1
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Shen X, Xiong S, Lai H, Wang Y, Li H, Deng Z, He F. Chlorinated Oligomers with Regulate Planarity Achieving Superior Photovoltaic Performance. ACS APPLIED MATERIALS & INTERFACES 2024; 16:27463-27469. [PMID: 38743927 DOI: 10.1021/acsami.4c04476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Chlorine substitution, as an effective and low-cost modification strategy, has been applied in the design of donor and acceptor structures in organic solar cells. We synthesized a series of chlorinated dimerized acceptors to investigate the effect of chlorine numbers and locations on the photovoltaic properties. The results show that the planarity and morphology of DYV-γ-2Cl are greatly improved due to the appropriate numbers and positions of the substituted chlorine atoms. Therefore, the device based on PM6:DYV-γ-2Cl achieves a superior power conversion efficiency (PCE) of 15.54% among the three oligomeric acceptors with optimized molecular planarity and film morphology. This work demonstrated the positive effect of suitable numbers and the substitution positions of chlorines on the molecular arrangement and photovoltaic properties of the corresponding dimerized acceptors.
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Affiliation(s)
- Xiangyu Shen
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Shilong Xiong
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hanjian Lai
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yunpeng Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Heng Li
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zihao Deng
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Feng He
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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2
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Wang K, Gao J, Wang H, Guo Q, Zhang J, Guo X, Zhang M. Enhanced Fill Factor and Efficiency of Ternary Organic Solar Cells by a New Asymmetric Non-Fullerene Small Molecule Acceptor. CHEMSUSCHEM 2024:e202400691. [PMID: 38805339 DOI: 10.1002/cssc.202400691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 05/30/2024]
Abstract
Asymmetric non-fullerene small molecules acceptor (as-NF-SMAs) exhibit greater vitality in photovoltaic materials compared to their symmetric counterparts due to their larger dipole moments and stronger intermolecular interactions, which facilitate exciton dissociation and charge transmission in organic solar cells (OSCs). Here, we introduced a new as-NF-SMAs, named IDT-TNIC, as the third component in ternary organic solar cells (TOSCs). The asymmetric IDT-TNIC used indacenodithiophene (IDT) as the central core, alkylthio-thiophene as a unilateral π-bridge and extended end groups as electron-withdrawing. Due to the non-covalent conformational lock (NCL) established between O⋅⋅⋅S and S⋅⋅⋅S, the IDT-TNIC molecule preserves its coplanar structure effectively. Furthermore, IDT-TNIC exhibits complementary absorption and excellent compatibility with donor and acceptor materials, as well as optimized ladder energy level arrangement, resulting in a higher and more balanced μh/μe value, more homogeneous and suitable phase separation morphology in TOSCs. Thus, the PCE of the TOSCs reached 17 % when the weight ratio of PM6 : Y6 : IDT-TNIC was 1 : 1.1 : 0.1, and it is noteworthy that when the device area was increased to 1 cm2, the PCE could still be maintained at over 14 %. Detailed studies and analysis indicate that IDT-TNIC has great potential as a third component in OSCs and for large-scale printing in the future.
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Affiliation(s)
- Kun Wang
- School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou, 451191, China
| | - Jingshun Gao
- School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou, 451191, China
| | - Huiyan Wang
- School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou, 451191, China
| | - Qing Guo
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450003, 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
| | - Xia Guo
- National Engineering Research Center for Colloidal Materials, School of Chemistry & Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Maojie Zhang
- National Engineering Research Center for Colloidal Materials, School of Chemistry & Chemical Engineering, Shandong University, Jinan, 250100, China
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3
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Xia J, Quan H, Huang Y, Zhang Z, Zhang Y, Lu B. Side Chain Programming Synchronously Enhances the Photothermal Conversion Efficiency and Photodynamic Activity of A-D-A Photosensitizers. ACS Macro Lett 2024; 13:489-494. [PMID: 38607650 DOI: 10.1021/acsmacrolett.4c00031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Synchronously improving the photothermal conversion efficiency and photodynamic activity of organic small molecule photosensitizers is crucial for their further wide application in cancer treatment. Recently, the emerging A-D-A photosensitizer-based phototherapy systems have attracted great interest due to their plentiful inherent merits. Herein, we propose a design strategy for A-D-A photosensitizers with synchronously enhanced photothermal conversion and reactive oxygen species (ROS) generation efficiencies. Side chain programming is carried out to design three A-D-A photosensitizers (IDT-H, IDT-Br, IDT-I) containing hexyl, bromohexyl, and iodohexyl side chains, respectively. Theoretical calculations confirm that a bulky iodine atom could weaken the intermolecular π-π stacking and enhance spin-orbit coupling constants of IDT-I. These molecular mechanisms enable IDT-I nanoparticles (NPs) to exhibit 2.4-fold and 1.7-fold higher ROS generation efficiency than that of IDT-H NPs and IDT-Br NPs, respectively, as well as the highest photothermal conversion efficiency. Both the experimental results in vitro and in vivo verify that IDT-I NPs are perfectly qualified for the mission of photothermal and photodynamic synergistic therapy. Therefore, in this contribution, we provide a promising perspective for the design of A-D-A photosensitizers with simultaneously improved photothermal and photodynamic therapy ability.
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Affiliation(s)
- Jiachen Xia
- College of Chemistry and Chemical Engineering, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu 226019, P. R. China
| | - Hui Quan
- College of Chemistry and Chemical Engineering, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu 226019, P. R. China
| | - Yuying Huang
- College of Chemistry and Chemical Engineering, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu 226019, P. R. China
| | - Zhecheng Zhang
- College of Chemistry and Chemical Engineering, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu 226019, P. R. China
| | - Yuehua Zhang
- College of Chemistry and Chemical Engineering, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu 226019, P. R. China
| | - Bing Lu
- College of Chemistry and Chemical Engineering, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu 226019, P. R. China
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4
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Lu B, Xia J, Quan H, Huang Y, Zhang Z, Zhan X. End Group Engineering for Constructing A-D-A Fused-Ring Photosensitizers with Balanced Phototheranostics Performance. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307664. [PMID: 37972254 DOI: 10.1002/smll.202307664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/31/2023] [Indexed: 11/19/2023]
Abstract
Phototheranostics continues to flourish in cancer treatment. Due to the competitive relationships between these photophysical processes of fluorescence emission, photothermal conversion, and photodynamic action, it is critical to balance them through subtle photosensitizer designs. Herein, it is provided a useful guideline for constructing A-D-A photosensitizers with superior phototheranostics performance. Various cyanoacetate group-modified end groups containing ester side chains of different length are designed to construct a series of A-D-A photosensitizers (F8CA1 ∼ F8CA4) to study the structure-property relationships. It is surprising to find that the photophysical properties of A-D-A photosensitizers can be precisely regulated by these tiny structural changes. The results reveal that the increase in the steric hindrance of ester side chains has positive impacts on their photothermal conversion capabilities, but adverse impacts on the fluorescence emission and photodynamic activities. Notably, these tiny structural changes lead to their different aggregation behavior. The molecule mechanisms are detailedly explained by theoretical calculations. Finally, F8CA2 nanoparticles with more balanced photophysical properties perform well in fluorescence imaging-guided photothermal and type I&II photodynamic synergistic cancer therapy, even under hypoxic conditions. Therefore, this work provides a novel practicable construction strategy for desired A-D-A photosensitizers.
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Affiliation(s)
- Bing Lu
- College of Chemistry and Chemical Engineering, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, 226019, P. R. China
| | - Jiachen Xia
- College of Chemistry and Chemical Engineering, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, 226019, P. R. China
| | - Hui Quan
- College of Chemistry and Chemical Engineering, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, 226019, P. R. China
| | - Yuying Huang
- College of Chemistry and Chemical Engineering, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, 226019, P. R. China
| | - Zhecheng Zhang
- College of Chemistry and Chemical Engineering, Nantong University, No.9 Seyuan Road, Chongchuan District, Nantong, Jiangsu, 226019, P. R. China
| | - Xiaowei Zhan
- School of Materials Science and Engineering, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing, 100871, P. R. China
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Wan F, Wang H, Gu Y, Fan G, Hou S, Yu J, Wang M, He F, Tian L. Bromine Substitution Improves the Photothermal Performance of π-Conjugated Phototheranostic Molecules. Chemistry 2024; 30:e202303502. [PMID: 37915302 DOI: 10.1002/chem.202303502] [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: 10/24/2023] [Revised: 11/01/2023] [Accepted: 11/02/2023] [Indexed: 11/03/2023]
Abstract
NIR-II fluorescence imaging-guided photothermal therapy (PTT) has been widely investigated due to its great application potential in tumor theranostics. PTT is an effective and non-invasive tumor treatment method that can adapt to tumor hypoxia; nevertheless, simple and effective strategies are still desired to develop new materials with excellent PTT properties to meet clinical requirements. In this work, we developed a bromine-substitution strategy to enhance the PTT of A-D-A'-D-A π-conjugated molecules. The experimental results reveal that bromine substitution can notably enhance the absorptivity (ϵ) and photothermal conversion efficiency (PCE) of the π-conjugated molecules, resulting in the brominated molecules generating two times more heat (ϵ808 nm ×PCE) than their unsubstituted counterpart. We disclose that the enhanced photothermal properties of bromine-substituted π-conjugated molecules are a combined outcome of the heavy-atom effect, enhanced ICT effect, and more intense bromine-mediate intermolecular π-π stacking. Finally, the NIR-II tumor imaging capability and efficient PTT tumor ablation of the brominated π-conjugated materials demonstrate that bromine substitution is a promising strategy for developing future high-performance NIR-II imaging-guided PTT agents.
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Affiliation(s)
- Feiyan Wan
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Huan Wang
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis and, Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Ying Gu
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis and, Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Guilin Fan
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Shengxin Hou
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Jiantao Yu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Mengying Wang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Feng He
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis and, Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Leilei Tian
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
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Wang CH, Busireddy MR, Huang SC, Nie H, Liu YS, Lai BY, Meng LH, Chuang WT, Scharber MC, Chen JT, Hsu CS. Phenoxy Group-Containing Asymmetric Non-Fullerene Acceptors Achieved Higher VOC over 1.0 V through Alkoxy Side-Chain Engineering for Organic Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2023; 15:58683-58692. [PMID: 38073043 DOI: 10.1021/acsami.3c13833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
Alkoxy side chain engineering on the β-position of the thienothiophene units of Y6 derivatives plays a vital role in improving photovoltaic performances with simultaneously increasing open-circuit voltage (Voc) and fill factor (FF). In this work, we prepared a series of asymmetric non-fullerene acceptors (NFAs) by introducing alkoxy side chains and phenoxy groups on the state-of-the-art Y6-derivative BTP-BO-4F. For the comparison, 2O-BO-4F with a symmetric alkoxy side chain on the outer thiophene units and BTP-PBO-4F with an asymmetric N-attached phenoxy alkyl chain on the pyrrole ring are synthesized from BTP-BO-4F. Thereafter, we construct four asymmetric NFAs by introducing different lengths of linear/branched alkoxy chains on the β-position of the thienothiophene units of BTP-PBO-4F. The resulting NFAs, named L10-PBO, L12-PBO, B12-PBO, and B16-PBO (L = linear and B = branched alkoxy side chains), are collectively called OR-PBO-series. Unexpectedly, all OR-PBO NFAs exhibit strong edge-on molecular packing and weaker π-π interactions in the film state, which diminish the charge transfer in organic solar cell (OSC) devices. As a consequence, the optimal devices of OR-PBO-based binary blends show poor photovoltaic performances [power conversion efficiency (PCE) = 6.52-9.62%] in comparison with 2O-BO-4F (PCE = 12.42%) and BTP-PBO-4F (PCE = 15.30%) reference blends. Nevertheless, the OR-PBO-based binary devices show a higher Voc and smaller Vloss. Especially, B12-PBO- and B16-PBO-based devices achieve Voc over 1.00 V, which is the highest value of Y-series OSC devices to the best of our knowledge. Therefore, by utilizing higher Voc of OR-PBO binary blends, B12-PBO and B16-PBO are incorporated into the PM6:BTP-PBO-4F-based binary blend and fabricated ternary devices. As a result, the PM6:BTP-PBO-4F:B12-PBO ternary device delivers the best PCE of 15.60% with an increasing Voc and FF concurrently.
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Affiliation(s)
- Chuan-Hsin Wang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
| | - Manohar Reddy Busireddy
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
| | - Sheng-Ci Huang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
| | - Hebing Nie
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
| | - Yu-Shuo Liu
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
| | - Bing-Yong Lai
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
| | - Ling-Huan Meng
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
| | - Wei-Tsung Chuang
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu 30073, Taiwan
| | - Markus C Scharber
- Linz Institute of Organic Solar Cells (LIOS), Institute of Physical Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, Linz 4040, Austria
| | - Jiun-Tai Chen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
| | - Chain-Shu Hsu
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rood, Hsinchu 300093, Taiwan
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Lan A, Zhu J, Zhang Z, Lv Y, Lu H, Zhao N, Do H, Chen ZK, Chen F. Asymmetric Non-Fullerene Acceptor Derivatives Incorporated Ternary Organic Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2023; 15:39657-39668. [PMID: 37578345 DOI: 10.1021/acsami.3c06981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Incorporating ITIC derivatives as guest acceptors into binary host systems is an effective strategy for constructing high-performance ternary organic solar cells (TOSCs). In this work, we introduced A-D-A type ITIC derivatives PTBTT-4F (asymmetric) and PTBTP-4F (symmetric) into the PM6:BTP-BO-4F (Y6-BO) binary blend and investigated the impacts of two guest acceptors on the performance of TOSCs. Differentiated device performance was observed, although PTBTT-4F and PTBTP-4F presented similar chemical structures and comparable absorptions. The PTBTT-4F ternary devices exhibited an improved power conversion efficiency (PCE) of 17.67% with increased open circuit (VOC) and current density (JSC), whereas the PTBTP-4F-based ternary devices yielded a relatively lower PCE of 16.34%. PTBTT-4F showed much better compatibility with the host acceptor BTP-BO-4F, so that they formed a well-mixed alloy phase state; more precise phase separation and increased crystallinity were thus induced in the ternary blends, leading to reduced molecular recombination and improved charge mobilities, which contributed to improved fill factors of the ternary devices. In addition, the optimized PTBTT-4F devices exhibited good performance tolerance of the photoactive layer thickness, as they even delivered a PCE of 15.25% when the active layer was as thick as up to ∼300 nm.
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Affiliation(s)
- Ai Lan
- Department of Chemical and Environmental Engineering, The University of Nottingham Ningbo China, Ningbo 315100, China
- New Materials Institute, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Jintao Zhu
- Department of Chemical and Environmental Engineering, The University of Nottingham Ningbo China, Ningbo 315100, China
- New Materials Institute, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Zhuohan Zhang
- Department of Chemical and Environmental Engineering, The University of Nottingham Ningbo China, Ningbo 315100, China
- New Materials Institute, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Yifan Lv
- Department of Chemical and Environmental Engineering, The University of Nottingham Ningbo China, Ningbo 315100, China
- New Materials Institute, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Hong Lu
- Department of Chemical and Environmental Engineering, The University of Nottingham Ningbo China, Ningbo 315100, China
| | - Ningxin Zhao
- Department of Chemical and Environmental Engineering, The University of Nottingham Ningbo China, Ningbo 315100, China
| | - Hainam Do
- Department of Chemical and Environmental Engineering, The University of Nottingham Ningbo China, Ningbo 315100, China
- New Materials Institute, University of Nottingham Ningbo China, Ningbo 315100, China
- Key Laboratory of Carbonaceous Waste Processing and Process Intensification Research of Zhejiang Province, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Zhi-Kuan Chen
- Key Laboratory of Flexible Electronics of Zhejiang Province, Ningbo Institute of Northwestern Polytechnical University, Ningbo 315100, China
| | - Fei Chen
- Key Laboratory of Flexible Electronics of Zhejiang Province, Ningbo Institute of Northwestern Polytechnical University, Ningbo 315100, China
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Meng F, Qin Y, Zheng Y, Zhao Z, Sun Y, Yang Y, Gao K, Zhao D. Structural Fusion Yields Guest Acceptors that Enable Ternary Organic Solar Cells with 18.77 % Efficiency. Angew Chem Int Ed Engl 2023; 62:e202217173. [PMID: 36692893 DOI: 10.1002/anie.202217173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 01/25/2023]
Abstract
The design and selection of a suitable guest acceptor are particularly important for improving the photovoltaic performance of ternary organic solar cells (OSCs). Herein, we designed and successfully synthesized two asymmetric silicon-oxygen bridged guest acceptors, which featured distinct blue-shifted absorption, upshifted lowest unoccupied molecular orbital energy levels, and larger dipole moments than symmetric silicon-oxygen-bridged acceptor. Ternary devices with the incorporation of 14.2 wt % these two asymmetric guest acceptors exhibited excellent performance with power conversion efficiencies (PCEs) of 18.22 % and 18.77 %, respectively. Our success in precise control of material properties via structural fusion of five-membered carbon linkages and six-membered silicon-oxygen connection at the central electron-donating core unit of fused-ring electron acceptors can attract considerable attention and bring new vigor and vitality for developing new materials toward more efficient OSCs.
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Affiliation(s)
- Fei Meng
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, 300071, Tianjin, China
| | - Ying Qin
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, 300071, Tianjin, China
| | - Yiting Zheng
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, 300071, Tianjin, China
| | - Zhihan Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, 300071, Tianjin, China
| | - Yanna Sun
- Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion, Science Center for Material Creation and Energy Conversion, Institute of Frontier and Interdisciplinary Science, Shandong University, 266237, Qingdao, P. R. China
| | - Yingguo Yang
- School of Microelectronics, Fudan University, 200433, Shanghai, China
| | - Ke Gao
- Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion, Science Center for Material Creation and Energy Conversion, Institute of Frontier and Interdisciplinary Science, Shandong University, 266237, Qingdao, P. R. China
| | - Dongbing Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, 300071, Tianjin, China
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Agneeswari R, Ahn Y, Tamilavan V, Shin I, Shin C, Park SH, Jin Y. Dialkyl‐fluoroquinoxaline–based polymeric donor for binary and ternary organic solar cell applications. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Rajalingam Agneeswari
- Department of Industrial Chemistry Pukyong National University Busan Republic of Korea
| | - Yoomi Ahn
- Department of Physics Pukyong National University Busan Republic of Korea
| | | | - Insoo Shin
- Department of Physics Pukyong National University Busan Republic of Korea
| | - Chnan‐gi Shin
- Department of Industrial Chemistry Pukyong National University Busan Republic of Korea
| | - Sung Heum Park
- Department of Physics Pukyong National University Busan Republic of Korea
| | - Youngeup Jin
- Department of Industrial Chemistry Pukyong National University Busan Republic of Korea
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10
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Busireddy MR, Chen TW, Huang SC, Su YJ, Wang YM, Chuang WT, Chen JT, Hsu CS. PBDB-T-Based Binary-OSCs Achieving over 15.83% Efficiency via End-Group Functionalization and Alkyl-Chain Engineering of Quinoxaline-Containing Non-Fullerene Acceptors. ACS APPLIED MATERIALS & INTERFACES 2022; 14:41264-41274. [PMID: 36041037 DOI: 10.1021/acsami.2c09614] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Molecular backbone modification, alkyl-chain engineering, and end-group functionalization are promising strategies for developing efficient high-performance non-fullerene acceptors (NFAs). Herein, two new NFAs, named TPQ-eC7-4F and TPQ-eC7-4Cl, are designed and synthesized. Both molecules have linear octyl chains on fused quinoxaline-containing heterocyclics as the central backbone and difluorinated (2F)/dichlorinated (2Cl) 1,1-dicyanomethylene-3-indanone (IC) as the end-group units. The influences of alkyl-chains on fused quinoxaline backbone and different halogenated end-groups on optical, electrochemical, and photovoltaic performances of organic solar cells (OSCs) are studied. In comparison with TPQ-eC7-4Cl, TPQ-eC7-4F exhibits blue-shifted absorptions with higher molar extinction coefficients in the film state as well as in the donor/acceptor (D/A) blend film state and up-shifting lowest unoccupied molecular orbital (LUMO) energy level. As a result, the OSC devices based on the PBDB-T:TPQ-eC7-4F display an outstanding power conversion efficiency (PCE) of 15.83% with a simultaneously increased open-circuit voltage (Voc) of 0.85 V, a short-circuit current-density (Jsc) of 25.89 mA cm-2, and a fill factor (FF) of 72.20%, whereas the PBDB-T:TPQ-eC7-4Cl-based OSC device shows a decent PCE of 14.48% with a Voc of 0.84 V, a Jsc of 24.56 mA/cm2, and an FF of 69.77%. To the best of our knowledge, this is the highest photovoltaic performance of PBDB-T-based single-junction binary-OSCs. In comparison, ascribed to the high crystallinity and low solubility of BTP-eC7-4Cl, the corresponding PBDB-T:BTP-eC7-4Cl-based OSC device shows poor photovoltaic performance (PCE of 11.87%). The experimental results demonstrate that fine-tuning the fused quinoxaline backbone with alkyl-chain and end-group functionalization are promising strategies to construct high-performance NFAs for PBDB-T-based single-junction binary-OSCs.
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Affiliation(s)
- Manohar Reddy Busireddy
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
| | - Tsung-Wei Chen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
| | - Sheng-Ci Huang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
| | - Yi-Jia Su
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
| | - Yu-Min Wang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
| | - Wei-Tsung Chuang
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu 30010, Taiwan
| | - Jiun-Tai Chen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
| | - Chain-Shu Hsu
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
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Busireddy MR, Chen TW, Huang SC, Nie H, Su YJ, Chuang CT, Kuo PJ, Chen JT, Hsu CS. Fine Tuning Alkyl Substituents on Dithienoquinoxaline-Based Wide-Bandgap Polymer Donors for Organic Photovoltaics. ACS APPLIED MATERIALS & INTERFACES 2022; 14:22353-22362. [PMID: 35511580 DOI: 10.1021/acsami.2c04104] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The molecular design of wide-bandgap conjugated polymer donors (WB-CPDs) is a promising strategy for tuning the bulk heterojunction blend film morphologies to achieve high-performance organic photovoltaic (OPV) devices. Herein, we synthesize two WB-CPDs, namely, PBQ-H and PBQ-M, with and without methyl groups on the fused-dithieno[3,2-f:2',3'-h]quinoxaline (DTQx) moiety. We systematically investigate their structure-property relationship and OPV performances. The AFM and 2D grazing-incidence wide-angle X-ray scattering (GIWAXS) studies reveal that the PBQ-H:BO-4Cl BHJ blend shows strengthened aggregation behavior and stronger π-π stacking on face-on orientation compared with the PBQ-M:BO-4Cl BHJ blend, enhancing the phase separation, charge transport, and fill factor (FF). Blend film absorption spectra, however, show that the PBQ-H:BO-4Cl BHJ blend exhibits a lower absorption coefficient than that of the PBQ-M:BO-4Cl BHJ blend, which decreases the short-circuit current density (JSC). As a consequence, the optimized PBQ-H:BO-4Cl BHJ blend delivers a higher power conversion efficiency (PCE) of 12.88% with a JSC of 23.97 mA/cm2, an open-circuit voltage (VOC) of 0.86 V, and an FF of 62.46%, compared with the PBQ-M:BO-4Cl BHJ blend (PCE of 11.81% with a JSC of 24.78 mA/cm2, a VOC of 0.85 V, and an FF of 56.11%). Overall, this work demonstrates that alkyl group substitution on the DTQx moiety on the basis of WB-CPDs is critical for controlling the film morphology and thus obtaining high OPV performances.
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Affiliation(s)
- Manohar Reddy Busireddy
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
| | - Tsung-Wei Chen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
| | - Sheng-Ci Huang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
| | - Hebing Nie
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
| | - Yi-Jia Su
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
| | - Chih-Ting Chuang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
| | - Pei-Jung Kuo
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
| | - Jiun-Tai Chen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
| | - Chain-Shu Hsu
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, 1001 University Rd., Hsinchu 30010, Taiwan
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Lai H, Chen H, Zhu Y, Wang H, Li Y, He F. Aggregation of Small Molecule and Polymer Acceptors with 2D-Fused Backbones in Organic Solar Cells. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hanjian Lai
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Hui Chen
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yulin Zhu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Hengtao Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yan Li
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Feng He
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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13
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Kini GP, Han YW, Jeon SJ, Lee EJ, Lee YJ, Goh M, Moon DK. Tailoring microstructure and morphology via sequential fluorination to enhance the photovoltaic performance of low-cost polymer donors for organic solar cells. Macromol Rapid Commun 2022; 43:e2200070. [PMID: 35298093 DOI: 10.1002/marc.202200070] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/21/2022] [Indexed: 11/08/2022]
Abstract
For utilizing the organic solar cells for commercial applications, reducing the overall cost of the photo absorbent materials is also very crucial, along with the realization of high power conversion efficiency (PCE) and excellent stability. Herein, we tried to address such challenge by synergistically controlling the amount of fluorine (F)-substituents (n = 2, 4) on easily scalable, low-cost wide-bandgap molecular design involving alternate fluorinated-thienyl benzodithiophene donor and 2,5-difluoro benzene (2FBn) or 2,3,5,6 tetrafluorobenzene (4FBn) to form two new polymer donors PBDT-2FBn and PBDT-4FBn, respectively. As expected, sequential fluorination causes lowering of the frontier energy levels and planarization of polymer backbone via F···S and C-H···F noncovalent molecular locks, which results in more pronounced molecular packing and enhanced crystallinity from PBDT-2FBn to PBDT-4FBn. By mixing with IT-4F acceptor, PBDT-2FBn:IT-4F-based blend demonstrated favorable molecular orientation with shorter π-π stacking distance, higher carrier mobilities with good trade-off ratio and desirable nanoscale morphology, hence delivered good PCE of 9.3% than PBDT-2FBn:IT-4F counterpart (8.6%). Furthermore, pairing PBDT-2FBn with BTP-BO-4Cl acceptor further improved absorption range and promoted privileged morphology with ideal domain sizes for efficient exciton dissociation and charge transport, resulting in further improvement of PCE to 10.2% with remarkably low energy loss of 0.46 eV, which is seldomly reported in NF-OSCs. Consequently, this study provides valuable guidelines for designing efficient and low-cost polymer donors for organic solar cell applications. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Gururaj P Kini
- Nano and Information Materials (NIMs) Laboratory, Department of Chemical Engineering, Konkuk University, 120, Neungdong-ro, Gwangjin-gu, Seoul, 05029, Korea
| | - Yong Woon Han
- Nano and Information Materials (NIMs) Laboratory, Department of Chemical Engineering, Konkuk University, 120, Neungdong-ro, Gwangjin-gu, Seoul, 05029, Korea
| | - Sung Jae Jeon
- Nano and Information Materials (NIMs) Laboratory, Department of Chemical Engineering, Konkuk University, 120, Neungdong-ro, Gwangjin-gu, Seoul, 05029, Korea
| | - Eui Jin Lee
- Nano and Information Materials (NIMs) Laboratory, Department of Chemical Engineering, Konkuk University, 120, Neungdong-ro, Gwangjin-gu, Seoul, 05029, Korea
| | - Yoon Jae Lee
- Nano and Information Materials (NIMs) Laboratory, Department of Chemical Engineering, Konkuk University, 120, Neungdong-ro, Gwangjin-gu, Seoul, 05029, Korea
| | - Munju Goh
- Department of Chemical Engineering, Konkuk University, 120, Neungdong-ro, Gwangjin-gu, Seoul, 05029, Korea
| | - Doo Kyung Moon
- Nano and Information Materials (NIMs) Laboratory, Department of Chemical Engineering, Konkuk University, 120, Neungdong-ro, Gwangjin-gu, Seoul, 05029, Korea
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14
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Lu B, Zhang Z, Jin D, Yuan X, Wang J, Ding Y, Wang Y, Yao Y. A-DA'D-A fused-ring small molecule-based nanoparticles for combined photothermal and photodynamic therapy of cancer. Chem Commun (Camb) 2021; 57:12020-12023. [PMID: 34713878 DOI: 10.1039/d1cc04629b] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
New nanoparticles (Y6 NPs) based on the A-DA'D-A fused-ring conjugated small molecule Y6 have been prepared for the combined photothermal and photodynamic therapy of cancer. Y6 NPs show excellent light absorption from 300 to 900 nm, a good photothermal conversion efficiency of 57% and reactive oxygen species generation capability. The high photothermal conversion ability and superior photodynamic activity of Y6 NPs endow them with great potential for cancer therapy.
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Affiliation(s)
- Bing Lu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
| | - Zhecheng Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
| | - Danni Jin
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
| | - Xiaolei Yuan
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
| | - Jin Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
| | - Yue Ding
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
| | - Yang Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
| | - Yong Yao
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
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