Staff Members - Benha University
Dye-sensitized nanocrystalline CdS and ZnS solar cells with different organic dyes
• 2009
Publication Information
Authors
Safenaz M. Reda and Said A. El-Sherbieny
Keywords
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Journal
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Volume
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Issue
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Pages
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publication.type
International
Paper Link
Open Link
Supplementary Materials
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Abstract
We have developed dye-sensitized nanocrystalline CdS and ZnS solar cells (DSSCs)
based on crystal violet, methylene blue, and fluorescein photosensitizers. Nanocrystalline
CdS and ZnS were synthesized by a green synthesis method using starch as the capping
agent. Characterization of nanocrystalline CdS and ZnS was carried out by optical
absorption and x-ray diffraction. The results indicate that CdS and ZnS prepared by this
method may be used as photoelectodes in photo-electro-chemical energy conversion
systems. DSSCs have been built and their photocurrent, open-circuit voltage, fill factor,
and efficiency have been measured under direct sunlight illumination (1000 Wcm
2).
The efficiency of the cells made from dye-CdS was much higher than that of the cells
made from dye-ZnS. This can be attributed to the particle size effect. Among the prepared
dye-sensitized solar cells, a DSSC based on fluorescein dye as the photosensitizer
produced the highest overall light solar energy to electricity conversion efficiency
based on crystal violet, methylene blue, and fluorescein photosensitizers. Nanocrystalline
CdS and ZnS were synthesized by a green synthesis method using starch as the capping
agent. Characterization of nanocrystalline CdS and ZnS was carried out by optical
absorption and x-ray diffraction. The results indicate that CdS and ZnS prepared by this
method may be used as photoelectodes in photo-electro-chemical energy conversion
systems. DSSCs have been built and their photocurrent, open-circuit voltage, fill factor,
and efficiency have been measured under direct sunlight illumination (1000 Wcm
2).
The efficiency of the cells made from dye-CdS was much higher than that of the cells
made from dye-ZnS. This can be attributed to the particle size effect. Among the prepared
dye-sensitized solar cells, a DSSC based on fluorescein dye as the photosensitizer
produced the highest overall light solar energy to electricity conversion efficiency