearly amorphous morphology with adequate entanglements, the molecular chains can endure stresses in the stretching direction to release substantial strain energy under greater mechanical deformation. Therefore, the film with Mw > Mc exhibits the optimal electrical and mechanical performances simultaneously, i.e., the electron mobility is retained under 100% strain and after 100 stretching-releasing cycles.
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Affiliation(s)
- Sichun Wang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Kefeng Zhao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Junhang Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xinhong Yu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Qiang Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Yanchun Han
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
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7
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Tran DK, West SM, Guo J, Chen SE, Ginger DS, Jenekhe SA. Chain Length Dependence of Electron Transport in an n-Type Conjugated Polymer with a Rigid-Rod Chain Topology. J Am Chem Soc 2024; 146:1435-1446. [PMID: 38174986 DOI: 10.1021/jacs.3c10650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Most currently known n-type conjugated polymers have a semiflexible chain topology, and their charge carrier mobilities are known to peak at modest chain lengths of below 40-60 repeat units. Herein, we show that the field-effect electron mobility of a model n-type conjugated polymer that has a rigid-rod chain topology grows continuously without saturation, even at a chain length exceeding 250 repeat units. We found the mechanism underlying the novel chain length-dependent electron transport to originate from the reduced structural disorder and energetic disorder with the increasing degree of polymerization inherent to the rigid-rod chain topology. Furthermore, we demonstrate a unique chain length-dependent decay of threshold voltage, which is rationalized by decreased trap densities and trap depths with respect to the degree of polymerization. Our findings provide new insights into the role of polymer chain topology in electron transport and demonstrate the promise of rigid-rod chain architectures for the design of future high-mobility conjugated polymers.
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Affiliation(s)
- Duyen K Tran
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States
| | - Sarah M West
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Jiajie Guo
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington 98195, United States
| | - Shinya E Chen
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington 98195, United States
| | - David S Ginger
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington 98195, United States
| | - Samson A Jenekhe
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
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8
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Shin H, Kim Y, Sung M, Ahn H, Yoo H, Park KH, Song SH, Lee J, Lee BH. Effect of Fluorination Position on the Crystalline Structure and Stretchability of Intrinsically Stretchable Polymer Semiconductors. ACS Macro Lett 2023; 12:1569-1575. [PMID: 37931088 DOI: 10.1021/acsmacrolett.3c00517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
A clear understanding of the structure-property relationship of intrinsically stretchable polymer semiconductors (ISPSs) is essential for developing high-performance polymer-based electronics. Herein, we investigate the effect of the fluorination position on the crystalline structure, charge-carrier mobility, and stretchability of polymer semiconductors based on a benzodithiophene-co-benzotriazole configuration. Although four different polymer semiconductors showed similar field-effect mobilities for holes (μ ≈ 0.1 cm2 V-1 s-1), polymer semiconductors with nonfluorinated backbones exhibited improved thin-film stretchability confirmed with crack onset strain (εc ≈ 20%-50%) over those of fluorinated counterparts (εc ≤ 10%). The enhanced stretchability of polymer semiconductors with a nonfluorinated backbone is presumably due to the higher face-on crystallite ratio and π-π stacking distance in the out-of-plane direction than those of the other polymer semiconductors. These results provide new insights into how the thin-film stretchability of polymer semiconductors can be improved by using precise molecular tailoring without deteriorating electrical properties.
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Affiliation(s)
- Hyerin Shin
- Department of Chemical Engineering and Materials Science, Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Yejin Kim
- Department of Chemical Engineering and Materials Science, Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Mingi Sung
- Division of Chemical Engineering, Dongseo University, Busan 47011, Republic of Korea
| | - Hyungju Ahn
- Pohang Accelerator Laboratory, POSTECH, Pohang 37673, Republic of Korea
| | - Hyeonjin Yoo
- Department of Chemical Engineering and Materials Science, Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Kwang Hyun Park
- Division of Advanced Materials Engineering, Center for Advanced Materials and Parts of Powders, Kongju National University, Cheonan-si 31080, Republic of Korea
| | - Sung Ho Song
- Division of Advanced Materials Engineering, Center for Advanced Materials and Parts of Powders, Kongju National University, Cheonan-si 31080, Republic of Korea
| | - Junghoon Lee
- Division of Chemical Engineering, Dongseo University, Busan 47011, Republic of Korea
| | - Byoung Hoon Lee
- Department of Chemical Engineering and Materials Science, Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea
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9
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Won D, Bang J, Choi SH, Pyun KR, Jeong S, Lee Y, Ko SH. Transparent Electronics for Wearable Electronics Application. Chem Rev 2023; 123:9982-10078. [PMID: 37542724 PMCID: PMC10452793 DOI: 10.1021/acs.chemrev.3c00139] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Indexed: 08/07/2023]
Abstract
Recent advancements in wearable electronics offer seamless integration with the human body for extracting various biophysical and biochemical information for real-time health monitoring, clinical diagnostics, and augmented reality. Enormous efforts have been dedicated to imparting stretchability/flexibility and softness to electronic devices through materials science and structural modifications that enable stable and comfortable integration of these devices with the curvilinear and soft human body. However, the optical properties of these devices are still in the early stages of consideration. By incorporating transparency, visual information from interfacing biological systems can be preserved and utilized for comprehensive clinical diagnosis with image analysis techniques. Additionally, transparency provides optical imperceptibility, alleviating reluctance to wear the device on exposed skin. This review discusses the recent advancement of transparent wearable electronics in a comprehensive way that includes materials, processing, devices, and applications. Materials for transparent wearable electronics are discussed regarding their characteristics, synthesis, and engineering strategies for property enhancements. We also examine bridging techniques for stable integration with the soft human body. Building blocks for wearable electronic systems, including sensors, energy devices, actuators, and displays, are discussed with their mechanisms and performances. Lastly, we summarize the potential applications and conclude with the remaining challenges and prospects.
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Affiliation(s)
- Daeyeon Won
- Applied
Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, Seoul 08826, Korea
| | - Junhyuk Bang
- Applied
Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, Seoul 08826, Korea
| | - Seok Hwan Choi
- Applied
Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, Seoul 08826, Korea
| | - Kyung Rok Pyun
- Applied
Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, Seoul 08826, Korea
| | - Seongmin Jeong
- Applied
Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, Seoul 08826, Korea
| | - Youngseok Lee
- Applied
Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, Seoul 08826, Korea
| | - Seung Hwan Ko
- Applied
Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, Seoul 08826, Korea
- Institute
of Engineering Research/Institute of Advanced Machinery and Design
(SNU-IAMD), Seoul National University, Seoul 08826, South Korea
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Kim Y, Ahn H, Yoo D, Sung M, Yoo H, Park S, Lee J, Lee BH. A Semi-Crystalline Polymer Semiconductor with Thin Film Stretchability Exceeding 200. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023:e2302683. [PMID: 37229768 PMCID: PMC10401152 DOI: 10.1002/advs.202302683] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Indexed: 05/27/2023]
Abstract
Despite the emerging scientific interest in polymer-based stretchable electronics, the trade-off between the crystallinity and stretchability of intrinsically stretchable polymer semiconductors-charge-carrier mobility increases as crystallinity increases while stretchability decreases-hinders the development of high-performance stretchable electronics. Herein, a highly stretchable polymer semiconductor is reported that shows concurrently improved thin film crystallinity and stretchability upon thermal annealing. The polymer thin films annealed at temperatures higher than their crystallization temperatures exhibit substantially improved thin film stretchability (> 200%) and hole mobility (≥ 0.2 cm2 V-1 s-1 ). The simultaneous enhancement of the crystallinity and stretchability is attributed to the thermally-assisted structural phase transition that allows the formation of edge-on crystallites and reinforces interchain noncovalent interactions. These results provide new insights into how the current crystallinity-stretchability limitation can be overcome. Furthermore, the results will facilitate the design of high-mobility stretchable polymer semiconductors for high-performance stretchable electronics.
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Affiliation(s)
- Yejin Kim
- Department of Chemical Engineering and Materials Science, Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Hyungju Ahn
- Pohang Accelerator Laboratory, POSTECH, Pohang, 37673, Republic of Korea
| | - Dahyeon Yoo
- Department of Chemical Engineering and Materials Science, Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Mingi Sung
- Division of Chemical Engineering, Dongseo University, Busan, 47011, Republic of Korea
| | - Hyeonjin Yoo
- Department of Chemical Engineering and Materials Science, Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Sohee Park
- Department of Chemical Engineering and Materials Science, Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Junghoon Lee
- Division of Chemical Engineering, Dongseo University, Busan, 47011, Republic of Korea
| | - Byoung Hoon Lee
- Department of Chemical Engineering and Materials Science, Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea
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11
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Wan Q, Seo S, Lee SW, Lee J, Jeon H, Kim TS, Kim BJ, Thompson BC. High-Performance Intrinsically Stretchable Polymer Solar Cell with Record Efficiency and Stretchability Enabled by Thymine-Functionalized Terpolymer. J Am Chem Soc 2023. [PMID: 37220423 DOI: 10.1021/jacs.3c02764] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Designing new polymer semiconductors for intrinsically stretchable polymer solar cells (IS-PSCs) with high power conversion efficiency (PCE) and durability is critical for wearable electronics applications. Nearly all high-performance PSCs are constructed using fully conjugated polymer donors (PD) and small-molecule acceptors (SMA). However, a successful molecular design of PDs for high-performance and mechanically durable IS-PSCs without sacrificing conjugation has not been realized. In this study, we design a novel thymine side chain terminated 6,7-difluoro-quinoxaline (Q-Thy) monomer and synthesize a series of fully conjugated PDs (PM7-Thy5, PM7-Thy10, PM7-Thy20) featuring Q-Thy. The Q-Thy units capable of inducing dimerizable hydrogen bonding enable strong intermolecular PD assembly and highly efficient and mechanically robust PSCs. The PM7-Thy10:SMA blend demonstrates a combination of high PCE (>17%) in rigid devices and excellent stretchability (crack-onset value >13.5%). More importantly, PM7-Thy10-based IS-PSCs show an unprecedented combination of PCE (13.7%) and ultrahigh mechanical durability (maintaining 80% of initial PCE after 43% strain), illustrating the promising potential for commercialization in wearable applications.
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Affiliation(s)
- Qingpei Wan
- Department of Chemistry and Loker Hydrocarbon Research Institute, University of Southern California, Los Angeles, California 90089-1661, United States
| | - Soodeok Seo
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Sun-Woo Lee
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jinho Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Hyesu Jeon
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Taek-Soo Kim
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Bumjoon J Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Barry C Thompson
- Department of Chemistry and Loker Hydrocarbon Research Institute, University of Southern California, Los Angeles, California 90089-1661, United States
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12
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Xu X, Zhao Y, Liu Y. Wearable Electronics Based on Stretchable Organic Semiconductors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206309. [PMID: 36794301 DOI: 10.1002/smll.202206309] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/25/2022] [Indexed: 05/18/2023]
Abstract
Wearable electronics are attracting increasing interest due to the emerging Internet of Things (IoT). Compared to their inorganic counterparts, stretchable organic semiconductors (SOSs) are promising candidates for wearable electronics due to their excellent properties, including light weight, stretchability, dissolubility, compatibility with flexible substrates, easy tuning of electrical properties, low cost, and low temperature solution processability for large-area printing. Considerable efforts have been dedicated to the fabrication of SOS-based wearable electronics and their potential applications in various areas, including chemical sensors, organic light emitting diodes (OLEDs), organic photodiodes (OPDs), and organic photovoltaics (OPVs), have been demonstrated. In this review, some recent advances of SOS-based wearable electronics based on the classification by device functionality and potential applications are presented. In addition, a conclusion and potential challenges for further development of SOS-based wearable electronics are also discussed.
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Affiliation(s)
- Xinzhao Xu
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Yan Zhao
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Yunqi Liu
- Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
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13
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Chen P, Wang D, Luo L, Meng J, Zhou Z, Dai X, Zou Y, Tan L, Shao X, Di CA, Jia C, Zhang HL, Liu Z. Self-Doping Naphthalene Diimide Conjugated Polymers for Flexible Unipolar n-Type OTFTs. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2300240. [PMID: 36812459 DOI: 10.1002/adma.202300240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/15/2023] [Indexed: 05/19/2023]
Abstract
The development of high-performance organic thin-film transistor (OTFT) materials is vital for flexible electronics. Numerous OTFTs are so far reported but obtaining high-performance and reliable OTFTs simultaneously for flexible electronics is still challenging. Herein, it is reported that self-doping in conjugated polymer enables high unipolar n-type charge mobility in flexible OTFTs, as well as good operational/ambient stability and bending resistance. New naphthalene diimide (NDI)-conjugated polymers PNDI2T-NM17 and PNDI2T-NM50 with different contents of self-doping groups on their side chains are designed and synthesized. The effects of self-doping on the electronic properties of resulting flexible OTFTs are investigated. The results reveal that the flexible OTFTs based on self-doped PNDI2T-NM17 exhibit unipolar n-type charge-carrier properties and good operational/ambient stability thanks to the appropriate doping level and intermolecular interactions. The charge mobility and on/off ratio are fourfold and four orders of magnitude higher than those of undoped model polymer, respectively. Overall, the proposed self-doping strategy is useful for rationally designing OTFT materials with high semiconducting performance and reliability.
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Affiliation(s)
- Pinyu Chen
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Key Laboratory of Special Function Materials and Structure Design, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Dongyang Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Liang Luo
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Key Laboratory of Special Function Materials and Structure Design, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Jinqiu Meng
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Key Laboratory of Special Function Materials and Structure Design, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Zhaoqiong Zhou
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Key Laboratory of Special Function Materials and Structure Design, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Xiaojuan Dai
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Ye Zou
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Luxi Tan
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China
| | - Xiangfeng Shao
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Key Laboratory of Special Function Materials and Structure Design, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Chong-An Di
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Chunyang Jia
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Integrated Circuit Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Hao-Li Zhang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Key Laboratory of Special Function Materials and Structure Design, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Zitong Liu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Key Laboratory of Special Function Materials and Structure Design, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
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14
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Zhang L, Li H, Zhao K, Zhang T, Liu D, Wang S, Wu F, Zhang Q, Han Y. Achieving the high charge mobility of conjugated polymers under cyclic stretching by changing the interaction parameter between solvent and sidechain. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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15
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Xiao X, Zheng Z, Zhong X, Gao R, Piao Z, Jiao M, Zhou G. Rational Design of Flexible Zn-Based Batteries for Wearable Electronic Devices. ACS NANO 2023; 17:1764-1802. [PMID: 36716429 DOI: 10.1021/acsnano.2c09509] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The advent of 5G and the Internet of Things has spawned a demand for wearable electronic devices. However, the lack of a suitable flexible energy storage system has become the "Achilles' Heel" of wearable electronic devices. Additional problems during the transformation of the battery structure from conventional to flexible also present a severe challenge to the battery design. Flexible Zn-based batteries, including Zn-ion batteries and Zn-air batteries, have long been considered promising candidates due to their high safety, eco-efficiency, substantial reserve, and low cost. In the past decade, researchers have come up with elaborate designs for each portion of flexible Zn-based batteries to improve the ionic conductivities, mechanical properties, environment adaptabilities, and scalable productions. It would be helpful to summarize the reported strategies and compare their pros and cons to facilitate further research toward the commercialization of flexible Zn-based batteries. In this review, the current progress in developing flexible Zn-based batteries is comprehensively reviewed, including their electrolytes, cathodes, and anodes, and discussed in terms of their synthesis, characterization, and performance validation. By clarifying the challenges in flexible Zn-based battery design, we summarize the methodology from previous investigations and propose challenges for future development. In the end, a research paradigm of Zn-based batteries is summarized to fit the burgeoning requirement of wearable electronic devices in an iterative process, which will benefit the future development of Zn-based batteries.
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Affiliation(s)
- Xiao Xiao
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, People's Republic of China
| | - Zhiyang Zheng
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, People's Republic of China
| | - Xiongwei Zhong
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, People's Republic of China
| | - Runhua Gao
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, People's Republic of China
| | - Zhihong Piao
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, People's Republic of China
| | - Miaolun Jiao
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, People's Republic of China
| | - Guangmin Zhou
- Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, People's Republic of China
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16
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Park H, Ma BS, Kim Y, Lee D, Li S, Kim HJ, Kim TS, Kim BJ. Direct Measurement of the Thermomechanical Properties of Poly(3-hexylthiophene) Thin Films on Ionic Liquid Surfaces. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
| | | | | | | | | | - Hyeong Jun Kim
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Republic of Korea
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17
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Arshad MA. Kinetics of crystallization mechanisms in poly(3-hexylthiophene) and poly(9,9-dihexylfluorene-alt-2,5-didodecyloxybenzene) conjugated polymers. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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18
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Liang Z, He J, Zhao B, Gao M, Chen Y, Ye L, Li M, Geng Y. 8.30% Efficiency P3HT-based all-polymer solar cells enabled by a miscible polymer acceptor with high energy levels and efficient electron transport. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1386-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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19
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Arrigoni A, Brambilla L, Castiglioni C, Bertarelli C. Conducting Electrospun Nanofibres: Monitoring of Iodine Doping of P3HT through Infrared (IRAV) and Raman (RaAV) Polaron Spectroscopic Features. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4308. [PMID: 36500931 PMCID: PMC9739408 DOI: 10.3390/nano12234308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/26/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
Aligned polymer nanofibres are prepared by means of the electrospinning of a chlorobenzene solution containing regioregular poly(3-hexyltiophene-2,5-diyl), P3HT, and poly(ethylene oxide), PEO. The PEO scaffold is easily dissolved with acetonitrile, leaving pure P3HT fibres, which do not show structural modification. Polymer fibres, either with or without the PEO supporting polymer, are effectively doped by exposure to iodine vapours. Doping is monitored following the changes in the doping-induced vibrational bands (IRAVs) observed in the infrared spectra and by means of Raman spectroscopy. Molecular orientation inside the fibres has been assessed by means of IR experiments in polarised light, clearly demonstrating that electrospinning induces the orientation of the polymer chains along the fibre axis as well as of the defects introduced by doping. This work illustrates a case study that contributes to the fundamental knowledge of the vibrational properties of the doping-induced defects-charged polarons-of P3HT. Moreover, it provides experimental protocols for a thorough spectroscopic characterisation of the P3HT nanofibres, and of doped conjugated polymers in general, opening the way for the control of the material structure when the doped polymer is confined in a one-dimensional architecture.
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Affiliation(s)
- Alessia Arrigoni
- Dipartimento di Chimica, Materiali e Ingegneria Chimica Giulio Natta, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy
| | - Luigi Brambilla
- Dipartimento di Chimica, Materiali e Ingegneria Chimica Giulio Natta, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy
| | - Chiara Castiglioni
- Dipartimento di Chimica, Materiali e Ingegneria Chimica Giulio Natta, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy
| | - Chiara Bertarelli
- Dipartimento di Chimica, Materiali e Ingegneria Chimica Giulio Natta, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milan, Italy
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20
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Combined role of regioregularity and molecular weight on melt-crystallization and self-nucleation of poly(3-hexylthiophene). POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Wakioka M, Xu K, Taketani T, Ozawa F. Synthesis of head-to-tail regioregular poly(3-hexylthiophene)s with controlled molecular weight via highly selective direct arylation polymerization (DArP). Polym J 2022. [DOI: 10.1038/s41428-022-00707-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Park JS, Kim GU, Lee S, Lee JW, Li S, Lee JY, Kim BJ. Material Design and Device Fabrication Strategies for Stretchable Organic Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201623. [PMID: 35765775 DOI: 10.1002/adma.202201623] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/06/2022] [Indexed: 06/15/2023]
Abstract
Recent advances in the power conversion efficiency (PCE) of organic solar cells (OSCs) have greatly enhanced their commercial viability. Considering the technical standards (e.g., mechanical robustness) required for wearable electronics, which are promising application platforms for OSCs, the development of fully stretchable OSCs (f-SOSCs) should be accelerated. Here, a comprehensive overview of f-SOSCs, which are aimed to reliably operate under various forms of mechanical stress, including bending and multidirectional stretching, is provided. First, the mechanical requirements of f-SOSCs, in terms of tensile and cohesion/adhesion properties, are summarized along with the experimental methods to evaluate those properties. Second, essential studies to make each layer of f-SOSCs stretchable and efficient are discussed, emphasizing strategies to simultaneously enhance the photovoltaic and mechanical properties of the active layer, ranging from material design to fabrication control. Key improvements to the other components/layers (i.e., substrate, electrodes, and interlayers) are also covered. Lastly, considering that f-SOSC research is in its infancy, the current challenges and future prospects are explored.
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Affiliation(s)
- Jin Su Park
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Geon-U Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Seungjin Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Jin-Woo Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Sheng Li
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Jung-Yong Lee
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Bumjoon J Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
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23
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Kim P, Kim EY, Han SG, Lee J, Kang S, Park C, Cho K, Moon HC, Kim JK. Enhanced Vertical Hole Mobility through End-on Chain Orientation of Poly(3-hexylthiophene)-based Diblock Copolymers by Microphase Separation. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Philgon Kim
- National Creative Research Initiative Center for Hybrid Nano Materials by High-Level Architectural Design of Block Copolymer, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Kyungbuk, Republic of Korea
| | - Eun Young Kim
- National Creative Research Initiative Center for Hybrid Nano Materials by High-Level Architectural Design of Block Copolymer, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Kyungbuk, Republic of Korea
| | - Se Gyo Han
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Kyungbuk, Republic of Korea
| | - Jaeyong Lee
- National Creative Research Initiative Center for Hybrid Nano Materials by High-Level Architectural Design of Block Copolymer, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Kyungbuk, Republic of Korea
| | - Sukwon Kang
- National Creative Research Initiative Center for Hybrid Nano Materials by High-Level Architectural Design of Block Copolymer, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Kyungbuk, Republic of Korea
| | - Chaneui Park
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Kyungbuk, Republic of Korea
| | - Kilwon Cho
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Kyungbuk, Republic of Korea
| | - Hong Chul Moon
- Department of Chemical Engineering, University of Seoul, Seoul 02504, Republic of Korea
| | - Jin Kon Kim
- National Creative Research Initiative Center for Hybrid Nano Materials by High-Level Architectural Design of Block Copolymer, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Kyungbuk, Republic of Korea
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24
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Zhao Z, Liu K, Liu Y, Guo Y, Liu Y. Intrinsically flexible displays: key materials and devices. Natl Sci Rev 2022; 9:nwac090. [PMID: 35711242 PMCID: PMC9197576 DOI: 10.1093/nsr/nwac090] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 03/17/2022] [Accepted: 03/17/2022] [Indexed: 11/14/2022] Open
Abstract
Continuous progress in flexible electronics is bringing more convenience and comfort to human lives. In this field, interconnection and novel display applications are acknowledged as important future directions. However, it is a huge scientific and technical challenge to develop intrinsically flexible displays due to the limited size and shape of the display panel. To address this conundrum, it is crucial to develop intrinsically flexible electrode materials, semiconductor materials and dielectric materials, as well as the relevant flexible transistor drivers and display panels. In this review, we focus on the recent progress in this field from seven aspects: background and concept, intrinsically flexible electrode materials, intrinsically flexible organic semiconductors and dielectric materials for organic thin film transistors (OTFTs), intrinsically flexible organic emissive semiconductors for electroluminescent devices, and OTFT-driven electroluminescent devices for intrinsically flexible displays. Finally, some suggestions and prospects for the future development of intrinsically flexible displays are proposed.
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Affiliation(s)
- Zhiyuan Zhao
- Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing100190, China
- University of Chinese Academy of Sciences, Beijing100049, China
| | - Kai Liu
- Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing100190, China
- University of Chinese Academy of Sciences, Beijing100049, China
| | - Yanwei Liu
- Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing100190, China
- University of Chinese Academy of Sciences, Beijing100049, China
| | - Yunlong Guo
- Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing100190, China
- University of Chinese Academy of Sciences, Beijing100049, China
| | - Yunqi Liu
- Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing100190, China
- University of Chinese Academy of Sciences, Beijing100049, China
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25
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Mayhugh AL, Yadav P, Luscombe CK. Circular Discovery in Small Molecule and Conjugated Polymer Synthetic Methodology. J Am Chem Soc 2022; 144:6123-6135. [PMID: 35380440 PMCID: PMC9011355 DOI: 10.1021/jacs.1c12455] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Indexed: 12/20/2022]
Abstract
Simple and efficient methods are a key consideration for small molecule and polymer syntheses. Direct arylation polymerization (DArP) is of increasing interest for preparing conjugated polymers as an effective approach compared to conventional cross-coupling polymerizations. As DArP sees broader utilization, advancements are needed to access materials with improved properties and different monomer structures and to improve the scalability of conjugated polymer synthesis. Presented herein are considerations for developing new methods of conjugated polymer synthesis from small molecule transformations, exploring how DArP has successfully used this approach, and presenting how emerging polymerization methodologies are developing similarly. While it is common to adapt small molecule methods to polymerizations, we demonstrate the ways in which information gained from studying polymerizations can inform and inspire greater advancements in small molecule transformations. This circular approach to organic synthetic method development underlines the value of collaboration between small molecule and polymer-based synthetic research groups.
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Affiliation(s)
- Amy L. Mayhugh
- Department
of Chemistry, University of Washington, Seattle, Washington 98195, Unites States
| | - Preeti Yadav
- pi-Conjugated
Polymers Unit, Okinawa Institute of Science
and Technology Graduate University, 1919-1, Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan
| | - Christine K. Luscombe
- pi-Conjugated
Polymers Unit, Okinawa Institute of Science
and Technology Graduate University, 1919-1, Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan
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26
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Liu Y, Xian K, Zhang X, Gao M, Shi Y, Zhou K, Deng Y, Hou J, Geng Y, Ye L. A Mixed-Ligand Strategy to Modulate P3HT Regioregularity for High-Efficiency Solar Cells. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02404] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Liu
- School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin 300350, China
| | - Kaihu Xian
- School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin 300350, China
| | - Xuwen Zhang
- School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin 300350, China
| | - Mengyuan Gao
- School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin 300350, China
| | - Yibo Shi
- School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin 300350, China
| | - Kangkang Zhou
- School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin 300350, China
| | - Yunfeng Deng
- School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin 300350, China
| | - Jianhui Hou
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yanhou Geng
- School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin 300350, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
| | - Long Ye
- School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin 300350, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
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27
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Duan M, Wu G, Gu T, Jiang X, Zhao L, Zhou L, Liao Y, Pu Q. Conductive and anticorrosive poly(
N
‐alkyl‐2‐(4‐hydroxybut‐2‐ynyl) pyridinium bromides): Synthesis and characterization. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20210672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ming Duan
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu Sichuan China
| | - Gang Wu
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu Sichuan China
| | - Tianbin Gu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province China West Normal University Nanchong Sichuan China
| | - Xiaohui Jiang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province China West Normal University Nanchong Sichuan China
| | - Lei Zhao
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu Sichuan China
| | - Limei Zhou
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province China West Normal University Nanchong Sichuan China
| | - Yunwen Liao
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province China West Normal University Nanchong Sichuan China
| | - Qiang Pu
- China Petroleum Engineering Co., Ltd Southwest Company Chengdu Sichuan China
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28
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Du J, Liu R, Zhu E, Guo H, Li Z, Liu C, Che G. Visible-light-induced bactericidal properties of a novel thiophene-based linear conjugated polymer/TiO 2 heterojunction. J Mater Chem B 2022; 10:737-747. [PMID: 35022631 DOI: 10.1039/d1tb02333k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The low utilization of visible light and the fast recombination of photogenerated electron-hole pairs are the two intrinsic defects that have hindered the antibacterial applications of TiO2. The addition of organic photocatalytic agents to form heterojunctions with TiO2 powder can effectively address these problems. A novel linear conjugated polymer poly[(thiophene-ethylene-thiophene)-thiophene-3-carboxylic acid decyl ester] (PTCD) was successfully synthesized via Stille coupling polymerization. PTCD and TiO2 can form a heterojunction photocatalyst (PTCD/TiO2), and this product was characterized using NMR and XRD. The UV-vis spectra showed that the absorption edge of the PTCD/TiO2 heterojunction extends to approximately 700 nm, which indicates that the visible-light utilization is greatly improved. Staphylococcus aureus (S. aureus) was selected as the target organism to test the photocatalytic antimicrobial activity of the material. Photogenerated electrons can undergo directional transmission of the PTCD polymer to TiO2 on the PTCD/TiO2 heterojunction to realize excellent antibacterial properties. With an optimized PTCD loading ratio of 30%, PTCD/TiO2 showed an antibacterial rate that was 14.5 times greater than that of pure TiO2 in 4 h under visible-light irradiation.
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Affiliation(s)
- Juan Du
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China. .,College of Chemistry, Jilin Normal University, Siping 136000, P. R. China
| | - Renming Liu
- College of Environmental Science and Engineering, Jilin Normal University, Siping 136000, P. R. China
| | - Enwei Zhu
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China. .,College of Chemistry, Jilin Normal University, Siping 136000, P. R. China
| | - Haiyong Guo
- Department of Biological Science, School of Life Science, Jilin Normal University, Jilin, Siping 136000, P. R. China
| | - Zhiyi Li
- College of Environmental Science and Engineering, Jilin Normal University, Siping 136000, P. R. China
| | - Chunbo Liu
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China. .,College of Environmental Science and Engineering, Jilin Normal University, Siping 136000, P. R. China
| | - Guangbo Che
- Baicheng Normal University, Baicheng 137000, China
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Kim KH, Jeong S, Kim HJ. Numerical and experimental analyses of the crack propagation in nanocomposite thin-films by using dynamic particle difference methods. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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30
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Liang X, Chen Y, Jiao X, Heeney M, McNeill CR, Dong L, Zhou C, Liu Z, Tan L. Vinylene Flanked Naphtho[1,2-c:5,6-c′]bis[1,2,5]thiadiazole Polymer for Low-Crystallinity Ambipolar Transistors. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c02253] [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)
- Xianfeng Liang
- School of Chemistry and Chemical Engineering, Chongqing University, No. 55 Daxuecheng South Rd., Shapingba, Chongqing 401331, China
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, No. 266 Fangzheng Avenue, Beibei, Chongqing 400714, China
| | - Yanlin Chen
- School of Chemistry and Chemical Engineering, Chongqing University, No. 55 Daxuecheng South Rd., Shapingba, Chongqing 401331, China
| | - Xuechen Jiao
- Department of Materials Science and Engineering, Monash University, Wellington Road, Clayton, Victoria 3800 Australia
| | - Martin Heeney
- Department of Chemistry Department of Chemistry and Centre for Plastic Electronics, Imperial College London, London W12 0BZ, U.K
| | - Christopher R. McNeill
- Department of Materials Science and Engineering, Monash University, Wellington Road, Clayton, Victoria 3800 Australia
| | - Lichun Dong
- School of Chemistry and Chemical Engineering, Chongqing University, No. 55 Daxuecheng South Rd., Shapingba, Chongqing 401331, China
| | - Cailong Zhou
- School of Chemistry and Chemical Engineering, Chongqing University, No. 55 Daxuecheng South Rd., Shapingba, Chongqing 401331, China
| | - Zitong Liu
- State Key Laboratory of Applied and Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, No. 222 Tianshui South Rd., Lanzhou 730000, China
| | - Luxi Tan
- School of Chemistry and Chemical Engineering, Chongqing University, No. 55 Daxuecheng South Rd., Shapingba, Chongqing 401331, China
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Park Y, Fuentes-Hernandez C, Kim K, Chou WF, Larrain FA, Graham S, Pierron ON, Kippelen B. Skin-like low-noise elastomeric organic photodiodes. SCIENCE ADVANCES 2021; 7:eabj6565. [PMID: 34910518 PMCID: PMC8673773 DOI: 10.1126/sciadv.abj6565] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 10/26/2021] [Indexed: 05/24/2023]
Abstract
Stretchable optoelectronics made of elastomeric semiconductors could enable the integration of intelligent systems with soft materials, such as those of the biological world. Organic semiconductors and photodiodes have been engineered to be elastomeric; however, for photodetector applications, it remains a challenge to identify an elastomeric bulk heterojunction (e-BHJ) photoactive layer that combines a low Young’s modulus and a high strain at break that yields organic photodiodes with low electronic noise values and high photodetector performance. Here, a blend of an elastomer, a donor-like polymer, and an acceptor-like molecule yields a skin-like e-BHJ with a Young’s modulus of a few megapascals, comparable to values of human tissues, and a high strain at break of 189%. Elastomeric organic photodiodes based on e-BHJ photoactive layers maintain low electronic noise current values in the tens of femtoamperes range and noise equivalent power values in the tens of picowatts range under at least 60% strain.
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Affiliation(s)
- Youngrak Park
- Center for Organic Photonics and Electronics (COPE), School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Canek Fuentes-Hernandez
- Center for Organic Photonics and Electronics (COPE), School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Kyungjin Kim
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Wen-Fang Chou
- Center for Organic Photonics and Electronics (COPE), School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Felipe A. Larrain
- Center for Organic Photonics and Electronics (COPE), School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Samuel Graham
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Olivier N. Pierron
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Bernard Kippelen
- Center for Organic Photonics and Electronics (COPE), School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
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Choudhary K, Chen AX, Pitch GM, Runser R, Urbina A, Dunn TJ, Kodur M, Kleinschmidt AT, Wang BG, Bunch JA, Fenning DP, Ayzner AL, Lipomi DJ. Comparison of the Mechanical Properties of a Conjugated Polymer Deposited Using Spin Coating, Interfacial Spreading, Solution Shearing, and Spray Coating. ACS APPLIED MATERIALS & INTERFACES 2021; 13:51436-51446. [PMID: 34677936 DOI: 10.1021/acsami.1c13043] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The mechanical properties of π-conjugated (semiconducting) polymers are a key determinant of the stability and manufacturability of devices envisioned for applications in energy and healthcare. These properties─including modulus, extensibility, toughness, and strength─are influenced by the morphology of the solid film, which depends on the method of processing. To date, the majority of work done on the mechanical properties of semiconducting polymers has been performed on films deposited by spin coating, a process not amenable to the manufacturing of large-area films. Here, we compare the mechanical properties of thin films of regioregular poly(3-heptylthiophene) (P3HpT) produced by three scalable deposition processes─interfacial spreading, solution shearing, and spray coating─and spin coating (as a reference). Our results lead to four principal conclusions. (1) Spray-coated films have poor mechanical robustness due to defects and inhomogeneous thickness. (2) Sheared films show the highest modulus, strength, and toughness, likely resulting from a decrease in free volume. (3) Interfacially spread films show a lower modulus but greater fracture strain than spin-coated films. (4) The trends observed in the tensile behavior of films cast using different deposition processes held true for both P3HpT and poly(3-butylthiophene) (P3BT), an analogue with a higher glass transition temperature. Grazing incidence X-ray diffraction and ultraviolet-visible spectroscopy reveal many notable differences in the solid structures of P3HpT films generated by all four processes. While these morphological differences provide possible explanations for differences in the electronic properties (hole mobility), we find that the mechanical properties of the film are dominated by the free volume and surface topography. In field-effect transistors, spread films had mobilities more than 1 magnitude greater than any other films, likely due to a relatively high proportion of edge-on texturing and long coherence length in the crystalline domains. Overall, spread films offer the best combination of deformability and charge-transport properties.
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Affiliation(s)
- Kartik Choudhary
- Department of Nanoengineering and Chemical Engineering Program, University of California, San Diego, 9500 Gilman Dr. Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Alexander X Chen
- Department of Nanoengineering and Chemical Engineering Program, University of California, San Diego, 9500 Gilman Dr. Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Gregory M Pitch
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street, Santa Cruz, California 95064, United States
| | - Rory Runser
- Department of Nanoengineering and Chemical Engineering Program, University of California, San Diego, 9500 Gilman Dr. Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Armando Urbina
- Department of Nanoengineering and Chemical Engineering Program, University of California, San Diego, 9500 Gilman Dr. Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Tim J Dunn
- Stanford Synchrotron Radiation Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Moses Kodur
- Department of Nanoengineering and Chemical Engineering Program, University of California, San Diego, 9500 Gilman Dr. Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Andrew T Kleinschmidt
- Department of Nanoengineering and Chemical Engineering Program, University of California, San Diego, 9500 Gilman Dr. Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Benjamin G Wang
- Department of Nanoengineering and Chemical Engineering Program, University of California, San Diego, 9500 Gilman Dr. Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Jordan A Bunch
- Department of Nanoengineering and Chemical Engineering Program, University of California, San Diego, 9500 Gilman Dr. Mail Code 0448, La Jolla, California 92093-0448, United States
| | - David P Fenning
- Department of Nanoengineering and Chemical Engineering Program, University of California, San Diego, 9500 Gilman Dr. Mail Code 0448, La Jolla, California 92093-0448, United States
| | - Alexander L Ayzner
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street, Santa Cruz, California 95064, United States
| | - Darren J Lipomi
- Department of Nanoengineering and Chemical Engineering Program, University of California, San Diego, 9500 Gilman Dr. Mail Code 0448, La Jolla, California 92093-0448, United States
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Yang T, Zhu E, Guo H, Du J, Wu Y, Liu C, Che G. Visible Light-Driven D-A Conjugated Linear Polymer and Its Coating for Dual Highly Efficient Photocatalytic Degradation and Disinfection. ACS APPLIED MATERIALS & INTERFACES 2021; 13:51447-51458. [PMID: 34676747 DOI: 10.1021/acsami.1c14240] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Herein, a novel donor-acceptor (D-A) conjugated linear polymeric system, poly[(2,6-(4,8-bis(5-(2-ethylhexyl)-4-fluorothiophen-2-yl)-benzo[1,2-b:4,5-b']dithiophene))-alt-2,5-(3-carboxyl)-thiophene] (PBDT-F-COOH), with outstanding processing ability and its all-organic PBDT-F-COOH coating featuring chemical bonding for combination with polyurethane were prepared. Wide visible spectrum-driven PBDT-F-COOH and PBDT-F-COOH-PU showed dual efficient photocatalytic activities toward degradation and disinfection, mainly attributing to efficient dissociation of excitons and transfer of charge carriers, resulting from the large dipole moment of D-A PBDT-F-COOH. PBDT-F-COOH demonstrated >99.2% inactivation of Staphylococcus aureus (S. aureus) within 1 h and a 7-log decrease in 4 h under visible light irradiation. Additionally, the coating showed the 7-log inactivation of S. aureus in 7 h. These inactivation efficiency results are among those of the best reported D-A conjugated linear polymers. Importantly, PBDT-F-COOH and the PBDT-F-COOH-PU coating both presented satisfactory stability with high photocatalytic activity after recycling runs. This work provides a feasible approach for fabricating nontoxic and highly active organic photocatalysts with wide visible spectra and a large dipole moment via a D-A linear structure design protocol.
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Affiliation(s)
- Tingyu Yang
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials, Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
- College of Environmental Science and Engineering, Jilin Normal University, Siping 136000, P. R. China
| | - Enwei Zhu
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials, Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
- College of Chemistry, Jilin Normal University, Siping 136000, P. R. China
| | - Haiyong Guo
- School of Life Science, Jilin Normal University, Siping 136000, P. R. China
| | - Juan Du
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials, Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
- College of Chemistry, Jilin Normal University, Siping 136000, P. R. China
| | - Yuanyuan Wu
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials, Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
- College of Chemistry, Jilin Normal University, Siping 136000, P. R. China
| | - Chunbo Liu
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials, Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
- College of Environmental Science and Engineering, Jilin Normal University, Siping 136000, P. R. China
| | - Guangbo Che
- Key Laboratory of Preparation and Applications of Environmental Friendly Materials, Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China
- College of Environmental Science and Engineering, Jilin Normal University, Siping 136000, P. R. China
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Zhao K, Zhang T, Zhang L, Li J, Li H, Wu F, Chen Y, Zhang Q, Han Y. Role of Molecular Weight in Microstructural Transition and Its Correlation to the Mechanical and Electrical Properties of P(NDI2OD-T2) Thin Films. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01481] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Kefeng Zhao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, P. R. China
| | - Tao Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Lu Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Junhang Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Hongxiang Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Fan Wu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Yu Chen
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Qiang Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Yanchun Han
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
- University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, P. R. China
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35
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Park J, Han S, Park H, Lee J, Cho S, Seo M, Kim BJ, Choi SQ. Simultaneous Measurement of Glass-Transition Temperature and Crystallinity of As-Prepared Polymeric Films from Restitution. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jinwon Park
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Seongsoo Han
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Hyeonjung Park
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Jaehong Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Suchan Cho
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Myungeun Seo
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- KAIST Institute for the Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Bumjoon J. Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- KAIST Institute for the Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Siyoung Q. Choi
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- KAIST Institute for the Nanocentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
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36
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Liu F, Hou X, Hu B, Li R. Intrinsically Elastic Organic Semiconductors (IEOSs). Molecules 2021; 26:molecules26206130. [PMID: 34684711 PMCID: PMC8537692 DOI: 10.3390/molecules26206130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/01/2021] [Accepted: 10/07/2021] [Indexed: 11/16/2022] Open
Abstract
Elastic semiconductors are becoming more and more important to the development of flexible wearable electronic devices, which can be prepared by structural engineering design, blending, and the intrinsic elastification of organic semiconductors (intrinsically elastic organic semiconductor, IEOS). Compared with the elastic semiconductors prepared by structural engineering and blending, the IEOS prepared by organic synthesis has attracted numerous attentions for its solution processability and highly tunable chemical structures. For IEOSs, reasonable designs of synthetic routes and methods are the basis for realizing good mechanical and electrical properties. This brief review begins with a concise introduction of elastic semiconductors, then follows with several synthetic methods of IEOSs, and concludes the characteristics of each method, which provides guidance for the synthesis of IEOSs in the future. Furthermore, the properties of IEOSs are involved from the aspects of electrical, mechanical properties, and the applications of the IEOSs in elastic electronic devices. Finally, the challenge and an outlook which IEOSs are facing are presented in conclusion.
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Affiliation(s)
- Fei Liu
- Institute of Materials Science, School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China;
- CAS Key Laboratory of Magnetic Materials and Devices and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Xueling Hou
- Institute of Materials Science, School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China;
- Correspondence: (X.H.); (B.H.); (R.L.)
| | - Benlin Hu
- CAS Key Laboratory of Magnetic Materials and Devices and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Correspondence: (X.H.); (B.H.); (R.L.)
| | - Runwei Li
- CAS Key Laboratory of Magnetic Materials and Devices and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Correspondence: (X.H.); (B.H.); (R.L.)
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37
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Ding Y, Yuan Y, Wu N, Wang X, Zhang G, Qiu L. Intrinsically Stretchable n-Type Polymer Semiconductors through Side Chain Engineering. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00936] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yafei Ding
- National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Opto-Electronic Technology, Hefei University of Technology, Hefei 230009, China
- Anhui Province Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei 230009, China
| | - Ye Yuan
- National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Opto-Electronic Technology, Hefei University of Technology, Hefei 230009, China
- Anhui Province Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei 230009, China
| | - Ning Wu
- National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Opto-Electronic Technology, Hefei University of Technology, Hefei 230009, China
- Anhui Province Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei 230009, China
| | - Xiaohong Wang
- National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Opto-Electronic Technology, Hefei University of Technology, Hefei 230009, China
- Anhui Province Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei 230009, China
| | - Guobing Zhang
- National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Opto-Electronic Technology, Hefei University of Technology, Hefei 230009, China
| | - Longzhen Qiu
- National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Opto-Electronic Technology, Hefei University of Technology, Hefei 230009, China
- Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, Hefei University of Technology, Hefei 230009, China
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38
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Saito M, Ito K, Yokoyama H. Mechanical Properties of Ultrathin Polystyrene- b-Polybutadiene- b-Polystyrene Block Copolymer Films: Film Thickness-Dependent Young’s Modulus. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01406] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Masayuki Saito
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - Kohzo Ito
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - Hideaki Yokoyama
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan
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Dauzon E, Sallenave X, Plesse C, Goubard F, Amassian A, Anthopoulos TD. Pushing the Limits of Flexibility and Stretchability of Solar Cells: A Review. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2101469. [PMID: 34297433 DOI: 10.1002/adma.202101469] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/25/2021] [Indexed: 06/13/2023]
Abstract
Emerging forms of soft, flexible, and stretchable electronics promise to revolutionize the electronics industries of the future offering radically new products that combine multiple functionalities, including power generation, with arbitrary form factor. For example, skin-like electronics promise to transform the human-machine-interface, but the softness of the skin is incompatible with traditional electronic components. To address this issue, new strategies toward soft and wearable electronic systems are currently being pursued, which also include stretchable photovoltaics as self-powering systems for use in autonomous and stretchable electronics of the future. Here recent developments in the field of stretchable photovoltaics are reviewed and their potential for various emerging applications are examined. Emphasis is placed on the different strategies to induce stretchability including extrinsic and intrinsic approaches. In the former case, engineering and patterning of the materials and devices are key elements while intrinsically stretchable systems rely on mechanically compliant materials such as elastomers and organic conjugated polymers. The result is a review article that provides a comprehensive summary of the progress to date in the field of stretchable solar cells from the nanoscale to macroscopic functional devices. The article is concluded by discussing the emerging trends and future developments.
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Affiliation(s)
- Emilie Dauzon
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Centre (KSC), Physical Science and Engineering Division, Thuwal, 23955-6900, Saudi Arabia
| | | | - Cedric Plesse
- LPPI, CY Cergy Paris Université, Cergy, 95000, France
| | | | - Aram Amassian
- Department of Materials Science and Engineering, and Organic and Carbon Electronic Laboratories (ORaCEL), North Carolina State University, Raleigh, NC, 27695, USA
| | - Thomas D Anthopoulos
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Centre (KSC), Physical Science and Engineering Division, Thuwal, 23955-6900, Saudi Arabia
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You R, Kang S, Lee C, Jeon J, Wie JJ, Kim TS, Yoon DK. Programmable Liquid Crystal Defect Arrays via Electric Field Modulation for Mechanically Functional Liquid Crystal Networks. ACS APPLIED MATERIALS & INTERFACES 2021; 13:36253-36261. [PMID: 34310107 DOI: 10.1021/acsami.1c04999] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The arrangement of mesogenic units determines mechanical response of the liquid crystal polymer network (LCN) film to heat. Here, we show an interesting approach to programming three-dimensional patterns of the LCN films with periodic topological defects generated by applying an electric field. The mechanical properties of three representative patterned LCN films were investigated in terms of the arrangement of mesogenic units through tensile testing. Remarkably, it was determined that LCN films showed enhanced toughness and ductility as defects increased in a given area, which is related to the elastic modulus mismatch that mitigates crack propagation. Our platform can also be used to modulate the frictional force of the patterned LCN films by varying the temperature, which can provide insight into the multiplex mechanical properties of LCN films.
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Affiliation(s)
- Ra You
- Department of Chemistry, KAIST, Daejeon 34141, Republic of Korea
| | - Sumin Kang
- Department of Mechanical Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Changjae Lee
- Department of Chemistry, KAIST, Daejeon 34141, Republic of Korea
| | - Jisoo Jeon
- Department of Polymer Science and Engineering, Inha University, Incheon 22212, Republic of Korea
- Program in Environmental and Polymer Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Jeong Jae Wie
- Department of Polymer Science and Engineering, Inha University, Incheon 22212, Republic of Korea
- Program in Environmental and Polymer Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Taek-Soo Kim
- Department of Mechanical Engineering, KAIST, Daejeon 34141, Republic of Korea
| | - Dong Ki Yoon
- Department of Chemistry, KAIST, Daejeon 34141, Republic of Korea
- Graduate School of Nanoscience and Technology and KAIST Institute for Nanocentury, KAIST, Daejeon 34141, Republic of Korea
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41
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Liu D, Mun J, Chen G, Schuster NJ, Wang W, Zheng Y, Nikzad S, Lai JC, Wu Y, Zhong D, Lin Y, Lei Y, Chen Y, Gam S, Chung JW, Yun Y, Tok JBH, Bao Z. A Design Strategy for Intrinsically Stretchable High-Performance Polymer Semiconductors: Incorporating Conjugated Rigid Fused-Rings with Bulky Side Groups. J Am Chem Soc 2021; 143:11679-11689. [PMID: 34284578 DOI: 10.1021/jacs.1c04984] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Strategies to improve stretchability of polymer semiconductors, such as introducing flexible conjugation-breakers or adding flexible blocks, usually result in degraded electrical properties. In this work, we propose a concept to address this limitation, by introducing conjugated rigid fused-rings with optimized bulky side groups and maintaining a conjugated polymer backbone. Specifically, we investigated two classes of rigid fused-ring systems, namely, benzene-substituted dibenzothiopheno[6,5-b:6',5'-f]thieno[3,2-b]thiophene (Ph-DBTTT) and indacenodithiophene (IDT) systems, and identified molecules displaying optimized electrical and mechanical properties. In the IDT system, the polymer PIDT-3T-OC12-10% showed promising electrical and mechanical properties. In fully stretchable transistors, the polymer PIDT-3T-OC12-10% showed a mobility of 0.27 cm2 V-1 s-1 at 75% strain and maintained its mobility after being subjected to hundreds of stretching-releasing cycles at 25% strain. Our results underscore the intimate correlation between chemical structures, mechanical properties, and charge carrier mobility for polymer semiconductors. Our described molecular design approach will help to expedite the next generation of intrinsically stretchable high-performance polymer semiconductors.
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Affiliation(s)
- Deyu Liu
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Jaewan Mun
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Gan Chen
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
| | - Nathaniel J Schuster
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Weichen Wang
- Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States
| | - Yu Zheng
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Shayla Nikzad
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Jian-Cheng Lai
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Yilei Wu
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Donglai Zhong
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Yangju Lin
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Yusheng Lei
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Yuelang Chen
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Sangah Gam
- Samsung Advanced Institute of Technology, Samsung Electronics, Suwon 16678, South Korea
| | - Jong Won Chung
- Samsung Advanced Institute of Technology, Samsung Electronics, Suwon 16678, South Korea
| | - Youngjun Yun
- Samsung Advanced Institute of Technology, Samsung Electronics, Suwon 16678, South Korea
| | - Jeffrey B-H Tok
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Zhenan Bao
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
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42
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Zhang S, Galuska LA, Gu X. Water‐assisted
mechanical testing of polymeric
thin‐films. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210281] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Song Zhang
- School of Polymer Science and Engineering The University of Southern Mississippi Hattiesburg Mississippi USA
| | - Luke A. Galuska
- School of Polymer Science and Engineering The University of Southern Mississippi Hattiesburg Mississippi USA
| | - Xiaodan Gu
- School of Polymer Science and Engineering The University of Southern Mississippi Hattiesburg Mississippi USA
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43
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Griggs S, Marks A, Bristow H, McCulloch I. n-Type organic semiconducting polymers: stability limitations, design considerations and applications. JOURNAL OF MATERIALS CHEMISTRY. C 2021; 9:8099-8128. [PMID: 34277009 PMCID: PMC8264852 DOI: 10.1039/d1tc02048j] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 06/10/2021] [Indexed: 04/14/2023]
Abstract
This review outlines the design strategies which aim to develop high performing n-type materials in the fields of organic thin film transistors (OTFT), organic electrochemical transistors (OECT) and organic thermoelectrics (OTE). Figures of merit for each application and the limitations in obtaining these are set out, and the challenges with achieving consistent and comparable measurements are addressed. We present a thorough discussion of the limitations of n-type materials, particularly their ambient operational instability, and suggest synthetic methods to overcome these. This instability originates from the oxidation of the negative polaron of the organic semiconductor (OSC) by water and oxygen, the potentials of which commonly fall within the electrochemical window of n-type OSCs, and consequently require a LUMO level deeper than ∼-4 eV for a material with ambient stability. Recent high performing n-type materials are detailed for each application and their design principles are discussed to explain how synthetic modifications can enhance performance. This can be achieved through a number of strategies, including utilising an electron deficient acceptor-acceptor backbone repeat unit motif, introducing electron-withdrawing groups or heteroatoms, rigidification and planarisation of the polymer backbone and through increasing the conjugation length. By studying the fundamental synthetic design principles which have been employed to date, this review highlights a path to the development of promising polymers for n-type OSC applications in the future.
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Affiliation(s)
- Sophie Griggs
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford Oxford OX1 3TA UK
| | - Adam Marks
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford Oxford OX1 3TA UK
| | - Helen Bristow
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford Oxford OX1 3TA UK
| | - Iain McCulloch
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford Oxford OX1 3TA UK
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC) Thuwal 23955-6900 Saudi Arabia
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44
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Mun J, Ochiai Y, Wang W, Zheng Y, Zheng YQ, Wu HC, Matsuhisa N, Higashihara T, Tok JBH, Yun Y, Bao Z. A design strategy for high mobility stretchable polymer semiconductors. Nat Commun 2021; 12:3572. [PMID: 34117254 PMCID: PMC8196107 DOI: 10.1038/s41467-021-23798-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 05/14/2021] [Indexed: 01/02/2023] Open
Abstract
As a key component in stretchable electronics, semiconducting polymers have been widely studied. However, it remains challenging to achieve stretchable semiconducting polymers with high mobility and mechanical reversibility against repeated mechanical stress. Here, we report a simple and universal strategy to realize intrinsically stretchable semiconducting polymers with controlled multi-scale ordering to address this challenge. Specifically, incorporating two types of randomly distributed co-monomer units reduces overall crystallinity and longer-range orders while maintaining short-range ordered aggregates. The resulting polymers maintain high mobility while having much improved stretchability and mechanical reversibility compared with the regular polymer structure with only one type of co-monomer units. Interestingly, the crystalline microstructures are mostly retained even under strain, which may contribute to the improved robustness of our stretchable semiconductors. The proposed molecular design concept is observed to improve the mechanical properties of various p- and n-type conjugated polymers, thus showing the general applicability of our approach. Finally, fully stretchable transistors fabricated with our newly designed stretchable semiconductors exhibit the highest and most stable mobility retention capability under repeated strains of 1,000 cycles. Our general molecular engineering strategy offers a rapid way to develop high mobility stretchable semiconducting polymers. Designing intrinsically stretchable semiconducting polymers with suitable charge transport and mechanical properties required for stretchable electronic devices remains a challenge. Here, the authors report terpolymer-based semiconductors with intrinsically high stretchability and mobility.
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Affiliation(s)
- Jaewan Mun
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Yuto Ochiai
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA.,Department of Organic Materials Science, Yamagata University, Yonezawa, Yamagata, Japan
| | - Weichen Wang
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA
| | - Yu Zheng
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Yu-Qing Zheng
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Hung-Chin Wu
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Naoji Matsuhisa
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA.,Department of Electronics and Electrical Engineering, Keio University, Kohoku-ku, Yokohama, Japan
| | - Tomoya Higashihara
- Department of Organic Materials Science, Yamagata University, Yonezawa, Yamagata, Japan
| | - Jeffrey B-H Tok
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Youngjun Yun
- Samsung Advanced Institute of Technology (SAIT), Samsung Electronics, Suwon, South Korea.
| | - Zhenan Bao
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA.
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45
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Lee JW, Ma BS, Kim HJ, Kim TS, Kim BJ. High-Molecular-Weight Electroactive Polymer Additives for Simultaneous Enhancement of Photovoltaic Efficiency and Mechanical Robustness in High-Performance Polymer Solar Cells. JACS AU 2021; 1:612-622. [PMID: 34467323 PMCID: PMC8395705 DOI: 10.1021/jacsau.1c00064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Indexed: 05/13/2023]
Abstract
The development of small-molecule acceptors (SMAs) has significantly enhanced the power conversion efficiency (PCE) of polymer solar cells (PSCs); however, the inferior mechanical properties of SMA-based PSCs often limit their long-term stability and application in wearable power generators. Herein, we demonstrate a simple and effective strategy for enhancing the mechanical robustness and PCE of PSCs by incorporating a high-molecular-weight (MW) polymer acceptor (P A, P(NDI2OD-T2)). The addition of 10-20 wt % P A leads to a more than 4-fold increase in the mechanical ductility of the SMA-based PSCs in terms of the crack onset strain (COS). At the same time, the incorporation of P A into the active layer improves the charge transport and recombination properties, increasing the PCE of the PSC from 14.6 to 15.4%. The added P As act as tie molecules, providing mechanical and electrical bridges between adjacent domains of SMAs. Thus, for the first time, we produce highly efficient and mechanically robust PSCs with a 15% PCE and 10% COS at the same time, thereby demonstrating their great potential as stretchable or wearable power generators. To understand the origin of the dual enhancements realized by P A, we investigate the influence of the P A content on electrical, structural, and morphological properties of the PSCs.
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Affiliation(s)
- Jin-Woo Lee
- Department
of Chemical and Biomolecular Engineering and Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology
(KAIST), Daejeon 34141, Republic of Korea
| | - Boo Soo Ma
- Department
of Chemical and Biomolecular Engineering and Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology
(KAIST), Daejeon 34141, Republic of Korea
| | - Hyeong Jun Kim
- Department
of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Republic of Korea
| | - Taek-Soo Kim
- Department
of Chemical and Biomolecular Engineering and Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology
(KAIST), Daejeon 34141, Republic of Korea
- . (T.-S.K.)
| | - Bumjoon J. Kim
- Department
of Chemical and Biomolecular Engineering and Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology
(KAIST), Daejeon 34141, Republic of Korea
- . (B.J.K.)
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46
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Manzhos S, Chueh CC, Giorgi G, Kubo T, Saianand G, Lüder J, Sonar P, Ihara M. Materials Design and Optimization for Next-Generation Solar Cell and Light-Emitting Technologies. J Phys Chem Lett 2021; 12:4638-4657. [PMID: 33974435 DOI: 10.1021/acs.jpclett.1c00714] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We review some of the most potent directions in the design of materials for next-generation solar cell and light-emitting technologies that go beyond traditional solid-state inorganic semiconductor-based devices, from both the experimental and computational standpoints. We focus on selected recent conceptual advances in tackling issues which are expected to significantly impact applied literature in the coming years. Specifically, we consider solution processability, design of dopant-free charge transport materials, two-dimensional conjugated polymeric semiconductors, and colloidal quantum dot assemblies in the fields of experimental synthesis, characterization, and device fabrication. Key modeling issues that we consider are calculations of optical properties and of effects of aggregation, including recent advances in methods beyond linear-response time-dependent density functional theory and recent insights into the effects of correlation when going beyond the single-particle ansatz as well as in the context of modeling of thermally activated fluorescence.
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Affiliation(s)
- Sergei Manzhos
- School of Materials and Chemical Technology, Tokyo Institute of Technology, Ookayama 2-12-1, Meguro-ku, Tokyo 152-8552, Japan
| | - Chu-Chen Chueh
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
- Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Giacomo Giorgi
- Department of Civil & Environmental Engineering (DICA), Università degli Studi di Perugia, Via G. Duranti 93, 06125 Perugia, Italy
- CNR-SCITEC, 06123 Perugia, Italy
| | - Takaya Kubo
- Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo 153-8904, Japan
| | - Gopalan Saianand
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, 4001 Brisbane, Australia
- Global Center for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Johann Lüder
- Department of Materials and Optoelectronic Science, National Sun Yat-sen University, 80424, No. 70, Lien-Hai Road, Kaohsiung, Taiwan R.O.C
- Center of Crystal Research, National Sun Yat-sen University, 80424, No. 70, Lien-Hai Road, Kaohsiung, Taiwan R.O.C
| | - Prashant Sonar
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, 4001 Brisbane, Australia
| | - Manabu Ihara
- School of Materials and Chemical Technology, Tokyo Institute of Technology, Ookayama 2-12-1, Meguro-ku, Tokyo 152-8552, Japan
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47
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Zhu Q, Xue J, Zhang L, Wen J, Lin B, Naveed HB, Bi Z, Xin J, Zhao H, Zhao C, Zhou K, Frank Liu S, Ma W. Intermolecular Interaction Control Enables Co-optimization of Efficiency, Deformability, Mechanical and Thermal Stability of Stretchable Organic Solar Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2007011. [PMID: 33719196 DOI: 10.1002/smll.202007011] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 02/20/2021] [Indexed: 06/12/2023]
Abstract
Promoting efficiency, deformability, and life expectancy of stretchable organic solar cells (OSCs) have always been key concerns that researchers are committed to solving. However, how to improve them simultaneously remains challenging, as morphology parameters, such as ordered molecular arrangement, beneficial for highly efficient devices actually limits mechanical stability and deformability. In this study, the unfavorable trade-off among these properties has been reconciled in an all-polymer model system utilizing a mechanically deformable guest component. The success of this strategy stems from introducing a highly ductile component without compromising the pristine optimized morphology. Preferable interaction between two donors can maintain the fiber-like structure while enhancing the photocurrent to improve efficiency. Morphology evolution detected via grazing incidence X-ray scattering and in situ UV-vis absorption spectra during stretching have verified the critical role of strengthened interaction on stabilizing morphology against external forces. The strengthened interaction also benefits thermal stability, enabling the ternary films with small efficiency degradation after heating 1500 h under 80 °C. This work highlights the effect of morphology evolution on mechanical stability and provides new insights from the view of intermolecular interaction to fabricate highly efficient, stable, and stretchable/wearable OSCs.
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Affiliation(s)
- Qinglian Zhu
- State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University, Xi'an, 710049, China
| | - Jingwei Xue
- State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University, Xi'an, 710049, China
| | - Lu Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Jialun Wen
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Baojun Lin
- State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University, Xi'an, 710049, China
| | - Hafiz Bilal Naveed
- State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University, Xi'an, 710049, China
| | - Zhaozhao Bi
- State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University, Xi'an, 710049, China
| | - Jingming Xin
- State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University, Xi'an, 710049, China
| | - Heng Zhao
- State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University, Xi'an, 710049, China
| | - Chao Zhao
- State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University, Xi'an, 710049, China
| | - Ke Zhou
- State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University, Xi'an, 710049, China
| | - Shengzhong Frank Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Wei Ma
- State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University, Xi'an, 710049, China
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48
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Galuska LA, Muckley ES, Cao Z, Ehlenberg DF, Qian Z, Zhang S, Rondeau-Gagné S, Phan MD, Ankner JF, Ivanov IN, Gu X. SMART transfer method to directly compare the mechanical response of water-supported and free-standing ultrathin polymeric films. Nat Commun 2021; 12:2347. [PMID: 33879775 PMCID: PMC8058343 DOI: 10.1038/s41467-021-22473-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 03/09/2021] [Indexed: 11/23/2022] Open
Abstract
Intrinsic mechanical properties of sub-100 nm thin films are markedly difficult to obtain, yet an ever-growing necessity for emerging fields such as soft organic electronics. To complicate matters, the interfacial contribution plays a major role in such thin films and is often unexplored despite supporting substrates being a main component in current metrologies. Here we present the shear motion assisted robust transfer technique for fabricating free-standing sub-100 nm films and measuring their inherent structural-mechanical properties. We compare these results to water-supported measurements, exploring two phenomena: 1) The influence of confinement on mechanics and 2) the role of water on the mechanical properties of hydrophobic films. Upon confinement, polystyrene films exhibit increased strain at failure, and reduced yield stress, while modulus is reduced only for the thinnest 19 nm film. Water measurements demonstrate subtle differences in mechanics which we elucidate using quartz crystal microbalance and neutron reflectometry.
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Affiliation(s)
- Luke A Galuska
- Center for Optoelectronic Materials and Devices, School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Eric S Muckley
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA
| | - Zhiqiang Cao
- Center for Optoelectronic Materials and Devices, School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Dakota F Ehlenberg
- Center for Optoelectronic Materials and Devices, School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Zhiyuan Qian
- Center for Optoelectronic Materials and Devices, School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Song Zhang
- Center for Optoelectronic Materials and Devices, School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Simon Rondeau-Gagné
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, ON, Canada, N9B3P4
| | - Minh D Phan
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA
| | - John F Ankner
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA
| | - Ilia N Ivanov
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA
| | - Xiaodan Gu
- Center for Optoelectronic Materials and Devices, School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA.
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49
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Lee H, Moon B, Son SY, Park T, Kang B, Cho K. Charge Trapping in a Low-Crystalline High-Mobility Conjugated Polymer and Its Effects on the Operational Stability of Organic Field-Effect Transistors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:16722-16731. [PMID: 33543611 DOI: 10.1021/acsami.0c20965] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The effects of the microstructure of conjugated polymer thin films on charge trapping and operational stability of organic field-effect transistors (OFETs) are investigated. Device characteristics of OFETs based on two model conjugated polymers, poly(3-hexylthiophene) (P3HT) and a random 3-hexylthiophene-thiophene copolymer (RP33), are compared. P3HT films have high crystallinity and long-range molecular order, whereas RP33 films have low crystallinity and short-range molecular order as well as enhanced polymer backbone planarity. Experimental evidence shows that although the microstructure of the RP33 film provides efficient charge transport pathways, its high degree of structural disorder causes severe shallow trapping of charge carriers, which results in its inferior stability under bias stress. This study demonstrates that low-crystalline conjugated polymers with short-range order can provide a high charge-carrier mobility but at the same time be inappropriate for practical OFETs because of their poor intrinsic operational stability.
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Affiliation(s)
- Hansol Lee
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Byungho Moon
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Sung Yun Son
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Taiho Park
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Boseok Kang
- SKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Kilwon Cho
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
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50
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Ghasemi M, Balar N, Peng Z, Hu H, Qin Y, Kim T, Rech JJ, Bidwell M, Mask W, McCulloch I, You W, Amassian A, Risko C, O'Connor BT, Ade H. A molecular interaction-diffusion framework for predicting organic solar cell stability. NATURE MATERIALS 2021; 20:525-532. [PMID: 33432145 DOI: 10.1038/s41563-020-00872-6] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 11/11/2020] [Indexed: 05/26/2023]
Abstract
Rapid increase in the power conversion efficiency of organic solar cells (OSCs) has been achieved with the development of non-fullerene small-molecule acceptors (NF-SMAs). Although the morphological stability of these NF-SMA devices critically affects their intrinsic lifetime, their fundamental intermolecular interactions and how they govern property-function relations and morphological stability of OSCs remain elusive. Here, we discover that the diffusion of an NF-SMA into the donor polymer exhibits Arrhenius behaviour and that the activation energy Ea scales linearly with the enthalpic interaction parameters χH between the polymer and the NF-SMA. Consequently, the thermodynamically most unstable, hypo-miscible systems (high χ) are the most kinetically stabilized. We relate the differences in Ea to measured and selectively simulated molecular self-interaction properties of the constituent materials and develop quantitative property-function relations that link thermal and mechanical characteristics of the NF-SMA and polymer to predict relative diffusion properties and thus morphological stability.
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Affiliation(s)
- Masoud Ghasemi
- Department of Physics and Organic and Carbon Electronics Laboratories (ORaCEL), North Carolina State University, Raleigh, NC, USA
- Department of Materials Science and Engineering and Organic and Carbon Electronics Laboratories (ORaCEL), North Carolina State University, Raleigh, NC, USA
| | - Nrup Balar
- Department of Mechanical and Aerospace Engineering and Organic and Carbon Electronics Laboratories (ORaCEL), North Carolina State University, Raleigh, NC, USA
| | - Zhengxing Peng
- Department of Physics and Organic and Carbon Electronics Laboratories (ORaCEL), North Carolina State University, Raleigh, NC, USA
| | - Huawei Hu
- Department of Physics and Organic and Carbon Electronics Laboratories (ORaCEL), North Carolina State University, Raleigh, NC, USA
| | - Yunpeng Qin
- Department of Physics and Organic and Carbon Electronics Laboratories (ORaCEL), North Carolina State University, Raleigh, NC, USA
| | - Taesoo Kim
- Department of Materials Science and Engineering and Organic and Carbon Electronics Laboratories (ORaCEL), North Carolina State University, Raleigh, NC, USA
| | - Jeromy J Rech
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Matthew Bidwell
- Department of Chemistry and Centre for Plastic Electronics, Imperial College London, London, UK
| | - Walker Mask
- Department of Chemistry and Center for Applied Energy Research, University of Kentucky, Lexington, KY, USA
| | - Iain McCulloch
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center, Physical Sciences and Engineering Division, Thuwal, Saudi Arabia
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford, UK
| | - Wei You
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Aram Amassian
- Department of Materials Science and Engineering and Organic and Carbon Electronics Laboratories (ORaCEL), North Carolina State University, Raleigh, NC, USA
| | - Chad Risko
- Department of Chemistry and Center for Applied Energy Research, University of Kentucky, Lexington, KY, USA
| | - Brendan T O'Connor
- Department of Mechanical and Aerospace Engineering and Organic and Carbon Electronics Laboratories (ORaCEL), North Carolina State University, Raleigh, NC, USA.
| | - Harald Ade
- Department of Physics and Organic and Carbon Electronics Laboratories (ORaCEL), North Carolina State University, Raleigh, NC, USA.
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