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Liu W, Zhang H, Liang S, Wang T, He S, Hu Y, Zhang R, Ning H, Ren J, Bakulin A, Gao F, Yuan J, Zou Y. The Synthesis of a Multiple D-A Conjugated Macrocycle and Its Application in Organic Photovoltaic. Angew Chem Int Ed Engl 2023; 62:e202311645. [PMID: 37819601 DOI: 10.1002/anie.202311645] [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: 08/11/2023] [Revised: 09/20/2023] [Accepted: 10/06/2023] [Indexed: 10/13/2023]
Abstract
As a novel class of materials, D-A conjugated macrocycles hold significant promise for chemical science. However, their potential in photovoltaic remains largely untapped due to the complexity of introducing multiple donor and acceptor moieties into the design and synthesis of cyclic π-conjugated molecules. Here, we report a multiple D-A ring-like conjugated molecule (RCM) via the coupling of dimer molecule DBTP-C3 as a template and thiophenes in high yields. RCM exhibits a narrow optical gap (1.33 eV) and excellent thermal stability, and shows a remarkable photoluminescence yield (ΦPL ) of 11.1 % in solution, much higher than non-cyclic analogues. Organic solar cell (OSC) constructed with RCM as electron acceptor shows efficient charge separation at donor-acceptor band offsets and achieves a power conversion efficiency (PCE) of 14.2 %-approximately fourfold higher than macrocycle-based OSCs reported so far. This is partly due to low non-radiative voltage loss down to 0.20 eV and a high electroluminescence yield (ΦEL ) of 4×10-4 . Our findings emphasize the potential of D-A cyclic conjugated molecules in advancing organic photovoltaic technology.
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Affiliation(s)
- Wei Liu
- College of Chemistry and Chemical Engineering, Central South University, 410083, Changsha, P. R. China
| | - Huotian Zhang
- Department of Physics, Chemistry and Biology, Linköping University, SE-581 83, Linköping, Sweden
| | - Songting Liang
- College of Chemistry and Chemical Engineering, Central South University, 410083, Changsha, P. R. China
| | - Tong Wang
- Department of Chemistry and Centre for Processable Electronics, Imperial College London, W12 0BZ, London, United Kingdom
| | - Siqing He
- College of Chemistry and Chemical Engineering, Central South University, 410083, Changsha, P. R. China
| | - Yunbin Hu
- College of Chemistry and Chemical Engineering, Central South University, 410083, Changsha, P. R. China
| | - Rui Zhang
- Department of Physics, Chemistry and Biology, Linköping University, SE-581 83, Linköping, Sweden
| | - Haoqing Ning
- Department of Chemistry and Centre for Processable Electronics, Imperial College London, W12 0BZ, London, United Kingdom
| | - Jie Ren
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, International Research Center for X Pol-ymers, Department of Polymer Science and Engineering, Zhejiang University, 310027, Hangzhou, P. R. China
| | - Artem Bakulin
- Department of Chemistry and Centre for Processable Electronics, Imperial College London, W12 0BZ, London, United Kingdom
| | - Feng Gao
- Department of Physics, Chemistry and Biology, Linköping University, SE-581 83, Linköping, Sweden
| | - Jun Yuan
- College of Chemistry and Chemical Engineering, Central South University, 410083, Changsha, P. R. China
| | - Yingping Zou
- College of Chemistry and Chemical Engineering, Central South University, 410083, Changsha, P. R. China
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Ren C, Cao L, Wu T. Meniscus-Guided Deposition of Organic Semiconductor Thin Films: Materials, Mechanism, and Application in Organic Field-Effect Transistors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300151. [PMID: 36869409 DOI: 10.1002/smll.202300151] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/13/2023] [Indexed: 06/02/2023]
Abstract
Solution-processable organic semiconductors are one of the promising materials for the next generation of organic electronic products, which call for high-performance materials and mature processing technologies. Among many solution processing methods, meniscus-guided coating (MGC) techniques have the advantages of large-area, low-cost, adjustable film aggregation, and good compatibility with the roll-to-roll process, showing good research results in the preparation of high-performance organic field-effect transistors. In this review, the types of MGC techniques are first listed and the relevant mechanisms (wetting mechanism, fluid mechanism, and deposition mechanism) are introduced. The MGC processes are focused and the effect of the key coating parameters on the thin film morphology and performance with examples is illustrated. Then, the performance of transistors based on small molecule semiconductors and polymer semiconductor thin films prepared by various MGC techniques is summarized. In the third section, various recent thin film morphology control strategies combined with the MGCs are introduced. Finally, the advanced progress of large-area transistor arrays and the challenges for roll-to-roll processes are presented using MGCs. Nowadays, the application of MGCs is still in the exploration stage, its mechanism is still unclear, and the precise control of film deposition still needs experience accumulation.
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Affiliation(s)
- Chunxing Ren
- Laboratory of Optoelectronic and Information Marking Materials, Key Laboratory of Printing and Packaging Material and Technology, Beijing Institute of Graphic Communication, Beijing, 102600, P. R. China
| | - Long Cao
- Laboratory of Optoelectronic and Information Marking Materials, Key Laboratory of Printing and Packaging Material and Technology, Beijing Institute of Graphic Communication, Beijing, 102600, P. R. China
| | - Ti Wu
- Laboratory of Optoelectronic and Information Marking Materials, Key Laboratory of Printing and Packaging Material and Technology, Beijing Institute of Graphic Communication, Beijing, 102600, P. R. China
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Zaborin EA, Borshchev OV, Skorotetskii MS, Gorodov VV, Bakirov AV, Polinskaya MS, Chvalun SN, Ponomarenko SA. Synthesis and Thermal and Phase Behavior of Polysiloxanes with Grafted Dialkyl-Substituted [1]Benzothieno[3,2-b][1]benzothiophene Groups. POLYMER SCIENCE SERIES B 2022. [DOI: 10.1134/s1560090422700427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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