Photovoltaic properties of mixed monolayers of chlorophyll a and carotenoid canthaxanthin

A. Diarra; S. Hotchandani; J. J. Max; R. M. Leblanc

doi:10.1039/F29868202217

Photovoltaic properties of mixed monolayers of chlorophyll a and carotenoid canthaxanthin

A. Diarra, S. Hotchandani, J. J. Max, R. M. Leblanc

Research output: Contribution to journal › Article › peer-review

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Abstract

Photovoltaic studies of cells of the type (Al|pigment monolayers|Ag) prepared by sandwiching the mixed monolayers of chlorophyll (Chl) a and the carotenoid canthaxanthin (Cantha) between electrodes of Al and Ag have been made. The cells (Al|Cantha monolayers|Chl a monolayers|Ag) do not show any photocurrent, while photocurrent for cells (Al|Chl a|mixture of Chl a and Cantha|Chl a|Ag) has been observed. This has been explained in terms of the characteristics of metal|semiconductor junction. The action spectra of the cells have been found to resemble the absorption spectra, which indicates that the singlet excitons are the precursors of the charge carriers. The appearance of photocurrent in absorption region of canthaxanthin is suggested to be due to the energy transfer from canthaxanthin to Chl a.

Original language	English (US)
Pages (from-to)	2217-2231
Number of pages	15
Journal	Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
Volume	82
Issue number	12
DOIs	https://doi.org/10.1039/F29868202217
State	Published - Dec 1 1986
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry

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title = "Photovoltaic properties of mixed monolayers of chlorophyll a and carotenoid canthaxanthin",

abstract = "Photovoltaic studies of cells of the type (Al|pigment monolayers|Ag) prepared by sandwiching the mixed monolayers of chlorophyll (Chl) a and the carotenoid canthaxanthin (Cantha) between electrodes of Al and Ag have been made. The cells (Al|Cantha monolayers|Chl a monolayers|Ag) do not show any photocurrent, while photocurrent for cells (Al|Chl a|mixture of Chl a and Cantha|Chl a|Ag) has been observed. This has been explained in terms of the characteristics of metal|semiconductor junction. The action spectra of the cells have been found to resemble the absorption spectra, which indicates that the singlet excitons are the precursors of the charge carriers. The appearance of photocurrent in absorption region of canthaxanthin is suggested to be due to the energy transfer from canthaxanthin to Chl a.",

author = "A. Diarra and S. Hotchandani and Max, {J. J.} and Leblanc, {R. M.}",

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AU - Diarra, A.

AU - Hotchandani, S.

AU - Max, J. J.

AU - Leblanc, R. M.

PY - 1986/12/1

Y1 - 1986/12/1

N2 - Photovoltaic studies of cells of the type (Al|pigment monolayers|Ag) prepared by sandwiching the mixed monolayers of chlorophyll (Chl) a and the carotenoid canthaxanthin (Cantha) between electrodes of Al and Ag have been made. The cells (Al|Cantha monolayers|Chl a monolayers|Ag) do not show any photocurrent, while photocurrent for cells (Al|Chl a|mixture of Chl a and Cantha|Chl a|Ag) has been observed. This has been explained in terms of the characteristics of metal|semiconductor junction. The action spectra of the cells have been found to resemble the absorption spectra, which indicates that the singlet excitons are the precursors of the charge carriers. The appearance of photocurrent in absorption region of canthaxanthin is suggested to be due to the energy transfer from canthaxanthin to Chl a.

AB - Photovoltaic studies of cells of the type (Al|pigment monolayers|Ag) prepared by sandwiching the mixed monolayers of chlorophyll (Chl) a and the carotenoid canthaxanthin (Cantha) between electrodes of Al and Ag have been made. The cells (Al|Cantha monolayers|Chl a monolayers|Ag) do not show any photocurrent, while photocurrent for cells (Al|Chl a|mixture of Chl a and Cantha|Chl a|Ag) has been observed. This has been explained in terms of the characteristics of metal|semiconductor junction. The action spectra of the cells have been found to resemble the absorption spectra, which indicates that the singlet excitons are the precursors of the charge carriers. The appearance of photocurrent in absorption region of canthaxanthin is suggested to be due to the energy transfer from canthaxanthin to Chl a.

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Photovoltaic properties of mixed monolayers of chlorophyll a and carotenoid canthaxanthin

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