1
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Chang AM, Rudshteyn B, Warnke I, Batista VS. Inverse Design of a Catalyst for Aqueous CO/CO2 Conversion Informed by the NiII–Iminothiolate Complex. Inorg Chem 2018; 57:15474-15480. [DOI: 10.1021/acs.inorgchem.8b02799] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Alexander M. Chang
- Department of Chemistry and Energy Sciences Institute, Yale University, New Haven, Connecticut 06520, United States
| | - Benjamin Rudshteyn
- Department of Chemistry and Energy Sciences Institute, Yale University, New Haven, Connecticut 06520, United States
| | - Ingolf Warnke
- Department of Chemistry and Energy Sciences Institute, Yale University, New Haven, Connecticut 06520, United States
| | - Victor S. Batista
- Department of Chemistry and Energy Sciences Institute, Yale University, New Haven, Connecticut 06520, United States
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2
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Shahroosvand H, Abbasi P, Bideh BN. Dye-Sensitized Solar Cell Based on Novel Star-Shaped Ruthenium Polypyridyl Sensitizer: New Insight into the Relationship between Molecular Designing and Its Outstanding Charge Carrier Dynamics. ChemistrySelect 2018. [DOI: 10.1002/slct.201800200] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hashem Shahroosvand
- Group for Molecular Engineering of Advanced Functional Materials (GMA); Department of Chemistry; University of Zanjan; Zanjan IRAN
| | - Parisa Abbasi
- Group for Molecular Engineering of Advanced Functional Materials (GMA); Department of Chemistry; University of Zanjan; Zanjan IRAN
| | - Babak Nemati Bideh
- Group for Molecular Engineering of Advanced Functional Materials (GMA); Department of Chemistry; University of Zanjan; Zanjan IRAN
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3
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Shahroosvand H, Eskandari M. Ultrafast interfacial charge transfer from the LUMO+1 in ruthenium(ii) polypyridyl quinoxaline-sensitized solar cells. Dalton Trans 2018; 47:561-576. [PMID: 29239438 DOI: 10.1039/c7dt03769d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
This paper describes the implementation of robust and modular sensitizers containing aromatic-amphiphilic ligands to provide new insights into the relationship between the molecular structure and electron injection process governing the efficiency of dye-sensitized solar cells (DSSCs). The significance of this work lies in the combination of favorable experimental and theoretical results in a new class of Ru(ii) polypyridyl complexes with the molecular formula of [Ru(E101)(Dicnq)x(Y)] which is named M101-M104 when X = 1 and Y = bpy, X = 1 and Y = phen, X = 2, and X = 1 and Y = 2 NCS, respectively. E101 and Dicnq ligands are 1,10-phenanthroline-5,6 heptan ammin and 6,7-dicyanodipyrido[2,2-d:2',3'-f]quinoxaline, respectively. The good agreement between the experimental and the time-dependent density functional theory (TDDFT)-calculated absorption spectra of the M101-104 sensitizers allowed us to provide a detailed assignment of the main spectral features of the investigated dyes. M102 which contained phen as an ancillary ligand had the best photovoltaic performance which can be attributed to the higher light harvesting of M102 in the visible light region. A DSSC based on complex M102 without the E101 ligand did not show any observable power conversion efficiency (PCE), indicating the importance of the amphiphilic ligand, E101. Transient absorption studies indicated that the ratio of kreg/krec (krec = the rate constant of the recombination of the dye and kreg = the rate constant of regeneration in the presence of the electrolyte) for M101-104 is 1.1, 2.9, 1.3, and 1.2, clearly confirming a weak competition between dye regeneration and recombination. Therefore, because this ratio for M101, 103, and 104 is small, kreg ≈ krec, the operation of the device has been limited by back electron transports, subsequently enhancing the recombination process. However, the rate of recombination is relatively normal for an efficient DSSC, while the rate of regeneration is very low. Subsequently, the PCE will be poor, confirming the role of aliphatic chains in reducing the recombination process. To obtain a deeper insight into the charge transfer process in the investigated devices, ab initio DFT molecular dynamics simulations and quantum dynamics of electronic relaxation were carried out, clearly showing that the interfacial electron transfer (IET) time scale particularly depends on the type of ancillary ligand. The IET results substantially proved that M102 has the fast lifetime of 2.3 ps and 90 fs for the LUMO and LUMO+1, respectively, indicating the experimentally higher PCE of M102 compared to the other three investigated sensitizers.
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4
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Shahroosvand H, Abaspour S, Pashaei B, Bideh BN. On how ancillary ligand substitution affects the charge carrier dynamics in dye-sensitized solar cells. RSC Adv 2018; 8:19465-19469. [PMID: 35540976 PMCID: PMC9080644 DOI: 10.1039/c8ra02968g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 05/15/2018] [Indexed: 12/04/2022] Open
Abstract
With respect to N3, a champion sensitizer in dye-sensitized solar cells (DSSCs), S3 which contained a phenTz (1,10-phenanthroline 5-tetrazole) ancillary ligand showed outstanding improvements in molar extinction coefficient (ε) from 10 681.8 to 12 954.5 M cm−1 as well as 0.92% and 0.9% increases in power conversion efficiency (PCE) and incident photon-to-electron conversion efficiency (IPCE), reaching 8.46% and 76.5%, respectively. To find the origin of the high performance of the DSSC based on a phenTz ancillary ligand, transient absorption spectroscopy (TA) was carried out and indicated that the rate of the regeneration reaction is about 100 times faster than the rate of recombination with the dye which is very exciting and surely a good reason to promote the phenTz ligand as a promising ancillary ligand in DSSCs. With respect to N3, S3 which contained a phenTz (1,10-phenanthroline 5-tetrazole) ancillary ligand showed outstanding improvements in molar extinction coefficient (ε) as well as increases in power conversion efficiency (PCE) and incident photon-to-electron conversion efficiency (IPCE).![]()
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Affiliation(s)
- Hashem Shahroosvand
- Group for Molecular Engineering of Advanced Functional Materials (GMA)
- Chemistry Department
- University of Zanjan
- Zanjan
- Iran
| | - Saeid Abaspour
- Group for Molecular Engineering of Advanced Functional Materials (GMA)
- Chemistry Department
- University of Zanjan
- Zanjan
- Iran
| | - Babak Pashaei
- Group for Molecular Engineering of Advanced Functional Materials (GMA)
- Chemistry Department
- University of Zanjan
- Zanjan
- Iran
| | - Babak Nemati Bideh
- Group for Molecular Engineering of Advanced Functional Materials (GMA)
- Chemistry Department
- University of Zanjan
- Zanjan
- Iran
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5
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Fishman ZS, Rudshteyn B, He Y, Liu B, Chaudhuri S, Askerka M, Haller GL, Batista VS, Pfefferle LD. Fundamental Role of Oxygen Stoichiometry in Controlling the Band Gap and Reactivity of Cupric Oxide Nanosheets. J Am Chem Soc 2016; 138:10978-85. [DOI: 10.1021/jacs.6b05332] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Zachary S. Fishman
- Department
of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
| | - Benjamin Rudshteyn
- Department
of Chemistry and Energy Sciences Institute, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Yulian He
- Department
of Chemistry, Nankai University, Tianjin 300071, China
| | - Bolun Liu
- Department
of Mechanical Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
| | - Subhajyoti Chaudhuri
- Department
of Chemistry and Energy Sciences Institute, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Mikhail Askerka
- Department
of Chemistry and Energy Sciences Institute, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Gary L. Haller
- Department
of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
- Department
of Chemistry and Energy Sciences Institute, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Victor S. Batista
- Department
of Chemistry and Energy Sciences Institute, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Lisa D. Pfefferle
- Department
of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
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6
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Xie Y, Zheng J, Lan Z. Full-dimensional multilayer multiconfigurational time-dependent Hartree study of electron transfer dynamics in the anthracene/C60 complex. J Chem Phys 2016; 142:084706. [PMID: 25725750 DOI: 10.1063/1.4909521] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Electron transfer at the donor-acceptor heterojunctions plays a critical role in the photoinduced process during the solar energy conversion in organic photovoltaic materials. We theoretically investigate the electron transfer process in the anthracene/C60 donor-acceptor complex by using quantum dynamics calculations. The electron-transfer model Hamiltonian with full dimensionality was built by quantum-chemical calculations. The quantum dynamics calculations were performed using the multiconfigurational time-dependent Hartree (MCTDH) theory and multilayer (ML) MCTDH methods. The latter approach (ML-MCTDH) allows us to conduct the comprehensive study on the quantum evolution of the full-dimensional electron-transfer model including 4 electronic states and 246 vibrational degrees of freedom. Our quantum dynamics calculations exhibit the ultrafast anthracene → C60 charge transfer process because of the strong coupling between excitonic and charge transfer states. This work demonstrates that the ML-MCTDH is a very powerful method to treat the quantum evolution of complex systems.
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Affiliation(s)
- Yu Xie
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Jie Zheng
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Zhenggang Lan
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
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7
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Torres A, Oliboni RS, Rego LGC. Vibronic and Coherent Effects on Interfacial Electron Transfer Dynamics. J Phys Chem Lett 2015; 6:4927-4935. [PMID: 26606950 DOI: 10.1021/acs.jpclett.5b02191] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This Letter examines fundamental issues for electron transfer (ET) dynamics, such as adiabatic versus nonadiabatic effects during interfacial ET, the influence of vibrational degrees of freedom on the electronic dynamics, the occurrence of electronic coherences and the ensuing dephasing effects. The interplay of these mechanisms during the ultrafast ET is discussed. A theoretical method for the quantum dynamics of electrons in flexible molecular systems is used to study such issues on the interfacial ET from the perylene chromophore to the TiO2 semiconductor surface. By analyzing the Fourier transform of the survival probability curves, it is possible to discern the oscillating features that are caused by electronic coherences and vibronic effects. The vibronic degrees of freedom are treated within the atomistic level of description and their effects identified on the charge transfer dynamics. The insights revealed are general and thus can be useful for the analysis of other ET phenomena.
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Affiliation(s)
- Alberto Torres
- Department of Physics, Universidade Federal de Santa Catarina , Florianópolis, Santa Catarina CEP 88040-900, Brazil
| | - Robson S Oliboni
- Department of Physics, Universidade Federal de Santa Catarina , Florianópolis, Santa Catarina CEP 88040-900, Brazil
| | - Luis G C Rego
- Department of Physics, Universidade Federal de Santa Catarina , Florianópolis, Santa Catarina CEP 88040-900, Brazil
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8
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Akimov AV, Asahi R, Jinnouchi R, Prezhdo OV. What Makes the Photocatalytic CO2 Reduction on N-Doped Ta2O5 Efficient: Insights from Nonadiabatic Molecular Dynamics. J Am Chem Soc 2015; 137:11517-25. [DOI: 10.1021/jacs.5b07454] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexey V. Akimov
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Ryoji Asahi
- Toyota Central Research and Development Laboratories, Inc., 41-1 Yokomichi, Nagakute-shi, Aichi 480-1192, Japan
| | - Ryosuke Jinnouchi
- Toyota Central Research and Development Laboratories, Inc., 41-1 Yokomichi, Nagakute-shi, Aichi 480-1192, Japan
| | - Oleg V. Prezhdo
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
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9
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Abstract
Multilayer multiconfiguration time-dependent Hartree (ML-MCTDH) theory is a rigorous and powerful method to simulate quantum dynamics in complex many-body systems. This approach extends the original MCTDH theory of Meyer, Manthe, and Cederbaum to include dynamically contracted layers in a recursive way, within which the equations of motion are determined from the Dirac-Frenkel variational principle. This paper presents the general derivation of the theory and analyzes the important features that make the ML-MCTDH method numerically efficient. Furthermore, we discuss the generalization of the theory to treat many-body identical particles (fermions or bosons) as well as calculating energy eigenstates via the improved relaxation method.
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Affiliation(s)
- Haobin Wang
- Department of Chemistry, University of Colorado Denver, Denver, Colorado 80217-3364, United States
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10
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Li J, Kondov I, Wang H, Thoss M. Quantum dynamical simulation of photoinduced electron transfer processes in dye-semiconductor systems: theory and application to coumarin 343 at TiO₂. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2015; 27:134202. [PMID: 25767089 DOI: 10.1088/0953-8984/27/13/134202] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A recently developed methodology to simulate photoinduced electron transfer processes at dye-semiconductor interfaces is outlined. The methodology employs a first-principles-based model Hamiltonian and accurate quantum dynamics simulations using the multilayer multiconfiguration time-dependent Hartree approach. This method is applied to study electron injection in the dye-semiconductor system coumarin 343-TiO2. Specifically, the influence of electronic-vibrational coupling is analyzed. Extending previous work, we consider the influence of Dushinsky rotation of the normal modes as well as anharmonicities of the potential energy surfaces on the electron transfer dynamics.
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Affiliation(s)
- Jingrui Li
- Center for Organic Photonics and Electronics, Georgia Institute of Technology, Atlanta, GA 30332-0400,USA. Institute of Theoretical Physics and Interdisciplinary Center for Molecular Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Staudtstr. 7/B2, D-91058 Erlangen, Germany
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11
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Shahroosvand H, Zakavi S, Sousaraei A, Eskandari M. Saddle-shaped porphyrins for dye-sensitized solar cells: new insight into the relationship between nonplanarity and photovoltaic properties. Phys Chem Chem Phys 2015; 17:6347-58. [DOI: 10.1039/c4cp04722b] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report on the theoretical and experimental studies of the new dye-sensitized solar cells functionalized with 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin zinc(ii) complexes bearing 2- and 8-bromo substituents at the β positions.
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Affiliation(s)
| | - Saeed Zakavi
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences
- Zanjan
- Iran
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12
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De Angelis F, Di Valentin C, Fantacci S, Vittadini A, Selloni A. Theoretical Studies on Anatase and Less Common TiO2 Phases: Bulk, Surfaces, and Nanomaterials. Chem Rev 2014; 114:9708-53. [DOI: 10.1021/cr500055q] [Citation(s) in RCA: 321] [Impact Index Per Article: 32.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Filippo De Angelis
- Computational
Laboratory for Hybrid Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Molecolari, Via Elce di Sotto 8, I-06123 Perugia, Italy
| | - Cristiana Di Valentin
- Dipartimento
di Scienza dei Materiali, Università di Milano-Bicocca, I-20125 Milano, Italy
| | - Simona Fantacci
- Computational
Laboratory for Hybrid Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Molecolari, Via Elce di Sotto 8, I-06123 Perugia, Italy
| | - Andrea Vittadini
- Istituto
CNR per l’Energetica e le Interfasi (IENI), c/o Dipartimento
di Scienze Chimiche, Universita’ di Padova, I-35131 Padova, Italy
| | - Annabella Selloni
- Department
of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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13
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Li J, Wang H, Persson P, Thoss M. Photoinduced electron transfer processes in dye-semiconductor systems with different spacer groups. J Chem Phys 2012; 137:22A529. [DOI: 10.1063/1.4746768] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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14
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Sousa C, Tosoni S, Illas F. Theoretical Approaches to Excited-State-Related Phenomena in Oxide Surfaces. Chem Rev 2012. [DOI: 10.1021/cr300228z] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Carmen Sousa
- Departament de Química
Física and Institut de Química Teòrica i Computacional
(IQTCUB), Universitat de Barcelona, C/Martí
i Franquès 1, 08028 Barcelona, Spain
| | - Sergio Tosoni
- Departament de Química
Física and Institut de Química Teòrica i Computacional
(IQTCUB), Universitat de Barcelona, C/Martí
i Franquès 1, 08028 Barcelona, Spain
- Departamento de Química, Universidad de Las Palmas de Gran Canaria, Campus Universitario
de Tafira, 35017 Las Palmas de Gran Canaria, Spain
| | - Francesc Illas
- Departament de Química
Física and Institut de Química Teòrica i Computacional
(IQTCUB), Universitat de Barcelona, C/Martí
i Franquès 1, 08028 Barcelona, Spain
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15
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Snoeberger RC, Young KJ, Tang J, Allen LJ, Crabtree RH, Brudvig GW, Coppens P, Batista VS, Benedict JB. Interfacial electron transfer into functionalized crystalline polyoxotitanate nanoclusters. J Am Chem Soc 2012; 134:8911-7. [PMID: 22548416 PMCID: PMC4040533 DOI: 10.1021/ja301238t] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Interfacial electron transfer (IET) between a chromophore and a semiconductor nanoparticle is one of the key processes in a dye-sensitized solar cell. Theoretical simulations of the electron transfer in polyoxotitanate nanoclusters Ti(17)O(24)(OPr(i))(20) (Ti(17)) functionalized with four p-nitrophenyl acetylacetone (NPA-H) adsorbates, of which the atomic structure has been fully established by X-ray diffraction measurements, are presented. Complementary experimental information showing IET has been obtained by EPR spectroscopy. Evolution of the time-dependent photoexcited electron during the initial 5 fs after instantaneous excitation to the NPA LUMO + 1 has been evaluated. Evidence for delocalization of the excitation over multiple chromophores after excitation to the NPA LUMO + 2 state on a 15 fs time scale is also obtained. While chromophores are generally considered electronically isolated with respect to neighboring sensitizers, our calculations show that this is not necessarily the case. The present work is the most comprehensive study to date of a sensitized semiconductor nanoparticle in which the structure of the surface and the mode of molecular adsorption are precisely defined.
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Affiliation(s)
| | - Karin J. Young
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520-8107
| | - Jiji Tang
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York, 14260-3000
| | - Laura J. Allen
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520-8107
| | - Robert H. Crabtree
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520-8107
| | - Gary W. Brudvig
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520-8107
| | - Philip Coppens
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York, 14260-3000
| | - Victor S. Batista
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520-8107
| | - Jason B. Benedict
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York, 14260-3000
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16
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Xiao D, Martini LA, Snoeberger RC, Crabtree RH, Batista VS. Inverse Design and Synthesis of acac-Coumarin Anchors for Robust TiO2 Sensitization. J Am Chem Soc 2011; 133:9014-22. [DOI: 10.1021/ja2020313] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Dequan Xiao
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-81087, United States
| | - Lauren A. Martini
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-81087, United States
| | - Robert C. Snoeberger
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-81087, United States
| | - Robert H. Crabtree
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-81087, United States
| | - Victor S. Batista
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-81087, United States
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17
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Zhang CR, Liu ZJ, Chen YH, Ma J, Chen HS, Zhang ML. Density Functional Theory Study on Organic Dye Sensitizers Containing Bis-dimethylfluorenyl Amino Benzofuran. CHINESE J CHEM PHYS 2009. [DOI: 10.1088/1674-0068/22/05/489-496] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Rego LG, Santos LF, Batista VS. Coherent Control of Quantum Dynamics with Sequences of Unitary Phase-Kick Pulses. Annu Rev Phys Chem 2009; 60:293-320. [DOI: 10.1146/annurev.physchem.040808.090409] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Coherent-optical-control schemes exploit the coherence of laser pulses to change the phases of interfering dynamical pathways and manipulate dynamical processes. These active control methods are closely related to dynamical decoupling techniques, popularized in the field of quantum information. Inspired by nuclear magnetic resonance spectroscopy, dynamical decoupling methods apply sequences of unitary operations to modify the interference phenomena responsible for the system dynamics thus also belonging to the general class of coherent-control techniques. This article reviews related developments in the fields of coherent optical control and dynamical decoupling, emphasizing the control of tunneling and decoherence in general model systems. Considering recent experimental breakthroughs in the demonstration of active control of a variety of systems, we anticipate that the reviewed coherent-control scenarios and dynamical-decoupling methods should raise significant experimental interest.
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Affiliation(s)
- Luis G.C. Rego
- Departamento de Física, Universidade Federal de Santa Catarina, Florianópolis, SC 88040-900 Brazil
| | - Lea F. Santos
- Department of Physics, Yeshiva University, New York, New York 10016
| | - Victor S. Batista
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107
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19
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McNamara WR, Snoeberger RC, Li G, Schleicher JM, Cady CW, Poyatos M, Schmuttenmaer CA, Crabtree RH, Brudvig GW, Batista VS. Acetylacetonate Anchors for Robust Functionalization of TiO2 Nanoparticles with Mn(II)−Terpyridine Complexes. J Am Chem Soc 2008; 130:14329-38. [DOI: 10.1021/ja805498w] [Citation(s) in RCA: 143] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- William R. McNamara
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107
| | - Robert C. Snoeberger
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107
| | - Gonghu Li
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107
| | - James M. Schleicher
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107
| | - Clyde W. Cady
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107
| | - Macarena Poyatos
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107
| | | | - Robert H. Crabtree
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107
| | - Gary W. Brudvig
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107
| | - Victor S. Batista
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107
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20
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Wang H, Thoss M. Nonperturbative quantum simulation of time-resolved nonlinear spectra: Methodology and application to electron transfer reactions in the condensed phase. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2007.12.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Kondov I, Thoss M, Wang H. Theoretical study of ultrafast heterogeneous electron transfer reactions at dye-semiconductor interfaces: coumarin 343 at titanium oxide. J Phys Chem A 2007; 110:1364-74. [PMID: 16435796 DOI: 10.1021/jp054162z] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A theoretical study of photoinduced heterogeneous electron transfer in the dye-semiconductor system coumarin 343-TiO(2) is presented. The study is based on a generic model for heterogeneous electron transfer reactions, which takes into account the coupling of the electronic states to the nuclear degrees of freedom of coumarin 343 as well as to the surrounding solvent. The quantum dynamics of the electron injection process is simulated employing the recently proposed multilayer formulation of the multiconfiguration time-dependent Hartree method. The results reveal an ultrafast injection dynamics of the electron from the photoexcited donor state into the conduction band of the semiconductor. Furthermore, the mutual influence of electronic injection dynamics and nuclear motion is analyzed in some detail. The analysis shows that--depending on the time scale of nuclear motion--electronic vibrational coupling can result in electron transfer driven by coherent vibrational motion or vibrational motion induced by ultrafast electron transfer.
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Affiliation(s)
- Ivan Kondov
- Department of Chemistry, Technical University of Munich, D-85748 Garching, Germany
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Persson P, Lundqvist MJ, Ernstorfer R, Goddard WA, Willig F. Quantum Chemical Calculations of the Influence of Anchor-Cum-Spacer Groups on Femtosecond Electron Transfer Times in Dye-Sensitized Semiconductor Nanocrystals. J Chem Theory Comput 2006; 2:441-51. [DOI: 10.1021/ct050141x] [Citation(s) in RCA: 236] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- P. Persson
- Department of Quantum Chemistry, Uppsala University, Box 518, SE-751 20 Uppsala, Sweden, Materials and Process Simulation Center, Beckman Institute 13974, California Institute of Technology, Pasadena, California 91125, and Hahn-Meitner-Institut, Glienickerstrasse 100, D-14109 Berlin, Germany
| | - M. J. Lundqvist
- Department of Quantum Chemistry, Uppsala University, Box 518, SE-751 20 Uppsala, Sweden, Materials and Process Simulation Center, Beckman Institute 13974, California Institute of Technology, Pasadena, California 91125, and Hahn-Meitner-Institut, Glienickerstrasse 100, D-14109 Berlin, Germany
| | - R. Ernstorfer
- Department of Quantum Chemistry, Uppsala University, Box 518, SE-751 20 Uppsala, Sweden, Materials and Process Simulation Center, Beckman Institute 13974, California Institute of Technology, Pasadena, California 91125, and Hahn-Meitner-Institut, Glienickerstrasse 100, D-14109 Berlin, Germany
| | - W. A. Goddard
- Department of Quantum Chemistry, Uppsala University, Box 518, SE-751 20 Uppsala, Sweden, Materials and Process Simulation Center, Beckman Institute 13974, California Institute of Technology, Pasadena, California 91125, and Hahn-Meitner-Institut, Glienickerstrasse 100, D-14109 Berlin, Germany
| | - F. Willig
- Department of Quantum Chemistry, Uppsala University, Box 518, SE-751 20 Uppsala, Sweden, Materials and Process Simulation Center, Beckman Institute 13974, California Institute of Technology, Pasadena, California 91125, and Hahn-Meitner-Institut, Glienickerstrasse 100, D-14109 Berlin, Germany
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Abuabara SG, Rego LGC, Batista VS. Influence of Thermal Fluctuations on Interfacial Electron Transfer in Functionalized TiO2 Semiconductors. J Am Chem Soc 2005; 127:18234-42. [PMID: 16366577 DOI: 10.1021/ja055185u] [Citation(s) in RCA: 118] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The influence of thermal fluctuations on the dynamics of interfacial electron transfer in sensitized TiO2-anatase semiconductors is investigated by combining ab initio DFT molecular dynamics simulations and quantum dynamics propagation of transient electronic excitations. It is shown that thermal nuclear fluctuations speed up the underlying interfacial electron transfer dynamics by introducing nonadiabatic transitions between electron acceptor states, localized in the vicinity of the photoexcited adsorbate, and delocalized states extended throughout the semiconductor material, creating additional relaxation pathways for carrier diffusion. Furthermore, it is shown that room-temperature thermal fluctuations reduce the anisotropic character of charge diffusion along different directions in the anatase crystal and make similar the rates for electron injection from adsorbate states of different character. The reported results are particularly relevant to the understanding of temperature effects on surface charge separation mechanisms in molecular-based photo-optic devices.
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Affiliation(s)
- Sabas G Abuabara
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, USA
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Duncan WR, Prezhdo OV. Nonadiabatic Molecular Dynamics Study of Electron Transfer from Alizarin to the Hydrated Ti4+ Ion. J Phys Chem B 2005; 109:17998-8002. [PMID: 16853310 DOI: 10.1021/jp052570x] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ab initio real-time nonadiabatic (NA) molecular dynamics (MD) simulations are performed in order to investigate the photoinduced electron transfer (ET) from alizarin to the hydrated Ti4+ ion and compare it with the ET into bulk TiO2 that forms the basis of the Grätzel type solar cell. The experimental data and electronic structure calculations indicate that the photoexcitation spectra of alizarin attached to either bulk TiO2 or the Ti4+ ion in solution are very similar. In contrast, the NAMD simulations at ambient temperature predict marked differences between the ET dynamics that follow the photoexcitation in the two systems. The simulation of ET between alizarin and the TiO2 surface shows predominantly adiabatic transfer that occurs within 8 fs (Duncan et al. J. Am. Chem. Soc. 2005, 127, 7941), in agreement with the time-resolved experimental data. The simulation of alizarin attached to the hydrated Ti4+ ion reported presently predicts that the ET does occur, but on a slower 30 fs time scale, with a substantially reduced amplitude and by a predominantly NA mechanism. The differences are attributed to the disparity in the acceptor states of bulk TiO2 and the Ti4+ ion in solution. It is shown that the predicted alizarin-Ti4+ ET dynamics can be verified experimentally.
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Affiliation(s)
- Walter R Duncan
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, USA
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