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Photovoltaic Effects and Charge Transport Studies in Phycobiliproteins

Published online by Cambridge University Press:  15 February 2011

N. N. Beladakere ,
T. Ravindran ,
B. Bihari ,
S. Sengupta ,
K. A. Marx ,
J. Kumar ,
S. K. Tripathy ,
B. Wiley  and
D. L. Kaplan
N. N. Beladakere
Affiliation:
Center for Advanced Materials, Departments of Chemistry and Physics, University of Massachusetts Lowell, Lowell, MA 01854, U.S.A
T. Ravindran
Affiliation:
Center for Advanced Materials, Departments of Chemistry and Physics, University of Massachusetts Lowell, Lowell, MA 01854, U.S.A
B. Bihari
Affiliation:
Center for Advanced Materials, Departments of Chemistry and Physics, University of Massachusetts Lowell, Lowell, MA 01854, U.S.A
S. Sengupta
Affiliation:
Center for Advanced Materials, Departments of Chemistry and Physics, University of Massachusetts Lowell, Lowell, MA 01854, U.S.A
K. A. Marx
Affiliation:
Center for Advanced Materials, Departments of Chemistry and Physics, University of Massachusetts Lowell, Lowell, MA 01854, U.S.A
J. Kumar
Affiliation:
Center for Advanced Materials, Departments of Chemistry and Physics, University of Massachusetts Lowell, Lowell, MA 01854, U.S.A
S. K. Tripathy
Affiliation:
Center for Advanced Materials, Departments of Chemistry and Physics, University of Massachusetts Lowell, Lowell, MA 01854, U.S.A
B. Wiley
Affiliation:
Biotechnology Branch, U.S. Army Natick Research, Development and Engineering Center, Natick, MA 01760, U.S.A.
D. L. Kaplan
Affiliation:
Biotechnology Branch, U.S. Army Natick Research, Development and Engineering Center, Natick, MA 01760, U.S.A.
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Abstract

Phycobiliproteins form highly efficient light absorbing systems in certain algae. We have investigated the charge-transport phenomena in these proteins by analyzing the dark current-voltage and photocurrent characteristics obtained across Au-phycobiliprotein-Au samples. A photovoltaic effect was observed for Au-phycoerythrin-Au sample. At low intensity levels, the photocurrent closely follows Onsager's law of geminate recombination in three dimensions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 292: Symposium S – Biomolecular Materials , 1992 , 193
Copyright
Copyright © Materials Research Society 1993

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