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Lin C, Peng R, Song W, Chen Z, Feng T, Sun D, Bai Y, Ge Z. Multi-component Copolymerized Donors enable Frozen Nano-morphology and Superior Ductility for Efficient Binary Organic Solar Cells. Angew Chem Int Ed Engl 2024; 63:e202407040. [PMID: 38761056 DOI: 10.1002/anie.202407040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 05/15/2024] [Accepted: 05/17/2024] [Indexed: 05/20/2024]
Abstract
Multi-component copolymerized donors (MCDs) have gained significant interest and have been rapidly developed in flexible organic solar cells (f-OSCs) in recent years. However, ensuring the power conversion efficiency (PCE) of f-OSCs while retaining ideal mechanical properties remains an enormous challenge. The fracture strain (FS) value of typical high-efficiency blend films is generally less than 8 %, which is far from the application standards of wearable photovoltaic devices. Therefore, we developed a series of novel MCDs after meticulous molecular design. Among them, the consistent MCD backbone and end-capped functional group formed a highly conjugated molecular plane, and the solubilization and mechanical properties were effectively optimized by modifying the proportion of solubilized alkyl chains. Consequently, due to the formation of entangled structures with a frozen blend film morphology considerably improved the high ductility of the active layer, P10.8/P20.2-TCl exhibited efficient PCE in rigid (18.53 %) and flexible (17.03 %) OSCs, along with excellent FS values (16.59 %) in pristine films, meanwhile, the outstanding FS values of 25.18 % and 12.3 % were achieved by P10.6/P20.4-TCl -based pristine and blend films, respectively, which were one of the highest records achieved by end-capped MCD-based binary OSCs, demonstrating promising application to synchronize the realization of high-efficiency and mechanically ductile flexible OSCs.
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Affiliation(s)
- Congqi Lin
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
- Faculty of Materials and Chemical Engineering, Ningbo University, Ningbo, 315211, P. R. China
| | - Ruixiang Peng
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Wei Song
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Zhenyu Chen
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Tingting Feng
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
- Faculty of Materials and Chemical Engineering, Ningbo University, Ningbo, 315211, P. R. China
| | - Dinghong Sun
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
- Faculty of Materials and Chemical Engineering, Ningbo University, Ningbo, 315211, P. R. China
| | - Yongqi Bai
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Ziyi Ge
- Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
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Song J, Li C, Ma H, Han B, Wang Q, Wang X, Wei D, Bu L, Yang R, Yan H, Sun Y. Optimizing Double-Fibril Network Morphology via Solid Additive Strategy Enables Binary All-Polymer Solar Cells with 19.50% Efficiency. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2406922. [PMID: 39011798 DOI: 10.1002/adma.202406922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/27/2024] [Indexed: 07/17/2024]
Abstract
Double-fibril network morphology (DFNM), in which the donor and the acceptor can self-assemble into a double-fibril structure, is beneficial for exciton dissociation and charge transport in organic solar cells. Herein, it is demonstrated that such DFNM can be constructed and optimized in all-polymer solar cells (all-PSCs) with the assistance of 2-alkoxynaphthalene volatile solid additives. It is revealed that the incorporation of 2-alkoxynaphthalene can induce a stepwise regulation in the aggregation of donor and acceptor molecules during film casting and thermal annealing processes. Through altering the alkoxy of 2-alkoxynaphthalene solid additives, both the intermolecular interactions and molecular miscibility with the host materials can be precisely tuned, which allows for the optimization of the molecular aggregation process and facilitation of molecular self-assembly, and thus leading to reinforced molecular packing and optimized DFNM. As a result, an unprecedented efficiency of 19.50% (certified as 19.1%) is obtained for 2-ethoxynaphthalene-processed PM6:PY-DT-X all-PSCs with excellent photostability (T80 = 1750 h). This work reveals that the optimization of DFNM via solid additive strategy is a promising avenue to boosting the performance of all-PSCs.
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Affiliation(s)
- Jiali Song
- Hangzhou International Innovation Institute, Beihang University, Hangzhou, 311115, P. R. China
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Chao Li
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, P. R. China
| | - Haisheng Ma
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Bingyu Han
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Qianqian Wang
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, P. R. China
| | - Xunchang Wang
- Key Laboratory of Optoelectronic Chemical Materials and Devices (Ministry of Education), School of Optoelectronic Materials & Technology, Jianghan University, Wuhan, 430056, P. R. China
| | - Donghui Wei
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, P. R. China
| | - Laju Bu
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Renqiang Yang
- Key Laboratory of Optoelectronic Chemical Materials and Devices (Ministry of Education), School of Optoelectronic Materials & Technology, Jianghan University, Wuhan, 430056, P. R. China
| | - He Yan
- Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, P. R. China
| | - Yanming Sun
- Hangzhou International Innovation Institute, Beihang University, Hangzhou, 311115, P. R. China
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
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Hu Z, Wang J, Cui C, Liu T, Li Y, Song L, Wen S, Bao X. Efficient and Stable All-Polymer Solar Cells Enabled by Dual Working Mechanism. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311648. [PMID: 38402429 DOI: 10.1002/smll.202311648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/01/2024] [Indexed: 02/26/2024]
Abstract
Ternary strategy with integration characteristics and adaptability is a simple and effective method for blooming of the performance of photovoltaic devices. Herein, a novel wideband gap polymer donor PBB2-Hs is synthesized as the guest component to optimize all-polymer solar cells (all-PSCs). High-energy photon absorption and long exciton lifetime of PBB2-Hs constitute efficient energy transfer. Good miscibility and cascade energy levels promote the formation of alloy-like structure between PBB2-Hs and host system. The dual working mechanisms greatly improve photon capture and charge transfer in active layers. Additionally, the introduction of PBB2-Hs also optimizes the ordered molecular stacking of acceptors and suppresses molecular peristalsis. Upon adding 15 wt% PBB2-Hs, the ternary all-PSC achieved a champion efficiency of 17.66%, and can still maintain 82% photostability (24 h) and 91% storage stability (1000 h) of the original PCE. Moreover, the strong molecular stacking and entanglement between PBB2-Hs and the host material increased the elongation at break of ternary blend film by 1.6 times (16.2%), allowing the flexible device to maintain 83% of the original efficiency after 800 bends (R = 5 mm). This work highlights the effectiveness of guest polymer on simultaneously improving photovoltaic performance, photostability and mechanical stability in all-PSCs.
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Affiliation(s)
- Zunyuan Hu
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- Functional Laboratory of Solar Energy, Shandong Energy Institute, Qingdao, 266101, China
| | - Jianxiao Wang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- Functional Laboratory of Solar Energy, Shandong Energy Institute, Qingdao, 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, China
| | - Chuanlong Cui
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- Functional Laboratory of Solar Energy, Shandong Energy Institute, Qingdao, 266101, China
| | - Tong Liu
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- Functional Laboratory of Solar Energy, Shandong Energy Institute, Qingdao, 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, China
| | - Yonghai Li
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- Functional Laboratory of Solar Energy, Shandong Energy Institute, Qingdao, 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, China
| | - Liang Song
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Shuguang Wen
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- Functional Laboratory of Solar Energy, Shandong Energy Institute, Qingdao, 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, China
| | - Xichang Bao
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
- Functional Laboratory of Solar Energy, Shandong Energy Institute, Qingdao, 266101, China
- Qingdao New Energy Shandong Laboratory, Qingdao, 266101, China
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Liu J, Liu X, Xin J, Zhang Y, Wen L, Liang Q, Miao Z. Dual Function of the Third Component in Ternary Organic Solar Cells: Broaden the Spectrum and Optimize the Morphology. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308863. [PMID: 38287727 DOI: 10.1002/smll.202308863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/25/2023] [Indexed: 01/31/2024]
Abstract
Ternary organic solar cells (T-OSCs) have attracted significant attention as high-performance devices. In recent years, T-OSCs have achieved remarkable progress with power conversion efficiency (PCE) exceeding 19%. However, the introduction of the third component complicates the intermolecular interaction compared to the binary blend, resulting in poor controllability of active layer and limiting performance improvement. To address these issues, dual-functional third components have been developed that not only broaden the spectral range but also optimize morphology. In this review, the effect of the third component on expanding the absorption range of T-OSCs is first discussed. Second, the extra functions of the third component are introduced, including adjusting the crystallinity and molecular stack in active layer, regulating phase separation and purity, altering molecular orientation of the donor or acceptor. Finally, a summary of the current research progress is provided, followed by a discussion of future research directions.
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Affiliation(s)
- Jiangang Liu
- School of Electronics and Information, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Xingpeng Liu
- School of Electronics and Information, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Jingming Xin
- School of Electronics and Information, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Yutong Zhang
- School of Electronics and Information, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Liangquan Wen
- School of Electronics and Information, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Qiuju Liang
- School of Microelectronics, Northwestern Polytechnical University, Xi'an, 710129, China
| | - Zongcheng Miao
- School of Artificial Intelligence, Optics and Electronics (iOPEN), Northwestern Polytechnical University, Xi'an, 710072, China
- School of Electronic Information, Xijing University, Xi'an, 710123, China
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5
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Theunissen D, Smeets S, Maes W. Single-component organic solar cells-Perspective on the importance of chemical precision in conjugated block copolymers. Front Chem 2023; 11:1326131. [PMID: 38694020 PMCID: PMC11061845 DOI: 10.3389/fchem.2023.1326131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 11/17/2023] [Indexed: 05/03/2024] Open
Abstract
Organic photovoltaics (OPV) present a promising thin-film solar cell technology with particular benefits in terms of weight, aesthetics, transparency, and cost. However, despite being studied intensively since the mid 90's, OPV has not entered the mass consumer market yet. Although the efficiency gap with other thin-film photovoltaics has largely been overcome, active layer stability and performance reproducibility issues have not been fully resolved. State-of-the-art OPV devices employ a physical mixture of electron donor and acceptor molecules in a bulk heterojunction active layer. These blends are prone to morphological changes, leading to performance losses over time. On the other hand, in "single-component" organic solar cells, the donor and acceptor constituents are chemically connected within a single material, preventing demixing and thereby enhancing device stability. Novel single-component materials affording reasonably high solar cell efficiencies and improved lifetimes have recently emerged. In particular, the combination of donor and acceptor structures in conjugated block copolymers (CBCs) presents an exciting approach. Nevertheless, the current CBCs are poorly defined from a structural point of view, while synthetic protocols remain unoptimized. More controlled synthesis followed by proper structural analysis of CBCs is, however, essential to develop rational structure-property-device relations and to drive the field forward. In this perspective, we provide a short overview of the state-of-the-art in single-component organic solar cells prepared from CBCs, reflect on their troublesome characterization and the importance of chemical precision in these structures, give some recommendations, and discuss the potential impact of these aspects on the field.
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Affiliation(s)
- Dries Theunissen
- Design and Synthesis of Organic Semiconductors, Institute for Materials Research (IMO-IMOMEC), Hasselt University, Diepenbeek, Belgium
- Associated Lab IMOMEC, IMEC, Diepenbeek, Belgium
- Energyville, Genk, Belgium
| | - Sander Smeets
- Design and Synthesis of Organic Semiconductors, Institute for Materials Research (IMO-IMOMEC), Hasselt University, Diepenbeek, Belgium
- Associated Lab IMOMEC, IMEC, Diepenbeek, Belgium
- Energyville, Genk, Belgium
| | - Wouter Maes
- Design and Synthesis of Organic Semiconductors, Institute for Materials Research (IMO-IMOMEC), Hasselt University, Diepenbeek, Belgium
- Associated Lab IMOMEC, IMEC, Diepenbeek, Belgium
- Energyville, Genk, Belgium
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Qiu D, Zhang H, Tian C, Zhang J, Zhu L, Wei Z, Lu K. Central Core Substitutions and Film-Formation Process Optimization Enable Approaching 19% Efficiency All-Polymer Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2307398. [PMID: 37801215 DOI: 10.1002/adma.202307398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/03/2023] [Indexed: 10/07/2023]
Abstract
Molecular interactions and film-formation processes greatly impact the blend film morphology and device performances of all-polymer solar cells (all-PSCs). Molecular structure, such as the central cores of polymer acceptors, would significantly influence this process. Herein, the central core substitutions of polymer acceptors are adjusted and three quinoxaline (Qx)-fused-core-based materials, PQx1, PQx2, and PQx3 are synthesized. The molecular aggregation ability and intermolecular interaction are systematically regulated, which subsequently influence the film-formation process and determine the resulting blend film morphology. As a result, PQx3, with favorable aggregation ability and moderate interaction with polymer donor PM6, achieves efficient all-PSCs with a high power conversion efficiency (PCE) of 17.60%, which could be further improved to 18.06% after carefully optimizing device annealing and interface layer. This impressive PCE is one of the highest values for binary all-PSCs based on the classical polymer donor PM6. PYF-T-o is also involved in promoting light utilization, and the resulting ternary device shows an impressive PCE of 18.82%. In addition, PM6:PQx3-based devices exhibit high film-thickness tolerance, superior stability, and considerable potential for large-scale devices (16.23% in 1 cm2 device). These results highlight the importance of structure optimization of polymer acceptors and film-formation process control for obtaining efficient and stable all-PSCs.
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Affiliation(s)
- Dingding Qiu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China
- Sino-Danish Center for Education and Research, Sino-Danish College, University of Chinese Academy of Sciences, Beijing, 100049, China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hao Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chenyang Tian
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jianqi Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Lingyun Zhu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Zhixiang Wei
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kun Lu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
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Tan X, Jian J, Zheng X, Zhao J, Huang J. Improving Photovoltaic Performance of All-Polymer Solar Cells by Adding an Amorphous B←N Embedded Polymer as the Third Component. Macromol Rapid Commun 2023; 44:e2300375. [PMID: 37579197 DOI: 10.1002/marc.202300375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/23/2023] [Indexed: 08/16/2023]
Abstract
Currently, most of the disclosed ternary strategies to improve photovoltaic performance of all-polymer solar cells (all-PSCs) commonly focus on the guest polymers having similar structures with the host polymer donors or acceptors. Herein, this work develops a distinctive ternary method that adding an amorphous B←N embedded polymer named BN-Cl-2fT to a crystallized host polymer blend of PM6 (a commercialized polymer donor) and PY-TT (a copolymer of Y6 and thieno[3,2-b]thiophene). Although the structures between BN-Cl-2fT and PM6 and PY-TT are completely different, excellent miscibility is found between BN-Cl-2fT and both of the host PM6 and PY-TT, which can be interpreted by the crowded phenyl groups anchoring along the backbone of BN-Cl-2fT, leading to weak self-aggregation. Glazing incidence wide-angle X-ray diffraction (GIWAXS) measurements explicitly confirm the crystallization of PM6 and PY-TT and amorphous feature of BN-Cl-2fT. Furthermore, adding 10 wt% BN-Cl-2fT to PM6:PY-TT can significantly enhance the crystallization of the host polymers. Thus the ternary devices based on PM6:PY-TT:BN-Cl-2fT afford promote short-circuit current density (JSC , 23.29 vs. 21.80 mA cm-2 ), fill factor (FF, 62.4% vs. 60.0%), and power conversion efficiency (PCE, 13.70% vs. 12.23%) in contrast to these parameters of binary devices based on PM6:PY-TT. This work provides a unique and enlightening avenue to design high performance all-PSCs by adding amorphous B←N embedded polymers as guest component to enhance host-crystallization.
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Affiliation(s)
- Xueyan Tan
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Junyang Jian
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Xueqiong Zheng
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Jinying Zhao
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Jianhua Huang
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
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Wan J, Wang T, Sun R, Wu X, Wang S, Zhang M, Min J. Enabling Highly Efficient and Thermal-Stable Polymer Solar Cells through Semi-Alloy Acceptors Composed of a Hinge-Like Dimer: A Versatile Doping Protocol. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302592. [PMID: 37211895 DOI: 10.1002/adma.202302592] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/12/2023] [Indexed: 05/23/2023]
Abstract
The simultaneous improvement of power conversion efficiency (PCE) and thermal stability is a critical scientific challenge in advancing the commercial applications of polymer solar cells. To address this challenge, a dumbbell-shaped dimeric acceptor, DT19, is successfully designed and synthesized. It is incorporated as a third component into the PM1:BTP-eC9 system. This ternary strategy demonstrates a synergistic enhancement of the PCE and thermal stability of the host binary system. In particular, the PM1:BTP-eC9:DT19 system maintains a PCE of over 90% even after heating at 120 °C for 200 h. Additionally, the dimer-doping ternary strategy exhibits excellent generality for the other four Y-series systems and outperforms ternary systems containing alloy-like acceptors in terms of thermal stability. It is because DT19, with its hinge-like structure, can form a semi-alloy acceptor with the host acceptor, leading to strong interchain entanglement with the polymer donor, thus overcoming phase separation and excessive aggregation under thermal stress. This new type of dimeric material, which can synergistically enhance the device efficiency and thermal stability of active layers, presents promising application prospects.
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Affiliation(s)
- Ji Wan
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| | - Tao Wang
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| | - Rui Sun
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| | - Xiaohei Wu
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| | - Shanshan Wang
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| | - Meimei Zhang
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| | - Jie Min
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
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Ma R, Fan Q, Dela Peña TA, Wu B, Liu H, Wu Q, Wei Q, Wu J, Lu X, Li M, Ma W, Li G. Unveiling the Morphological and Physical Mechanism of Burn-in Loss Alleviation by Ternary Matrix Toward Stable and Efficient All-Polymer Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2212275. [PMID: 36762447 DOI: 10.1002/adma.202212275] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/22/2023] [Indexed: 05/05/2023]
Abstract
All-polymer solar cells (All-PSCs) are considered the most promising candidate in achieving both efficient and stable organic photovoltaic devices, yet the field has rarely presented an in-depth understanding of corresponding device stability while efficiency is continuously boosted via the innovation of polymer acceptors. Herein, a ternary matrix is built for all-PSCs with optimized morphology, improved film ductility and importantly, boosted efficiency and better operational stability than its parental binary counterparts, as a platform to study the underlying mechanism. The target system PQM-Cl:PTQ10:PY-IT (0.8:0.2:1.2) exhibits an alleviated burn-in loss of morphology and efficiency under light soaking, which supports its promoted device lifetime. The comprehensive characterizations of fresh and light-soaked active layers lead to a clear illustration of opposite morphological and physical degradation direction of PQM-Cl and PTQ10, thus resulting in a delicate balance at the optimal ternary system. Specifically, the enlarging tendency of PQM-Cl and shrinking preference of PTQ10 in terms of phase separation leads to a stable morphology in their mixing phase; the hole transfer kinetics of PQM-Cl:PY-IT host is stabilized by incorporating PTQ10. This work succeeds in reaching a deep insight into all-PSC's stability promotion by a rational ternary design, which booms the prospect of gaining high-performance all-PSCs.
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Affiliation(s)
- Ruijie Ma
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), Guangdong-Hong Kong-Macao (GHM) Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, China
| | - Qunping Fan
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Top Archie Dela Peña
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, 999077, China
- Advanced Materials Thrust, Function Hub, The Hong Kong University of Science and Technology, Nansha, Guangzhou, Guangdong, China
| | - Baohua Wu
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Heng Liu
- Department of Physics, Chinese University of Hong Kong, New Territories, Hong Kong, Hong Kong, 999077, China
| | - Qiang Wu
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Qi Wei
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, 999077, China
| | - Jiaying Wu
- Advanced Materials Thrust, Function Hub, The Hong Kong University of Science and Technology, Nansha, Guangzhou, Guangdong, China
| | - Xinhui Lu
- Department of Physics, Chinese University of Hong Kong, New Territories, Hong Kong, Hong Kong, 999077, China
| | - Mingjie Li
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, 999077, China
| | - Wei Ma
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Gang Li
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), Guangdong-Hong Kong-Macao (GHM) Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, China
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Guo J, Xia X, Qiu B, Zhang J, Qin S, Li X, Lai W, Lu X, Meng L, Zhang Z, Li Y. Manipulating Polymer Backbone Configuration via Halogenated Asymmetric End-Groups Enables Over 18% Efficiency All-Polymer Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211296. [PMID: 36689736 DOI: 10.1002/adma.202211296] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/12/2023] [Indexed: 06/17/2023]
Abstract
High-performance all-polymer solar cells (all-PSCs) deeply rely on the joint contributions of desirable optical absorption, adaptive energy levels, and appropriate morphology. Herein, two structural analogous polymerized small-molecule acceptors (PSMAs), PYFCl-T and PYF&PYCl-T, are synthesized, and then incorporated into the PM6:PY-IT binary blends to construct ternary all-PSCs. Due to the superior compatibility of PY-IT and PYFCl-T, the ternary all-PSC based on PM6:PY-IT:PYFCl-T with 10 wt% PYFCl-T, presents higher and more balanced charge mobility, suppressed charge recombination, and faster charge-transfer kinetics, resulting in an outstanding power conversion efficiency (PCE) of 18.12% with enhanced Jsc and FF, which is much higher than that (PCE of 16.09%) of the binary all-PSCs based on PM6:PY-IT. Besides, the ternary all-PSCs also exhibit improved photostability. The conspicuous performance enhancement principally should give the credit to the miscibility-driven phase optimization of the donor and acceptor. These findings highlight the significance of polymer-backbone configuration modulation of PSMAs in morphology optimization toward boosting the device properties of all-PSCs.
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Affiliation(s)
- Jing Guo
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xinxin Xia
- Department of Physics, The Chinese University of Hong Kong, New Territories, Hong Kong, 999077, China
| | - Beibei Qiu
- Key Laboratory of Solid State Optoelectronic Devices of Zhejiang Province, College of Physics and Electronic Information Engineering, Zhejiang Normal University, Jinhua, Zhejiang, 321004, China
| | - Jinyuan Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Shucheng Qin
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaojun Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Wenbin Lai
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xinhui Lu
- Department of Physics, The Chinese University of Hong Kong, New Territories, Hong Kong, 999077, China
| | - Lei Meng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhanjun Zhang
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yongfang Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, China
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