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Fungo F, Otero L, Durantini EN, Silber JJ, Sereno L, Mariño-Ochoa E, Moore TA, Moore AL, Gust D. Photoelectrochemistry of a Pigment Used in Artificial Photosynthesis: An Anilinocarotenoid. J Phys Chem B 2001. [DOI: 10.1021/jp001509j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- F. Fungo
- Departamento de Química y Física, Universidad Nacional de Río Cuarto, Agencia Postal Numero 3, 5800 Río Cuarto, Argentina, and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
| | - L. Otero
- Departamento de Química y Física, Universidad Nacional de Río Cuarto, Agencia Postal Numero 3, 5800 Río Cuarto, Argentina, and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
| | - E. N. Durantini
- Departamento de Química y Física, Universidad Nacional de Río Cuarto, Agencia Postal Numero 3, 5800 Río Cuarto, Argentina, and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
| | - J. J. Silber
- Departamento de Química y Física, Universidad Nacional de Río Cuarto, Agencia Postal Numero 3, 5800 Río Cuarto, Argentina, and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
| | - L. Sereno
- Departamento de Química y Física, Universidad Nacional de Río Cuarto, Agencia Postal Numero 3, 5800 Río Cuarto, Argentina, and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
| | - E. Mariño-Ochoa
- Departamento de Química y Física, Universidad Nacional de Río Cuarto, Agencia Postal Numero 3, 5800 Río Cuarto, Argentina, and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
| | - T. A. Moore
- Departamento de Química y Física, Universidad Nacional de Río Cuarto, Agencia Postal Numero 3, 5800 Río Cuarto, Argentina, and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
| | - A. L. Moore
- Departamento de Química y Física, Universidad Nacional de Río Cuarto, Agencia Postal Numero 3, 5800 Río Cuarto, Argentina, and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
| | - D. Gust
- Departamento de Química y Física, Universidad Nacional de Río Cuarto, Agencia Postal Numero 3, 5800 Río Cuarto, Argentina, and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
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Ptak A, Chrzumnicka E, Planner A, Frackowiak D. Photoelectric properties of chlorophyll and carotene solutions in nematic liquid crystal located between semiconducting electrodes. Biophys Chem 1997; 65:165-70. [PMID: 17029852 DOI: 10.1016/s0301-4622(96)02256-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/1995] [Revised: 01/21/1996] [Accepted: 11/03/1996] [Indexed: 11/24/2022]
Abstract
The photopotential and photocurrent generation for chlorophyll a, beta-carotene and a mixture of these pigments dissolved in nematic liquid crystal and located between transparent semiconducting electrodes were measured. Both pigments exhibit photopotential and photocurrent generation. From the photocurrent amplitudes it follows that the efficiency of electron transfer to a semiconducting electrode from beta-carotene is higher than from chlorophyll alpha. The photocurrent amplitude of the pigment mixture is slightly lower than that calculated as a sum of amplitudes of pigments located in separated cells. This difference can be explained by secondary effects, such as competition between carotene and chlorophyll molecules in a process of adsorption on a semiconducting electrode. Therefore it seems that no charge transfer complexes of chlorophyll and carotene are formed in the investigated model system.
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Affiliation(s)
- A Ptak
- Institute of Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland
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Sereno L, Silber JJ, Otero L, del Valle Bohorquez M, Moore AL, Moore TA, Gust D. Photoelectrochemistry of Langmuir−Blodgett Films of Carotenoid Pigments on ITO Electrodes. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp952300m] [Citation(s) in RCA: 77] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Leonides Sereno
- Departamento de Química y Física, Universidad National de Río Cuarto, Río Cuarto, Argentina; Department of Chemistry , Drake University , Des Moines, Iowa 50311; and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
| | - Juana J. Silber
- Departamento de Química y Física, Universidad National de Río Cuarto, Río Cuarto, Argentina; Department of Chemistry , Drake University , Des Moines, Iowa 50311; and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
| | - Luís Otero
- Departamento de Química y Física, Universidad National de Río Cuarto, Río Cuarto, Argentina; Department of Chemistry , Drake University , Des Moines, Iowa 50311; and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
| | - María del Valle Bohorquez
- Departamento de Química y Física, Universidad National de Río Cuarto, Río Cuarto, Argentina; Department of Chemistry , Drake University , Des Moines, Iowa 50311; and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
| | - Ana L. Moore
- Departamento de Química y Física, Universidad National de Río Cuarto, Río Cuarto, Argentina; Department of Chemistry , Drake University , Des Moines, Iowa 50311; and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
| | - Thomas A. Moore
- Departamento de Química y Física, Universidad National de Río Cuarto, Río Cuarto, Argentina; Department of Chemistry , Drake University , Des Moines, Iowa 50311; and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
| | - Devens Gust
- Departamento de Química y Física, Universidad National de Río Cuarto, Río Cuarto, Argentina; Department of Chemistry , Drake University , Des Moines, Iowa 50311; and Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604
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