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Energy Relay Dye Dynamics With Highly Purified Chlorophyll A as Photo-sensitizer

Published online by Cambridge University Press:  19 October 2012

Komal Magsi ,
Ping Lee ,
Yeona Kang  and
Charles M. Fortmann
Komal Magsi
Affiliation:
Materials Science Department, Stony Brook University, Stony Brook, NY, 11790, U.S.A. Idalia Solar Technologies, 270 Lafayette St. Suite 1402 New York, NY, 10012, U.S.A.
Ping Lee
Affiliation:
Materials Science Department, Stony Brook University, Stony Brook, NY, 11790, U.S.A. Idalia Solar Technologies, 270 Lafayette St. Suite 1402 New York, NY, 10012, U.S.A.
Yeona Kang
Affiliation:
Materials Science Department, Stony Brook University, Stony Brook, NY, 11790, U.S.A. Idalia Solar Technologies, 270 Lafayette St. Suite 1402 New York, NY, 10012, U.S.A.
Charles M. Fortmann
Affiliation:
Materials Science Department, Stony Brook University, Stony Brook, NY, 11790, U.S.A. Idalia Solar Technologies, 270 Lafayette St. Suite 1402 New York, NY, 10012, U.S.A.
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Abstract

Dye type solar cells, especially those incorporating low cost dyes suffer from a very narrow photo-response wavelength range. Motivated by natural photosynthesis research, energy relay dyes (ERDs) appear to offer a possibility to broaden the dye-cell spectral response. In-turn photovoltaic cells can be an extremely sensitive tool for investigation of dye ERD photochemistry. Sensitive Chlorophyll based dye-type solar cells were prepared from purified natural Chlorophyll A. The importance of Chlorophyll purity is discussed as well as the use of purified Chlorophyll A in combination with ERD’s. . Results shed light on many interesting phenomenon including the nature of purified Chlorophyll A excitation and absorption. Importantly, it was found by this work that the ERD architecture when combined with a photosensitizer do not appear to having greater absorption in the infrared region of the spectrum than the ERD alone indicating a lack of cooperative absorption.

Keywords

absorbentelectronic structureenergy generation
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1448: Symposium Z – Conjugated Organic Materials for Energy Conversion, Energy Storage and Charge Transport , 2012 , mrss12-1448-z07-51
Copyright
Copyright © Materials Research Society 2012

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References

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