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3
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Liu Y, Zhu S, Li W, Su Y, Zhou H, Chen R, Chen W, Zhang W, Niu X, Chen X, An Z. An optimal molecule-matching co-sensitization system for the improvement of photovoltaic performances of DSSCs. Phys Chem Chem Phys 2022; 24:22580-22588. [PMID: 36102796 DOI: 10.1039/d2cp02796h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three biphenyl co-sensitizers (4OBA, 8OBA and 12OBA) with different terminal oxyalkyl chains were synthesized and co-sensitized respectively with the main dye (NP-1) in co-sensitized solar cells (co-DSSCs). The effects of the terminal oxyalkyl chains on the photophysical, electrochemical and photovoltaic properties of the co-DSSCs were systematically investigated. The optimal molecular matching relationship between the co-sensitizers and the main dye was obtained through density functional theory (DFT) calculations. Consequently, 4OBA has the most appropriate three-dimensional (3D) molecular structure, which could not only fill the gap between the large-size dyes but also plays a partial shielding role, inhibiting dye aggregation and electron recombination, therefore yielding the highest power conversion efficiency (PCE) for the co-DSSCs with NP-1@4OBA. This study suggests that adjusting the terminal oxyalkyl chains of the co-sensitizers can be used to enhance the intramolecular charge transfer efficiency and inhibit electron recombination, ultimately improving the photovoltaic performances of the co-DSSCs.
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Affiliation(s)
- Yongliang Liu
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China.,School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China.
| | - Shengbo Zhu
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China.,School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China.
| | - Wei Li
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China.,School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China.
| | - Yilin Su
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China.,School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China.
| | - Hongwei Zhou
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China.,School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China.
| | - Ran Chen
- Key Laboratory of Applied Surface and Colloid Chemistry (MOE), Xi'an 710119, P. R. China.,International Joint Research Center of Shaanxi Province for Photoelectric Materials Science, Shaanxi Key Laboratory for Advanced Energy Devices, Xi'an 710119, P. R. China.,Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Weixing Chen
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China.,School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China.
| | - Wenzhi Zhang
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China.,School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China.
| | - Xiaoling Niu
- Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China.,School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China.
| | - Xinbing Chen
- Key Laboratory of Applied Surface and Colloid Chemistry (MOE), Xi'an 710119, P. R. China.,International Joint Research Center of Shaanxi Province for Photoelectric Materials Science, Shaanxi Key Laboratory for Advanced Energy Devices, Xi'an 710119, P. R. China.,Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
| | - Zhongwei An
- Key Laboratory of Applied Surface and Colloid Chemistry (MOE), Xi'an 710119, P. R. China.,International Joint Research Center of Shaanxi Province for Photoelectric Materials Science, Shaanxi Key Laboratory for Advanced Energy Devices, Xi'an 710119, P. R. China.,Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China
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4
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Mahmoud SE, Fadda AA, Abdel-Latif E, Elmorsy MR. Synthesis of Novel Triphenylamine-Based Organic Dyes with Dual Anchors for Efficient Dye-Sensitized Solar Cells. NANOSCALE RESEARCH LETTERS 2022; 17:71. [PMID: 35927533 PMCID: PMC9352838 DOI: 10.1186/s11671-022-03711-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 07/31/2022] [Indexed: 06/15/2023]
Abstract
A new series of metal-free organic dyes (SM1-5) with dual anchors are synthesized for application in dye-sensitized solar cells (DSSC). Here, a simple triphenylamine (TPA) moiety serves as the electron donor, while di-cyanoacrylamide and di-thiazolidine-5-one units serve as the electron acceptors and anchoring groups. To understand the effect of dye structure on the photovoltaic characteristics of DSSCs, the photophysical and electrochemical properties, as well as molecular geometries calculated from density functional theory (DFT), are used for dyes SM1-5. The extinction coefficients of the organic dyes SM1-5 are high (5.36-9.54 104 M-1 cm-1), indicating a high aptitude for light harvesting. The photovoltaic studies indicated that using dye SM4 as a sensitizer showed a power conversion efficiency (PCE) of 6.09% (JSC = 14.13 mA cm-2, VOC = 0.624 V, FF = 68.89%). Interestingly, SM4 showed the highest values of VOC among all dyes, including N-719, due to its maximum dye coverage on the TiO2 surface, enhancing charge recombination resistance in the sensitized cell. The good agreement between the theoretically and experimentally obtained data indicates that the energy functional and basis set employed in this study can be successfully utilized to predict new photosensitizers' absorption spectra with great precision before synthesis. Also, these results show that bi-anchoring molecules have a lot of potentials to improve the overall performance of dye-sensitized solar cells.
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Affiliation(s)
- Samar E Mahmoud
- Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura, 35516, Egypt
| | - Ahmed A Fadda
- Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura, 35516, Egypt
| | - Ehab Abdel-Latif
- Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura, 35516, Egypt
| | - Mohamed R Elmorsy
- Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura, 35516, Egypt.
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6
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Meng T, Lu Y, Lei P, Li S, Deng K, Xiao X, Ogino K, Zeng Q. Self-Assembly of Triphenylamine Macrocycles and Co-assembly with Guest Molecules at the Liquid-Solid Interface Studied by STM: Influence of Different Side Chains on Host-Guest Interaction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:3568-3574. [PMID: 35276043 DOI: 10.1021/acs.langmuir.2c00188] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The side chains of macrocyclic molecules have a non-negligible effect on the two-dimensional (2D) supramolecular networks at the liquid-solid interface. In this study, we investigate the self-assembly behaviors of two conjugated triphenylamine macrocycles modified with different alkyl chains and construct the host-guest supramolecular nanopatterns on the highly oriented pyrolytic graphite with a scanning tunneling microscope. In combination with density functional theory calculations, how different side chains affect the host-guest interaction is discussed. This work provides insights into constructing a 2D host-guest dynamic co-assembly on the surface.
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Affiliation(s)
- Ting Meng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, China
| | - Yingbo Lu
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Peng Lei
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shijun Li
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Ke Deng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xunwen Xiao
- School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, China
| | - Kenji Ogino
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Qingdao Zeng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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