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He Z, Dai T, Ji M, Tang A, Wang H, Zhou E. Fused Benzotriazole A-Unit Constructs a D-π-A Polymer Donor for Efficient Organic Photovoltaics. ACS Macro Lett 2023; 12:1144-1150. [PMID: 37503885 DOI: 10.1021/acsmacrolett.3c00380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Herein, we originally developed a fused ring building block as an acceptor unit, namely, 2,6,10-trihydro-carbazole[3,4-c:5,6-c]bis[1,2,5]-triazole (CTA), through fusing two benzotriazoles (BTA) with a pyrrole ring. A p-type polymer PE93 containing the CTA unit exhibits relatively high molecular energy levels and excellent luminescent properties. The PE93:BTA76-based solar cell obtained a device efficiency of 12.16%, with a VOC of 0.94 V and a low nonradiative recombination loss of 0.18 eV. The results suggest that the CTA unit is an efficient acceptor unit to achieve excellent photovoltaic performance.
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Affiliation(s)
- Zehua He
- Henan Institutes of Advanced Technology, Zhengzhou University, Zhengzhou 450003, China
- National Center for Nanoscience and Technology, Beijing 100190, China
| | - Tingting Dai
- National Center for Nanoscience and Technology, Beijing 100190, China
| | - Mengwei Ji
- Henan Institutes of Advanced Technology, Zhengzhou University, Zhengzhou 450003, China
- National Center for Nanoscience and Technology, Beijing 100190, China
| | - Ailing Tang
- National Center for Nanoscience and Technology, Beijing 100190, China
| | - Helin Wang
- National Center for Nanoscience and Technology, Beijing 100190, China
| | - Erjun Zhou
- Henan Institutes of Advanced Technology, Zhengzhou University, Zhengzhou 450003, China
- National Center for Nanoscience and Technology, Beijing 100190, China
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Bulut U, Öykü Sayın V, Altin Y, Can Cevher Ş, Cirpan A, Celik Bedeloglu A, Soylemez S. A Flexible Carbon Nanofiber and Conjugated Polymer-Based Electrode for Glucose Sensing. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Cui Y, Zhu P, Xia X, Lu X, Liao X, Chen Y. Carbazolebis(thiadiazole)-core based non-fused ring electron acceptors for efficient organic solar cells. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Zhang W, Sun C, Qin S, Shang Z, Li S, Zhu C, Yang G, Meng L, Li Y. A Cost-Effective Alpha-Fluorinated Bithienyl Benzodithiophene Unit for High-Performance Polymer Donor Material. ACS APPLIED MATERIALS & INTERFACES 2021; 13:55403-55411. [PMID: 34756010 DOI: 10.1021/acsami.1c15278] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
To reduce synthetic cost of the classic fluorinated bithienyl benzodithiophene (BDTT-F) unit, here, an alpha-fluorinated bithienyl benzodithiophene unit, namely, α-BDTT-F (F atom in the α position of the lateral thiophene unit), is developed by the isomerization strategy of exchanging the positions of the F atom and flexible alkyl chain on the lateral thiophene unit of the BDTT-F unit. The α-BDTT-F unit was synthesized with less synthetic steps, higher synthetic yield, and less purification times from the same raw materials as those of the BDTT-F unit, thus with low synthetic cost. Theoretical calculation indicates that the α-BDTT-F unit possesses a similar twisted conformation and electronic structures as those of the BDTT-F unit. The α-BDTT-F-based polymer α-PBQ10 exhibits similar light absorption and energy levels as those of the corresponding BDTT-F-based polymer PBQ10 but marginally increased molecular aggregation and stronger hole transport than PBQ10. In consequence, the α-PBQ10:Y6-based polymer solar cell demonstrates a slightly enhanced power conversion efficiency (PCE) of 16.26% compared with that of the PBQ10:Y6-based device (PCE = 16.23%). Also, the PCE is further improved to 16.77% through subtle microscopic morphology regulation of the photoactive layer with the fullerene derivative indene-C60 bisadduct as the third component. This work provides new ideas for the design of low-cost and high-efficiency photovoltaic molecules.
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Affiliation(s)
- Wenqing Zhang
- College of Chemistry, and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, China
| | - Chenkai Sun
- College of Chemistry, and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, China
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Shucheng Qin
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ziya Shang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shaman Li
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Can Zhu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guang Yang
- College of Chemistry, and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, China
| | - Lei Meng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongfang Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing 100049, China
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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