REACTION OF EXCITED CHLOROPHYLL MOLECULES AT ELECTRODES AND IN PHOTOSYNTHESIS *

@article{Tributsch1972REACTIONOE,
  title={REACTION OF EXCITED CHLOROPHYLL MOLECULES AT ELECTRODES AND IN PHOTOSYNTHESIS *},
  author={Helmut Tributsch},
  journal={Photochemistry and Photobiology},
  year={1972},
  volume={16}
}
  • H. Tributsch
  • Published 1 October 1972
  • Chemistry
  • Photochemistry and Photobiology
Abstract— Excited molecules can exchange electrons with suitable electrodes in an electrochemical cell. Excitation energy of molecules can therefore be converted into electrochemical energy. Electrochemical reactions of excited chlorophyll molecules have been investigated with the help of semiconductor electrodes. It is suggested that this type of reaction also occurs during the primary steps of photosynthesis. Consequently, concepts of electrochemical kinetics would have to be applied in order… 

Structural Aspects of the Electrochemical Generator in Photosynthesis of Green Plants

Evidence has now accumulated that stimulation of photosynthetic electron transport leads to the generation of a proton electrochemical potential difference across the inner membrane of chloroplasts.

Photoelectrochemical Behavior of Chlorophyll a-Lipid Films on a Platinum Electrode in an Aqueous Electrolyte

The photoelectrochemical behavior of chlorophyll a-lipid mixed monolayers coated on a platinum electrode by the Langmuir-Blodgett technique was investigated under potentiostatic conditions in an

Photoelectrochemical effects in the electrolyte-pigment-metal system

  • J. Villar
  • Chemistry, Materials Science
    Journal of bioenergetics and biomembranes
  • 1976
Short-circuit photocurrents produced by a semitransparent metallic electrode covered with multilayers of chlorophyll and immersed in an electrolyte have been studied. The action spectrum of maximum

Photoelectrochemistry of microcrystalline chlorophyll a films

Thin films of microcrystalline chlorophyll a in contact with electrolytes have been studied. It is shown that the electrode acts as a photocathode, as indicated by the dependence of photoeffect on

From natural photosynthesis to molecular photovoltaics

ABSTRACT In many technological applications the mankind mimics the nature. One of the excellent examples is photosynthesis. The knowledge of the natural photosynthesis mechanisms is extremely useful

Simulating photosynthetic quantum conversion

Report reviews attempts to duplicate the process of photosynthesis using a physical system wherein the two quantum acts are separated in space. Included is a brief description of the natural

Biological components and bioelectronic interfaces of water splitting photoelectrodes for solar hydrogen production.

This work expands the concept of artificial photosynthesis toward PEC devices with vital bio-organic components and interfaces, and their integration into the built environment.
...

References

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ELECTROCHEMISTRY OF EXCITED MOLECULES: PHOTO‐ELECTROCHEMICAL REACTIONS OF CHLOROPHYLLS *

Abstract— Semiconductors with a sufficiently large energy gap, in contact with an electrolyte, can be used as electrodes for the study of electrochemical reactions of excited molecules. The behavior

Application of electrochemical kinetics to photosynthesis and oxidative phosphorylation: The redox element hypothesis and the principle of parametric energy coupling

The electrochemical approach presented here has been suggested and is supported by the observation, that with respect to electron capture and conversion of excitation energy into electrochemical energy, the behaviour of excited chlorophyll at suitable solid state (semiconductor) electrodes is very similar to that ofchlorophyll in photosynthetic reaction centers.

ELECTROCHEMICAL TECHNIQUES FOR THE STUDY OF PHOTOSENSITIZATION *

Abstract— Spectral photosensitization is discussed from an electrochemical point of view, as caused by electron transfer from or to excited molecules. General principles for a description of electron

DELAYED FLUORESCENCE IN PHOTOSYNTHETIC MATERIALS: TRANSIENT RESPONSE TO PULSED LIGHT IN CHLORELLA

Abstract— The decay of the delayed fluorescence intensity of Chlorella cells following a brief flash of light is investigated in the region of time from 1 msec to 1 sec with greater accuracy than

FLUORESCENCE AND LUMINESCENCE STUDIES OF IN VIVO CHLOROPHYLL WITH A LASER PHOSPHOROSCOPE *

Abstract— A simple apparatus using a He‐Ne laser and a rotating sector gives repetitive light pulses with rise and fall times of a few μsec and intensities of up to 0.65 W/cm2. Fluorescence during

AN ANALYSIS OF A TRIPLET EXCITON MODEL FOR THE DELAYED LIGHT IN CHLORELLA *

Abstract— The time dependence of the delayed light in the green alga Chlorella pyrenoidosa has been examined quantitatively in the 1 to 12 msec range after excitation with light pulses (A = 6328 Å)

Swenberg and Govindjee , Photochem

  • Phorobiol . Photochem . Photobiol .
  • 1971