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Title: Light energy conversion with pheophytin a monolayer at the SnO[sub 2] optically transparent electrode

Abstract

The photoelectrochemical, absorption and fluorescence properties of pheophytin a mono- and multilayers, deposited on optically transparent tin oxide electrodes and quartz slides were investigated. Spectra of photocurrents coincided with the absorption spectra of photosynthetic pigment in monolayers at the SnO[sub 2]/solution interfaces. The anodic and cathodic photocurrents were measured at various electrode potentials. Effects of pH, electrode potentials, and concentration of redox reagents on the conversion of solar energy in monolayers on optically transparent electrodes are discussed. The absorption and fluorescence spectral characteristics, and fluorescence lifetime measurements of pheophytin a in monolayers and thin films are also discussed in view of the aggregation properties of the photosynthetic pigment. The thermodynamics of adsorption of large amphiphilic compounds at the interface between two immiscible liquids is considered. The adsorption behavior of pheophytin a dissolved in different solvents is investigated. The thermodynamic parameters of pheophytin a adsorption at octane/water and benzene/water interfaces were determined.

Authors:
 [1];  [2]; ; ; ;  [3]
  1. Univ. of California, Davis, CA (United States)
  2. Univ. of Texas, Dallas, TX (United States)
  3. Universite du Quebec a Trois-Riveres, Quebec (Canada)
Publication Date:
OSTI Identifier:
7285637
Resource Type:
Journal Article
Journal Name:
Journal of Solution Chemistry; (United States)
Additional Journal Information:
Journal Volume: 23:2; Journal ID: ISSN 0095-9782
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; PHYTOCHROMES; SOLAR ENERGY CONVERSION; ABSORPTION SPECTROSCOPY; FLUORESCENCE SPECTROSCOPY; TIN OXIDES; CHALCOGENIDES; CONVERSION; EMISSION SPECTROSCOPY; ENERGY CONVERSION; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PIGMENTS; PROTEINS; SPECTROSCOPY; TIN COMPOUNDS; 140500* - Solar Energy Conversion

Citation Formats

Volkov, A G, Markin, V S, Leblanc, R M, Gugeshashvili, M I, Zelent, B, and Munger, G. Light energy conversion with pheophytin a monolayer at the SnO[sub 2] optically transparent electrode. United States: N. p., 1994. Web. doi:10.1007/BF00973548.
Volkov, A G, Markin, V S, Leblanc, R M, Gugeshashvili, M I, Zelent, B, & Munger, G. Light energy conversion with pheophytin a monolayer at the SnO[sub 2] optically transparent electrode. United States. https://doi.org/10.1007/BF00973548
Volkov, A G, Markin, V S, Leblanc, R M, Gugeshashvili, M I, Zelent, B, and Munger, G. 1994. "Light energy conversion with pheophytin a monolayer at the SnO[sub 2] optically transparent electrode". United States. https://doi.org/10.1007/BF00973548.
@article{osti_7285637,
title = {Light energy conversion with pheophytin a monolayer at the SnO[sub 2] optically transparent electrode},
author = {Volkov, A G and Markin, V S and Leblanc, R M and Gugeshashvili, M I and Zelent, B and Munger, G},
abstractNote = {The photoelectrochemical, absorption and fluorescence properties of pheophytin a mono- and multilayers, deposited on optically transparent tin oxide electrodes and quartz slides were investigated. Spectra of photocurrents coincided with the absorption spectra of photosynthetic pigment in monolayers at the SnO[sub 2]/solution interfaces. The anodic and cathodic photocurrents were measured at various electrode potentials. Effects of pH, electrode potentials, and concentration of redox reagents on the conversion of solar energy in monolayers on optically transparent electrodes are discussed. The absorption and fluorescence spectral characteristics, and fluorescence lifetime measurements of pheophytin a in monolayers and thin films are also discussed in view of the aggregation properties of the photosynthetic pigment. The thermodynamics of adsorption of large amphiphilic compounds at the interface between two immiscible liquids is considered. The adsorption behavior of pheophytin a dissolved in different solvents is investigated. The thermodynamic parameters of pheophytin a adsorption at octane/water and benzene/water interfaces were determined.},
doi = {10.1007/BF00973548},
url = {https://www.osti.gov/biblio/7285637}, journal = {Journal of Solution Chemistry; (United States)},
issn = {0095-9782},
number = ,
volume = 23:2,
place = {United States},
year = {Tue Feb 01 00:00:00 EST 1994},
month = {Tue Feb 01 00:00:00 EST 1994}
}