51
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Salpage SR, Paul A, Som B, Banerjee T, Hanson K, Smith MD, Vannucci AK, Shimizu LS. Structural, electrochemical and photophysical properties of an exocyclic di-ruthenium complex and its application as a photosensitizer. Dalton Trans 2016; 45:9601-7. [PMID: 27216541 DOI: 10.1039/c6dt01377e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The reaction of cis-bis(2,2'-bipyridine)dichlororuthenium(ii) hydrate with a conformationally mobile bipyridyl macrocycle afforded [(bpy)2Ru(μ-L)Ru(bpy)2]Cl4·6H2O, a bridged di-Ru complex. Single crystal X-ray diffraction showed the macrocyclic ligand adopting a bowl-like structure with the exo-coordinated Ru(ii) centers separated by 7.29 Å. Photophysical characterization showed that the complex absorbs in the visible region (λmax = 451 nm) with an emission maximum at 610 nm (τ = 706 ns, ΦPL = 0.021). Electrochemical studies indicate the di-Ru complex undergoes three one-electron reversible reductions and a reversible one-electron oxidation process. This electrochemical reversibility is a key characteristic for its use as an electron transfer agents. The complex was evaluated as a photocatalyst for the electronically mismatched Diels-Alder reaction of isoprene and trans-anethole using visible light. It afforded the expected product in good conversion (69%) and selectivity (dr > 10 : 1) at low loadings (0.5-5.0 mol%) and the sensitizer/catalyst was readily recycled. These results suggest that the bipyridyl macrocycle could be widely applied as a bridging ligand for the generation of chromophore-catalyst assemblies.
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Affiliation(s)
- Sahan R Salpage
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA.
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52
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On the performance of ruthenium dyes in dye sensitized solar cells: a free cluster approach based on theoretical indexes. J Mol Model 2016; 22:118. [DOI: 10.1007/s00894-016-2984-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Accepted: 04/10/2016] [Indexed: 10/21/2022]
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53
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Koyyada G, Kumar CH P, Salvatori P, Marotta G, Lobello MG, Bizzarri O, De Angelis F, Malapaka C. New terpyridine-based ruthenium complexes for dye sensitized solar cells applications. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2015.11.031] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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54
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Lu ZZ, Peng JD, Wu AK, Lin CH, Wu CG, Ho KC, Lin YC, Lu KL. Heteroleptic Ruthenium Sensitizers with Hydrophobic Fused-Thiophenes for Use in Efficient Dye-Sensitized Solar Cells. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501321] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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55
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Synthesis and crystal structure of a novel ruthenium(II) complex with in situ generated dithiobiurea ligand. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2015.12.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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56
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Venkatraman V, Abburu S, Alsberg BK. Artificial evolution of coumarin dyes for dye sensitized solar cells. Phys Chem Chem Phys 2016; 17:27672-82. [PMID: 26428071 DOI: 10.1039/c5cp04624f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The design and discovery of novel molecular structures with optimal properties has been an ongoing effort for materials scientists. This field has in general been dominated by experiment driven trial-and-error approaches that are often expensive and time-consuming. Here, we investigate if a de novo computational design methodology can be applied to the design of coumarin-based dye sensitizers with improved properties for use in Grätzel solar cells. To address the issue of synthetic accessibility of the designed compounds, a fragment-based assembly is employed, wherein the combination of chemical motifs (derived from the existing databases of structures) is carried out with respect to user-adaptable set of rules. Rather than using computationally intensive density functional theory (DFT)/ab initio methods to screen candidate dyes, we employ quantitative structure-property relationship (QSPR) models (calibrated from empirical data) for rapid estimation of the property of interest, which in this case is the product of short circuit current (Jsc) and open circuit voltage (Voc). Since QSPR models have limited validity, pre-determined applicability domain criteria are used to prevent unacceptable extrapolation. DFT analysis of the top-ranked structures provides supporting evidence of their potential for dye sensitized solar cell applications.
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Affiliation(s)
- Vishwesh Venkatraman
- Department of Chemistry, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway.
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57
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Laramée-Milette B, Hanan GS. Ruthenium bistridentate complexes with non-symmetrical hexahydro-pyrimidopyrimidine ligands: a structural and theoretical investigation of their optical and electrochemical properties. Dalton Trans 2016; 45:12507-17. [DOI: 10.1039/c6dt02408d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The optical and electronic properties of six Ru complexes with non-symmetrical tridentate ligands have been investigated and, as corroborated by electrochemical data, the presence of the hpp ligand strongly affects the oxidation potential of the metal ion.
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Affiliation(s)
| | - Garry S. Hanan
- Département de Chimie
- Université de Montréal
- Montréal
- Canada
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58
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She Z, Cheng Y, Zhang L, Li X, Wu D, Guo Q, Lan J, Wang R, You J. Novel Ruthenium Sensitizers with a Phenothiazine Conjugated Bipyridyl Ligand for High-Efficiency Dye-Sensitized Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2015; 7:27831-7. [PMID: 26624527 DOI: 10.1021/acsami.5b09160] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Two efficient ruthenium sensitizers with a phenothiazine-modified bipyridine as an ancillary ligand, coded SCZ-1 and SCZ-2, have been developed as dyes in dye-sensitized solar cells (DSSCs). Both sensitizers exhibit low-energy metal-to-ligand charge transfer (MLCT) bands centered at 539 nm with high molar extinction coefficients of 1.77 × 10(4) M(-1) cm(-1) for SCZ-1 and 1.66 × 10(4) M(-1) cm(-1) for SCZ-2, which are significantly higher than the corresponding value for the reference N719 (1.27 × 10(4) M(-1) cm(-1)), indicating that the light-harvesting capacity of ruthenium sensitizers can be reinforced by introducing phenothiazine moieties into the bipyridine ligand. Under AM 1.5G irradiation (100 mW cm(-2)), SCZ-1 and SCZ-2 sensitized DSSC devices show impressive power conversion efficiencies (PCE) up to 10.4% by using of iodide-based electrolytes, which exceeds that of N719 (9.9%) under the same conditions. Both of the open circuit voltage (VOC) and fill factor (FF) of SCZ-sensitized solar cells approximate to those of N719-sensitized cell. The relatively higher efficiencies of the SCZ-sensitized cells than that of N719-sensitized cell come from their higher short-circuit photocurrent density (JSC), which may be mainly attributed to the high absorption coefficient. The absorption spectrum and device efficiency of SCZ-1 are both quite close to those of SCZ-2, suggesting that the difference in alkyl chains on the N atom of phenothiazine is not a decisive factor in affecting the photovoltaic performance of dyes.
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Affiliation(s)
- Zhijie She
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and State Key Laboratory of Biotherapy, West China Medical School, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Yangyang Cheng
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and State Key Laboratory of Biotherapy, West China Medical School, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Luoqiang Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and State Key Laboratory of Biotherapy, West China Medical School, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Xiaoyu Li
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and State Key Laboratory of Biotherapy, West China Medical School, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Di Wu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and State Key Laboratory of Biotherapy, West China Medical School, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Qiang Guo
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and State Key Laboratory of Biotherapy, West China Medical School, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Jingbo Lan
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and State Key Laboratory of Biotherapy, West China Medical School, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Ruilin Wang
- College of Materials Science and Engineering, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and State Key Laboratory of Biotherapy, West China Medical School, Sichuan University , 29 Wangjiang Road, Chengdu 610064, China
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59
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Sun MJ, Shao JY, Yao CJ, Zhong YW, Yao J. Osmium Bisterpyridine Complexes with Redox-Active Amine Substituents: A Comparison Study with Ruthenium Analogues. Inorg Chem 2015; 54:8136-47. [DOI: 10.1021/acs.inorgchem.5b01420] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Meng-Jia Sun
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory
of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jiang-Yang Shao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory
of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Chang-Jiang Yao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory
of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yu-Wu Zhong
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory
of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jiannian Yao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory
of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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60
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Yumin L, Minli Z, Yun J, Yu X, Weiwei S, Xing-Zhong Z. General Strategy to Construct Hierarchical TiO 2 Nanorod Arrays coupling with Plasmonic Resonance for Dye-sensitized Solar Cells. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.05.102] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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61
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Moya S, López R, Pérez-Zúñiga C, Yáñez M, Aguirre P. Synthesis and characterization of ruthenium(II) complexes incorporating 4′-phenyl-terpyridine and triphenylphosphine. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1047357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- S.A. Moya
- Facultad de Química y Biología, Departamento de Química de los Materiales, Universidad de Santiago de Chile, Santiago, Chile
| | - R. López
- Facultad de Química y Biología, Departamento de Química de los Materiales, Universidad de Santiago de Chile, Santiago, Chile
| | - C. Pérez-Zúñiga
- Facultad de Química y Biología, Departamento de Química de los Materiales, Universidad de Santiago de Chile, Santiago, Chile
| | - M. Yáñez
- Facultad de Química y Biología, Departamento de Química de los Materiales, Universidad de Santiago de Chile, Santiago, Chile
| | - P. Aguirre
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
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62
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Ragoussi ME, Torres T. New generation solar cells: concepts, trends and perspectives. Chem Commun (Camb) 2015; 51:3957-72. [PMID: 25616149 DOI: 10.1039/c4cc09888a] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Organic, dye-sensitized and perovskite solar cell technologies have triggered widespread interest in recent years due to their very promising potential towards a high solar electricity future. A number of important milestones have marked the roadmap of each sector on the way to today's outstanding performances, but there still remains plenty of scope for further improvement. The most influential landmarks, together with basic concepts and future perspectives, are unraveled in this review.
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Affiliation(s)
- Maria-Eleni Ragoussi
- Departamento de Química Orgánica, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
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63
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Mecchia Ortiz JH, Longo C, Katz NE. Polypyridyl ruthenium complexes containing anchoring nitrile groups as TiO2 sensitizers for application in solar cells. INORG CHEM COMMUN 2015. [DOI: 10.1016/j.inoche.2015.03.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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64
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Synthesis and characterization of luminescent zinc(II) complexes with a N,N-bidentate 1-pyridylimidazo[1,5-a]pyridine ligand. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.02.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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65
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Scheerer S, Rotthowe N, Abdel-Rahman OS, He X, Rigaut S, Kvapilová H, Záliš S, Winter RF. Vinyl Ruthenium-Modified Biphenyl and 2,2′-Bipyridines. Inorg Chem 2015; 54:3387-402. [DOI: 10.1021/ic503075e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Stefan Scheerer
- Fachbereich Chemie, Universität Konstanz, Universitätsstraße 10, D-78453 Konstanz, Germany
| | - Nils Rotthowe
- Fachbereich Chemie, Universität Konstanz, Universitätsstraße 10, D-78453 Konstanz, Germany
| | - Obadah S. Abdel-Rahman
- Fachbereich Chemie, Universität Konstanz, Universitätsstraße 10, D-78453 Konstanz, Germany
| | - Xiaoyan He
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, Campus de Beaulieu, F-35042, Rennes Cedex, France
| | - Stéphane Rigaut
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, Campus de Beaulieu, F-35042, Rennes Cedex, France
| | - Hana Kvapilová
- J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic
| | - Stanislav Záliš
- J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, CZ-18223 Prague, Czech Republic
| | - Rainer F. Winter
- Fachbereich Chemie, Universität Konstanz, Universitätsstraße 10, D-78453 Konstanz, Germany
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66
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Schindler J, Kupfer S, Wächtler M, Guthmuller J, Rau S, Dietzek B. Photophysics of a Ruthenium 4H-Imidazole Panchromatic Dye in Interaction with Titanium Dioxide. Chemphyschem 2015; 16:1061-70. [DOI: 10.1002/cphc.201402856] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Indexed: 11/11/2022]
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67
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Chi Y, Wu KL, Wei TC. Ruthenium and Osmium Complexes That Bear Functional Azolate Chelates for Dye-Sensitized Solar Cells. Chem Asian J 2015; 10:1098-115. [DOI: 10.1002/asia.201403261] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Indexed: 01/24/2023]
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68
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Luca OR, Gustafson JL, Maddox SM, Fenwick AQ, Smith DC. Catalysis by electrons and holes: formal potential scales and preparative organic electrochemistry. Org Chem Front 2015. [DOI: 10.1039/c5qo00075k] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present review surveys current chemical understanding of catalysis by addition and removal of an electron.
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Affiliation(s)
- Oana R. Luca
- Joint Center for Artificial Photosynthesis
- Division of Chemistry and Chemical Engineering
- California Institute of Technology
- Pasadena
- USA
| | | | - Sean M. Maddox
- Department of Chemistry and Biochemistry
- San Diego State University
- San Diego
- USA
| | - Aidan Q. Fenwick
- Joint Center for Artificial Photosynthesis
- Division of Chemistry and Chemical Engineering
- California Institute of Technology
- Pasadena
- USA
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69
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Marotta G, Kumar CP, Lobello MG, Cavazzini F, Salvatori P, Ganesh K, Nazeeruddin MK, Chandrasekharam M, De Angelis F. Novel heteroleptic Ru(ii) complexes: synthesis, characterization and application in dye-sensitized solar cells. Dalton Trans 2015; 44:5369-78. [DOI: 10.1039/c4dt03633f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photovoltaic efficiencies of 6–8%, comparable with N719, were obtained with six novel Ru(ii) heteroleptic dyes.
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Affiliation(s)
- Gabriele Marotta
- Computational Laboratory for Hybrid and Organic Photovoltaics
- Istituto CNR di Scienze e Tecnologie Molecolari
- Perugia
- Italy
- Dipartimento di Chimica
| | - Ch. Pavan Kumar
- CSIR-Indian Institute of Chemical Technology
- I & PC Division
- Hyderabad-500607
- India
- Academy of Scientific and Innovative Research
| | - Maria Grazia Lobello
- Computational Laboratory for Hybrid and Organic Photovoltaics
- Istituto CNR di Scienze e Tecnologie Molecolari
- Perugia
- Italy
| | - Francesca Cavazzini
- Computational Laboratory for Hybrid and Organic Photovoltaics
- Istituto CNR di Scienze e Tecnologie Molecolari
- Perugia
- Italy
| | - Paolo Salvatori
- Computational Laboratory for Hybrid and Organic Photovoltaics
- Istituto CNR di Scienze e Tecnologie Molecolari
- Perugia
- Italy
- D3-Computation
| | - Koyyada Ganesh
- CSIR-Indian Institute of Chemical Technology
- I & PC Division
- Hyderabad-500607
- India
- Academy of Scientific and Innovative Research
| | - Mohammad Khaja Nazeeruddin
- Laboratory of Photonics and Interfaces
- Institute of Chemical Science and Engineering EPFL
- CH-1015 Lausanne
- Switzerland
| | - Malapaka Chandrasekharam
- CSIR-Indian Institute of Chemical Technology
- I & PC Division
- Hyderabad-500607
- India
- Academy of Scientific and Innovative Research
| | - Filippo De Angelis
- Computational Laboratory for Hybrid and Organic Photovoltaics
- Istituto CNR di Scienze e Tecnologie Molecolari
- Perugia
- Italy
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70
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Tortorella S, Marotta G, Cruciani G, De Angelis F. Quantitative structure–property relationship modeling of ruthenium sensitizers for solar cells applications: novel tools for designing promising candidates. RSC Adv 2015. [DOI: 10.1039/c5ra01906k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
To date, the most common way of screening new potential sensitizers for dye sensitized solar cells is via the traditional time and money consuming trial and error approach.
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Affiliation(s)
- Sara Tortorella
- Drug Design and Molecular Modeling Laboratory
- Department of Chemistry, Biology and Biotechnology
- University of Perugia
- Italy
| | - Gabriele Marotta
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO)
- Institute of Molecular Science and Technologies (ISTM-CNR)
- Perugia
- Italy
| | - Gabriele Cruciani
- Drug Design and Molecular Modeling Laboratory
- Department of Chemistry, Biology and Biotechnology
- University of Perugia
- Italy
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO)
- Institute of Molecular Science and Technologies (ISTM-CNR)
- Perugia
- Italy
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71
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Shao JY, Fu N, Yang WW, Zhang CY, Zhong YW, Lin Y, Yao J. Cyclometalated ruthenium(ii) complexes with bis(benzimidazolyl)benzene for dye-sensitized solar cells. RSC Adv 2015. [DOI: 10.1039/c5ra20294a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The length of alkyl chains on the benzimidazole rings of cyclometalated ruthenium dyes is critical to the DSSC performance.
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Affiliation(s)
- Jiang-Yang Shao
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Nianqing Fu
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Wen-Wen Yang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Chun-Yu Zhang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Yu-Wu Zhong
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Yuan Lin
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Jiannian Yao
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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72
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73
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Rees TW, Baranoff E. Ruthenium complexes with tridentate ligands for dye-sensitized solar cells. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.04.051] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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74
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de Ruiter G, Lahav M, Evmenenko G, Dutta P, Cristaldi DA, Gulino A, van der Boom ME. Composite molecular assemblies: nanoscale structural control and spectroelectrochemical diversity. J Am Chem Soc 2014; 135:16533-44. [PMID: 24159900 DOI: 10.1021/ja407659z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The controlled deposition of metal complexes from solution on inorganic surfaces offers access to functional materials that otherwise would be elusive. For such surface-confined interfaces to form, specific assembly sequences are often used. We show here that varying the assembly sequence of two well-defined and iso-structural osmium and ruthenium polypyridyl complexes results in interfaces with strikingly different spectroelectrochemical properties. Successive deposition of redox-active layers of osmium and ruthenium polypyridyl complexes, leads to self-propagating molecular assemblies (SPMAs) with distinct internal interfaces and individually addressable components. In contrast, the clear separation of these interfaces upon sequential deposition of these two complexes, results in charge trapping or electrochemical communication between the metal centers, as a function of layer thickness and applied assembly sequence. The SPMAs were characterized using a variety of techniques, including: UV–vis spectroscopy, spectroscopic ellipsometry, electrochemistry, synchrotron X-ray reflectivity, angle-resolved X-ray photoelectron spectroscopy, and spectroelectrochemistry. The combined data demonstrate that the sequence-dependent assembly is a decisive factor that influences and provides the material properties that are difficult to obtain otherwise.
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75
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Neuthe K, Brandt H, Hinsch A, Tzschucke CC, Veurman W, Ziem B, Haag R. Thiocyanate-Free versus Thiocyanate-Containing Dyes for TiO 2-Based Dye-Sensitized Solar Cells. ChemElectroChem 2014. [DOI: 10.1002/celc.201402078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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76
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Neuthe K, Popeney C, Bialecka K, Hinsch A, Sokolowski A, Veurmann W, Haag R. Simple NIR complexes and their applicability in dye-sensitized solar cells. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.07.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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77
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Lobello MG, Wu KL, Reddy MA, Marotta G, Grätzel M, Nazeeruddin MK, Chi Y, Chandrasekharam M, Vitillaro G, De Angelis F. Engineering of Ru(II) dyes for interfacial and light-harvesting optimization. Dalton Trans 2014; 43:2726-32. [PMID: 24366343 DOI: 10.1039/c3dt53272k] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A new Ru(II) dye, Ru(L1)(L2) (NCS)2, L1 = (4-(5-hexylthiophen-2-yl)-4'(4-carboxyl-phenyl 2,2'-bipyridine) and L2 = (4-4'-dicarboxy-2,2'-bipyridine), labelled MC112, based on a dissymmetric bipyridine ligand for improved interfacial and optical properties, was synthesized and used in DSCs, yielding photovoltaic efficiencies of 7.6% under standard AM 1.5 sunlight and an excellent device stability. Increased light harvesting and IPCE maximum were observed with MC112 compared to the prototypical homoleptic N719 dye, due to the functionalized bipyridyne ligand acting as an antenna. In addition, the mixed bipyridyne ligand allowed MC112 binding to TiO2 to occur via three anchoring carboxylic groups, thus exhibiting similar interfacial properties to those of the N719 dye. DFT/TDDFT calculations were performed on the new dye, both in solution and adsorbed on a TiO2 surface model, revealing that the peculiar photovoltaic properties of the MC112 dye are related to its anchoring mode. The new design rule thus allows us to engineer both light-harvesting and interfacial properties in the same dye.
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Affiliation(s)
- Maria Grazia Lobello
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Via elce di Sotto 8, I-06213, Perugia, Italy.
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78
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Booysen IN, Maikoo S, Akerman MP, Xulu B. Novel ruthenium(II) and (III) compounds with multidentate Schiff base chelates bearing biologically significant moieties. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.05.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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79
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Maroń AM, Małecki JG. Spectroscopic characterization of chloride and pseudohalide ruthenium(II) complexes with 4-(4-nitrobenzyl)pyridine. TRANSIT METAL CHEM 2014. [DOI: 10.1007/s11243-014-9865-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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80
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Breivogel A, Kreitner C, Heinze K. Redox and Photochemistry of Bis(terpyridine)ruthenium(II) Amino Acids and Their Amide Conjugates - from Understanding to Applications. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402466] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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81
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Sánchez Carballo M, Urbani M, Chandiran AK, González-Rodríguez D, Vázquez P, Grätzel M, Nazeeruddin MK, Torres T. Branched and bulky substituted ruthenium sensitizers for dye-sensitized solar cells. Dalton Trans 2014; 43:15085-91. [DOI: 10.1039/c4dt01357c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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82
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Cui BB, Shao JY, Zhong YW. Bis-Tridentate Ruthenium Complexes with a Redox-Active Amine Substituent: Electrochemical, Spectroscopic, and DFT/TDDFT Studies. Organometallics 2014. [DOI: 10.1021/om500486v] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Bin-Bin Cui
- Beijing National Laboratory for
Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Jiang-Yang Shao
- Beijing National Laboratory for
Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Yu-Wu Zhong
- Beijing National Laboratory for
Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
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83
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Manfredi N, Cecconi B, Abbotto A. Multi-Branched Multi-Anchoring Metal-Free Dyes for Dye-Sensitized Solar Cells. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402422] [Citation(s) in RCA: 103] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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84
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Ardizzoia GA, Brenna S, Durini S, Therrien B, Veronelli M. Synthesis, Structure, and Photophysical Properties of Blue-Emitting Zinc(II) Complexes with 3-Aryl-Substituted 1-Pyridylimidazo[1,5-a]pyridine Ligands. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402415] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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85
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Matano Y, Hayashi Y, Nakano H, Imahori H. N,S,P-Hybrid Donor-π-Acceptor Organic Dyes for Dye-Sensitized Solar Cell: Synthesis, Optical Properties, and Photovoltaic Performances. HETEROATOM CHEMISTRY 2014. [DOI: 10.1002/hc.21188] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yoshihiro Matano
- Department of Chemistry; Faculty of Science; Niigata University; Niigata 950-2181 Japan
| | - Yukiko Hayashi
- Department of Molecular Engineering; Graduate School of Engineering; Kyoto University; Kyoto 615-8510 Japan
| | - Haruyuki Nakano
- Department of Chemistry; Graduate School of Sciences; Kyushu University; Fukuoka 812-8581 Japan
| | - Hiroshi Imahori
- Department of Molecular Engineering; Graduate School of Engineering; Kyoto University; Kyoto 615-8510 Japan
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS); Kyoto University; Kyoto 615-8510 Japan
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86
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Kurzeev SA, Medved’ko AV, Grinberg VA, Kozyukhin SA, Emets VV, Sadovnikov AA, Baranchikov AE, Ivanov VK, Andreev VN, Nizhnikovskii EA. Synthesis and photoelectrochemical properties of cyclometallated ruthenium(II) complex. RUSS J INORG CHEM+ 2014. [DOI: 10.1134/s0036023614070110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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87
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Grinberg VA, Medved’ko AV, Emets VV, Kurzeev SA, Kozyukhin SA, Baranchikov AE, Ivanov VK, Andreev VN, Nizhnikovskii EA. Cyclometalated ruthenium complex as a promising sensitizer in dye-sensitized solar cells. RUSS J ELECTROCHEM+ 2014. [DOI: 10.1134/s1023193514060056] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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88
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Wei Y, Wu Z, An Z, Chen X, Chen P, Liu Q. Highly Efficient Dye-sensitized Solar Cells by Co-sensitization of Organic Dyes and Co-adsorbent Chenodeoxycholic Acid. CHINESE J CHEM 2014. [DOI: 10.1002/cjoc.201400190] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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89
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Wu Z, Wei Y, An Z, Chen X, Chen P. Co-sensitization of N719 with an Organic Dye for Dye-sensitized Solar Cells Application. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.5.1449] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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90
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Breivogel A, Wooh S, Dietrich J, Kim TY, Kang YS, Char K, Heinze K. Anchor-Functionalized Push-Pull-Substituted Bis(tridentate) Ruthenium(II) Polypyridine Chromophores: Photostability and Evaluation as Photosensitizers. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402091] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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91
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Salvatori P, Amat A, Pastore M, Vitillaro G, Sudhakar K, Giribabu L, Soujanya Y, De Angelis F. Corrole dyes for dye-sensitized solar cells: The crucial role of the dye/semiconductor energy level alignment. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2013.12.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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92
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Sinn S, Schulze B, Friebe C, Brown DG, Jäger M, Altuntaş E, Kübel J, Guntner O, Berlinguette CP, Dietzek B, Schubert US. Physicochemical Analysis of Ruthenium(II) Sensitizers of 1,2,3-Triazole-Derived Mesoionic Carbene and Cyclometalating Ligands. Inorg Chem 2014; 53:2083-95. [DOI: 10.1021/ic402702z] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Stephan Sinn
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Benjamin Schulze
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Christian Friebe
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Douglas G. Brown
- Department
of Chemistry, University of Calgary, 2500 University Drive N.W., Calgary, Alberta, Canada T2N 1N4
| | - Michael Jäger
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Esra Altuntaş
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Joachim Kübel
- Institute
of Physical Chemistry (IPC) and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Str. 9, 07745 Jena, Germany
| | - Oliver Guntner
- Institute
of Physical Chemistry (IPC) and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Curtis P. Berlinguette
- Department
of Chemistry, University of Calgary, 2500 University Drive N.W., Calgary, Alberta, Canada T2N 1N4
- Department
of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
| | - Benjamin Dietzek
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
- Institute
of Physical Chemistry (IPC) and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Str. 9, 07745 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
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93
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Le Bahers T, Brémond E, Ciofini I, Adamo C. The nature of vertical excited states of dyes containing metals for DSSC applications: insights from TD-DFT and density based indexes. Phys Chem Chem Phys 2014; 16:14435-44. [DOI: 10.1039/c3cp55032j] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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94
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Li Z, Leed NA, Dickson-Karn NM, Dunbar KR, Turro C. Directional charge transfer and highly reducing and oxidizing excited states of new dirhodium(ii,ii) complexes: potential applications in solar energy conversion. Chem Sci 2014. [DOI: 10.1039/c3sc52366g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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95
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Werrett MV, Muzzioli S, Wright PJ, Palazzi A, Raiteri P, Zacchini S, Massi M, Stagni S. Proton-Induced Reversible Modulation of the Luminescent Output of Rhenium(I), Iridium(III), and Ruthenium(II) Tetrazolate Complexes. Inorg Chem 2013; 53:229-43. [DOI: 10.1021/ic402187e] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Melissa V. Werrett
- Department
of Chemistry, Curtin University, GPO Box U 1987, Perth, Australia, 6845
| | - Sara Muzzioli
- Department of Industrial Chemistry “Toso
Montanari”, University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy
| | - Phillip J. Wright
- Department
of Chemistry, Curtin University, GPO Box U 1987, Perth, Australia, 6845
| | - Antonio Palazzi
- Department of Industrial Chemistry “Toso
Montanari”, University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy
| | - Paolo Raiteri
- Department
of Chemistry, Curtin University, GPO Box U 1987, Perth, Australia, 6845
| | - Stefano Zacchini
- Department of Industrial Chemistry “Toso
Montanari”, University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy
| | - Massimiliano Massi
- Department
of Chemistry, Curtin University, GPO Box U 1987, Perth, Australia, 6845
| | - Stefano Stagni
- Department of Industrial Chemistry “Toso
Montanari”, University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy
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96
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Zhao J, Wu W, Sun J, Guo S. Triplet photosensitizers: from molecular design to applications. Chem Soc Rev 2013; 42:5323-51. [PMID: 23450221 DOI: 10.1039/c3cs35531d] [Citation(s) in RCA: 921] [Impact Index Per Article: 83.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Triplet photosensitizers (PSs) are compounds that can be efficiently excited to the triplet excited state which subsequently act as catalysts in photochemical reactions. The name is originally derived from compounds that were used to transfer the triplet energy to other compounds that have only a small intrinsic triplet state yield. Triplet PSs are not only used for triplet energy transfer, but also for photocatalytic organic reactions, photodynamic therapy (PDT), photoinduced hydrogen production from water and triplet-triplet annihilation (TTA) upconversion. A good PS should exhibit strong absorption of the excitation light, a high yield of intersystem crossing (ISC) for efficient production of the triplet state, and a long triplet lifetime to allow for the reaction with a reactant molecule. Most transition metal complexes show efficient ISC, but small molar absorption coefficients in the visible spectral region and short-lived triplet excited states, which make them unsuitable as triplet PSs. One obstacle to the development of new triplet PSs is the difficulty in predicting the ISC of chromophores, especially of organic compounds without any heavy atoms. This review article summarizes some molecular design rationales for triplet PSs, based on the molecular structural factors that facilitate ISC. The design of transition metal complexes with large molar absorption coefficients in the visible spectral region and long-lived triplet excited states is presented. A new method of using a spin converter to construct heavy atom-free organic triplet PSs is discussed, with which ISC becomes predictable, C60 being an example. To enhance the performance of triplet PSs, energy funneling based triplet PSs are proposed, which show broadband absorption in the visible region. Applications of triplet PSs in photocatalytic organic reactions, hydrogen production, triplet-triplet annihilation upconversion and luminescent oxygen sensing are briefly introduced.
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Affiliation(s)
- Jianzhang Zhao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, E 208 Western Compus, 2 Ling-Gong Road, Dalian 116012, P.R. China.
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97
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98
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Breivogel A, Park M, Lee D, Klassen S, Kühnle A, Lee C, Char K, Heinze K. Push-Pull Design of Bis(tridentate) Ruthenium(II) Polypyridine Chromophores as Deep Red Light Emitters in Light-Emitting Electrochemical Cells. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201301226] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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99
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Sathish V, Ramdass A, Lu ZZ, Velayudham M, Thanasekaran P, Lu KL, Rajagopal S. Aggregation-Induced Emission Enhancement in Alkoxy-Bridged Binuclear Rhenium(I) Complexes: Application as Sensor for Explosives and Interaction with Microheterogeneous Media. J Phys Chem B 2013; 117:14358-66. [DOI: 10.1021/jp407939j] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Veerasamy Sathish
- School
of Chemistry, Madurai Kamaraj University, Madurai 625 021, India
| | - Arumugam Ramdass
- School
of Chemistry, Madurai Kamaraj University, Madurai 625 021, India
| | - Zong-Zhan Lu
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | | | | | - Kuang-Lieh Lu
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
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100
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Breivogel A, Meister M, Förster C, Laquai F, Heinze K. Excited state tuning of bis(tridentate) ruthenium(II) polypyridine chromophores by push-pull effects and bite angle optimization: a comprehensive experimental and theoretical study. Chemistry 2013; 19:13745-60. [PMID: 24000040 DOI: 10.1002/chem.201302231] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Indexed: 01/22/2023]
Abstract
The synergy of push-pull substitution and enlarged ligand bite angles has been used in functionalized heteroleptic bis(tridentate) polypyridine complexes of ruthenium(II) to shift the (1) MLCT absorption and the (3) MLCT emission to lower energy, enhance the emission quantum yield, and to prolong the (3) MLCT excited-state lifetime. In these complexes, that is, [Ru(ddpd)(EtOOC-tpy)][PF6 ]2 , [Ru(ddpd-NH2 )(EtOOC-tpy)][PF6 ]2 , [Ru(ddpd){(MeOOC)3 -tpy}][PF6 ]2 , and [Ru(ddpd-NH2 ){(EtOOC)3 -tpy}][PF6 ]2 the combination of the electron-accepting 2,2';6',2''-terpyridine (tpy) ligand equipped with one or three COOR substituents with the electron-donating N,N'-dimethyl-N,N'-dipyridin-2-ylpyridine-2,6-diamine (ddpd) ligand decorated with none or one NH2 group enforces spatially separated and orthogonal frontier orbitals with a small HOMO-LUMO gap resulting in low-energy (1) MLCT and (3) MLCT states. The extended bite angle of the ddpd ligand increases the ligand field splitting and pushes the deactivating (3) MC state to higher energy. The properties of the new isomerically pure mixed ligand complexes have been studied by using electrochemistry, UV/Vis absorption spectroscopy, static and time-resolved luminescence spectroscopy, and transient absorption spectroscopy. The experimental data were rationalized by using density functional calculations on differently charged species (charge n=0-4) and on triplet excited states ((3) MLCT and (3) MC) as well as by time-dependent density functional calculations (excited singlet states).
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Affiliation(s)
- Aaron Breivogel
- Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University of Mainz, Duesbergweg 10-14, 55128 Mainz (Germany), Fax: (+49) 6131-39-27-277
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