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Tsai CN, Tian YH, Shi X, Lord RL, Schlegel HB, Chen YJ, Endicott JF. Experimental and DFT Characterization of Metal-to-Ligand Charge-Transfer Excited States of (Rutheniumammine)(Monodentate Aromatic Ligand) Chromophores. Inorg Chem 2013; 52:9774-90. [DOI: 10.1021/ic4016614] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Chia Nung Tsai
- Department of Chemistry, Fu-Jen Catholic University, New Taipei
City 24205, Taiwan, Republic of China
- Department of Chemistry, Wayne State University, Detroit, Michigan
48202, United States
| | - Yi-Han Tian
- Department of Chemistry, Fu-Jen Catholic University, New Taipei
City 24205, Taiwan, Republic of China
| | - Xuetao Shi
- Department of Chemistry, Wayne State University, Detroit, Michigan
48202, United States
| | - Richard L. Lord
- Department of Chemistry, Wayne State University, Detroit, Michigan
48202, United States
| | - H. Bernhard Schlegel
- Department of Chemistry, Wayne State University, Detroit, Michigan
48202, United States
| | - Yuan Jang Chen
- Department of Chemistry, Fu-Jen Catholic University, New Taipei
City 24205, Taiwan, Republic of China
- Department of Chemistry, Wayne State University, Detroit, Michigan
48202, United States
| | - John F. Endicott
- Department of Chemistry, Wayne State University, Detroit, Michigan
48202, United States
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Ai X, Anderson NA, Guo J, Lian T. Electron injection dynamics of Ru polypyridyl complexes on SnO2 nanocrystalline thin films. J Phys Chem B 2007; 109:7088-94. [PMID: 16851807 DOI: 10.1021/jp046037d] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ultrafast infrared spectroscopy was utilized to investigate the electron-transfer dynamics from Ru(dcbpy)(2)(X)(2) complexes (dcbpy = 4,4'-dicarboxy-2,2'-bipyridine; X(2) = SCN(-), 2CN(-), and dcbpy; referenced as RuN3, Ru505, and Ru470, respectively) to nanocrystalline SnO(2) films. For both films exposed to air (dry) and submerged in a pH 2 buffer solution, all traces show biphasic dynamics with a small ultrafast component (less than 10%) and nonexponential slow component, indicating that most injection occurs from thermalized excited state of the dye. In the dry film, the injection rate becomes slower, comparing RuN3, Ru505, and Ru470, correlating with decreasing excited-state oxidation potentials in these dyes. However, the variation of injection rate with dye potential is less noticeable at pH 2. The possible reason for the different injection dynamics in these dyes and under different environments are discussed. These injection dynamics are also compared with those on TiO(2) and ZnO.
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Affiliation(s)
- Xin Ai
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
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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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Ai X, Guo J, Anderson NA, Lian T. Ultrafast Electron Transfer from Ru Polypyridyl Complexes to Nb2O5 Nanoporous Thin Films. J Phys Chem B 2004. [DOI: 10.1021/jp0483977] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xin Ai
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | - Jianchang Guo
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | - Neil A. Anderson
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | - Tianquan Lian
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
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Anderson NA, Lian T. Ultrafast electron injection from metal polypyridyl complexes to metal-oxide nanocrystalline thin films. Coord Chem Rev 2004. [DOI: 10.1016/j.ccr.2004.03.029] [Citation(s) in RCA: 117] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Anderson NA, Ai X, Lian T. Electron Injection Dynamics from Ru Polypyridyl Complexes to ZnO Nanocrystalline Thin Films. J Phys Chem B 2003. [DOI: 10.1021/jp036201h] [Citation(s) in RCA: 109] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Neil A. Anderson
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | - Xin Ai
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | - Tianquan Lian
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
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Dimitrijevic NM, Saponjic ZV, Bartels DM, Thurnauer MC, Tiede DM, Rajh T. Revealing the Nature of Trapping Sites in Nanocrystalline Titanium Dioxide by Selective Surface Modification. J Phys Chem B 2003. [DOI: 10.1021/jp034064i] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Zoran V. Saponjic
- Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439
| | - David M. Bartels
- Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439
| | | | - David M. Tiede
- Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439
| | - Tijana Rajh
- Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439
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Asbury JB, Anderson NA, Hao E, Ai X, Lian T. Parameters Affecting Electron Injection Dynamics from Ruthenium Dyes to Titanium Dioxide Nanocrystalline Thin Film. J Phys Chem B 2003. [DOI: 10.1021/jp034148r] [Citation(s) in RCA: 211] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- John B. Asbury
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | - Neil A. Anderson
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | - Encai Hao
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | - Xin Ai
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
| | - Tianquan Lian
- Department of Chemistry, Emory University, Atlanta, Georgia 30322
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Rajh T, Chen LX, Lukas K, Liu T, Thurnauer MC, Tiede DM. Surface Restructuring of Nanoparticles: An Efficient Route for Ligand−Metal Oxide Crosstalk. J Phys Chem B 2002. [DOI: 10.1021/jp021235v] [Citation(s) in RCA: 606] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Persson P, Bergström R, Ojamäe L, Lunell S. Quantum-chemical studies of metal oxides for photoelectrochemical applications. ADVANCES IN QUANTUM CHEMISTRY 2002. [DOI: 10.1016/s0065-3276(02)41054-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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