1
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Zhou T, Jin W, Li Y, Xu X, Duan Y, Li R, Yu L, Peng Q. Crossbreeding Effect of Chalcogenation and Iodination on Benzene Additives Enables Optimized Morphology and 19.68% Efficiency of Organic Solar Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2401405. [PMID: 38528662 DOI: 10.1002/advs.202401405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/05/2024] [Indexed: 03/27/2024]
Abstract
Volatile solid additives have attracted increasing attention in optimizing the morphology and improving the performance of currently dominated non-fullerene acceptor-based organic solar cells (OSCs). However, the underlying principles governing the rational design of volatile solid additives remain elusive. Herein, a series of efficient volatile solid additives are successfully developed by the crossbreeding effect of chalcogenation and iodination for optimizing the morphology and improving the photovoltaic performances of OSCs. Five benzene derivatives of 1,4-dimethoxybenzene (DOB), 1-iodo-4-methoxybenzene (OIB), 1-iodo-4-methylthiobenzene (SIB), 1,4-dimethylthiobenzene (DSB) and 1,4-diiodobenzene (DIB) are systematically studied, where the widely used DIB is used as the reference. The effect of chalcogenation and iodination on the overall property is comprehensively investigated, which indicates that the versatile functional groups provided various types of noncovalent interactions with the host materials for modulating the morphology. Among them, SIB with the combination of sulphuration and iodination enabled more appropriate interactions with the host blend, giving rise to a highly ordered molecular packing and more favorable morphology. As a result, the binary OSCs based on PM6:L8-BO and PBTz-F:L8-BO as well as the ternary OSCs based on PBTz-F:PM6:L8-BO achieved impressive high PCEs of 18.87%, 18.81% and 19.68%, respectively, which are among the highest values for OSCs.
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Affiliation(s)
- Tao Zhou
- School of Chemical Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Wenwen Jin
- School of Chemical Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yinfeng Li
- School of Chemical Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Xiaopeng Xu
- School of Chemical Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yuwei Duan
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, P. R. China
| | - Ruipeng Li
- National Synchrotron Light Source II Brookhaven National Lab, Suffolk, Upton, NY, 11973, USA
| | - Liyang Yu
- School of Chemical Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Qiang Peng
- School of Chemical Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu, 610059, P. R. China
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2
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Fu J, Yang Q, Huang P, Chung S, Cho K, Kan Z, Liu H, Lu X, Lang Y, Lai H, He F, Fong PWK, Lu S, Yang Y, Xiao Z, Li G. Rational molecular and device design enables organic solar cells approaching 20% efficiency. Nat Commun 2024; 15:1830. [PMID: 38418862 PMCID: PMC10902355 DOI: 10.1038/s41467-024-46022-3] [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: 07/25/2023] [Accepted: 02/12/2024] [Indexed: 03/02/2024] Open
Abstract
For organic solar cells to be competitive, the light-absorbing molecules should simultaneously satisfy multiple key requirements, including weak-absorption charge transfer state, high dielectric constant, suitable surface energy, proper crystallinity, etc. However, the systematic design rule in molecules to achieve the abovementioned goals is rarely studied. In this work, guided by theoretical calculation, we present a rational design of non-fullerene acceptor o-BTP-eC9, with distinct photoelectric properties compared to benchmark BTP-eC9. o-BTP-eC9 based device has uplifted charge transfer state, therefore significantly reducing the energy loss by 41 meV and showing excellent power conversion efficiency of 18.7%. Moreover, the new guest acceptor o-BTP-eC9 has excellent miscibility, crystallinity, and energy level compatibility with BTP-eC9, which enables an efficiency of 19.9% (19.5% certified) in PM6:BTP-C9:o-BTP-eC9 based ternary system with enhanced operational stability.
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Affiliation(s)
- Jiehao Fu
- Department of Electrical and Electronic Engineering, Research Institute for Smart Energy (RISE), Photonic Research Institute (PRI), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, PR China
| | - Qianguang Yang
- School of Materials Science and Engineering, Taizhou University, Taizhou, 318000, PR China
- Thin-Film Solar Cell Technology Research Center, Chongqing Institute of Green and Intelligent Technology, Chongqing School, University of Chinese Academy of Sciences (UCAS Chongqing), Chinese Academy of Sciences, Chongqing, 400714, PR China
- University of Chinese Academy of Sciences, 100049, Beijing, PR China
| | - Peihao Huang
- Thin-Film Solar Cell Technology Research Center, Chongqing Institute of Green and Intelligent Technology, Chongqing School, University of Chinese Academy of Sciences (UCAS Chongqing), Chinese Academy of Sciences, Chongqing, 400714, PR China
- University of Chinese Academy of Sciences, 100049, Beijing, PR China
| | - Sein Chung
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 37673, South Korea
| | - Kilwon Cho
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 37673, South Korea
| | - Zhipeng Kan
- School of Physical Science and Technology, Guangxi University, Nanning, 530004, PR China
| | - Heng Liu
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, 999077, PR China
| | - Xinhui Lu
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, 999077, PR China
| | - Yongwen Lang
- Department of Electrical and Electronic Engineering, Research Institute for Smart Energy (RISE), Photonic Research Institute (PRI), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, PR China
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, PR China
| | - Hanjian Lai
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, PR China
| | - Feng He
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, PR China
| | - Patrick W K Fong
- Department of Electrical and Electronic Engineering, Research Institute for Smart Energy (RISE), Photonic Research Institute (PRI), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, PR China
| | - Shirong Lu
- School of Materials Science and Engineering, Taizhou University, Taizhou, 318000, PR China.
| | - Yang Yang
- Department of Materials Science and Engineering, University of California Los Angeles (UCLA), Los Angeles, CA, 90095, USA
| | - Zeyun Xiao
- Thin-Film Solar Cell Technology Research Center, Chongqing Institute of Green and Intelligent Technology, Chongqing School, University of Chinese Academy of Sciences (UCAS Chongqing), Chinese Academy of Sciences, Chongqing, 400714, PR China.
- University of Chinese Academy of Sciences, 100049, Beijing, PR China.
| | - Gang Li
- Department of Electrical and Electronic Engineering, Research Institute for Smart Energy (RISE), Photonic Research Institute (PRI), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, PR China.
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3
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Yu R, Shi R, He Z, Zhang T, Li S, Lv Q, Sha S, Yang C, Hou J, Tan Z. Thermodynamic Phase Transition of Three-Dimensional Solid Additives Guiding Molecular Assembly for Efficient Organic Solar Cells. Angew Chem Int Ed Engl 2023; 62:e202308367. [PMID: 37581342 DOI: 10.1002/anie.202308367] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 08/16/2023]
Abstract
Fine-tuning the thermodynamic self-assembly of molecules via volatile solid additives has emerged to be an effective way to construct high-performance organic solar cells. Here, three-dimensional structured solid molecules have been designed and applied to facilitate the formation of organized molecular assembly in the active layer. By means of systematic theory analyses and film-morphology characterizations based on four solid candidates, we preselected the optimal one, 4-fluoro-N,N-diphenylaniline (FPA), which possesses good volatility and strong charge polarization. The three-dimensional solids can induce molecular packing in active layers via strong intermolecular interactions and subsequently provide sufficient space for the self-reassembly of active layers during the thermodynamic transition process. Benefitting from the optimized morphology with improved charge transport and reduced energy disorder in the FPA-processed devices, high efficiencies of over 19 % were achieved. The strategy of three-dimensional additives inducing ordered self-assembly structure represents a practical approach for rational morphology control in highly efficient devices, contributing to deeper insights into the structural design of efficient volatile solid additives.
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Affiliation(s)
- Runnan Yu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Rui Shi
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Zhangwei He
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Tao Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Shuang Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Qianglong Lv
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Shihao Sha
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Chunhe Yang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing Jiaotong University, Beijing, 100044, P. R. China
| | - Jianhui Hou
- State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Zhan'ao Tan
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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4
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Huang X, Sun Y, Zhao Z, Chung S, Cho K, Kan Z. Triggering the Donor-Acceptor Phase Segregation with Solid Additives Enables 16.5% Efficiency in All-Polymer Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2023; 15:44012-44021. [PMID: 37676970 DOI: 10.1021/acsami.3c07350] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
All-polymer solar cells have attracted considerable research interest due to their superior morphological stabilities, stretchability, and mechanical durability. However, the morphology optimization of the all-polymer bulk heterojunctions remains challenging due to the two long conjugated polymer chains, limiting its power conversion efficiency. Herein, we focus on the donor-acceptor phase segregation of an all-polymer active layer composed of PM6/PY-IT, a state-of-the-art all-polymer combination, by the introduction of volatile solid additives. Especially with 1,3-dibromo-5-chlorobenzene (DBCl) as the processing additive, we could effectively tune the miscibility between PM6 and PY-IT and thus optimize the phase segregation of the polymer donor and acceptor. Due to the synergetic effects on the favorable phase segregation and desired donor-acceptor distribution, the DBCl-treated devices feature the evident improvement of charge transport and collection, accompanied by the suppressed trap-assisted charge recombination. We consequently achieved a champion device efficiency of 16.5% (16.4% averaged), which is a 13% improvement compared with the control device without DBCl (14.6%). Our results highlight the importance of altering the miscibility of the polymer donor-acceptor pairs for practical applications of high-performance all-polymer solar cells.
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Affiliation(s)
- Xiaodong Huang
- Center on Nanoenergy Research, Guangxi Colleges and Universities Key Laboratory of Blue Energy and Systems Integration, Institute of Science and Technology for Carbon Peak & Neutrality, Guangxi University, Nanning 530004, China
| | - Yuqing Sun
- Center on Nanoenergy Research, Guangxi Colleges and Universities Key Laboratory of Blue Energy and Systems Integration, Institute of Science and Technology for Carbon Peak & Neutrality, Guangxi University, Nanning 530004, China
| | - Zhenmin Zhao
- Center on Nanoenergy Research, Guangxi Colleges and Universities Key Laboratory of Blue Energy and Systems Integration, Institute of Science and Technology for Carbon Peak & Neutrality, Guangxi University, Nanning 530004, China
| | - Sein Chung
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, South Korea
| | - Kilwon Cho
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, South Korea
| | - Zhipeng Kan
- Center on Nanoenergy Research, Guangxi Colleges and Universities Key Laboratory of Blue Energy and Systems Integration, Institute of Science and Technology for Carbon Peak & Neutrality, Guangxi University, Nanning 530004, China
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Nanning 530004, China
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5
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Fan B, Zhong W, Gao W, Fu H, Lin FR, Wong RWY, Liu M, Zhu C, Wang C, Yip HL, Liu F, Jen AKY. Understanding the Role of Removable Solid Additives: Selective Interaction Contributes to Vertical Component Distributions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302861. [PMID: 37164341 DOI: 10.1002/adma.202302861] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/09/2023] [Indexed: 05/12/2023]
Abstract
Sequentially deposited organic solar cells (SD-OSCs) have attracted great attention owing to their ability in achieving a more favorable, vertically phase-separated morphology to avoid the accumulation of counter charges at absorber/transporting layer interfaces. However, the processing of SD-OSCs is still quite challenging in preventing the penetration of small-molecule acceptors into the polymer donor layer via erosion or swelling. Herein, solid additives (SAs) with varied electrostatic potential distributions and steric hinderance are introduced into SD-OSCs to investigate the effect of evaporation dynamics and selective interaction on vertical component distribution. Multiple modelings indicate that the π-π interaction dominates the interactions between aromatic SAs and active layer components. Among them, p-dibromobenzene shows a stronger interaction with the donor while 2-chloronaphthalene (2-CN) interacts more preferably with acceptor. Combining the depth-dependent morphological study aided by multiple X-ray scattering methods, it is concluded that the evaporation of SAs can drive the stronger-interaction component upward to the surface, while having minor impact on the overall molecular packing. Ultimately, the 2-CN-treated devices with reduced acceptor concentration at the bottom surface deliver a high power conversion efficiency of 19.2%, demonstrating the effectiveness of applying selective interactions to improve the vertical morphology of OSCs by using SAs with proper structure.
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Affiliation(s)
- Baobing Fan
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Institute of Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
| | - Wenkai Zhong
- Frontiers Science Center for Transformative Molecules, In-Situ Center for Physical Science and Center of Hydrogen Science, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 200240, Shanghai, P. R. China
| | - Wei Gao
- Institute of Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Department of Material Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
| | - Huiting Fu
- Institute of Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Department of Material Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
| | - Francis R Lin
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Institute of Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
| | - Reese W-Y Wong
- Department of Material Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
| | - Ming Liu
- Institute of Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Department of Material Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
| | - Chenhui Zhu
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Cheng Wang
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Hin-Lap Yip
- Institute of Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Department of Material Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
| | - Feng Liu
- Frontiers Science Center for Transformative Molecules, In-Situ Center for Physical Science and Center of Hydrogen Science, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 200240, Shanghai, P. R. China
| | - Alex K-Y Jen
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Institute of Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Department of Material Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
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6
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Fu J, Fong PWK, Liu H, Huang CS, Lu X, Lu S, Abdelsamie M, Kodalle T, Sutter-Fella CM, Yang Y, Li G. 19.31% binary organic solar cell and low non-radiative recombination enabled by non-monotonic intermediate state transition. Nat Commun 2023; 14:1760. [PMID: 36997533 PMCID: PMC10063688 DOI: 10.1038/s41467-023-37526-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 03/21/2023] [Indexed: 04/03/2023] Open
Abstract
Non-fullerene acceptors based organic solar cells represent the frontier of the field, owing to both the materials and morphology manipulation innovations. Non-radiative recombination loss suppression and performance boosting are in the center of organic solar cell research. Here, we developed a non-monotonic intermediate state manipulation strategy for state-of-the-art organic solar cells by employing 1,3,5-trichlorobenzene as crystallization regulator, which optimizes the film crystallization process, regulates the self-organization of bulk-heterojunction in a non-monotonic manner, i.e., first enhancing and then relaxing the molecular aggregation. As a result, the excessive aggregation of non-fullerene acceptors is avoided and we have achieved efficient organic solar cells with reduced non-radiative recombination loss. In PM6:BTP-eC9 organic solar cell, our strategy successfully offers a record binary organic solar cell efficiency of 19.31% (18.93% certified) with very low non-radiative recombination loss of 0.190 eV. And lower non-radiative recombination loss of 0.168 eV is further achieved in PM1:BTP-eC9 organic solar cell (19.10% efficiency), giving great promise to future organic solar cell research.
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Affiliation(s)
- Jiehao Fu
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), Photonic Research Institute (PRI), Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
| | - Patrick W K Fong
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), Photonic Research Institute (PRI), Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
| | - Heng Liu
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, 999077, China
| | - Chieh-Szu Huang
- Department of Materials Science and Engineering, University of California Los Angeles (UCLA), Los Angeles, CA, 90095, USA
| | - Xinhui Lu
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, 999077, China
| | - Shirong Lu
- School of Materials Science and Engineering, Taizhou University, Taizhou, 318000, China
| | - Maged Abdelsamie
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- Materials Science and Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Tim Kodalle
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | | | - Yang Yang
- Department of Materials Science and Engineering, University of California Los Angeles (UCLA), Los Angeles, CA, 90095, USA.
| | - Gang Li
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), Photonic Research Institute (PRI), Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, China.
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China.
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7
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Haque A, Alenezi KM, Khan MS, Wong WY, Raithby PR. Non-covalent interactions (NCIs) in π-conjugated functional materials: advances and perspectives. Chem Soc Rev 2023; 52:454-472. [PMID: 36594823 DOI: 10.1039/d2cs00262k] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The design and development of functional materials with real-life applications are highly demanding. Understanding and controlling inter- and intra-molecular interactions provide opportunities to design new materials. A judicious manipulation of the molecular structure significantly alters such interactions and can boost selected properties and functions of the material. There is burgeoning evidence of the beneficial effects of non-covalent interactions (NCIs), showing that manipulating NCIs may generate functional materials with a wide variety of physical properties leading to applications in catalysis, drug delivery, crystal engineering, etc. This prompted us to review the implications of NCIs on the molecular packing, optical properties, and applications of functional π-conjugated materials. To this end, this tutorial review will cover different types of interactions (electrostatic, π-interactions, metallophilic, etc.) and their impact on π-conjugated materials. Attempts have also been made to delineate the effects of weak interactions on opto-electronic (O-E) applications.
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Affiliation(s)
- Ashanul Haque
- Department of Chemistry, College of Science, University of Hail, Kingdom of Saudi Arabia.
| | - Khalaf M Alenezi
- Department of Chemistry, College of Science, University of Hail, Kingdom of Saudi Arabia.
| | - Muhammad S Khan
- Department of Chemistry, Sultan Qaboos University, Al-Khod, Muscat, Oman.
| | - Wai-Yeung Wong
- Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China.
| | - Paul R Raithby
- Department of Chemistry, University of Bath, Claverton Down, Bath, Avon BA2 7AY, UK.
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8
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Li C, Gu X, Chen Z, Han X, Yu N, Wei Y, Gao J, Chen H, Zhang M, Wang A, Zhang J, Wei Z, Peng Q, Tang Z, Hao X, Zhang X, Huang H. Achieving Record-Efficiency Organic Solar Cells upon Tuning the Conformation of Solid Additives. J Am Chem Soc 2022; 144:14731-14739. [PMID: 35856335 PMCID: PMC9394461 DOI: 10.1021/jacs.2c05303] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Volatile solid additives (SADs) are considered as a simple yet effective approach to tune the film morphology for high-performance organic solar cells (OSCs). However, the structural effects of the SADs on the photovoltaic performance are still elusive. Herein, two volatilizable SADs were designed and synthesized. One is SAD1 with twisted conformation, while the other one is planar SAD2 with the S···O noncovalent intramolecular interactions (NIIs). The theoretical and experimental results revealed that the planar SAD2 with smaller space occupation can more easily insert between the Y6 molecules, which is beneficial to form a tighter intermolecular packing mode of Y6 after thermal treatment. As a result, the SAD2-treated OSCs exhibited less recombination loss, more balanced charge mobility, higher hole transfer rate, and more favorable morphology, resulting in a record power conversion efficiency (PCE) of 18.85% (certified PCE: 18.7%) for single-junction binary OSCs. The universality of this study shed light on understanding the conformation effects of SADs on photovoltaic performances of OSCs.
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Affiliation(s)
- Congqi Li
- College of Materials Science and Opto-Electronic Technology, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physics, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Xiaobin Gu
- College of Materials Science and Opto-Electronic Technology, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physics, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Zhihao Chen
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, Shandong, China
| | - Xiao Han
- College of Materials Science and Opto-Electronic Technology, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physics, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Na Yu
- Center for Advanced Low-Dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yanan Wei
- College of Materials Science and Opto-Electronic Technology, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physics, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Jinhua Gao
- College of Materials Science and Opto-Electronic Technology, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physics, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Hao Chen
- College of Materials Science and Opto-Electronic Technology, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physics, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Meng Zhang
- College of Materials Science and Opto-Electronic Technology, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physics, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Ao Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Jianqi Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Zhixiang Wei
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Qian Peng
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Zheng Tang
- Center for Advanced Low-Dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Xiaotao Hao
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, Shandong, China
| | - Xin Zhang
- College of Materials Science and Opto-Electronic Technology, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physics, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Hui Huang
- College of Materials Science and Opto-Electronic Technology, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physics, University of Chinese Academy of Sciences, Beijing 100190, China
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9
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Domain size control in all-polymer solar cells. iScience 2022; 25:104090. [PMID: 35372809 PMCID: PMC8971947 DOI: 10.1016/j.isci.2022.104090] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 02/24/2022] [Accepted: 03/11/2022] [Indexed: 11/21/2022] Open
Abstract
In all polymer solar cells (all-PSCs), the domain size is critical for device performance. In highly crystalline polymer blends, however, precisely adjusting the domain size remains a significant challenge because of the simultaneous crystallization of both components. Herein, a strategy that promotes acceptor and donor to crystallize separately was proposed. Take PBDB-T/N2200 blends for instance; the solution state and confined crystallization were combined, which induced the crystallization of N2200, and PBDB-T occurred during the film-forming process and at thermal annealing stage. This separated crystallization process lowers the driving force of phase separation without affecting the degree of crystallinity of the blends. Thus, an interpenetrating network with high crystallinity and proper domain size was obtained, which boosted the power conversion efficiency to 7.59%. Importantly, the relation between pre-aggregation and domain size was established, which may be a guide to precisely adjust the active layer’s domain size in all-PSCs. This strategy decreases domain size without sacrificing crystallinity A phase diagram about solution state and domain size was proposed
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10
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Qin J, Yang Q, Oh J, Chen S, Odunmbaku GO, Ouedraogo NAN, Yang C, Sun K, Lu S. Volatile Solid Additive-Assisted Sequential Deposition Enables 18.42% Efficiency in Organic Solar Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105347. [PMID: 35072347 PMCID: PMC8948555 DOI: 10.1002/advs.202105347] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 12/31/2021] [Indexed: 05/15/2023]
Abstract
Morphology optimization of active layer plays a critical role in improving the performance of organic solar cells (OSCs). In this work, a volatile solid additive-assisted sequential deposition (SD) strategy is reported to regulate the molecular order and phase separation in solid state. The OSC adopts polymer donor D18-Cl and acceptor N3 as active layer, as well as 1,4-diiodobenzene (DIB) as volatile additive. Compared to the D18-Cl:N3 (one-time deposition of mixture) and D18-Cl/N3 (SD) platforms, the D18-Cl/N3(DIB) device based on DIB-assisted SD method exhibits a finer phase separation with greatly enhanced molecular crystallinity. The optimal morphology delivers superior charge transport and extraction, offering a champion power conversion efficiency of 18.42% with significantly enhanced short-circuit current density (Jsc ) of 27.18 mA cm-2 and fill factor of 78.8%. This is one of the best performances in binary SD OSCs to date. Angle-dependent grazing-incidence wide-angle X-ray scattering technique effectively reveals the vertical phase separation and molecular crystallinity of the active layer. This work demonstrates the combination of volatile solid additive and sequential deposition is an effective method to develop high-performance OSCs.
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Affiliation(s)
- Jianqiang Qin
- MOE Key Laboratory of Low‐Grade Energy Utilization Technologies and SystemsSchool of Energy & Power EngineeringChongqing UniversityChongqing400044P. R. China
- Chongqing Institute of Green and Intelligent TechnologyChinese Academy of SciencesChongqing400714P. R. China
| | - Qianguang Yang
- Chongqing Institute of Green and Intelligent TechnologyChinese Academy of SciencesChongqing400714P. R. China
| | - Jiyeon Oh
- Department of Energy EngineeringSchool of Energy and Chemical EngineeringPerovtronics Research CenterLow Dimensional Carbon Materials CenterUlsan National Institute of Science and Technology (UNIST)Ulsan44919Republic of Korea
| | - Shanshan Chen
- MOE Key Laboratory of Low‐Grade Energy Utilization Technologies and SystemsSchool of Energy & Power EngineeringChongqing UniversityChongqing400044P. R. China
| | - George Omololu Odunmbaku
- MOE Key Laboratory of Low‐Grade Energy Utilization Technologies and SystemsSchool of Energy & Power EngineeringChongqing UniversityChongqing400044P. R. China
| | - Nabonswendé Aïda Nadège Ouedraogo
- MOE Key Laboratory of Low‐Grade Energy Utilization Technologies and SystemsSchool of Energy & Power EngineeringChongqing UniversityChongqing400044P. R. China
| | - Changduk Yang
- Department of Energy EngineeringSchool of Energy and Chemical EngineeringPerovtronics Research CenterLow Dimensional Carbon Materials CenterUlsan National Institute of Science and Technology (UNIST)Ulsan44919Republic of Korea
| | - Kuan Sun
- MOE Key Laboratory of Low‐Grade Energy Utilization Technologies and SystemsSchool of Energy & Power EngineeringChongqing UniversityChongqing400044P. R. China
| | - Shirong Lu
- Chongqing Institute of Green and Intelligent TechnologyChinese Academy of SciencesChongqing400714P. R. China
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11
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Hsieh CM, Chuang MR, Yamada Y, Su CJ, Chang YJ, Murata M, Jeng US, Chuang SC. p-Tetrafluorophenylene Divinylene-Bridged Nonfullerene Acceptors as Binary Components or Additives for High-Efficiency Organic Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2021; 13:61473-61486. [PMID: 34918898 DOI: 10.1021/acsami.1c19943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In this study, we designed, synthesized, and characterized an A-D-A'-D-A-type indacenodithienothiophene (IDTT)-based molecular acceptor that exhibited a broader absorption range and higher lowest unoccupied molecular orbital energy level with a nearly comparable band gap compared to a well-known electron acceptor IT-M. The designed electron-deficient molecular acceptor FB-2IDTT-4Cl with a fluorinated benzene tether (FB), that is, p-tetrafluorophenylene divinylene, demonstrated long-wavelength absorption and high hole and electron charge mobility in the thin films blended with the electron donor PBDB-T for an inverted organic photovoltaic (OPV) binary device, resulting in a maximum power conversion efficiency (PCE) of 11.4%. Such a performance is comparably as high as that of the device with PBDB-T:IT-M, and particularly, it was 18.8% higher than that of the devices with ITIC-4Cl as the acceptor (PCE 9.1% ± 0.5%) and 24.9% higher than that of the devices with the thiophene-flanked benzothiadiazole-bridged acceptor CNDTBT-IDTT-FINCN (PCE 9.01% ± 0.13%). Furthermore, varying the illumination intensity from 200 to 2000 lux increased the Jsc and Voc values as well as the FF values, thus leading to increased PCE levels. In addition, the best PCE of the PM6:Y6 device with 1% FB-2IDTT-4Cl as additives was 16.9%. Our stability test showed that the PM6:Y6 standard device efficiency downgraded very soon either at room temperature or under thermal-annealing conditions. However, with the addition of 1% FB-2IDTT-4Cl as additives, the device efficiency still can be maintained at 90-95% in 500 h at room temperature and 95% at 20 h and 85-95% in 45 h at an annealing temperature of 80 °C. These findings demonstrate FB-2IDTT-4Cl to be a promising candidate as an electron acceptor with a fluorinated π-bridging fused-ring design for OPV applications.
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Affiliation(s)
- Cheng-Ming Hsieh
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Min-Ru Chuang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Yuto Yamada
- Department of Applied Chemistry, Osaka Institute of Technology, Osaka 535-8585, Japan
| | - Chun-Jen Su
- National Synchrotron Radiation Research Center, Hsinchu Science Park, Hsinchu 30076, Taiwan
| | - Yuan Jay Chang
- Department of Chemistry, Tunghai University, Taichung City 40704, Taiwan
| | - Michihisa Murata
- Department of Applied Chemistry, Osaka Institute of Technology, Osaka 535-8585, Japan
| | - U-Ser Jeng
- National Synchrotron Radiation Research Center, Hsinchu Science Park, Hsinchu 30076, Taiwan
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Shih-Ching Chuang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
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12
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Xie Y, Ryu HS, Han L, Cai Y, Duan X, Wei D, Woo HY, Sun Y. High-efficiency organic solar cells enabled by an alcohol-washable solid additive. Sci China Chem 2021. [DOI: 10.1007/s11426-021-1121-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Hu D, Yang Q, Zheng Y, Tang H, Chung S, Singh R, Lv J, Fu J, Kan Z, Qin B, Chen Q, Liao Z, Chen H, Xiao Z, Sun K, Lu S. 15.3% Efficiency All-Small-Molecule Organic Solar Cells Achieved by a Locally Asymmetric F, Cl Disubstitution Strategy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2004262. [PMID: 33898196 PMCID: PMC8061398 DOI: 10.1002/advs.202004262] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/12/2020] [Indexed: 05/22/2023]
Abstract
Single junction binary all-small-molecule (ASM) organic solar cells (OSCs) with power conversion efficiency (PCE) beyond 14% are achieved by using non-fullerene acceptor Y6 as the electron acceptor, but still lag behind that of polymer OSCs. Herein, an asymmetric Y6-like acceptor, BTP-FCl-FCl, is designed and synthesized to match the recently reported high performance small molecule donor BTR-Cl, and a record efficiency of 15.3% for single-junction binary ASM OSCs is achieved. BTP-FCl-FCl features a F,Cl disubstitution on the same end group affording locally asymmetric structures, and so has a lower total dipole moment, larger average electronic static potential, and lower distribution disorder than those of the globally asymmetric isomer BTP-2F-2Cl, resulting in improved charge generation and extraction. In addition, BTP-FCl-FCl based active layer presents more favorable domain size and finer phase separation contributing to the faster charge extraction, longer charge carrier lifetime, and much lower recombination rate. Therefore, compared with BTP-2F-2Cl, BTP-FCl-FCl based devices provide better performance with FF enhanced from 71.41% to 75.36% and J sc increased from 22.35 to 24.58 mA cm-2, leading to a higher PCE of 15.3%. The locally asymmetric F, Cl disubstitution on the same end group is a new strategy to achieve high performance ASM OSCs.
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Affiliation(s)
- Dingqin Hu
- Chongqing Institute of Green and Intelligent TechnologyChongqing SchoolUniversity of Chinese Academy of Sciences (UCAS Chongqing)Chinese Academy of SciencesChongqing400714China
- Key Laboratory of Low‐Grade Energy Utilization Technologies and Systems (Ministry of Education)School of Energy and Power EngineeringChongqing UniversityChongqing400044P. R. China
| | - Qianguang Yang
- Chongqing Institute of Green and Intelligent TechnologyChongqing SchoolUniversity of Chinese Academy of Sciences (UCAS Chongqing)Chinese Academy of SciencesChongqing400714China
- Chongqing SchoolUniversity of Chinese Academy of SciencesChongqing400714China
| | - Yujie Zheng
- Key Laboratory of Low‐Grade Energy Utilization Technologies and Systems (Ministry of Education)School of Energy and Power EngineeringChongqing UniversityChongqing400044P. R. China
| | - Hua Tang
- Chongqing Institute of Green and Intelligent TechnologyChongqing SchoolUniversity of Chinese Academy of Sciences (UCAS Chongqing)Chinese Academy of SciencesChongqing400714China
- Chongqing SchoolUniversity of Chinese Academy of SciencesChongqing400714China
| | - Sein Chung
- Department of Chemical EngineeringPohang University of Science and Technology PohangPohang790‐784South Korea
| | - Ranbir Singh
- Department of Energy and Materials EngineeringDongguk UniversitySeoul100–715Republic of Korea
| | - Jie Lv
- Chongqing Institute of Green and Intelligent TechnologyChongqing SchoolUniversity of Chinese Academy of Sciences (UCAS Chongqing)Chinese Academy of SciencesChongqing400714China
| | - Jiehao Fu
- Chongqing Institute of Green and Intelligent TechnologyChongqing SchoolUniversity of Chinese Academy of Sciences (UCAS Chongqing)Chinese Academy of SciencesChongqing400714China
| | - Zhipeng Kan
- Chongqing Institute of Green and Intelligent TechnologyChongqing SchoolUniversity of Chinese Academy of Sciences (UCAS Chongqing)Chinese Academy of SciencesChongqing400714China
- Chongqing SchoolUniversity of Chinese Academy of SciencesChongqing400714China
| | - Bo Qin
- Key Laboratory of Low‐Grade Energy Utilization Technologies and Systems (Ministry of Education)School of Energy and Power EngineeringChongqing UniversityChongqing400044P. R. China
| | - Qianqian Chen
- Chongqing Institute of Green and Intelligent TechnologyChongqing SchoolUniversity of Chinese Academy of Sciences (UCAS Chongqing)Chinese Academy of SciencesChongqing400714China
- Key Laboratory of Low‐Grade Energy Utilization Technologies and Systems (Ministry of Education)School of Energy and Power EngineeringChongqing UniversityChongqing400044P. R. China
| | - Zhihui Liao
- Chongqing Institute of Green and Intelligent TechnologyChongqing SchoolUniversity of Chinese Academy of Sciences (UCAS Chongqing)Chinese Academy of SciencesChongqing400714China
- Chongqing SchoolUniversity of Chinese Academy of SciencesChongqing400714China
| | - Haiyan Chen
- Chongqing Institute of Green and Intelligent TechnologyChongqing SchoolUniversity of Chinese Academy of Sciences (UCAS Chongqing)Chinese Academy of SciencesChongqing400714China
- Key Laboratory of Low‐Grade Energy Utilization Technologies and Systems (Ministry of Education)School of Energy and Power EngineeringChongqing UniversityChongqing400044P. R. China
| | - Zeyun Xiao
- Chongqing Institute of Green and Intelligent TechnologyChongqing SchoolUniversity of Chinese Academy of Sciences (UCAS Chongqing)Chinese Academy of SciencesChongqing400714China
- Chongqing SchoolUniversity of Chinese Academy of SciencesChongqing400714China
| | - Kuan Sun
- Key Laboratory of Low‐Grade Energy Utilization Technologies and Systems (Ministry of Education)School of Energy and Power EngineeringChongqing UniversityChongqing400044P. R. China
| | - Shirong Lu
- Chongqing Institute of Green and Intelligent TechnologyChongqing SchoolUniversity of Chinese Academy of Sciences (UCAS Chongqing)Chinese Academy of SciencesChongqing400714China
- Chongqing SchoolUniversity of Chinese Academy of SciencesChongqing400714China
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14
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Liu X, Ma R, Wang Y, Du S, Tong J, Shi X, Li J, Bao X, Xia Y, Liu T, Yan H. Significantly Boosting Efficiency of Polymer Solar Cells by Employing a Nontoxic Halogen-Free Additive. ACS APPLIED MATERIALS & INTERFACES 2021; 13:11117-11124. [PMID: 33635064 DOI: 10.1021/acsami.0c22014] [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
Traditional additives like 1,8-diiodooctane and 1-chloronaphthalene were successfully utilized morphology optimization of various polymer solar cells (PSCs) in an active layer, but their toxicity brought by halogen atoms limits their corresponding large-scale manufacturing. Herein, a new nontoxic halogen-free additive named benzyl benzoate (BB) was introduced into the classic PSCs (PTB7-Th:PC71BM), and an optimal power conversion efficiency (PCE) of 9.43% was realized, while there was a poor PCE for additive free devices (4.83%). It was shown that BB additives could inhibit PC71BM's overaggregation, which increased the interface contact area and formed a better penetration path of an active layer. In addition, BB additives could not only boost the distribution of a PTB7-Th donor at the surface, beneficial to suppressing exciton recombination in inverted devices but also boost the crystallinity of a blend layer, which is conducive to exciton dissociation and charge transport. Our work effectively improved a device performance by using a halogen-free additive, which can be referential for industrialization.
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Affiliation(s)
- Xingpeng Liu
- School of Materials Science and Engineering, Gansu Provincial Engineering Research Center for Organic Semiconductor Materials and Application Technology, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Ruijie Ma
- Department of Chemistry, Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, Energy Institute and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Yufei Wang
- School of Materials Science and Engineering, Gansu Provincial Engineering Research Center for Organic Semiconductor Materials and Application Technology, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Sanshan Du
- School of Materials Science and Engineering, Gansu Provincial Engineering Research Center for Organic Semiconductor Materials and Application Technology, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Junfeng Tong
- School of Materials Science and Engineering, Gansu Provincial Engineering Research Center for Organic Semiconductor Materials and Application Technology, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Xiaoyan Shi
- College of Science, Henan University of Technology, Zhengzhou 450001, China
| | - Jianfeng Li
- School of Materials Science and Engineering, Gansu Provincial Engineering Research Center for Organic Semiconductor Materials and Application Technology, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Xichang Bao
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Yangjun Xia
- School of Materials Science and Engineering, Gansu Provincial Engineering Research Center for Organic Semiconductor Materials and Application Technology, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Tao Liu
- Department of Chemistry, Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, Energy Institute and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - He Yan
- Department of Chemistry, Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, Energy Institute and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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15
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Hu D, Fu J, Chen S, Li J, Yang Q, Gao J, Tang H, Kan Z, Duan T, Lu S, Sun K, Xiao Z. Block copolymers as efficient cathode interlayer materials for organic solar cells. Front Chem Sci Eng 2021. [DOI: 10.1007/s11705-020-2010-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Yang K, Chen S, Fu J, Jung S, Ye J, Kan Z, Hu C, Yang C, Xiao Z, Lu S, Sun K. Molecular Lock Induced by Chloroplatinic Acid Doping of PEDOT:PSS for High-Performance Organic Photovoltaics. ACS APPLIED MATERIALS & INTERFACES 2020; 12:30954-30961. [PMID: 32519537 DOI: 10.1021/acsami.0c06759] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In organic photovoltaics (OPVs), the mechanical contact between charge transport layers and photoactive layer can influence the electrical contact that facilitates carrier collection. Unfortunately, the mechanical contact at the interface is rarely discussed in the OPV context. Herein, we report a distinct molecular locking effect that occurs between the donor molecules in the photoactive layer and the hole transport layer (HTL). This is achieved by doping chloroplatinic acid into poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate). The "molecular lock" at the interface leads to denser distribution and more ordered assembling of PM6 donor molecules close to the HTL. Consequently, the trap-assisted recombination in the cell is greatly suppressed, and the carrier lifetime is prolonged by more than 2 times. Together with the elevated charge carrier collection probability, a high fill factor of 77% and a power conversion efficiency of 16.5% are achieved in the PM6:Y6-based OPVs. This study provides a feasible way to boost the device performance by reinforcing the interfacial interaction between the HTL and photoactive layer.
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Affiliation(s)
- Ke Yang
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, P. R. China
- Organic Semiconductor Research Center, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China
| | - Shanshan Chen
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, P. R. China
| | - Jiehao Fu
- Organic Semiconductor Research Center, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China
| | - Sungwoo Jung
- Department of Energy Engineering, School of Energy and Chemical Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Junfeng Ye
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, P. R. China
- Organic Semiconductor Research Center, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China
| | - Zhipeng Kan
- Organic Semiconductor Research Center, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China
| | - Chao Hu
- Organic Semiconductor Research Center, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China
| | - Changduk Yang
- Department of Energy Engineering, School of Energy and Chemical Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Zeyun Xiao
- Organic Semiconductor Research Center, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China
| | - Shirong Lu
- Organic Semiconductor Research Center, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China
| | - Kuan Sun
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, P. R. China
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