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Li Q, Wu K, Zhu H, Yang Y, He S, Lian T. Charge Transfer from Quantum-Confined 0D, 1D, and 2D Nanocrystals. Chem Rev 2024; 124:5695-5763. [PMID: 38629390 PMCID: PMC11082908 DOI: 10.1021/acs.chemrev.3c00742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 05/09/2024]
Abstract
The properties of colloidal quantum-confined semiconductor nanocrystals (NCs), including zero-dimensional (0D) quantum dots, 1D nanorods, 2D nanoplatelets, and their heterostructures, can be tuned through their size, dimensionality, and material composition. In their photovoltaic and photocatalytic applications, a key step is to generate spatially separated and long-lived electrons and holes by interfacial charge transfer. These charge transfer properties have been extensively studied recently, which is the subject of this Review. The Review starts with a summary of the electronic structure and optical properties of 0D-2D nanocrystals, followed by the advances in wave function engineering, a novel way to control the spatial distribution of electrons and holes, through their size, dimension, and composition. It discusses the dependence of NC charge transfer on various parameters and the development of the Auger-assisted charge transfer model. Recent advances in understanding multiple exciton generation, decay, and dissociation are also discussed, with an emphasis on multiple carrier transfer. Finally, the applications of nanocrystal-based systems for photocatalysis are reviewed, focusing on the photodriven charge separation and recombination processes that dictate the function and performance of these materials. The Review ends with a summary and outlook of key remaining challenges and promising future directions in the field.
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Affiliation(s)
- Qiuyang Li
- Department
of Physics, University of Michigan, 450 Church St, Ann Arbor, Michigan 48109, United States
| | - Kaifeng Wu
- State
Key Laboratory of Molecular Reaction Dynamics and Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Haiming Zhu
- Department
of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Ye Yang
- The
State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM
(Collaborative Innovation Center of Chemistry for Energy Materials),
College of Chemistry & Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Sheng He
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Tianquan Lian
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
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Rauh F, Pantle F, Stutzmann M. Morphology, Energy Level Alignment, and Charge Transfer at the Protoporphyrin IX-Semiconductor Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5095-5106. [PMID: 37010500 DOI: 10.1021/acs.langmuir.3c00085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The combination of molecular catalysts and semiconductor substrates in hybrid heterogeneous photo- or electrocatalytic devices could yield synergistic effects that result in enhanced activity and long-term stability. The extent of synergy strongly depends on the electronic interactions and energy level alignment between the molecular states and the valence and conduction band of the substrate. These properties of hybrid interfaces are investigated for a model system composed of protoporphyrin IX (PPIX) as a stand-in for molecular catalysts and a variety of semiconductor substrates. Monolayers of PPIX are deposited using Langmuir-Blodgett deposition. Their morphology is studied in dependence of the deposition surface pressure to achieve a high-quality, dense coverage. By making use of ultraviolet-visible spectroscopy and ultraviolet photoelectron spectroscopy, the band alignment is determined by the vacuum level and incorporates an interface dipole of 0.4 eV independent of the substrate. The HOMO, LUMO, and LUMO+1 levels were determined to be at 5.6, 3.7, and 2.7 eV below the vacuum level, respectively. The quenching of PPIX photoluminescence in dependence of the potential gradient between excited state and electron affinity of the semiconductor substrates is overall in good agreement with electron transfer processes occurring at very fast time scales on the order of femtoseconds. Nevertheless, deviations from this model become apparent for narrower band gap semiconductors, which points to an additional relevance of other processes, such as energy transfer. These findings highlight the importance of matching the semiconductor to the molecular catalyst to prevent undesirable deactivation pathways.
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Affiliation(s)
- Felix Rauh
- Walter Schottky Institute and Physics Department, Technical University of Munich, Am Coulombwall 4, 85748 Garching, Germany
| | - Florian Pantle
- Walter Schottky Institute and Physics Department, Technical University of Munich, Am Coulombwall 4, 85748 Garching, Germany
| | - Martin Stutzmann
- Walter Schottky Institute and Physics Department, Technical University of Munich, Am Coulombwall 4, 85748 Garching, Germany
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Warburton RE, Soudackov AV, Hammes-Schiffer S. Theoretical Modeling of Electrochemical Proton-Coupled Electron Transfer. Chem Rev 2022; 122:10599-10650. [PMID: 35230812 DOI: 10.1021/acs.chemrev.1c00929] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Proton-coupled electron transfer (PCET) plays an essential role in a wide range of electrocatalytic processes. A vast array of theoretical and computational methods have been developed to study electrochemical PCET. These methods can be used to calculate redox potentials and pKa values for molecular electrocatalysts, proton-coupled redox potentials and bond dissociation free energies for PCET at metal and semiconductor interfaces, and reorganization energies associated with electrochemical PCET. Periodic density functional theory can also be used to compute PCET activation energies and perform molecular dynamics simulations of electrochemical interfaces. Various approaches for maintaining a constant electrode potential in electronic structure calculations and modeling complex interactions in the electric double layer (EDL) have been developed. Theoretical formulations for both homogeneous and heterogeneous electrochemical PCET spanning the adiabatic, nonadiabatic, and solvent-controlled regimes have been developed and provide analytical expressions for the rate constants and current densities as functions of applied potential. The quantum mechanical treatment of the proton and inclusion of excited vibronic states have been shown to be critical for describing experimental data, such as Tafel slopes and potential-dependent kinetic isotope effects. The calculated rate constants can be used as input to microkinetic models and voltammogram simulations to elucidate complex electrocatalytic processes.
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Affiliation(s)
- Robert E Warburton
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Alexander V Soudackov
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Sharon Hammes-Schiffer
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
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Parrino F, De Pasquale C, Palmisano L. Influence of Surface-Related Phenomena on Mechanism, Selectivity, and Conversion of TiO 2 -Induced Photocatalytic Reactions. CHEMSUSCHEM 2019; 12:589-602. [PMID: 30387918 DOI: 10.1002/cssc.201801898] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 09/28/2018] [Indexed: 06/08/2023]
Abstract
Heterogeneous photocatalysis is the result of an inextricable connection of several factors differently contributing to the overall process. Photon absorption is the "sine qua non" condition for the reaction to occur. In fact, photons can be considered as immaterial reactants, and all of the phenomena related to the interaction of light-matter play a prominent role. However, other factors contribute in a concerted way to address the reaction, so that the relative contribution of each of them is often difficult to evaluate. In this framework, the present paper highlights some aspects of the interaction of TiO2 surface-adsorbate species that could be underestimated and their influence on the conversion, selectivity, and mechanisms of photocatalytic reactions. To this aim, some paradigmatic examples on the adsorption of water and organics on TiO2 are reported.
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Affiliation(s)
- Francesco Parrino
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, viale delle Scienze 8, 90128, Palermo, Italy
- Dipartimento di Energia, Ingegneria dell'informazione e Modelli Matematici (DEIM), Università degli Studi di Palermo, viale delle Scienze Ed. 6, 90128, Palermo, Italy
- Dipartimento di Ingegneria Industriale (DII), Università di Trento, via Sommarive 9, 38123, Trento, Italy
| | - Claudio De Pasquale
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, viale delle Scienze 8, 90128, Palermo, Italy
| | - Leonardo Palmisano
- Dipartimento di Energia, Ingegneria dell'informazione e Modelli Matematici (DEIM), Università degli Studi di Palermo, viale delle Scienze Ed. 6, 90128, Palermo, Italy
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5
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Photosensitization and photocurrent switching effects in wide band gap semiconductors: CuI and TiO2 functionalized with iron and nickel complexes: from semiconductors to logic devices. J Inorg Organomet Polym Mater 2016. [DOI: 10.1007/s10904-016-0484-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Synthesis and photoelectrochemical behaviour of hydrogenated titania nanotubes modified with conducting polymer infiltrated by redox active network. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.11.102] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Pilarczyk K, Daly B, Podborska A, Kwolek P, Silverson VA, de Silva AP, Szaciłowski K. Coordination chemistry for information acquisition and processing. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.04.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Abstract
Understanding photoinduced charge transfer from nanomaterials is essential to the many applications of these materials. This review summarizes recent progress in understanding charge transfer from quantum dots (QDs), an ideal model system for investigating fundamental charge transfer properties of low-dimensional quantum-confined nanomaterials. We first discuss charge transfer from QDs to weakly coupled acceptors within the framework of Marcus nonadiabatic electron transfer (ET) theory, focusing on the dependence of ET rates on reorganization energy, electronic coupling, and driving force. Because of the strong electron-hole interaction, we show that ET from QDs should be described by the Auger-assisted ET model, which is significantly different from ET between molecules or from bulk semiconductor electrodes. For strongly quantum-confined QDs on semiconductor surfaces, the coupling can fall within the strong coupling limit, in which case the donor-acceptor interaction and ET properties can be described by the Newns-Anderson model of chemisorption. We also briefly discuss recent progress in controlling charge transfer properties in quantum-confined nanoheterostructures through wavefunction engineering and multiple exciton dissociation. Finally, we identify a few key areas for further research.
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Affiliation(s)
- Haiming Zhu
- Department of Chemistry, Emory University, Atlanta, Georgia 30322;
| | - Ye Yang
- Department of Chemistry, Emory University, Atlanta, Georgia 30322;
| | - Kaifeng Wu
- Department of Chemistry, Emory University, Atlanta, Georgia 30322;
| | - Tianquan Lian
- Department of Chemistry, Emory University, Atlanta, Georgia 30322;
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9
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Ji X, Wang W, Mattoussi H. Effects of separation distance on the charge transfer interactions in quantum dot-dopamine assemblies. Phys Chem Chem Phys 2016; 17:10108-17. [PMID: 25789996 DOI: 10.1039/c5cp00462d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We explored the effects of changing the separation distance on the charge transfer interactions between luminescent QD and proximal dopamine (in QD-dopamine assemblies), and the ensuing photoluminescence (PL) quenching. The separation distance was controlled using a tunable size bridge between the QD and dopamine via a poly(ethylene glycol) (PEG) chain where the average number of monomers was discretely varied. Using steady-state and time-resolved fluorescence measurements, we found that the photoluminescence losses were substantially more pronounced for QD-dopamine complexes prepared with the shortest PEG bridge, but progressively decreased with increasing PEG size. We also found that the charge transfer interactions can be affected by the nature of the capping ligand used. In particular, we found that interactions and PL quenching in these assemblies tracked the effects of separation distance, conjugate valence and the energy mismatch between the dopamine redox levels and QD energy levels, when a compact zwitterion was used to control the conjugate configuration. However, additional effects of shielding the access of reactive dopamine to amine groups on the QD surface, when a longer inert PEG ligand was used, were found to produce heterogeneous conjugates, alter the interactions and produce weaker PL quenching.
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Affiliation(s)
- Xin Ji
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, USA.
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10
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Electron injection efficiency in dye-sensitized solar cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2014. [DOI: 10.1016/j.jphotochemrev.2014.02.001] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Xing C, Zhang Y, Wu Z, Jiang D, Chen M. Ion-exchange synthesis of Ag/Ag2S/Ag3CuS2ternary hollow microspheres with efficient visible-light photocatalytic activity. Dalton Trans 2014; 43:2772-80. [DOI: 10.1039/c3dt52875h] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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12
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Sakata T, Azuma M. Quantum Mechanical Theory of Electrochemical Kinetics: Analysis by Electron Transfer Distance and Transition Probability. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2013. [DOI: 10.1246/bcsj.20130119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tadayoshi Sakata
- Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
| | - Masashi Azuma
- Department of Applied Chemistry, College of Engineering, Osaka Institute of Technology
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13
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Llansola-Portoles MJ, Bergkamp JJ, Tomlin J, Moore TA, Kodis G, Moore AL, Cosa G, Palacios RE. Photoinduced Electron Transfer in Perylene-TiO2Nanoassemblies. Photochem Photobiol 2013; 89:1375-82. [DOI: 10.1111/php.12108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Accepted: 05/21/2013] [Indexed: 11/30/2022]
Affiliation(s)
- Manuel J. Llansola-Portoles
- Department of Chemistry and Biochemistry; Center for Bioenergy and Photosynthesis; Arizona State University; Tempe AZ
| | - Jesse J. Bergkamp
- Department of Chemistry and Biochemistry; Center for Bioenergy and Photosynthesis; Arizona State University; Tempe AZ
| | - John Tomlin
- Department of Chemistry and Biochemistry; Center for Bioenergy and Photosynthesis; Arizona State University; Tempe AZ
| | - Thomas A. Moore
- Department of Chemistry and Biochemistry; Center for Bioenergy and Photosynthesis; Arizona State University; Tempe AZ
| | - Gerdenis Kodis
- Department of Chemistry and Biochemistry; Center for Bioenergy and Photosynthesis; Arizona State University; Tempe AZ
| | - Ana L. Moore
- Department of Chemistry and Biochemistry; Center for Bioenergy and Photosynthesis; Arizona State University; Tempe AZ
| | - Gonzalo Cosa
- Department of Chemistry and Center for Self Assembled Chemical Structures (CSACS/CRMAA); McGill University; Montreal QC Canada
| | - Rodrigo E. Palacios
- Departamento de Química; Facultad de Ciencias Exactas Físico-Químicas y Naturales; Universidad Nacional de Río Cuarto; Río Cuarto Córdoba Argentina
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14
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Chang YP, Tsai PY, Lee HL, Lin KC. Interfacial Electron Transfer from CdSe/ZnS Quantum Dots to TiO2Nanoparticles: Linker Dependence at Single Molecule Level. ELECTROANAL 2013. [DOI: 10.1002/elan.201200618] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Buchalska M, Łabuz P, Bujak Ł, Szewczyk G, Sarna T, Maćkowski S, Macyk W. New insight into singlet oxygen generation at surface modified nanocrystalline TiO2 – the effect of near-infrared irradiation. Dalton Trans 2013; 42:9468-75. [DOI: 10.1039/c3dt50399b] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Harnessing Sun's Energy with Quantum Dots Based Next Generation Solar Cell. NANOMATERIALS 2012; 3:22-47. [PMID: 28348320 PMCID: PMC5304931 DOI: 10.3390/nano3010022] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Revised: 12/12/2012] [Accepted: 12/13/2012] [Indexed: 11/17/2022]
Abstract
Our energy consumption relies heavily on the three components of fossil fuels (oil, natural gas and coal) and nearly 83% of our current energy is consumed from those sources. The use of fossil fuels, however, has been viewed as a major environmental threat because of their substantial contribution to greenhouse gases which are responsible for increasing the global average temperature. Last four decades, scientists have been searching for alternative sources of energy which need to be environmentally clean, efficient, cost-effective, renewable, and sustainable. One of the promising sustainable sources of energy can be achieved by harnessing sun energy through silicon wafer, organic polymer, inorganic dye, and quantum dots based solar cells. Among them, quantum dots have an exceptional property in that they can excite multiple electrons using only one photon. These dots can easily be synthesized, processed in solution, and incorporated into solar cell application. Interestingly, the quantum dots solar cells can exceed the Shockley-Queisser limit; however, it is a great challenge for other solar cell materials to exceed the limit. Theoretically, the quantum dots solar cell can boost the power conversion efficiency up to 66% and even higher to 80%. Moreover, in changing the size of the quantum dots one can utilize the Sun’s broad spectrum of visible and infrared ranges. This review briefly overviews the present performance of different materials-based solar cells including silicon wafer, dye-sensitized, and organic solar cells. In addition, recent advances of the quantum dots based solar cells which utilize cadmium sulfide/selenide, lead sulfide/selenide, and new carbon dots as light harvesting materials has been reviewed. A future outlook is sketched as to how one could improve the efficiency up to 10% from the current highest efficiency of 6.6%.
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Hernández LI, Godin R, Bergkamp JJ, Llansola Portolés MJ, Sherman BD, Tomlin J, Kodis G, Méndez-Hernández DD, Bertolotti S, Chesta CA, Mariño-Ochoa E, Moore AL, Moore TA, Cosa G, Palacios RE. Spectral Characteristics and Photosensitization of TiO2 Nanoparticles in Reverse Micelles by Perylenes. J Phys Chem B 2012. [DOI: 10.1021/jp3086792] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Laura I. Hernández
- Departamento de Química,
Facultad de Ciencias Exactas Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río
Cuarto, Córdoba 5800, Argentina
| | - Robert Godin
- Department of Chemistry and
Center for Self Assembled Chemical Structures (CSACS/CRMAA), McGill University, Otto Maass Chemistry Building, 801
Sherbrooke Street West, Montreal, QC, H3A 0B8, Canada
| | - Jesse J. Bergkamp
- Department of Chemistry and Biochemistry,
Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Manuel J. Llansola Portolés
- Department of Chemistry and Biochemistry,
Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Benjamin D. Sherman
- Department of Chemistry and Biochemistry,
Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - John Tomlin
- Department of Chemistry and Biochemistry,
Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Gerdenis Kodis
- Department of Chemistry and Biochemistry,
Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Dalvin D. Méndez-Hernández
- Department of Chemistry and Biochemistry,
Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Sonia Bertolotti
- Departamento de Química,
Facultad de Ciencias Exactas Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río
Cuarto, Córdoba 5800, Argentina
| | - Carlos A. Chesta
- Departamento de Química,
Facultad de Ciencias Exactas Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río
Cuarto, Córdoba 5800, Argentina
| | - Ernesto Mariño-Ochoa
- Department of Chemistry, Tecnológico de Monterrey, Campus Monterrey,
Monterrey, NL, 64849, México
| | - Ana L. Moore
- Department of Chemistry and Biochemistry,
Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Thomas A. Moore
- Department of Chemistry and Biochemistry,
Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Gonzalo Cosa
- Department of Chemistry and
Center for Self Assembled Chemical Structures (CSACS/CRMAA), McGill University, Otto Maass Chemistry Building, 801
Sherbrooke Street West, Montreal, QC, H3A 0B8, Canada
| | - Rodrigo E. Palacios
- Departamento de Química,
Facultad de Ciencias Exactas Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río
Cuarto, Córdoba 5800, Argentina
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Kwolek P, Oszajca M, Szaciłowski K. Catecholate and 2,3-acenediolate complexes of d0 ions as prospective materials for molecular electronics and spintronics. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.03.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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19
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Cánovas E, Moll P, Jensen SA, Gao Y, Houtepen AJ, Siebbeles LDA, Kinge S, Bonn M. Size-dependent electron transfer from PbSe quantum dots to SnO2 monitored by picosecond Terahertz spectroscopy. NANO LETTERS 2011; 11:5234-5239. [PMID: 22040524 DOI: 10.1021/nl202550v] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report the direct and unambiguous determination of electron transfer rates and efficiencies from PbSe quantum dots (QDs) to mesoporous SnO2 films. We monitor the time-dependent electron density within the oxide with picosecond time resolution using Terahertz spectroscopy, following optical excitation of the QDs using a femtosecond laser pulse. QD-oxide electron transfer occurs with efficiencies of ∼2% in our samples under 800 nm pumping with a marked dependence on QD size, ranging from ∼100 ps injection times for the smallest, ∼2 nm diameter QDs, to ∼1 ns time scale for ∼7 nm QDs. The size-dependent electron transfer rates are modeled within the framework of Marcus theory and the implications of the results for device design are discussed.
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Affiliation(s)
- Enrique Cánovas
- FOM Institute for Atomic and Molecular Physics, Science Park 104, 1098 XG Amsterdam, The Netherlands.
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20
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Photoinduced electron transfer from semiconductor quantum dots to metal oxide nanoparticles. Proc Natl Acad Sci U S A 2010; 108:29-34. [PMID: 21149685 DOI: 10.1073/pnas.1011972107] [Citation(s) in RCA: 319] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Quantum dot-metal oxide junctions are an integral part of next-generation solar cells, light emitting diodes, and nanostructured electronic arrays. Here we present a comprehensive examination of electron transfer at these junctions, using a series of CdSe quantum dot donors (sizes 2.8, 3.3, 4.0, and 4.2 nm in diameter) and metal oxide nanoparticle acceptors (SnO(2), TiO(2), and ZnO). Apparent electron transfer rate constants showed strong dependence on change in system free energy, exhibiting a sharp rise at small driving forces followed by a modest rise further away from the characteristic reorganization energy. The observed trend mimics the predicted behavior of electron transfer from a single quantum state to a continuum of electron accepting states, such as those present in the conduction band of a metal oxide nanoparticle. In contrast with dye-sensitized metal oxide electron transfer studies, our systems did not exhibit unthermalized hot-electron injection due to relatively large ratios of electron cooling rate to electron transfer rate. To investigate the implications of these findings in photovoltaic cells, quantum dot-metal oxide working electrodes were constructed in an identical fashion to the films used for the electron transfer portion of the study. Interestingly, the films which exhibited the fastest electron transfer rates (SnO(2)) were not the same as those which showed the highest photocurrent (TiO(2)). These findings suggest that, in addition to electron transfer at the quantum dot-metal oxide interface, other electron transfer reactions play key roles in the determination of overall device efficiency.
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21
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Macyk W, Szaciłowski K, Stochel G, Buchalska M, Kuncewicz J, Łabuz P. Titanium(IV) complexes as direct TiO2 photosensitizers. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2009.12.037] [Citation(s) in RCA: 126] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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Gaweda S, Podborska A, Macyk W, Szaciłowski K. Nanoscale optoelectronic switches and logic devices. NANOSCALE 2009; 1:299-316. [PMID: 20648267 DOI: 10.1039/b9nr00145j] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The photoelectrochemical photocurrent switching (PEPS) effect, in the beginning regarded as a scientific curiosity, has become a field of extensive study for numerous research groups all over the world. This unique effect can be utilized for nanoscale switching and information processing, furthermore, is can serve as an interface between molecular information processing and macroscopic electronics. This review summarizes recent efforts in understanding photocurrent switching effects and their application for the construction of nanoscale switches and logic devices. Furthermore, some future prospects concerning the development of electronic/optoelectronic devices based on photoactive semiconducting hybrid materials are presented.
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Affiliation(s)
- Sylwia Gaweda
- Uniwersytet Jagielloński, Wydział Chemii, Kraków, Poland
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Sumikura S, Mori S, Shimizu S, Usami H, Suzuki E. Syntheses of NiO nanoporous films using nonionic triblock co-polymer templates and their application to photo-cathodes of p-type dye-sensitized solar cells. J Photochem Photobiol A Chem 2008. [DOI: 10.1016/j.jphotochem.2008.04.007] [Citation(s) in RCA: 144] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Theoretical studies on the absorption spectra of heteroleptic ruthenium polypyridyl dyes for nanocrystalline TiO2 solar cells: Revisited with transition-component analysis. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2007.05.051] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Sumikura S, Mori S, Shimizu S, Usami H, Suzuki E. Photoelectrochemical characteristics of cells with dyed and undyed nanoporous p-type semiconductor CuO electrodes. J Photochem Photobiol A Chem 2008. [DOI: 10.1016/j.jphotochem.2007.07.035] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Harris JA, Trotter K, Brunschwig BS. Interfacial Electron Transfer in Metal Cyanide-Sensitized TiO2 Nanoparticles. J Phys Chem B 2007; 111:6695-702. [PMID: 17402776 DOI: 10.1021/jp0679313] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electroabsorption (Stark) spectroscopy has been used to study the charge-transfer absorption from a transition-metal-cyanide complex to a TiO2 nanoparticle. Transition-metal cyanide/TiO2(particle) systems were synthesized using FeII(CN)(6)4-, RuII(CN)6(4-), MoIV(CN)(8)4-, and WIV(CN)8(4-). On formation of the M(CN)n4-/TiO2(particle) system, a new metal-to-particle charge-transfer (MPCT) absorption band is observed in the 390-480 nm region. Analysis of the absorption spectra suggests that the TiO2 level involved in the MPCT transition resides at significantly higher energy than the bottom of the conduction band and that the electronic coupling between the two metal centers is the dominant factor determining the position of the MPCT band maximum. The average charge-transfer distances determined by Stark spectra range from 4.1-4.7 A. The observation of relatively short charge-transfer distances leads to the conclusion that the MPCT absorption is from the transition-metal cyanide center to a level that is localized on the Ti atom bound to a nitrogen end of the [O2Ti-N-C-M(CN)x] system. The electronic coupling, Hab, calculated for a two state model is similar to values observed in dinuclear metal complexes.
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Affiliation(s)
- James A Harris
- Molecular Materials Research Center, Beckman Institute, MC 139-74, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, USA
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Bignozzi CA, Schoonover JR, Scandola F. A Supramolecular Approach to Light Harvesting and Sensitization of Wide-Bandgap Semiconductors: Antenna Effects and Charge Separation. PROGRESS IN INORGANIC CHEMISTRY 2007. [DOI: 10.1002/9780470166451.ch1] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Hoertz PG, Staniszewski A, Marton A, Higgins GT, Incarvito CD, Rheingold AL, Meyer GJ. Toward Exceeding the Shockley−Queisser Limit: Photoinduced Interfacial Charge Transfer Processes that Store Energy in Excess of the Equilibrated Excited State. J Am Chem Soc 2006; 128:8234-45. [PMID: 16787088 DOI: 10.1021/ja060470e] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Nanocrystalline (anatase), mesoporous TiO2 thin films were functionalized with [Ru(bpy)2(deebq)](PF6)2, [Ru(bq)2(deeb)](PF6)2, [Ru(deebq)2(bpy)](PF6)2, [Ru(bpy)(deebq)(NCS)2], or [Os(bpy)2(deebq)](PF6)2, where bpy is 2,2'-bipyridine, bq is 2,2'-biquinoline, and deeb and deebq are 4,4'-diethylester derivatives. These compounds bind to the nanocrystalline TiO2 films in their carboxylate forms with limiting surface coverages of 8 (+/- 2) x 10(-8) mol/cm2. Electrochemical measurements show that the first reduction of these compounds (-0.70 V vs SCE) occurs prior to TiO2 reduction. Steady state illumination in the presence of the sacrificial electron donor triethylamine leads to the appearance of the reduced sensitizer. The thermally equilibrated metal-to-ligand charge-transfer excited state and the reduced form of these compounds do not inject electrons into TiO2. Nanosecond transient absorption measurements demonstrate the formation of an extremely long-lived charge separated state based on equal concentrations of the reduced and oxidized compounds. The results are consistent with a mechanism of ultrafast excited-state injection into TiO2 followed by interfacial electron transfer to a ground-state compound. The quantum yield for this process was found to increase with excitation energy, a behavior attributed to stronger overlap between the excited sensitizer and the semiconductor acceptor states. For example, the quantum yields for [Os(bpy)2(dcbq)]/TiO2 were phi(417 nm) = 0.18 +/- 0.02, phi(532.5 nm) = 0.08 +/- 0.02, and phi(683 nm) = 0.05 +/- 0.01. Electron transfer to yield ground-state products occurs by lateral intermolecular charge transfer. The driving force for charge recombination was in excess of that stored in the photoluminescent excited state. Chronoabsorption measurements indicate that ligand-based intermolecular electron transfer was an order of magnitude faster than metal-centered intermolecular hole transfer. Charge recombination was quantified with the Kohlrausch-Williams-Watts model.
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Affiliation(s)
- Paul G Hoertz
- Department of Chemistry and Materials Science and Engineering, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, USA
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Creutz C, Brunschwig BS, Sutin N. Interfacial charge transfer absorption: Application to metal–molecule assemblies. Chem Phys 2006. [DOI: 10.1016/j.chemphys.2005.12.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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31
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Gervaldo M, Fungo F, Durantini EN, Silber JJ, Sereno L, Otero L. Carboxyphenyl Metalloporphyrins as Photosensitizers of Semiconductor Film Electrodes. A Study of the Effect of Different Central Metals. J Phys Chem B 2005; 109:20953-62. [PMID: 16853716 DOI: 10.1021/jp0536596] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Free-base (P), Zn(II) (P(Zn)), Cu(II) (P(Cu)), Pd(II) (P(Pd)), Ni(II) (P(Ni)), and Co(II) (P(Co)) 5-(4-carboxyphenyl)-10,15,20-tris(4-methylphenyl) porphyrins were designed and synthesized to be employed as spectral senzitizers in photoelectrochemical cells. The dyes were studied adsorbed on SnO(2) nanocrystalline semiconductor and also in Langmuir-Blodgett film ITO electrodes in order to disclose the effect of molecular packing on the studied properties. Electron injection yields were obtained by fluorescence quenching analysis comparing with the dyes adsorbed on a SiO(2) nanocrystalline insulator. Back electron-transfer kinetics were measured by using laser flash photolysis. The unmetallized and metallized molecules have different singlet state energies, fluorescence quantum yields, and redox properties. The quantum yields of sensitized photocurrent generation are shown to be highly dependent on the identity of the central metal. It is shown that P(Ni) and P(Co) do not present a photoelectric effect. The other porhyrins present reproducible photocurrent, P(Pd) being the one that gives the highest quantum yield even in closely packet ITO/LB films. Photocurrent quantum yields increase as the dye ground-state oxidation potential becomes more anodic, which is in agreement with the observation, obtained by laser flash photolysis, that back electron-transfer kinetics decrease with the increase in the driving force for the recombination process. This effect could be exploited as a design element in the development of new and better sensitizers for high-efficiency solar cells involving porphyrins and related dyes.
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Affiliation(s)
- Miguel Gervaldo
- Departamento de Química, Universidad Nacional de Río Cuarto, Agencia Postal Nro 3, X5804BYA Río Cuarto, Argentina
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She C, Anderson NA, Guo J, Liu F, Goh WH, Chen DT, Mohler DL, Tian ZQ, Hupp JT, Lian T. pH-Dependent Electron Transfer from Re-bipyridyl Complexes to Metal Oxide Nanocrystalline Thin Films. J Phys Chem B 2005; 109:19345-55. [PMID: 16853498 DOI: 10.1021/jp053948u] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Photoinduced interfacial electron transfer (ET) from molecular adsorbates to semiconductor nanoparticles has been a subject of intense recent interest. Unlike intramolecular ET, the existence of a quasicontinuum of electronic states in the solid leads to a dependence of ET rate on the density of accepting states in the semiconductor, which varies with the position of the adsorbate excited-state oxidation potential relative to the conduction band edge. For metal oxide semiconductors, their conduction band edge position varies with the pH of the solution, leading to pH-dependent interfacial ET rates in these materials. In this work we examine this dependence in Re(L(P))(CO)3Cl (or ReC1P) [L(P) = 2,2'-bipyridine-4,4'-bis-CH2PO(OH)2] and Re(L(A))(CO)3Cl (or ReC1A) [L(A) = 2,2'-bipyridine-4,4'-bis-CH2COOH] sensitized TiO2 and ReC1P sensitized SnO2 nanocrystalline thin films using femtosecond transient IR spectroscopy. ET rates are measured as a function of pH by monitoring the CO stretching modes of the adsorbates and mid-IR absorption of the injected electrons. The injection rate to TiO2 was found to decrease by 1000-fold from pH 0-9, while it reduced by only a factor of a few to SnO2 over a similar pH range. Comparison with the theoretical predictions based on Marcus' theory of nonadiabatic interfacial ET suggests that the observed pH-dependent ET rate can be qualitatively accounted for by considering the change of density of electron-accepting states caused by the pH-dependent conduction band edge position.
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Affiliation(s)
- Chunxing She
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
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Photosensitization of thin SnO2 nanocrystalline semiconductor film electrodes with electron donor–acceptor metallodiporphyrin dyad. Chem Phys 2005. [DOI: 10.1016/j.chemphys.2004.11.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Abstract
Electron transfer across the molecule-semiconductor interface is a fundamental process that is relevant to many applications of nanoparticles, such as dye-sensitized solar cells and molecular electronics. This review summarizes recent progress in understanding electron transfer dynamics from molecular adsorbates to semiconductor nanoparticles. Photoexcitation of molecular adsorbates to their excited states is followed by electron injection into semiconductor nanoparticles. The products of electron injection (oxidized adsorbate and electrons in semiconductor) are monitored by their electronic and vibrational spectra, allowing direct measurement of injection rate. The dependence of injection rate on the properties of semiconductor nanoparticle, molecular adsorbate, intervening bridging and anchoring group, and interfacial environment are discussed and compared with Marcus theory of interfacial electron transfer.
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Affiliation(s)
- Neil A Anderson
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA.
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Kang J, Nelson JA, Lu M, Xie B, Peng Z, Powell DR. Charge-Transfer Hybrids Containing Covalently Bonded Polyoxometalates and Ferrocenyl Units. Inorg Chem 2004; 43:6408-13. [PMID: 15446891 DOI: 10.1021/ic049250x] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two new charge-transfer hybrids with one or two ferrocenyl units covalently attached to a hexamolybdate cluster through an extended pi-conjugated bridge have been prepared using Pd-catalyzed coupling reactions on monoiodo- or diiodo-functionalized cluster substrates in over 60% yields. These hybrids have been characterized by (1)H NMR, FTIR, electrospray ionization mass spectrometry, and X-ray diffraction. The electronic spectra of these hybrids show a broad absorption tail extending beyond 550 nm, indicating the existence of charge-transfer transition from the ferrocenyl donor to the cluster acceptor. The observation of the clear charge-transfer transition indicates the contribution of charge-transfer resonance to the ground state in both 2a and 2b even though the donor-acceptor separation distance of 11.29 A is rather long, signaling a through-bond charge-transfer nature made possible by the organic pi-conjugated bridge. Cyclic voltammetry studies reveal a one-electron oxidation wave and a one-electron reduction wave for the hybrid with one ferrocenyl unit. For the one with two ferrocenyl units, a lower reduction potential and a two-electron oxidation wave are observed, indicating negligible electronic interactions between the two ferrocenyl units.
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Affiliation(s)
- Jeonghee Kang
- Departments of Chemistry, University of Missouri-Kansas City, Kansas City, Missouri 64110, and University of Kansas, Lawrence, Kansas 66045, USA
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Katoh R, Furube A, Barzykin AV, Arakawa H, Tachiya M. Kinetics and mechanism of electron injection and charge recombination in dye-sensitized nanocrystalline semiconductors. Coord Chem Rev 2004. [DOI: 10.1016/j.ccr.2004.03.017] [Citation(s) in RCA: 139] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Katoh R, Furube A, Yoshihara T, Hara K, Fujihashi G, Takano S, Murata S, Arakawa H, Tachiya M. Efficiencies of Electron Injection from Excited N3 Dye into Nanocrystalline Semiconductor (ZrO2, TiO2, ZnO, Nb2O5, SnO2, In2O3) Films. J Phys Chem B 2004. [DOI: 10.1021/jp031260g] [Citation(s) in RCA: 473] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ryuzi Katoh
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan, and Sumitomo Osaka Cement Co., Ltd., 585 Toyotomi, Funabashi, Chiba 274-8601, Japan
| | - Akihiro Furube
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan, and Sumitomo Osaka Cement Co., Ltd., 585 Toyotomi, Funabashi, Chiba 274-8601, Japan
| | - Toshitada Yoshihara
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan, and Sumitomo Osaka Cement Co., Ltd., 585 Toyotomi, Funabashi, Chiba 274-8601, Japan
| | - Kohjiro Hara
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan, and Sumitomo Osaka Cement Co., Ltd., 585 Toyotomi, Funabashi, Chiba 274-8601, Japan
| | - Gaku Fujihashi
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan, and Sumitomo Osaka Cement Co., Ltd., 585 Toyotomi, Funabashi, Chiba 274-8601, Japan
| | - Shingo Takano
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan, and Sumitomo Osaka Cement Co., Ltd., 585 Toyotomi, Funabashi, Chiba 274-8601, Japan
| | - Shigeo Murata
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan, and Sumitomo Osaka Cement Co., Ltd., 585 Toyotomi, Funabashi, Chiba 274-8601, Japan
| | - Hironori Arakawa
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan, and Sumitomo Osaka Cement Co., Ltd., 585 Toyotomi, Funabashi, Chiba 274-8601, Japan
| | - M. Tachiya
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan, and Sumitomo Osaka Cement Co., Ltd., 585 Toyotomi, Funabashi, Chiba 274-8601, Japan
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Stroyuk A, Granchak V, Korzhak A, Kuchmii S. Photoinitiation of buthylmethacrylate polymerization by colloidal semiconductor nanoparticles. J Photochem Photobiol A Chem 2004. [DOI: 10.1016/s1010-6030(03)00371-x] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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40
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Katoh R, Furube A, Hara K, Murata S, Sugihara H, Arakawa H, Tachiya M. Efficiencies of Electron Injection from Excited Sensitizer Dyes to Nanocrystalline ZnO Films as Studied by Near-IR Optical Absorption of Injected Electrons. J Phys Chem B 2002. [DOI: 10.1021/jp021484j] [Citation(s) in RCA: 119] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ryuzi Katoh
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan
| | - Akihiro Furube
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan
| | - Kohjiro Hara
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan
| | - Shigeo Murata
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan
| | - Hideki Sugihara
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan
| | - Hironori Arakawa
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan
| | - M. Tachiya
- Photoreaction Control Research Center (PCRC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, Tsukuba, Ibaraki 305-8565, Japan
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Kuciauskas D, Monat JE, Villahermosa R, Gray HB, Lewis NS, McCusker JK. Transient Absorption Spectroscopy of Ruthenium and Osmium Polypyridyl Complexes Adsorbed onto Nanocrystalline TiO2 Photoelectrodes. J Phys Chem B 2002. [DOI: 10.1021/jp014589f] [Citation(s) in RCA: 176] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Darius Kuciauskas
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125 and Department of Chemistry, University of California at Berkeley, Berkeley, California 94720-1460
| | - Jeremy E. Monat
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125 and Department of Chemistry, University of California at Berkeley, Berkeley, California 94720-1460
| | - Randy Villahermosa
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125 and Department of Chemistry, University of California at Berkeley, Berkeley, California 94720-1460
| | - Harry B. Gray
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125 and Department of Chemistry, University of California at Berkeley, Berkeley, California 94720-1460
| | - Nathan S. Lewis
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125 and Department of Chemistry, University of California at Berkeley, Berkeley, California 94720-1460
| | - James K. McCusker
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125 and Department of Chemistry, University of California at Berkeley, Berkeley, California 94720-1460
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Electron Transfer at Dye-sensitized Solar Cells. 2. JOURNAL OF COMPUTER AIDED CHEMISTRY 2002. [DOI: 10.2751/jcac.3.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Photobiocatalytic production of hydrogen using sensitized TiO2–MV2+ system coupled Rhodopseudomonas capsulata. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s1381-1169(99)00417-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Mitzi DB, Chondroudis K, Kagan CR. Design, Structure, and Optical Properties of Organic-Inorganic Perovskites Containing an Oligothiophene Chromophore. Inorg Chem 1999; 38:6246-6256. [PMID: 11671340 DOI: 10.1021/ic991048k] [Citation(s) in RCA: 147] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A quaterthiophene derivative, 5,5' "-bis(aminoethyl)-2,2':5',2' ':5' ',2' "-quaterthiophene (AEQT), has been selected for incorporation within the layered organic-inorganic perovskite structure. In addition to having an appropriate molecular shape and two tethering aminoethyl groups to bond to the inorganic framework, AEQT is also a dye and can influence the optical properties of lead(II) halide-based perovskites. Crystals of C(20)H(22)S(4)N(2)PbBr(4) were grown from a slowly cooled aqueous solution containing lead(II) bromide and quaterthiophene derivative (AEQT.2HBr) salts. The new layered perovskite adopts a monoclinic (C2/c) subcell with the lattice parameters a = 39.741(2) Å, b = 5.8420(3) Å, c = 11.5734(6) Å, beta = 92.360(1) degrees, and Z = 4. Broad superstructure peaks are observed in the X-ray diffraction data, indicative of a poorly ordered, doubled supercell along both the a and b axes. The quaterthiophene segment of AEQT(2+) is nearly planar, with a syn-anti-syn relationship between adjacent thiophene rings. Each quaterthiophene chromophore is ordered between nearest-neighbor lead(II) bromide sheets in a herringbone arrangement with respect to neighboring quaterthiophenes. Room temperature optical absorption spectra for thermally ablated films of the perovskites (AEQT)PbX(4) (X = Cl, Br, I) exhibit an exciton peak arising from the lead(II) halide sheets, along with absorption from the quaterthiophene moiety. No evidence of the inorganic sheet excitonic transition is observed in the photoluminescence spectra for any of the chromophore-containing perovskites. However, strong quaterthiophene photoluminescence is observed for X = Cl, with an emission peak at approximately lambda(max) = 532 nm. Similar photoluminescence is observed for the X = Br and I materials, but with substantial quenching, as the inorganic layer band gap decreases relative to the chromophore HOMO-LUMO gap.
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Affiliation(s)
- David B. Mitzi
- T. J. Watson Research Center, IBM P.O. Box 218, Yorktown Heights, New York 10598
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Liu Y, Dadap JI, Zimdars D, Eisenthal KB. Study of Interfacial Charge-Transfer Complex on TiO2 Particles in Aqueous Suspension by Second-Harmonic Generation. J Phys Chem B 1999. [DOI: 10.1021/jp984288e] [Citation(s) in RCA: 142] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yan Liu
- Department of Chemistry, Columbia University, New York, New York 10027
| | - J. I. Dadap
- Department of Chemistry, Columbia University, New York, New York 10027
| | - David Zimdars
- Department of Chemistry, Columbia University, New York, New York 10027
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47
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Ishikawa M, Yogi O, Ye JY, Yasuda T, Maruyama Y. Grouping of Independent Single Molecules on Silicon Surfaces. Anal Chem 1998. [DOI: 10.1021/ac980622r] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mitsuru Ishikawa
- Joint Research Center for Atom Technology (JRCAT)Angstrom Technology Partnership (ATP) and JRCATNational Institute for Advanced Interdisciplinary Research (NAIR), 1-1-4 Higashi, Tsukuba, Ibaraki 305-0046, Japan
| | - Osamu Yogi
- Joint Research Center for Atom Technology (JRCAT)Angstrom Technology Partnership (ATP) and JRCATNational Institute for Advanced Interdisciplinary Research (NAIR), 1-1-4 Higashi, Tsukuba, Ibaraki 305-0046, Japan
| | - Jing Yong Ye
- Joint Research Center for Atom Technology (JRCAT)Angstrom Technology Partnership (ATP) and JRCATNational Institute for Advanced Interdisciplinary Research (NAIR), 1-1-4 Higashi, Tsukuba, Ibaraki 305-0046, Japan
| | - Tetsuji Yasuda
- Joint Research Center for Atom Technology (JRCAT)Angstrom Technology Partnership (ATP) and JRCATNational Institute for Advanced Interdisciplinary Research (NAIR), 1-1-4 Higashi, Tsukuba, Ibaraki 305-0046, Japan
| | - Yoshihiro Maruyama
- Tsukuba Research Laboratory, Hamamatsu Photonics K. K., 5-9-2 Tokodai, Tsukuba, Ibaraki 300-2635, Japan
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Affiliation(s)
- H. Peter Lu
- Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, P.O. Box 999, Richland, Washington 99352
| | - X. Sunney Xie
- Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, P.O. Box 999, Richland, Washington 99352
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49
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Suzuki YY, Beljonne D, Brédas JL. Two‐band tight‐binding model for push–pull polyenes. J Chem Phys 1996. [DOI: 10.1063/1.471394] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ashokkumar M, Kudo A, Sakata T. Photoelectrochemical Properties of RuS2-Coated TiO2Electrodes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1995. [DOI: 10.1246/bcsj.68.2491] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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